Copyright: ® 1996 Seagate Technology, Inc.
Citation: Seagate Technology Desk Reference


Start Page - Contents
Seagate Technology Technical Support Desk Reference

Select a drive interface:

  ATA  	  ESDI 	  Fibre Channel

  IPI 	  MFM 	  RLL

  PCMCIA 	  SCSI 	  SMD

   Model Number Convert and Interpret

   Drives by Family	   Old Models prior to Seagate Mergers

   Controllers	   Cables and Pins

   Troubleshooting	   Glossary

   Phone Numbers	   About Info

    Drive Anatomy


Old Drive Models prior to Seagate Mergers

Old CDC / Imprimis

Old Conner Peripherals


Info - Copyright
Seagate Technical Support Desk Reference Information

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What's New!

Seagate's Technical Support Desk Reference

Copyright (c) 1991-1996 by Seagate Technology, Inc.  All rights reserved.

Seagate Technology, Inc.

Scotts Valley, CA

The information contained in the Seagate Technology Technical Support Desk Reference is for general reference. It is not intended to be a complete reference of computer or hard disc drive service information.  We have tried to ensure that the information contained herein is as current as possible.

Seagate reserves the right to change, without notice, product offerings or specifications.

LICENSE AGREEMENT AND WARRANTY DISCLAIMER

This is a legal agreement between you the purchaser and Seagate Technology, Inc.  By accessing Seagate Technology Technical Support Desk Reference, (the "Software"), you agree to be bound by the terms of this agreement.  If you do not agree, do not access the software.

Seagate provides the accompanying object code of the Software and nonexclusively licenses its use to you on the following terms and conditions.  The Software is Seagate's proprietary, copyrighted product.  Seagate grants you a limited access to use one copy of the Software.  You may not copy, distribute the Software for resale.  You may not reverse engineer, modify, rent, or lease the Software.  In addition, you may not disclose the information or data incorporated in the Software to others, in any format.

You accept the Software "as is" without any warranty whatsoever.  Seagate does not warrant that the Software will meet your requirements; that the Software is fit for any particular purpose or that the use of the Software will be error free.

SEAGATE EXPRESSLY DISCLAIMS ALL WARRANTIES, WHETHER ORAL OR WRITTEN, EXPRESSED OR IMPLIED, INCLUDING WITHOUT LIMITATION WARRANTIES OF MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE.  IN NO EVENT WILL SEAGATE BE LIABLE TO YOU, YOUR CUSTOMERS OR OTHER USERS IN ANY WAY BASED ON USE OF THE SOFTWARE, INCLUDING WITHOUT LIMITATION FOR ANY LOSS OF PROFITS, LOSS OF DATA OR USE OF THE SOFTWARE OR INDIRECT, INCIDENTAL, CONSEQUENTIAL, SPECIAL, OR EXEMPLARY DAMAGES ARISING OUT OF OR IN CONNECTION WITH THE USE OR INABILITY TO USE THE SOFTWARE.

© 1992-1996 Seagate Technology, Inc.

End of License Agreement.

The Seagate Technology Technical Support Desk Reference WILL BE updated with new drives, more troubleshooting, and appropriate miscellaneous material.  The latest copy can always be obtained from the Seagate Tech Support BBS.

We can also be reached by mail:

Seagate Technology, Inc.

Attn: Technical Support

920 Disc Drive

Scotts Valley, CA 95066

By FAX:	1-408-944-9120

Thank you for using the Seagate Technical Support Desk Reference!

Seagate Technical Support

DESKREF.HLP	part # 705717-701  Data file (January 1997 edition)

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Exploded View
Drive Anatomy - Exploded View


Billy Rudock, Staff Engineer

Telephone Technical Support

Seagate Technology Desk Reference Author


ATA (IDE) Drives List
ATA drive list:

1xxx = 3.5", half-height (41 mm)

ST1057A ST1090A ST1102A ST1111A ST1126A ST1133A ST1144A	ST1156A ST1162A ST1186A ST1201A ST1239A ST125A ST138A	ST1400A ST1401A ST1480A ST157A

2xxx = 5.25", half-height (41 mm)

ST2274A

ST2383A

ST274A

ST280A

3xxx = 3.5", 1"/25mm height, 5.7"/146mm depth

ST3051A ST3096A ST31060A ST31081A ST31082A ST3120A ST31220A ST3123A ST31270A ST31274A ST31275A ST31276A ST3144A ST3145A ST31621A ST31640A ST31720A ST3195A ST3211A	ST32132A ST32140A ST32161A ST3240A ST3243A ST3250A ST325AX ST32531A ST3270A ST3271A ST3283A ST3290A ST3291A ST3295A ST33240A ST3385A ST3390A ST3391A ST3420A ST3425A	ST34340A ST3491A ST3500A ST351AX ST352AX ST3541A ST3543A ST3544A ST3550A ST3600A ST3630A ST3635A ST3636A ST3655A ST3660A ST3780A ST3850A ST3851A ST3852A ST3853A

5xxx = 3.5", 1"/25mm height, 5"/127mm depth

ST51080A

ST51270A

ST52160A

ST52520A

ST5540A

ST5660A

ST5850A

ST5851A

7xxx = 1.8"

ST72A

ST75A

ST710A

ST720A

ST740A

9xxx = 2.5", .75"/19mm or .49"/12.5mm height

ST92A ST95A ST910AC ST920A ST9051A ST9052A ST9077A ST9080A ST9096A ST9100AG ST91080AG ST91350AG	ST9140AG ST91430AG ST9144A ST9145AG ST9150AG ST91685AG ST9190AG ST92255AG ST9235AG ST9240AG ST9295AG ST9300AG	ST9342A ST9352A ST9385AG ST9420AG ST9422A ST9550AG ST9546A ST9655AG ST9810AG ST9816AG ST9840AG


ESDI Drives List
ESDI drive list:

1xxx = 3.5", half-height (41 mm)

ST1111E

ST1156E

ST1201E

2xxx = 5.25", half-height (41 mm)

ST2106E

ST2182E

ST2383E

4xxx = 5.25", full-height (82 mm)

ST4182E

ST4383E

ST4384E

ST4442E

ST4766E

ST4767ES

ST4769ES


Fibre Channel Drives List
Fibre Channel drive list:

1xxx = 3.5", half-height (41 mm)

ST15150FC

ST19101FC

ST19171FC

3xxx = 3.5", 1"/25mm height, 5.7"/146mm depth

ST32171FC

ST32271FC

ST34371FC

ST34501FC

ST34571FC


IPI Drives List
IPI drive list:

4xxx = 5.25", full-height (82 mm)

ST41201K

ST41800K

ST43200K

6xxx = 9-inch

ST6515K

8xxx = 8-inch

ST8100K ST81154K ST81236K ST8134K ST8135K ST8167K ST8201K	ST82030K ST82105K ST82368K ST82500K ST8268K ST83050K ST83220K	ST833K ST8335K ST8402K ST867K ST868K ST8851K


MFM Drives List
MFM drive list:

1xxx = 3.5", half-height (41 mm)

ST1100

ST124

ST125

ST138

ST151

2xxx = 5.25", half-height (41 mm)

ST212

ST213

ST225

ST251

ST252

ST253

4xxx = 5.25", full-height (82 mm)

ST4026

ST4038

ST4038M

ST4051

ST4053

ST406

ST4085

ST4086

ST4096

ST4097

ST412

ST419

ST506


PCMCIA Drives List
PCMCIA drive list:

7xxx = 1.8"

ST71P

ST71P5

ST72P

ST72P5

ST75P

ST75P5

ST710P

ST710P5

ST720P

ST720P5

ST7050P


RLL Drives List
RLL drive list:

1xxx = 3.5", half-height (41 mm)

ST1106R

ST1150R

ST138R

ST157R

2xxx = 5.25", half-height (41 mm)

ST225R

ST238

ST238R

ST250R

ST277R

ST278R

ST279R

4xxx = 5.25", full-height (82 mm)

ST4135R

ST4144R


SCSI Drives List
SCSI drive list:

1xxx = 3.5", half-height (41 mm)

ST1090N ST1096N ST1111N ST11200N ST11201N ST1126N ST1133NS ST1156N ST1162N ST1186NS ST11900N ST11900W ST11950N ST11950W	ST1201N ST1239NS ST12400N ST12400W ST12450W ST125N ST12550N ST12550W ST138N ST1400N ST1401N ST14207N ST14207W ST14209N	ST14209W ST1480N ST1481N ST15150N ST15150W ST15230N ST15230W ST157N ST1581N ST177N ST1830N ST19171N ST19171W ST1950N ST1980N

2xxx = 5.25", half-height (41 mm)

ST2106N

ST2125N

ST2209N

ST225N

ST2383N

ST2502N

ST251N

ST277N

ST296N

3xxx = 3.5", 1"/25mm height, 5.7"/146mm depth

ST31051N ST31051W ST31055N ST31055W ST31060N ST31060W ST31080N ST31200N ST31200W ST31230N ST31230W ST31231N ST31250N ST31250W	ST31930N ST32105N ST32105W ST32107N ST32107W ST32151N ST32151W ST32155N ST32155W ST32171N ST32171W ST32430N ST32430W ST325N	ST32550N ST32550W ST3283N ST3285N ST3390N ST34371N ST34371W ST3500N ST3550N ST3600N ST3610N ST3620N ST3620W ST3655N

4xxx = 5.25", full-height (82 mm)

ST410800N ST410800W ST41200N ST41520N ST41600N ST41601N ST41650N ST41651N ST4182N	ST42000N ST42100N ST423451N ST423451W ST42400N ST43400N ST43401N ST43402ND	ST4350N ST4376N ST4385N ST4702N ST4766N ST4767N

5xxx = 3.5", 1"/25mm height, 5"/127mm depth

ST51080N

ST52160N

ST52160WC

ST5660N

9xxx = 2.5", .75"/19mm or .49"/12.5mm height

ST9235NG

ST9252N

ST9295N


SMD Drives List
SMD drive list:

4xxx = 5.25", full-height (82 mm)

ST41097J

ST41201J

6xxx = 9-inch

ST6165J

ST6315J

ST6344J

ST6515J

ST683J

8xxx = 8-inch

ST81123J

ST81236J

ST82030J

ST82038J

ST82272J

ST82500J

ST83073J

ST8368J

ST8500J

ST8741J

ST8851J


Drives by Family
Drives by Family...

In addition to the drive families listed above, there are also the Sabre, Wren and Swift families.  All drive families can be searched as a group using the "Search" toolbar icon.


EliteFamily List
Elite Family

Elite 1 ST41600N ST41601N Elite 2 ST42000N ST42400N Elite 3 ST43400N ST43401N ST43402ND	Elite 9 ST410800N ST410800W Elite 23 ST423451N ST423451W


Barracuda Family List
Barracuda Family

Barracuda 1 ST11950N ST11950W Barracuda 2 ST12450W ST12550N ST12550W Barracuda 2LP ST31250N ST31250W ST32550N ST32550W Barracuda 4 ST15150FC ST15150N ST15150W	Barracuda 4LP ST32171FC ST32171N ST32171W ST32271FC ST32271N ST32271W ST34371FC ST34371N ST34371W ST34571FC ST34571N ST34571W Barracuda 9 ST19171FC ST19171N ST19171W


Decathlon Family List
Decathlon Family

Decathlon 540	(ST5540A)

Decathlon 545	(ST5660A)

Decathlon 545	(ST5660N)

Decathlon 850	(ST5850A)

Decathlon 1080	(ST51080A)


Hawk Family List
Hawk Family

Hawk 1 ST11200N ST11201N ST1830N ST1950N ST1980N Hawk 1LP ST31200N ST31200W ST3620N ST3620W Hawk 2 ST11900N ST11900W ST12400N ST12400W	Hawk 2LP ST31230N ST31230W ST31231N ST31930N ST32430N ST32430W Hawk 2XL ST31051N ST31051W ST31055N ST31055W ST32151N ST32151W ST32155N ST32155W Hawk 4 ST15230N ST15230W


Marathon Family List
Marathon Family

Marathon 130sl (ST9150AG) Marathon 170sl (ST9190AG) Marathon 210sl (ST9240AG) Marathon 260sl (ST9300AG) Marathon 340 (ST9385AG) Marathon 420sl (ST9420AG) Marathon 455 (ST9550AG) Marathon 520 (ST9655AG) Marathon 541 (ST9546A)	Marathon 810sl (ST9810AG) Marathon 810 (ST9816AG) Marathon 840sl (ST9840AG) Marathon 1080sl (ST91080AG) Marathon 1350sl (ST91350AG) Marathon 1430sl (ST91430AG) Marathon 1680 (ST91685AG) Marathon 2250 (ST92255AG)


Medalist Family List
Medalist Family

Medalist 210xe (ST3250A) Medalist 270xe (ST3291A) Medalist 270xe (ST3295A) Medalist 340xe (ST3391A) Medalist 425xe (ST3491A) Medalist 455 (ST3550A) Medalist 540 (ST3655A) Medalist 540sl (ST5540A) Medalist 545xe (ST3660A) Medalist 630xe (ST3630A) Medalist 636 (ST3636A) Medalist 720 (ST3780A) Medalist 850 (ST3852A) Medalist 850sl (ST5851A) Medalist 850xe (ST3850A) Medalist 1080 (ST31220A)	Medalist 1080sl (ST51080A) Medalist 1080sl (ST51080N) Medalist 1082 (ST31082A) Medalist 1270 (ST31270A) Medalist 1270sl (ST51270A) Medalist 1276 (ST31276A) Medalist 1640 (ST31640A) Medalist 1720 (ST31720A) Medalist 2132 (ST32132A) Medalist 2140 (ST32140A) Medalist Pro 2160 (ST52160A) Medalist Pro 2160N (ST52160N) Medalist Pro 2160W(ST52160WC) Medalist Pro 2520 (ST52520A) Medalist 2531 (ST32531A) Medalist 3240 (ST33240A) Medalist 4340 (ST34340A)


Cabo Family List
Cabo Family

CABO

Cabo 541	(ST3541A)

Cabo 635	(ST3635A)

Cabo 851	(ST3851A)

Cabo 1060	(ST31060A)

Cabo 1081	(ST31081A)

Cabo 1275	(ST31275A)

Cabo 1621	(ST31621A)


Cheetah Family List
Cheetah Family

Cheetah 4LP

ST34501FC

ST34501N

ST34501W

Cheetah 9

ST19101FC

ST19101N

ST19101W


ATA

AT Attachment (also known as IDE - Integrated Drive Electronics)


ESDI

Enhanced Small Device Interface.


IPI

Intelligent Peripheral Interface


MFM

An original ST412 Interface (which includes the RLL variety) and stands for Modified Frequency Modulation.


PCMCIA

Personal Computer Memory Card Industry Association


RLL

An original ST412 Interface (which includes the MFM variety) and stands for Run Length Limited.


SMD

Storage Module Drive


SCSI

Small Computer Systems Interface. Developed after the SASI interface (Shugart Associates System Interface 1981).


Fibre Channel

FC-AL  Fibre Channel Arbitrated Loop Interface


What's New Top
 	Seagate Technology Desk Reference Revision History

This file will be maintained starting April 1992.

   What's new in this edition of the Seagate Desk Reference

                 1995 Changes

                 1994 Changes

                 1993 Changes

                 1992 Changes

1996 Changes

12/18/96	Added Alternate Capacity jumper to ST32531A and ST33240A.

Corrected ST31274A and ST3853A buffer size and acoustic info.

12/16/96	Added ST91430AG and ST91080AG.  Corrected miscellaneous

Marathon family specs for drives >800MB. (ST9840AG to

ST92255AG).  Updated corporate phone numbers.  Added new

words to Glossary.

12/11/96	Added Fibre Channel Interface section.  Added Cheetah Family

section.  Added the ST32171FC, ST32271N/W/FC, ST34371FC,

ST34501N/W/FC, ST34571N/W/FC, ST15150FC, ST19101N/W/FC.

Removed the ST18771N and ST18771W.

12/09/96	Added ST52160N, ST52160WC, ST32531A, ST33240A and

ST34340A.  Removed the ST32530A,  ST33440A and

ST34250A.  Updated the ST31720A.

10/03/96	Updated Conner / Seagate model numbers conversion

table.

09/16/96	Added the ST19171FC and Fibre Channel SCA to pins and

cables section.  Corrections to Barracuda 4LP family specs,

Barracuda 9 family and ST43400N T-Res info.  Added ST31060A.

Updated Elite 23 family specs.  Fixed T-Res info on all

Barracuda half height drives.

09/11/96	Added the ST14209N, ST14209W, ST31720A, ST3852A,

ST32132A, ST31082A and ST9810AG.

09/09/96	Added the ST52160A and ST52520A.   Added drawing for 80 to

50 pin adapter shipped with Barbados family SCSI drives.  Added

3-pin power plug option to ST31274A, ST3853A, ST3544A and

ST3543A.  Added Term Power Fuse to Cayman ST14207N/W.

Corrected ST32105N and ST32107N LED driver jumper.

Documented default settings for Medalist SL family drives.

09/06/96	Updated corporate phone numbers.  Corrected many spelling errors

in the Glossary section.  Fixed broken link to ST4384E.  Corrected

ST31276A family name.  Incorporated Medalist Pro family name.

Fixed ATA jumper on CFSxxxxA Filepro and Cabo drives greater

than 528MB.

05/20/96	Corrected Hawk 2XL single track access times.  Many small misc

corrections to older historical Conner Peripherals models.

05/07/96	Added BTUs and power dissipation to Barracuda specs where

available.

04/10/96	Added ST32161A (CFA2161A).  Misc corrections to old Conner specs.

03/22/96	Added Drive Anatomy section. Added Seagate Software Companies.

Added Conner phone numbers.  Updated Hawk 2XL and Barracuda 4LP

models.

03/14/96	Added Sectors per Track to former Conner SCSI drives converted

to Seagate model #'s.  Removed 12V reference on several  2.5" drives.

Added ST31276A, ST3636A, ST3850A, ST32530A, ST33440A,

ST34250A, ST9840AG, ST91350AG, ST91685AG, ST92255AG,

ST423451N, ST423451W.

03/11/96	Added SCSI Wide and SCSI Wide Single Connector Attachment (SCA)

to Cables and Pins section.  Added links to model conversion charts.

03/05/96	Added Old Conner Peripherals drive models not converted to new Seagate

model numbers

02/20/96	Added former Conner Peripherals models which have been assigned

an equivalent Seagate STxxxx model number designation.  Corrected

option jumpers on ST31640A and ST32140A.  Added

Conner to Seagate conversion lists.  Added Conner model number

interpretation.

02/07/96	Updated all Hawk 2XL family drives.

01/09/96	Corrected ST51080N default settings.

01/03/96	Added ST19171N, ST19171W, ST31231N, ST31055N, ST31055W,

ST32155N, ST32155W. Corrected Elite 2 T-Res descriptions.

Added ST31220A LBA translation, Removed Barracuda 8.

Corrected Barracuda 2 bytes per track. Corrected J2

connector number on Medalist SL drives. Corrected Synch

Spindle ref on Barracuda 2LP.

1995 Changes

11/08/95	Modified Glossary section

11/02/95	Added WC configuration to Barracuda 4, ST15150WC

Added ST31240A, ST31640A, ST51270A, ST9816A,

ST32171N, ST32171W, ST34371N, ST34371W, ST18771N,

ST18771W, ST31051N, ST31051W, ST32151N, ST32151W,

ST3630A, ST51080N. Corrected Term Power detail for Barracuda

2LP Wide Differential models. Added Remote LED polarity

info on ST5660N.

10/12/95	Corrected Elite 9 differential models to show

T-Res info.

10/05/95	Updated ST5540A and ST51080A to show

abnormal shock spec and cache buffer size

(Medalist sl family drives formerly known as

Decathlon family)  Added ST31270A and ST5851A.

 8/10/95	Corrected the Enable T-Res jumper on the ST31230W

ST32430W.

 6/24/95	Added Cable Select info to ST9140AG and ST9190AG.

Corrected J2 options jumpers on ST15230W. Added

Micro House phones. Added new SCSI ID order for

ST3610N.

05/14/95	Added Type A and B board configurations to

ST5850A, ST3780A and ST31220A.  Updated to include the

PDIAG Slave jumper option.  Added ST5540A and

ST51080A.

04/25/95	Fixed a spelling problem on Medalist family slave

present jumpers.

04/05/95	Cleaned up ST5660N term power description and

corrected BPI value. Corrected ST3610N ID#

order.

02/01/95	Added shock specs to Hawk family drives

01/27/95	Corrected default term power reference asterisk

on 1" Barracuda Differential models

01/24/95	Added ST5850A and ST9420AG. Corrected Term Power

from SCSI bus setting on Hawk family drives. Fixed

spelling error on Barracuda family wide models.

Corrected ST12450W J4 option block to show 8 pairs.

1994 Changes

12/09/94	Updated Hawk and Barracuda families to show ASA level.

12/06/94	Updated ST3500N average sector per track value.

10/24/94	Updated ST31230W, ST32430W, ST31200W and ST410800N/W

 	Added ST3620W.

10/20/94	Corrected ST15230N avg SPT.

10/10/94	Added Marathon name to ST9385AG, ST9550AG, ST9655AG

08/31/94	Corrected ST5660A specs. Corrected ST15150N to

  	not show removable terminators (uses TE jumper).

 08/26/94	Added ST31230N and ST32430N. Updated ST12400W and

ST15150N.

 08/17/94	Added ST3240A, ST3295A and ST3660A. Updated missing

info on ST9385A, ST9550A, ST9655A, ST3780A and ST31220A.

 08/09/94	Added Medalist, Decathlon and Marathon names to

appropriate models.  Added ST31220A and ST3780A

models.

 08/08/94	Corrected External Transfer Rate for ST410800W.

Added Force 1024 Cyls jumper to ST5660A. Added

External Transfer Rates to Hawk and Barracuda

drives. Corrected SPT avg for Barracuda 4 drives.

 08/01/94	Updated wide Barracuda models to show J4

jumper MAY have 7 pairs.

 05/31/94	Added Parity Enable to ST43401N.  Updated

ST5660N specs and jumpers.

 05/10/94	Corrected ST740A width.  Corrected Barracuda

Family Depth (mm).  Updated ST3390N average

Sector per Track value.  Clarified ST3x91A

Family jumper drawing.

 05/02/94	Corrected access times on ST3x91 family drives.

 04/28/94	Added ST9385AG, ST9150AG, ST9240AG, ST9300AG,

ST9655AG, ST15230N, ST15230W

 04/14/94	Corrected Height measurement on several 9xxxA

models.

 03/24/94	Corrected the ST410800N and W info.

 03/14/94	Corrected ST31200N family drives Parity Enable

jumper reference (said Disable, sorry). Also

clarified the same jumper on ST3610N family.

 02/27/94	Added ST3250A, ST3291A, ST3391A and ST3491A.

Updated ST7050P. Pulled ST11201N and ST42101N

which were never mfg'd.

 02/15/94	Corrected pwa reference on Terminator Power view

for Hawk family drives.

 02/11/94	Corrected specs that said "straight arm" actuator

to "rotary voice coil".

 01/17/94	Reordered the J2 numbering on the ST11200 family

to match the Installation Guides.

1993 Changes

12/17/93	 Updated Baracuda differential models to show

correct buffer size.

12/15/93	Added new products which where introduce at the

Fall '93 Comdex. 34 new models (whew <g>)

12/14/93	Minor change to Elite drive family concerning

termination power options on Differential models.

11/12/93	Corrected Quartdeck phone numbers.

Reworked the Old to New Imprimis/Seagate model

numbers chart

11/09/93	Corrected ST7050P specs. Added mating cable connector

info to ST31200N

11/08/93	Added Cable Select jumper info to ST3655A, ST3550A

and ST3390A

11/04/93	Corrected number of cylinders on ST3655N to

conform to mode select page 3 sector/track

value.

10/12/93	Added jumper drawings to ST11950W and ST12550W.

Removed T-res object from ST11900N and ST12400N

jumper drawings since these models use a T-RES

enable/disable jumper.

Corrected avg sector per track on ST11900N.

Added ST11900NC drawing to show new 80 pin I/O

connector.

Corrected ST11200N family access times to not include

controller overhead.

Added ST1950N and ST11830N (ST11200N family drives).

10/11/93	Changed model numbers:ST11951N ->ST11950W,

ST12551N ->ST12550W (new SCSI-wide designations will

use W instead of ..1N). Also fixed average sectors

per track on Baracuda drives.

Corrected Delayed Motor Start time on ST11200 family.

10/05/93	Updates specs on ST31200N. Added note to Baracuda models

about differential termination.

09/15/93	Corrected avg sectors per track on ST3390N

09/12/93	Corrected T-res info on ST4182N

08/17/93	Corrected NEC Technologies phone numbers

08/17/93	Update specs and jumper setting for ST9235N.

08/12/93	Removed ST11700N, ST11701N, ST11750N, ST11751N and

replaced with updated versions ST11900N, ST11901N,

ST11950N and ST11951N.

08/11/93	Removed ST9295N (never produced).

07/27/93	Corrected "default" terminator power designations on

ST3283N, ST3390N and ST3550N.

06/24/93	Correct SCSI pins 35,36,46 in PIN-CABL.HTX

06/23/93	Corrected Quarterdeck area codes, Storage Dimensions

new phone number

06/22/93	Corrected ST9100AG power specs.

Added ST3195A, ST9140AG, ST9190AG.

05/18/93	Corrected Ultrastor tech support area code

05/14/93	Added ST3390N.

05/13/93	Corrected ST1480N family t-res power from bus jumper.

05/12/93	Corrected ST9100AG total sectors and changed default

translation geometry. Corrected ST3243A mtbf and power

specs.

Added ST9145AG, ST3123A, ST3145A, ST3290A, ST3390A,

ST3655A.

03/10/93 	Clarified front-to-back orientation of configuration

jumper block on ST3600A.

Corrected ST3243A board layout.

Corrected ST41601N external transfer rate.

03/09/93	Updated DTC Tech Support BBS number.

02/09/93	Corrected ST3600A Master with Slave Present jumper

02/02/93	Added reference to old/new style SCSI ID jumper

block on ST3600, ST3610 and ST11200 families.

Correct cylinder and head specs on ST43400 Elite 3

family. Pulled drawing in ST43402 and ST11201 (should

show 68-pin wide scsi connector).

01/29/93	Added new PWA layout for ST3600A Family

1992 Changes

12/18/92	Added all the NEW drives announced at COMDEX '92.

12/08/92	Updated ST3283N to show notch in I/O connector

plastic shroud. Corrected MTBF and power specs.

Corrected ST1980N internal transfer rate.

12/07/92	Added shock spec to ST9144 family.

Updated left side view for ST3600N family to show

early PCB layout for SCSI ID header.

12/01/92	Corrected Motor Start and Start Delay designations

on ST3600N family.  They were described in reverse.

11/12/92	Corrected external transfer rate on ST41601N

11/11/92	Clarified location of configuration jumpers on ST2106E.

Noted perpendicular configuration header on ST412 members

of the ST157 family.

10/22/92	Added ST3600 family drives (ST3500 A & N, ST3600 A & N)

10/12/92	Corrected order of jumper numbers on ST11200 family

(incl ST1980N) J2 jumper block.  Descriptions were OK,

number wasn't. Also corrected ST11200N family data

buffer amount.

09/28/92	ST3283 power specs and max full seek updated. Added

pin-28 SPSYNC- info to front view of ST3283A.

09/08/92	Corrected perspective on ST3283 family front view.

08/05/92	Added 30 new numbers to the phone list.

07/16/92	Added T-res information to ST-2125N and ST-2209N (old

94221 family Wren 5)

07/13/92	Corrected description of Motor Start and Start Delay

jumpers on ST11200 family

Identified pin-1 of J5 on ST1480N family

06/11/92	Corrected 3-pin power assignments on ST3144 family.

Added ST-9052A.

06/08/92	Added "Print/Export" to the top of each deck. This

allows a complete card to be saved to a plain ASCII

file.  If PRN or LPT1 is given as the file name, then

it will print. This was active on previous releases

but omitted from the menu.  One note of caution... if

the data is being read from a server, then the user

will need rights to create and delete in that

subdirecory in order to make use of Print/Export.

06/05/92	Lots of new BBS numbers added to the phonelist section.

06/01/92	Added a "user link" which allows anyone who cares to

attach/expand their own technical info to the Desk

Reference.  The user file must be called USER.HTX and

must, of course, be prepared in accordance to

HYPERHELPER.  The USER.HTX file distributed from

Seagate is merely a dummy screen.

05/18/92	Added ST-42400N.

Correct spindle speeds on ST11200 family.

04/17/92	ST325N SCSI drive added.

UltraStor BBS added and their Tech Support # corrected.

ST01/02 SCSI host adapter v3.3 board layout added.

Added reminder to all decks to be sure to register

the HyperHelper program.

Beginning of the revision history.


ST-1057A

     ÍÍÍPWAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                          Ú....................¿    /ÄÄÄÄÄÄÄÄÄ\

                           ...................1     ³ O O O O ³

       1 o o 2  ÄÄÄÄÄÄÄÄ¿       À Cable Connector   ÀÄ5ÄGÄGÄ12Ù

       3 o o 4  ÄÄÄÄÄÄ¿ ³

       5 o o 6  ÄÄÄÄ¿ ³ ³

       7 o o 8  ÄÄ¿ ³ ³ ³

       9 o o 10 ¿ ³ ³ ³ ³

                ³ ³ ³ ³ ÀÄÄ Life-Test (Factory use)

                ³ ³ ³ ÀÄÄÄÄ Master *

                ³ ³ ÀÄÄÄÄÄÄ Slave Present (on Master only) *

                ³ ÀÄÄÄÄÄÄÄÄ Reserved

                ÀÄÄÄÄÄÄÄÄÄÄ Remote LED

                            * No jumpers if unit is Slave

                             ST-1057A

       UNFORMATTED CAPACITY (MB) ________________N/A

       FORMATTED CAPACITY (xx/17 SECTORS) (MB) __53.4

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________6,144

       CYLINDERS ___PHYSICAL/LOGICAL_____________NA/1,024

       HEADS _______PHYSICAL/LOGICAL_____________3/6

       DISCS ____________________________________2

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL ZBR

       TRANSFER RATE INTERNAL (mbits/sec) _______8.2/10/12

       SPINDLE SPEED (RPM) ______________________3,528

       INTERFACE ________________________________AT BUS

       TPI (TRACKS PER INCH) ____________________1,300

       BPI (BITS PER INCH) ______________________21,600

       AVERAGE ACCESS (ms) ______________________18

       SINGLE TRACK SEEK (ms) ___________________6

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.0

                           +12V TYPICAL (amps) __0.7

                           +5V START-UP (amps) __0.63

                           +5V TYPICAL (amps) ___0.4

                           TYPICAL (watts) ______8

                           MAXIMUM (watts) ______

       BUFFERED STEP PULSE RATE (micro sec) _____

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________*

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE.

Translation to use: 1024 cyl, 6 heads, 17 sectors = 53,477,376

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications.


ST-1090A
ST-1090A (94354-090) Swift AT (IDE)

     ÚÄÄÄ\

     ³ O ³  5

     ³ O ³  G                                          ÚÄ¿  Some have

     ³ O ³  G       AT (IDE) Cable                     ³ ÃÄ these pins

     ³ O ³ 12  1Ú........................¿   o o o o o(o o)   6 off

     ÀÄÄÄ/       ........................    o o o o o(o o)   7 off

    ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                             1 2 3 4 5 6 7

         ON                 OFF              ³ ³ ³ ³ ³ ÀÂÙ

    1   Slave              Master          ÄÄÙ ³ ³ ³ ³  ³

    2   5 Heads            7/9 Heads       ÄÄÄÄÙ ³ ³ ³  ³

    3   Slave installed    Slave not inst. ÄÄÄÄÄÄÙ ³ ³  ³

    4   7 byte ECC         4 byte ECC      ÄÄÄÄÄÄÄÄÙ ³  ³

    5   Factory test       Normal Oper.    ÄÄÄÄÄÄÄÄÄÄÙ  ³

    6/7 Some PWA's have these pins, factory use  ÄÄÄÄÄÄÄÙ

                             ST-1090A

                         94354-90 Swift

       UNFORMATTED CAPACITY (MB) ________________90

       FORMATTED CAPACITY (29 SECTORS) (MB) _____79

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________5,360

       CYLINDERS ________________________________1,072

       HEADS ____________________________________5

       DISCS ____________________________________3

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL

       TRANSFER RATE (mbytes/sec) _______________1

       SPINDLE SPEED (RPM) ______________________3,600

       BUFFER ___________________________________32 or 64 Kbyte

         Read Look-Ahead, Non-Adaptive,

         Single-Segmented

       INTERFACE ________________________________AT BUS

       TPI (TRACKS PER INCH) ____________________1,350

       BPI (BITS PER INCH) ______________________22,638

       AVERAGE ACCESS (ms) ______________________15

       SINGLE TRACK SEEK (ms) ___________________4

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.5

                           +12V TYPICAL (amps) __0.7

                           +5V START-UP (amps) __0.75

                           +5V TYPICAL (amps) ___0.4

                           TYPICAL (watts) ______11

                           MAXIMUM (watts) ______33.75

       BUFFERED STEP PULSE RATE (micro sec) _____6-200

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________*

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:   536 cyl, 10 heads, 29 sectors = 79,585,280

Possible translation:   335 cyl, 16 heads, 29 sectors = 79,585,280

Possible translation:   653 cyl, 14 heads, 17 sectors = 79,571,968

Possible translation:   854 cyl,  7 heads, 26 sectors = 79,579,136

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

                          Swift Remote LED Option

               Front View of Drive Without the Plastic Bezel

                                  ÚÄÄÄÂÄÄÄ¿

                                  ³ A ³ B ³    B = Anode

                                  ÃÄÄÄÅÄÄÄ´    D = Cathode

                                  ³ C ³ D ³

              ...ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÏÍÍÍÏÍÍÍÍÍPÍWÍAÍÍÍ...

        ø Default jumper at C-D for LED mounted on drive PWA

        ø To use remote LED, remove jumper and extend B (Anode)

          and D (Cathode).

        ø Swift LED kit 75912397 allows connection to a remote LED

        ø Swift LED kit 95913369 has an LED for attachment to the

          system front bezel or a 5.25-inch frame kit

Seagate reserves the right to change, without notice, product

offerings or specifications.


ST-1102A
ST-1102A and ST-1102A-32

     ÍÍÍPWAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                          Ú....................¿    /ÄÄÄÄÄÄÄÄÄ\

                           ...................1     ³ O O O O ³

       1 o o 2  ÄÄÄÄÄÄÄÄ¿       À Cable Connector   ÀÄ5ÄGÄGÄ12Ù

       3 o o 4  ÄÄÄÄÄÄ¿ ³

       5 o o 6  ÄÄÄÄ¿ ³ ³

       7 o o 8  ÄÄ¿ ³ ³ ³

       9 o o 10 ¿ ³ ³ ³ ³                               1=closed 0=open

                ³ ³ ³ ³ ÀÄÄ Life-Test (Factory use)

                ³ ³ ³ ÀÄÄÄÄ Master on (Slave off) ÄÄÄÄ  1  1  0

                ³ ³ ÀÄÄÄÄÄÄ Slave Present ÄÄÄÄÄÄÄÄÄÄÄÄ  0  1  0

                ³ ÀÄÄÄÄÄÄÄÄ Reserved

                ÀÄÄÄÄÄÄÄÄÄÄ Remote LED                  S  M  S

                                                        i  a  l

                                                        n  s  a

                                                        g  t  v

                                                        l  e  e

                                                        e  r

                             ST-1102A

       UNFORMATTED CAPACITY (MB) ________________N/A

       FORMATTED CAPACITY (xx/17 SECTORS) (MB) __89.1

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________10,240

       CYLINDERS __PHYSICAL/LOGICAL______________NA/1,024

       HEADS ______PHYSICAL/LOGICAL______________5/10

       DISCS ____________________________________3

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (2,7)

       TRANSFER RATE INTERNAL (mbits/sec) _______8.2/10/12

       SPINDLE SPEED (RPM) ______________________3,528

       AVERAGE LATENCY (mSEC) ___________________8.5

       BUFFER ___________________________________8 or 32 Kbyte

         Read Look-Ahead, Non-Adaptive,

         Single-Segmented Buffer

       INTERFACE ________________________________AT BUS

       SECTORS PER DRIVE ________________________174,080

       TPI (TRACKS PER INCH) ____________________1,300

       BPI (BITS PER INCH) ______________________21,600

       AVERAGE ACCESS (ms) ______________________19

       SINGLE TRACK SEEK (ms) ___________________8

       MAX FULL SEEK (ms) _______________________40

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.0

                           +12V TYPICAL (amps) __0.7

                           +5V START-UP (amps) __0.63

                           +5V TYPICAL (amps) ___0.4

                           TYPICAL (watts) ______8

                           MAXIMUM (watts) ______

       BUFFERED STEP PULSE RATE (micro sec) _____

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________*

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE.

Translation to use: 1024 cyl, 10 heads, 17 sectors = 89,128,960

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications.


ST-1111A
ST-1111A (94354-111) Swift AT (IDE)

     ÚÄÄÄ\

     ³ O ³  5

     ³ O ³  G                                          ÚÄ¿  Some have

     ³ O ³  G       AT (IDE) Cable                     ³ ÃÄ these pins

     ³ O ³ 12  1Ú........................¿   o o o o o(o o)  6 off

     ÀÄÄÄ/       ........................    o o o o o(o o)  7 off

    ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                             1 2 3 4 5 6 7

         ON                 OFF              ³ ³ ³ ³ ³ ÀÂÙ

    1   Slave              Master          ÄÄÙ ³ ³ ³ ³  ³

    2   5 Heads            7/9 Heads       ÄÄÄÄÙ ³ ³ ³  ³

    3   Slave installed    Slave not inst. ÄÄÄÄÄÄÙ ³ ³  ³

    4   7 byte ECC         4 byte ECC      ÄÄÄÄÄÄÄÄÙ ³  ³

    5   Factory test       Normal Oper.    ÄÄÄÄÄÄÄÄÄÄÙ  ³

    6/7 Some PWA's have these pins, factory use  ÄÄÄÄÄÄÄÙ

                             ST-1111A

                          94354-111 Swift

       UNFORMATTED CAPACITY (MB) ________________111

       FORMATTED CAPACITY (36 SECTORS) (MB) _____98

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________5,360

       CYLINDERS ________________________________1,072

       HEADS ____________________________________5

       DISCS ____________________________________3

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL

       TRANSFER RATE (mbytes/sec) _______________1.25

       SPINDLE SPEED (RPM) ______________________3,600

       BUFFER ___________________________________32 or 64 Kbyte

         Read Look-Ahead, Non-Adaptive,

         Single-Segmented

       INTERFACE ________________________________AT BUS

       TPI (TRACKS PER INCH) ____________________1,350

       BPI (BITS PER INCH) ______________________28,103

       AVERAGE ACCESS (ms) ______________________15

       SINGLE TRACK SEEK (ms) ___________________4

       MTBF (power-on hours) ____________________70,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.5

                           +12V TYPICAL (amps) __0.7

                           +5V START-UP (amps) __0.75

                           +5V TYPICAL (amps) ___0.4

                           TYPICAL (watts) ______11

                           MAXIMUM (watts) ______33.75

       BUFFERED STEP PULSE RATE (micro sec) _____6-200

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________*

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:   536 cyl, 10 heads, 36 sectors = 98,795,520

Possible translation:   402 cyl, 10 heads, 48 sectors = 98,795,520

Possible translation:   873 cyl, 13 heads, 17 sectors = 98,781,696

Possible translation:   742 cyl, 10 heads, 26 sectors = 98,775,040

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

                          Swift Remote LED Option

               Front View of Drive Without the Plastic Bezel

                                  ÚÄÄÄÂÄÄÄ¿

                                  ³ A ³ B ³    B = Anode

                                  ÃÄÄÄÅÄÄÄ´    D = Cathode

                                  ³ C ³ D ³

              ...ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÏÍÍÍÏÍÍÍÍÍPÍWÍAÍÍÍ...

        ø Default jumper at C-D for LED mounted on drive PWA

        ø To use remote LED, remove jumper and extend B (Anode)

          and D (Cathode).

        ø Swift LED kit 75912397 allows connection to a remote LED

        ø Swift LED kit 95913369 has an LED for attachment to the

          system front bezel or a 5.25-inch frame kit

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-1126A
ST-1126A (94354-126) Swift AT (IDE)

     ÚÄÄÄ\

     ³ O ³  5

     ³ O ³  G                                          ÚÄ¿  Some have

     ³ O ³  G       AT (IDE) Cable                     ³ ÃÄ these pins

     ³ O ³ 12  1Ú........................¿   o o o o o(o o)  6 on

     ÀÄÄÄ/       ........................    o o o o o(o o)  7 off

    ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                             1 2 3 4 5 6 7

         ON                 OFF              ³ ³ ³ ³ ³ ÀÂÙ

    1   Slave              Master          ÄÄÙ ³ ³ ³ ³  ³

    2   5 Heads            7/9 Heads       ÄÄÄÄÙ ³ ³ ³  ³

    3   Slave installed    Slave not inst. ÄÄÄÄÄÄÙ ³ ³  ³

    4   7 byte ECC         4 byte ECC      ÄÄÄÄÄÄÄÄÙ ³  ³

    5   Factory test       Normal Oper.    ÄÄÄÄÄÄÄÄÄÄÙ  ³

    6/7 Some PWA's have these pins, factory use  ÄÄÄÄÄÄÄÙ

                             ST-1126A

                         94354-126 Swift

       UNFORMATTED CAPACITY (MB) ________________126

       FORMATTED CAPACITY (29 SECTORS) (MB) _____111

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________7,504

       CYLINDERS ________________________________1,072

       HEADS ____________________________________7

       DISCS ____________________________________4

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL

       TRANSFER RATE (mbytes/sec) _______________1

       SPINDLE SPEED (RPM) ______________________3,600

       BUFFER ___________________________________32 or 64 Kbyte

         Read Look-Ahead, Non-Adaptive,

         Single-Segmented

       INTERFACE ________________________________AT BUS

       TPI (TRACKS PER INCH) ____________________1,350

       BPI (BITS PER INCH) ______________________22,638

       AVERAGE ACCESS (ms) ______________________15

       SINGLE TRACK SEEK (ms) ___________________4

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.5

                           +12V TYPICAL (amps) __0.7

                           +5V START-UP (amps) __0.75

                           +5V TYPICAL (amps) ___0.4

                           TYPICAL (watts) ______11

                           MAXIMUM (watts) ______33.75

       BUFFERED STEP PULSE RATE (micro sec) _____6-200

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________*

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:    536 cyl, 14 heads, 29 sectors = 111,419,392

Possible translation:    469 cyl, 16 heads, 29 sectors = 111,419,392

Possible translation:    800 cyl, 16 heads, 17 sectors = 111,411,200

Possible translation:    523 cyl, 16 heads, 26 sectors = 111,394,816

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

                          Swift Remote LED Option

               Front View of Drive Without the Plastic Bezel

                                  ÚÄÄÄÂÄÄÄ¿

                                  ³ A ³ B ³    B = Anode

                                  ÃÄÄÄÅÄÄÄ´    D = Cathode

                                  ³ C ³ D ³

              ...ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÏÍÍÍÏÍÍÍÍÍPÍWÍAÍÍÍ...

        ø Default jumper at C-D for LED mounted on drive PWA

        ø To use remote LED, remove jumper and extend B (Anode)

          and D (Cathode).

        ø Swift LED kit 75912397 allows connection to a remote LED

        ø Swift LED kit 95913369 has an LED for attachment to the

          system front bezel or a 5.25-inch frame kit

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-1133A
ST-1133A (94354-133) Swift AT (IDE)

     ÚÄÄÄ\

     ³ O ³  5

     ³ O ³  G                                          ÚÄ¿  Some have

     ³ O ³  G      AT (IDE) Cable                      ³ ÃÄ these pins

     ³ O ³ 12  1Ú........................¿   o o o o o(o o)

     ÀÄÄÄ/       ........................    o o o o o(o o)

    ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                             1 2 3 4 5 6 7

         ON                 OFF              ³ ³ ³ ³ ³ ÀÂÙ

    1   Slave              Master          ÄÄÙ ³ ³ ³ ³  ³

    2   5 Heads            7/9 Heads       ÄÄÄÄÙ ³ ³ ³  ³

    3   Slave installed    Slave not inst. ÄÄÄÄÄÄÙ ³ ³  ³

    4   7 byte ECC         4 byte ECC      ÄÄÄÄÄÄÄÄÙ ³  ³

    5   Factory test       Normal Oper.    ÄÄÄÄÄÄÄÄÄÄÙ  ³

    6/7 Some PWA's have these pins, factory use  ÄÄÄÄÄÄÄÙ

                             ST-1133A

                          94354-133 Swift

       UNFORMATTED CAPACITY (MB) ________________133

       FORMATTED CAPACITY (36 SECTORS) (MB) _____117

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________6,360

       CYLINDERS ________________________________1,272

       HEADS ____________________________________5

       DISCS ____________________________________3

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL

       TRANSFER RATE (mbytes/sec) _______________1.25

       SPINDLE SPEED (RPM) ______________________3,600

       BUFFER ___________________________________32 or 64 Kbyte

         Read Look-Ahead, Non-Adaptive,

         Single-Segmented

       INTERFACE ________________________________AT BUS

       TPI (TRACKS PER INCH) ____________________1,350

       BPI (BITS PER INCH) ______________________28,103

       AVERAGE ACCESS (ms) ______________________15

       SINGLE TRACK SEEK (ms) ___________________4

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.5

                           +12V TYPICAL (amps) __0.7

                           +5V START-UP (amps) __0.75

                           +5V TYPICAL (amps) ___0.4

                           TYPICAL (watts) ______11

                           MAXIMUM (watts) ______33.75

       BUFFERED STEP PULSE RATE (micro sec) _____6-200

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________*

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:    636 cyl, 10 heads, 36 sectors = 117,227,520

Possible translation:    477 cyl,  8 heads, 60 sectors = 117,227,520

Possible translation:    962 cyl, 14 heads, 17 sectors = 117,225,472

Possible translation:    629 cyl, 14 heads, 26 sectors = 117,225,472

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

                          Swift Remote LED Option

               Front View of Drive Without the Plastic Bezel

                                  ÚÄÄÄÂÄÄÄ¿

                                  ³ A ³ B ³    B = Anode

                                  ÃÄÄÄÅÄÄÄ´    D = Cathode

                                  ³ C ³ D ³

              ...ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÏÍÍÍÏÍÍÍÍÍPÍWÍAÍÍÍ...

        ø Default jumper at C-D for LED mounted on drive PWA

        ø To use remote LED, remove jumper and extend B (Anode)

          and D (Cathode).

        ø Swift LED kit 75912397 allows connection to a remote LED

        ø Swift LED kit 95913369 has an LED for attachment to the

          system front bezel or a 5.25-inch frame kit

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-1144A
ST-1144A and ST-1144A-32

     ÍÍÍPWAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                          Ú....................¿    /ÄÄÄÄÄÄÄÄÄ\

                           ...................1     ³ O O O O ³

       1 o o 2  ÄÄÄÄÄÄÄÄ¿       À Cable Connector   ÀÄ5ÄGÄGÄ12Ù

       3 o o 4  ÄÄÄÄÄÄ¿ ³

       5 o o 6  ÄÄÄÄ¿ ³ ³

       7 o o 8  ÄÄ¿ ³ ³ ³

       9 o o 10 ¿ ³ ³ ³ ³                               1=closed 0=open

                ³ ³ ³ ³ ÀÄÄ Life-Test (Factory use)

                ³ ³ ³ ÀÄÄÄÄ Master on (Slave off) ÄÄÄÄ  1  1  0

                ³ ³ ÀÄÄÄÄÄÄ Slave Present ÄÄÄÄÄÄÄÄÄÄÄÄ  0  1  0

                ³ ÀÄÄÄÄÄÄÄÄ Reserved

                ÀÄÄÄÄÄÄÄÄÄÄ Remote LED                  S  M  S

                                                        i  a  l

                                                        n  s  a

                                                        g  t  v

                                                        l  e  e

                                                        e  r

                            ST-1144A

       UNFORMATTED CAPACITY (MB) ________________N/A

       FORMATTED CAPACITY (xx/17 SECTORS) (MB) __130.7

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________14,336

       CYLINDERS __PHYSICAL/LOGICAL______________NA/1,001

       HEADS ______PHYSICAL/LOGICAL______________7/15

       DISCS ____________________________________4

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (2,7)

       TRANSFER RATE INTERNAL (mbits/sec) _______8.2/10/12

       SPINDLE SPEED (RPM) ______________________3,528

       AVERAGE LATENCY (mSEC) ___________________8.5

       BUFFER ___________________________________8 or 32 Kbyte

         Read Look-Ahead, Non-Adaptive,

         Single-Segmented Buffer

       INTERFACE ________________________________AT BUS

       SECTORS PER DRIVE ________________________255,255

       TPI (TRACKS PER INCH) ____________________1,300

       BPI (BITS PER INCH) ______________________21,600

       AVERAGE ACCESS (ms) ______________________19

       SINGLE TRACK SEEK (ms) ___________________8

       MAX FULL SEEK (ms) _______________________40

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.0

                           +12V TYPICAL (amps) __0.7

                           +5V START-UP (amps) __0.63

                           +5V TYPICAL (amps) ___0.4

                           TYPICAL (watts) ______8

                           MAXIMUM (watts) ______

       BUFFERED STEP PULSE RATE (micro sec) _____

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________*

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:  1001 cyl, 15 heads, 17 sectors = 130,690,560

Possible translation:  1024 cyl, 14 heads, 17 sectors = 124,780,544

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications.


ST-1156A
ST-1156A (94354-155) Swift AT (IDE)

     ÚÄÄÄ\

     ³ O ³  5

     ³ O ³  G                                          ÚÄ¿  Some have

     ³ O ³  G       AT (IDE) Cable                     ³ ÃÄ these pins

     ³ O ³ 12  1Ú........................¿   o o o o o(o o)  6 on

     ÀÄÄÄ/       ........................    o o o o o(o o)  7 off

    ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                             1 2 3 4 5 6 7

         ON                 OFF              ³ ³ ³ ³ ³ ÀÂÙ

    1   Slave              Master          ÄÄÙ ³ ³ ³ ³  ³

    2   5 Heads            7/9 Heads       ÄÄÄÄÙ ³ ³ ³  ³

    3   Slave installed    Slave not inst. ÄÄÄÄÄÄÙ ³ ³  ³

    4   7 byte ECC         4 byte ECC      ÄÄÄÄÄÄÄÄÙ ³  ³

    5   Factory test       Normal Oper.    ÄÄÄÄÄÄÄÄÄÄÙ  ³

    6/7 Some PWA's have these pins, factory use  ÄÄÄÄÄÄÄÙ

                             ST-1156A

                          94354-155 Swift

       UNFORMATTED CAPACITY (MB) ________________155

       FORMATTED CAPACITY (36 SECTORS) (MB) _____138

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________7,504

       CYLINDERS ________________________________1,072

       HEADS ____________________________________7

       DISCS ____________________________________4

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL

       TRANSFER RATE (mbytes/sec) _______________1.25

       SPINDLE SPEED (RPM) ______________________3,600

       BUFFER ___________________________________32 or 64 Kbyte

         Read Look-Ahead, Non-Adaptive,

         Single-Segmented

       INTERFACE ________________________________AT BUS

       TPI (TRACKS PER INCH) ____________________1,350

       BPI (BITS PER INCH) ______________________28,103

       AVERAGE ACCESS (ms) ______________________15

       SINGLE TRACK SEEK (ms) ___________________4

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.5

                           +12V TYPICAL (amps) __0.7

                           +5V START-UP (amps) __0.75

                           +5V TYPICAL (amps) ___0.4

                           TYPICAL (watts) ______11

                           MAXIMUM (watts) ______33.75

       BUFFERED STEP PULSE RATE (micro sec) _____6-200

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________*

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:    536 cyl, 14 heads, 36 sectors = 138,313,728

Possible translation:    536 cyl,  9 heads, 56 sectors = 138,313,728

Possible translation:    993 cyl, 16 heads, 17 sectors = 138,289,152

Possible translation:    742 cyl, 14 heads, 26 sectors = 138,285,056

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

                          Swift Remote LED Option

               Front View of Drive Without the Plastic Bezel

                                  ÚÄÄÄÂÄÄÄ¿

                                  ³ A ³ B ³    B = Anode

                                  ÃÄÄÄÅÄÄÄ´    D = Cathode

                                  ³ C ³ D ³

              ...ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÏÍÍÍÏÍÍÍÍÍPÍWÍAÍÍÍ...

        ø Default jumper at C-D for LED mounted on drive PWA

        ø To use remote LED, remove jumper and extend B (Anode)

          and D (Cathode).

        ø Swift LED kit 75912397 allows connection to a remote LED

        ø Swift LED kit 95913369 has an LED for attachment to the

          system front bezel or a 5.25-inch frame kit

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-1162A
ST-1162A (94354-160) Swift AT (IDE)

     ÚÄÄÄ\

     ³ O ³  5

     ³ O ³  G                                          ÚÄ¿  Some have

     ³ O ³  G       AT (IDE) Cable                     ³ ÃÄ these pins

     ³ O ³ 12  1Ú........................¿   o o o o o(o o)  6 off

     ÀÄÄÄ/       ........................    o o o o o(o o)  7 off

    ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                             1 2 3 4 5 6 7

         ON                 OFF              ³ ³ ³ ³ ³ ÀÂÙ

    1   Slave              Master          ÄÄÙ ³ ³ ³ ³  ³

    2   5 Heads            7/9 Heads       ÄÄÄÄÙ ³ ³ ³  ³

    3   Slave installed    Slave not inst. ÄÄÄÄÄÄÙ ³ ³  ³

    4   7 byte ECC         4 byte ECC      ÄÄÄÄÄÄÄÄÙ ³  ³

    5   Factory test       Normal Oper.    ÄÄÄÄÄÄÄÄÄÄÙ  ³

    6/7 Some PWA's have these pins, factory use  ÄÄÄÄÄÄÄÙ

                             ST-1162A

                          94354-160 Swift

       UNFORMATTED CAPACITY (MB) ________________162

       FORMATTED CAPACITY (29 SECTORS) (MB) _____143

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________9,648

       CYLINDERS ________________________________1,072

       HEADS ____________________________________9

       DISCS ____________________________________5

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL

       TRANSFER RATE (mbytes/sec) _______________1

       SPINDLE SPEED (RPM) ______________________3,600

       BUFFER ___________________________________32 or 64 Kbyte

         Read Look-Ahead, Non-Adaptive,

         Single-Segmented

       INTERFACE ________________________________AT BUS

       TPI (TRACKS PER INCH) ____________________1,350

       BPI (BITS PER INCH) ______________________22,638

       AVERAGE ACCESS (ms) ______________________15

       SINGLE TRACK SEEK (ms) ___________________4

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.5

                           +12V TYPICAL (amps) __0.7

                           +5V START-UP (amps) __0.75

                           +5V TYPICAL (amps) ___0.4

                           TYPICAL (watts) ______11

                           MAXIMUM (watts) ______33.75

       BUFFERED STEP PULSE RATE (micro sec) _____6-200

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________*

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE.

Possible translation:  804 cyl, 12 heads, 29 sectors = 143,253,504

Possible Translation:  603 cyl, 16 heads, 29 sectors = 143,253,504

Possible Translation: 1024 cyl, 16 heads, 17 sectors = 142,606,336

Possible Translation:  978 cyl, 11 heads, 26 sectors = 143,210,496

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

                          Swift Remote LED Option

               Front View of Drive Without the Plastic Bezel

                                  ÚÄÄÄÂÄÄÄ¿

                                  ³ A ³ B ³    B = Anode

                                  ÃÄÄÄÅÄÄÄ´    D = Cathode

                                  ³ C ³ D ³

              ...ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÏÍÍÍÏÍÍÍÍÍPÍWÍAÍÍÍ...

        ø Default jumper at C-D for LED mounted on drive PWA

        ø To use remote LED, remove jumper and extend B (Anode)

          and D (Cathode).

        ø Swift LED kit 75912397 allows connection to a remote LED

        ø Swift LED kit 95913369 has an LED for attachment to the

          system front bezel or a 5.25-inch frame kit

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-1186A
ST-1186A (94354-186) Swift AT (IDE)

     ÚÄÄÄ\

     ³ 0 ³  5

     ³ 0 ³  G                                          ÚÄ¿  Some have

     ³ 0 ³  G       AT (IDE) Cable                     ³ ÃÄ these pins

     ³ 0 ³ 12  1Ú........................¿   o o o o o(o o)

     ÀÄÄÄ/       ........................    o o o o o(o o)

    ÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                             1 2 3 4 5 6 7

         ON                 OFF              ³ ³ ³ ³ ³ ÀÂÙ

    1   Slave              Master          ÄÄÙ ³ ³ ³ ³  ³

    2   5 Heads            7/9 Heads       ÄÄÄÄÙ ³ ³ ³  ³

    3   Slave installed    Slave not inst. ÄÄÄÄÄÄÙ ³ ³  ³

    4   7 byte ECC         4 byte ECC      ÄÄÄÄÄÄÄÄÙ ³  ³

    5   Factory test       Normal Oper.    ÄÄÄÄÄÄÄÄÄÄÙ  ³

    6/7 Some PWA's have these pins, factory use  ÄÄÄÄÄÄÄÙ

SWIFT Shrouded AT Interface Connector Only

     ÚÄÄÄ\

     ³ 0 ³  5   ÚÄ If the AT Connector has a plastic shroud, note pin-1

     ³ 0 ³  G   ³        Ú Pin-20 missing for keying purposes

     ³ 0 ³  G   ³        ³

     ³ 0 ³ 12  ÕÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍ¸     o o o . o o

     ÀÄÄÄ/     ³:::::::::ù:::::::::1³     o o o . o o    (Note: 8-pin jumper

     ÍÍÍÍPÍWÍAÍÏÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ    block on side of

                                          1 2 3 4 5 6     drive for factory

      ON                 OFF              ³ ³ ³ ³ ³ ³     use only.)

 1   Slave              Master          ÄÄÙ ³ ³ ³ ³ ³

 2   Slave installed    Slave not inst. ÄÄÄÄÙ ³ ³ ³ ³

 3   SPSYNC (spindle sync) on Pin-28 ÄÄÄÄÄÄÄÄÄÙ ³ ³ ³

 4   (pins removed) ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ ³ ³

 5   Spare ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ ³

 6   SPSYNC External Connection ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

                             ST-1186A

                         94354-186 Swift

       UNFORMATTED CAPACITY (MB) ________________186

       FORMATTED CAPACITY (36 SECTORS) (MB) _____164

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________8,904

       CYLINDERS ________________________________1,272

       HEADS ____________________________________7

       DISCS ____________________________________4

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       TRANSFER RATE (mbytes/sec) _______________1.25

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________32 or 64 Kbyte

         Read Look-Ahead, Non-Adaptive,

         Single-Segmented

       INTERFACE ________________________________AT BUS

       SECTORS PER DRIVE ________________________320,040

       TPI (TRACKS PER INCH) ____________________1,350

       BPI (BITS PER INCH) ______________________28,103

       AVERAGE ACCESS (ms) ______________________15

       SINGLE TRACK SEEK (ms) ___________________4

       MAX FULL SEEK (ms) _______________________35

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.5

                           +12V TYPICAL (amps) __0.7

                           +5V START-UP (amps) __0.75

                           +5V TYPICAL (amps) ___0.4

                           TYPICAL (watts) ______11

                           MAXIMUM (watts) ______33.75

       BUFFERED STEP PULSE RATE (micro sec) _____6-200

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________*

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:   636 cyl, 14 heads, 36 sectors = 164,118,528

Possible translation:   742 cyl, 12 heads, 36 sectors = 164,118,528

Possible translation:   636 cyl,  9 heads, 56 sectors = 164,118,528

Possible translation:   880 cyl, 14 heads, 26 sectors = 164,003,840

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

                          Swift Remote LED Option

               Front View of Drive Without the Plastic Bezel

                                  ÚÄÄÄÂÄÄÄ¿

                                  ³ A ³ B ³    B = Anode

                                  ÃÄÄÄÅÄÄÄ´    D = Cathode

                                  ³ C ³ D ³

              ...ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÏÍÍÍÏÍÍÍÍÍPÍWÍAÍÍÍ...

        ø Default jumper at C-D for LED mounted on drive PWA

        ø To use remote LED, remove jumper and extend B (Anode)

          and D (Cathode).

        ø Swift LED kit 75912397 allows connection to a remote LED

        ø Swift LED kit 95913369 has an LED for attachment to the

          system front bezel or a 5.25-inch frame kit

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-1201A
ST-1201A (94354-200) Swift AT (IDE)

     ÚÄÄÄ\

     ³ 0 ³  5

     ³ 0 ³  G                                          ÚÄ¿  Some have

     ³ 0 ³  G       AT (IDE) Cable                     ³ ÃÄ these pins

     ³ 0 ³ 12  1Ú........................¿   o o o o o(o o)  6 off

     ÀÄÄÄ/       ........................    o o o o o(o o)  7 off

    ÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                             1 2 3 4 5 6 7

         ON                 OFF              ³ ³ ³ ³ ³ ÀÂÙ

    1   Slave              Master          ÄÄÙ ³ ³ ³ ³  ³

    2   5 Heads            7/9 Heads       ÄÄÄÄÙ ³ ³ ³  ³

    3   Slave installed    Slave not inst. ÄÄÄÄÄÄÙ ³ ³  ³

    4   7 byte ECC         4 byte ECC      ÄÄÄÄÄÄÄÄÙ ³  ³

    5   Factory test       Normal Oper.    ÄÄÄÄÄÄÄÄÄÄÙ  ³

    6/7 Some PWA's have these pins, factory use  ÄÄÄÄÄÄÄÙ

SWIFT Shrouded AT Interface Connector Only

     ÚÄÄÄ\

     ³ 0 ³  5   ÚÄ If the AT Connector has a plastic shroud, note pin-1

     ³ 0 ³  G   ³        Ú Pin-20 missing for keying purposes

     ³ 0 ³  G   ³        ³

     ³ 0 ³ 12  ÕÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍ¸     o o o . o o

     ÀÄÄÄ/     ³:::::::::ù:::::::::1³     o o o . o o   (Note: 8-pin jumper

     ÍÍÍÍPÍWÍAÍÏÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ    block on side of

                                          1 2 3 4 5 6     drive for factory

      ON                 OFF              ³ ³ ³ ³ ³ ³     use only.)

 1   Slave              Master          ÄÄÙ ³ ³ ³ ³ ³

 2   Slave installed    Slave not inst. ÄÄÄÄÙ ³ ³ ³ ³

 3   SPSYNC (spindle sync) on Pin-28 ÄÄÄÄÄÄÄÄÄÙ ³ ³ ³

 4   (pins removed) ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ ³ ³

 5   Spare ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ ³

 6   SPSYNC External Connection ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

                             ST-1201A

                         94354-200 Swift

       UNFORMATTED CAPACITY (MB) ________________201

       FORMATTED CAPACITY (36 SECTORS) (MB) _____177

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________9,648

       CYLINDERS ________________________________1,072

       HEADS ____________________________________9

       DISCS ____________________________________5

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       TRANSFER RATE (mbytes/sec) _______________1.25

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________32 or 64 Kbyte

         Read Look-Ahead, Non-Adaptive,

         Single-Segmented

       INTERFACE ________________________________AT BUS

       SECTORS PER DRIVE ________________________347,328

       TPI (TRACKS PER INCH) ____________________1,350

       BPI (BITS PER INCH) ______________________28,103

       AVERAGE ACCESS (ms) ______________________15

       SINGLE TRACK SEEK (ms) ___________________4

       MAX FULL SEEK (ms) _______________________35

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.5

                           +12V TYPICAL (amps) __0.7

                           +5V START-UP (amps) __0.75

                           +5V TYPICAL (amps) ___0.4

                           TYPICAL (watts) ______11

                           MAXIMUM (watts) ______33.75

       BUFFERED STEP PULSE RATE (micro sec) _____6-200

       WRITE PRECOMP (cyl) ______________________N/A (1073)

       REDUCED WRITE CURRENT (cyl) ______________N/A (1073)

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________*

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:   804 cyl, 12 heads, 36 sectors = 177,831,936

Possible translation:   804 cyl,  9 heads, 48 sectors = 177,831,936

Possible translation:   954 cyl, 14 heads, 26 sectors = 177,795,072

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

                          Swift Remote LED Option

               Front View of Drive Without the Plastic Bezel

                                  ÚÄÄÄÂÄÄÄ¿

                                  ³ A ³ B ³    B = Anode

                                  ÃÄÄÄÅÄÄÄ´    D = Cathode

                                  ³ C ³ D ³

              ...ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÏÍÍÍÏÍÍÍÍÍPÍWÍAÍÍÍ...

        ø Default jumper at C-D for LED mounted on drive PWA

        ø To use remote LED, remove jumper and extend B (Anode)

          and D (Cathode).

        ø Swift LED kit 75912397 allows connection to a remote LED

        ø Swift LED kit 95913369 has an LED for attachment to the

          system front bezel or a 5.25-inch frame kit

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-1239A
ST-1239A (94354-239 or 230) Swift AT (IDE)

     ÚÄÄÄ\

     ³ 0 ³  5

     ³ 0 ³  G                                          ÚÄ¿  Some have

     ³ 0 ³  G       AT (IDE) Cable                     ³ ÃÄ these pins

     ³ 0 ³ 12  1Ú........................¿   o o o o o(o o) 6 is OFF

     ÀÄÄÄ/       ........................    o o o o o(o o) 7 is ON

    ÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                             1 2 3 4 5 6 7

         ON                 OFF              ³ ³ ³ ³ ³ ÀÂÙ

    1   Slave              Master          ÄÄÙ ³ ³ ³ ³  ³

    2   5 Heads            7/9 Heads       ÄÄÄÄÙ ³ ³ ³  ³

    3   Slave installed    Slave not inst. ÄÄÄÄÄÄÙ ³ ³  ³

    4   7 byte ECC         4 byte ECC      ÄÄÄÄÄÄÄÄÙ ³  ³

    5   Factory test       Normal Oper.    ÄÄÄÄÄÄÄÄÄÄÙ  ³

    6/7 Some PWA's have these pins, factory use  ÄÄÄÄÄÄÄÙ

SWIFT Shrouded AT Interface Connector Only

     ÚÄÄÄ\

     ³ 0 ³  5   ÚÄ If the AT Connector has a plastic shroud, note pin-1

     ³ 0 ³  G   ³        Ú Pin-20 missing for keying purposes

     ³ 0 ³  G   ³        ³

     ³ 0 ³ 12  ÕÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍ¸     o o o . o o

     ÀÄÄÄ/     ³:::::::::ù:::::::::1³     o o o . o o   (Note: 8-pin jumper

     ÍÍÍÍPÍWÍAÍÏÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ    block on side of

                                          1 2 3 4 5 6     drive for factory

      ON                 OFF              ³ ³ ³ ³ ³ ³     use only.)

 1   Slave              Master          ÄÄÙ ³ ³ ³ ³ ³

 2   Slave installed    Slave not inst. ÄÄÄÄÙ ³ ³ ³ ³

 3   SPSYNC (spindle sync) on Pin-28 ÄÄÄÄÄÄÄÄÄÙ ³ ³ ³

 4   (pins removed) ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ ³ ³

 5   Spare ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ ³

 6   SPSYNC External Connection ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

                             ST-1239A

                          94354-239 or 230  Swift

       UNFORMATTED CAPACITY (MB) ________________239

       FORMATTED CAPACITY (36 SECTORS) (MB) _____211

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________11,448

       CYLINDERS ________________________________1,272

       HEADS ____________________________________9

       DISCS ____________________________________5

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       TRANSFER RATE (mbytes/sec) _______________1.25

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________32 or 64 Kbyte

         Read Look-Ahead, Non-Adaptive,

         Single-Segmented

       INTERFACE ________________________________AT BUS

       SECTORS PER DRIVE ________________________412,128

       TPI (TRACKS PER INCH) ____________________1,543

       BPI (BITS PER INCH) ______________________28,103

       AVERAGE ACCESS (ms) ______________________15

       SINGLE TRACK SEEK (ms) ___________________4

       MAX FULL SEEK (ms) _______________________35

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.5

                           +12V TYPICAL (amps) __0.7

                           +5V START-UP (amps) __0.75

                           +5V TYPICAL (amps) ___0.4

                           TYPICAL (watts) ______11

                           MAXIMUM (watts) ______33.75

       BUFFERED STEP PULSE RATE (micro sec) _____6-200

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________*

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE.

Possible Translation:  954 cyl, 12 heads, 36 sectors = 211,009,536

Possible Translation:  817 cyl, 14 heads, 36 sectors = 210,825,216

Possible Translation:  990 cyl, 16 heads, 26 sectors = 210,862,080

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

                          Swift Remote LED Option

               Front View of Drive Without the Plastic Bezel

                                  ÚÄÄÄÂÄÄÄ¿

                                  ³ A ³ B ³    B = Anode

                                  ÃÄÄÄÅÄÄÄ´    D = Cathode

                                  ³ C ³ D ³

              ...ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÏÍÍÍÏÍÍÍÍÍPÍWÍAÍÍÍ...

        ø Default jumper at C-D for LED mounted on drive PWA

        ø To use remote LED, remove jumper and extend B (Anode)

          and D (Cathode).

        ø Swift LED kit 75912397 allows connection to a remote LED

        ø Swift LED kit 95913369 has an LED for attachment to the

          system front bezel or a 5.25-inch frame kit

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-125A

                                        /ÄÄÄÄÄÄÄ\

          6-pin jumper version          ³O O O O³

                                        À5ÄGÄGÄ12

         ÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍ

          o o o ³::::::::::::::::::::1³

          o o o ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾

          ³ ³ ³

          ³ 0 1  Single Drive            0=open

          ³ 1 1  Dual-Drive Master       1=closed

          ³ 1 0  Dual-Drive Slave

          ³

          ÀÄÄÄÄÄ Optional External LED

                                            /ÄÄÄÄÄÄÄ\

          10-pin jumper version             ³O O O O³

                                            À5ÄGÄGÄ12

         ÍÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍ

          o o o o o ³::::::::::::::::::::1³

          o o o o o ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾

          ³ ³ ³ ³ ³

          ³ ³ ³ ³ À LT (Life Test, factory use only)

          ³ ³ 0 1   Single Drive            0=open

          ³ ³ 1 1   Dual-Drive Master       1=closed

          ³ ³ 0 0   Dual-Drive Slave

          ³ ÀÄÄÄÄÄ  EWS (factory use only)

          ÀÄÄÄÄÄÄÄ  Active Busy (Optional External LED)

                         ST - 125A

       UNFORMATTED CAPACITY (MB) ________________25

       FORMATTED CAPACITY (26 SECTORS) (MB) _____21.5

       ACTUATOR TYPE ____________________________STEPPER

       TRACKS ___________________________________1,616

       CYLINDERS ________________________________404

       HEADS ____________________________________4

       DISCS ____________________________________2

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL

       TRANSFER RATE (mbits/sec) ________________7.5

       SPINDLE SPEED (RPM) ______________________3,600

       INTERFACE ________________________________AT BUS

       TPI (TRACKS PER INCH) ____________________824

       BPI (BITS PER INCH) ______________________16,546

       AVERAGE ACCESS (ms) ______________________40/28*

       SINGLE TRACK SEEK (ms) ___________________8

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.0

                           +12V TYPICAL (amps) __0.35

                           +5V TYPICAL (amps) ___0.9

                           TYPICAL (watts) ______9

                           MAXIMUM (watts) ______29

       BUFFERED STEP PULSE RATE (micro sec) _____3-200

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl)________________________AUTO PARK

       IBM AT DRIVE TYPE ________________________6

       *ST125A-0/ST125A-1

Possible translation:   615 cyl,  4 heads, 17 sectors = 21,411,840

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

WARNING - Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-138A

                                        /ÄÄÄÄÄÄÄ\

          6-pin jumper version          ³O O O O³

                                        À5ÄGÄGÄ12

         ÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍ

          o o o ³::::::::::::::::::::1³

          o o o ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾

          ³ ³ ³

          ³ 0 1  Single Drive            0=open

          ³ 1 1  Dual-Drive Master       1=closed

          ³ 1 0  Dual-Drive Slave

          ³

          ÀÄÄÄÄÄ Optional External LED

                                            /ÄÄÄÄÄÄÄ\

          10-pin jumper version             ³O O O O³

                                            À5ÄGÄGÄ12

         ÍÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍ

          o o o o o ³::::::::::::::::::::1³

          o o o o o ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾

          ³ ³ ³ ³ ³

          ³ ³ ³ ³ À LT (Life Test, factory use only)

          ³ ³ 0 1   Single Drive            0=open

          ³ ³ 1 1   Dual-Drive Master       1=closed

          ³ ³ 0 0   Dual-Drive Slave

          ³ ÀÄÄÄÄÄ  EWS (factory use only)

          ÀÄÄÄÄÄÄÄ  Active Busy (Optional External LED)

                          ST - 138A

       UNFORMATTED CAPACITY (MB) ________________38

       FORMATTED CAPACITY (26 SECTORS) (MB) _____32.1

       ACTUATOR TYPE ____________________________STEPPER

       TRACKS ___________________________________2,416

       CYLINDERS ________________________________604

       HEADS ____________________________________4

       DISCS ____________________________________2

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL

       TRANSFER RATE (mbits/sec) ________________7.5

       SPINDLE SPEED (RPM) ______________________3,600

       INTERFACE ________________________________AT BUS

       TPI (TRACKS PER INCH) ____________________824

       BPI (BITS PER INCH) ______________________22,430

       AVERAGE ACCESS (ms) ______________________40/28*

       SINGLE TRACK SEEK (ms) ___________________8

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.0

                           +12V TYPICAL (amps) __0.35

                           +5V TYPICAL (amps) ___0.9

                           TYPICAL (watts) ______9

                           MAXIMUM (watts) ______29

       BUFFERED STEP PULSE RATE (micro sec) _____3-200

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl)________________________AUTO PARK

       IBM AT DRIVE TYPE ________________________3

       *ST138A-0/ST138A-1

Possible translation:   615 cyl, 6 heads, 17 sectors = 32,117,760

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

WARNING - Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-1400A
ST-1400A AT Interface

NOTE: This figure and the following description of each jumper position

      is only valid on drives that have J6 with 4 pins (2x2).-->¿

                                                                ³

                     J5 Drive ID Select and     ³      ³ J6 (located on side

                     Configuration Select Header³      ³ near rear)

                     ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÙ      ÀÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄ

                                           ³                     o o1

 40-pin I/O Cable Connector                ³              +5v ---o o

   ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸             o o o o o1                ÍÍÍÍÍÍ

 J4³::::::::::ù::::::::1³ /ÄÄÄÄÄÄÄÄÄ\ o o o o o                  ³ ³

  ÍÏÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÏÍ³ 0 0 0 0 ³ÍEÍDÍCÍBÍAÍ      Remote LED³Ù À³Reserved

  (pin 20 missing for     ÀÄ5ÄGÄGÄ12Ù (see below)     Connection³   ³Jumper

   keying purposes)         DC Power                                ³Position

J5

JUMPER | FUNCTION:

A       REFSIG: This location provides a port for external connection

of the synchronized spindle reference signal (pin-1) and ground

(pin-2).  The reference signal is bi-directional, single-ended, and

terminated without an external resistor. It is also available on J4

pin-28 if the factory jumper is installed.  The drive will

self-determine if it is a master of slave for spindle synchronization.

B       HOST SLV/ACT: When this shunt is installed, -SLAVE PRESENT

(provided by the output of a 74HCT14) is applied to J4 pin-39 for

systems that require this signal from the Master drive. If jumper "B"

is installed, then jumper "E" must not be installed.

C       MASTER: When this shunt is installed, the drive is configured

as the Master.  When not installed, the drive is a Slave.

D       SLAVE PRESENT: When installed, this shunt indicates to the

Master drive that a Slave is present.  This shunt must be installed on

the Master drive in a two-drive system.

E       ACTIVE: When this shunt is installed, DASP- is made present on

J4 pin-39. If "E" is installed, then "B" must not be installed.

               ======================================

NOTE: This figure and the following description of each jumper position

      is only valid on drives that have J6 with 6 pins (2x3).-->¿

                                                                ³

                     J5 Drive ID Select and     ³    ³ J6 (located on side

                     Configuration Select Header³    ³ near rear)

                     ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÙ    ÀÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄ

                                           ³                   o o o1

                                           ³            +5v ---o o o

 40-pin I/O Cable Connector                ³                  ÍÍÍÍÍÍÍÍ

   ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸             o o o o o1               1 2 3

 J4³::::::::::ù::::::::1³ /ÄÄÄÄÄÄÄÄÄ\ o o o o o     Remote LEDÃÙ ³ À´Reserved

  ÍÏÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÏÍ³ 0 0 0 0 ³ÍÍÍÍÍÍÍÍÍÍÍ    ConnectionÙ  ³  ³Jumper

  (pin 20 missing for     ÀÄ5ÄGÄGÄ12Ù (see below)Ä¿              ³  ÀPosition

   keying purposes)         DC Power     ÚÄÄÄÄÄÄÄÄÙ   ATA mode ÄÄÙ

                                         ³

                    ÚÄJ5ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄ¿

                    ³        ÚÄ¿     ÚÄ¿ ÚÄ¿   1      ³

                    ³        ³o³  o-C´oÃE´oÃG-o       ³

                    ³        ³oÃB-o  ³o³ ³o³  o       ³

                    ³        ÀAÙ     ÀDÙ ÀFÙ          ³

                    ³   ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ    ³

                    ÀÄÄDefaults shown in solid linesÄÄÙ

J5 Jumper  Function Description

-------------------------------

A    B     (A=vertical, pins 9 & 10; B=horizontal, pins 8 & 10)

OFF  OFF   Drive is the slave (Drive 1).

OFF  ON    Drive is the master (Drive 0) with slave (Drive 1) present.

ON*  OFF   Drive s the master (Drive 0).

C          (C=horizontal, pins 5 & 7)

ON         Slave (Drive 1) Present is connected to J4 pin 39. Jumpers

           "D" or "E" cannot be installed if jumper "C" is installed.

D          (D=vertical, pins 5 & 6)

ON*        DASP- is connected to J4 pin 39. Jumpers "C", "D", "F", or

           "G" cannot be installed if jumper "E" is installed.

OFF        REFSIG is not connected to J4 pin 39.

E          (E=horizontal, pins 3 & 5)

ON         REFSIG is connected to J4 pin 39. Jumpers "C", "D", "F",

           or "G" cannot be installed if jumper "E" is installed.

OFF        REFSIG is not connected to J4 pin 39.

F          (F=vertical, pins 3 & 4)

ON*        No external reference for REFSIG. Jumpers "E", "G", or "H"

           cannot be installed if jumper "F" is installed.

OFF        This location provides a port for external connection of

           the synchronized spindle reference signal (pin 3) and

           ground (pin 4).

G          (G=horizontal, pins 1 & 3)

ON         REFSIG is connected to J4 pin 28. Jumpers "E" or "F" cannot

           be installed if jumper "G" is installed.

OFF        REFSIG is not connected to J4 pin 28.

J6 Jumper  Funtion Description (2x3 jumper block)

-------------------------------------------------

     1     Remote LED connection. Pin 6 is connected to +5v through a

           147 ohm resistor. Pin 5 is the LED driver.

     2     ATA mode. When the jumper is ON, IORDY is not connected to

           J4, DMACK- is connected to J4 pin 27, and DMARQ is

           connected to J4 pin 29. When the jumper is OFF, IORDY is

           connected to J4 pin 27, DMACK- is connected to J4 pin 29,

           and DMARQ is connected to J4 pin 21.

     3     Reserved jumper position.

                              ST - 1400A

       UNFORMATTED CAPACITY (MB) ________________381.8

       FORMATTED CAPACITY (xx SECTORS) (MB) _____331.7*

       AVERAGE SECTORS PER TRACK ________________62 (rounded down)

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________10,325

       CYLINDERS ________________________________1,475

       HEADS ____________________________________7

       DISCS ____________________________________4

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______17 to 25

       SPINDLE SPEED (RPM) ______________________4,412

       AVERAGE LATENCY (mSEC) ___________________6.8

       BUFFER ___________________________________64 Kbyte

         Read Look-Ahead, Non-Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________AT

       BYTES PER TRACK __________________________36,819 avg.

       TPI (TRACKS PER INCH) ____________________1,760

       BPI (BITS PER INCH) ______________________

       AVERAGE ACCESS (ms) ______________________14

       SINGLE TRACK SEEK (ms) ___________________2.5

       MAX FULL SEEK (ms) _______________________26

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.5

                           +12V TYPICAL (amps) __0.54

                           +5V TYPICAL (amps) ___0.30

                           TYPICAL (watts) ______8

                           MAXIMUM (watts) ______15

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl)________________________AUTO PARK

       IBM AT DRIVE TYPE ________________________**

Possible translation:  1,018 cyl, 12 heads, 53 sectors = 331,493,376

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

 * Two spare sectors per cylinder, two spare cylinders per drive.

** MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (11/27/91)


ST-1401A
ST-1401A AT Interface

NOTE: This figure and the following description of each jumper position

      is only valid on drives that have J6 with 4 pins (2x2).-->¿

                                                                ³

                     J5 Drive ID Select and     ³      ³ J6 (located on side

                     Configuration Select Header³      ³ near rear)

                     ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÙ      ÀÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄ

                                           ³                     o o1

 40-pin I/O Cable Connector                ³              +5v ---o o

   ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸             o o o o o1                ÍÍÍÍÍÍ

 J4³::::::::::ù::::::::1³ /ÄÄÄÄÄÄÄÄÄ\ o o o o o                  ³ ³

  ÍÏÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÏÍ³ 0 0 0 0 ³ÍEÍDÍCÍBÍAÍ      Remote LED³Ù À³Reserved

  (pin 20 missing for     ÀÄ5ÄGÄGÄ12Ù (see below)     Connection³   ³Jumper

   keying purposes)         DC Power                                ³Position

J5

JUMPER | FUNCTION:

A       REFSIG: This location provides a port for external connection

of the synchronized spindle reference signal (pin-1) and ground

(pin-2).  The reference signal is bi-directional, single-ended, and

terminated without an external resistor. It is also available on J4

pin-28 if the factory jumper is installed.  The drive will

self-determine if it is a master of slave for spindle synchronization.

B       HOST SLV/ACT: When this shunt is installed, -SLAVE PRESENT

(provided by the output of a 74HCT14) is applied to J4 pin-39 for

systems that require this signal from the Master drive. If jumper "B"

is installed, then jumper "E" must not be installed.

C       MASTER: When this shunt is installed, the drive is configured

as the Master.  When not installed, the drive is a Slave.

D       SLAVE PRESENT: When installed, this shunt indicates to the

Master drive that a Slave is present.  This shunt must be installed on

the Master drive in a two-drive system.

E       ACTIVE: When this shunt is installed, DASP- is made present on

J4 pin-39. If "E" is installed, then "B" must not be installed.

               ======================================

NOTE: This figure and the following description of each jumper position

      is only valid on drives that have J6 with 6 pins (2x3).-->¿

                                                                ³

                     J5 Drive ID Select and     ³    ³ J6 (located on side

                     Configuration Select Header³    ³ near rear)

                     ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÙ    ÀÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄ

                                           ³                   o o o1

                                           ³            +5v ---o o o

 40-pin I/O Cable Connector                ³                  ÍÍÍÍÍÍÍÍ

   ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸             o o o o o1               1 2 3

 J4³::::::::::ù::::::::1³ /ÄÄÄÄÄÄÄÄÄ\ o o o o o     Remote LEDÃÙ ³ À´Reserved

  ÍÏÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÏÍ³ 0 0 0 0 ³ÍÍÍÍÍÍÍÍÍÍÍ    ConnectionÙ  ³  ³Jumper

  (pin 20 missing for     ÀÄ5ÄGÄGÄ12Ù (see below)Ä¿              ³  ÀPosition

   keying purposes)         DC Power     ÚÄÄÄÄÄÄÄÄÙ   ATA mode ÄÄÙ

                                         ³

                    ÚÄJ5ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄ¿

                    ³        ÚÄ¿     ÚÄ¿ ÚÄ¿   1      ³

                    ³        ³o³  o-C´oÃE´oÃG-o       ³

                    ³        ³oÃB-o  ³o³ ³o³  o       ³

                    ³        ÀAÙ     ÀDÙ ÀFÙ          ³

                    ³   ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ    ³

                    ÀÄÄDefaults shown in solid linesÄÄÙ

J5 Jumper  Function Description

-------------------------------

A    B     (A=vertical, pins 9 & 10; B=horizontal, pins 8 & 10)

OFF  OFF   Drive is the slave (Drive 1).

OFF  ON    Drive is the master (Drive 0) with slave (Drive 1) present.

ON*  OFF   Drive s the master (Drive 0).

C          (C=horizontal, pins 5 & 7)

ON         Slave (Drive 1) Present is connected to J4 pin 39. Jumpers

           "D" or "E" cannot be installed if jumper "C" is installed.

D          (D=vertical, pins 5 & 6)

ON*        DASP- is connected to J4 pin 39. Jumpers "C", "D", "F", or

           "G" cannot be installed if jumper "E" is installed.

OFF        REFSIG is not connected to J4 pin 39.

E          (E=horizontal, pins 3 & 5)

ON         REFSIG is connected to J4 pin 39. Jumpers "C", "D", "F",

           or "G" cannot be installed if jumper "E" is installed.

OFF        REFSIG is not connected to J4 pin 39.

F          (F=vertical, pins 3 & 4)

ON*        No external reference for REFSIG. Jumpers "E", "G", or "H"

           cannot be installed if jumper "F" is installed.

OFF        This location provides a port for external connection of

           the synchronized spindle reference signal (pin 3) and

           ground (pin 4).

G          (G=horizontal, pins 1 & 3)

ON         REFSIG is connected to J4 pin 28. Jumpers "E" or "F" cannot

           be installed if jumper "G" is installed.

OFF        REFSIG is not connected to J4 pin 28.

J6 Jumper  Funtion Description (2x3 jumper block)

-------------------------------------------------

     1     Remote LED connection. Pin 6 is connected to +5v through a

           147 ohm resistor. Pin 5 is the LED driver.

     2     ATA mode. When the jumper is ON, IORDY is not connected to

           J4, DMACK- is connected to J4 pin 27, and DMARQ is

           connected to J4 pin 29. When the jumper is OFF, IORDY is

           connected to J4 pin 27, DMACK- is connected to J4 pin 29,

           and DMARQ is connected to J4 pin 21.

     3     Reserved jumper position.

                              ST - 1401A

       UNFORMATTED CAPACITY (MB) ________________395.7

       FORMATTED CAPACITY (xx SECTORS) (MB) _____343.7*

       AVERAGE SECTORS PER TRACK ________________65 (rounded down)

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________10,188

       CYLINDERS ________________________________1,132

       HEADS ____________________________________9

       DISCS ____________________________________5

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______20 to 25

       SPINDLE SPEED (RPM) ______________________4,412

       AVERAGE LATENCY (mSEC) ___________________6.8

       BUFFER ___________________________________64 Kbyte

         Read Look-Ahead, Non-Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________AT

       BYTES PER TRACK __________________________38,803 avg.

       TPI (TRACKS PER INCH) ____________________1,760

       BPI (BITS PER INCH) ______________________

       AVERAGE ACCESS (ms) ______________________12

       SINGLE TRACK SEEK (ms) ___________________2.5

       MAX FULL SEEK (ms) _______________________24

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.5

                           +12V TYPICAL (amps) __0.54

                           +5V TYPICAL (amps) ___0.53

                           TYPICAL (watts) ______8

                           MAXIMUM (watts) ______15

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl)________________________AUTO PARK

       IBM AT DRIVE TYPE ________________________**

Possible translation:  726 cyl, 15 heads, 61 sectors = 340,116,480

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

 * Two spare sector per cyliner, two spare cylinders per drive.

** MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (4/12/91)


ST-1480A
ST-1480A AT Interface

NOTE: This figure and the following description of each jumper position

      is only valid on drives that have J6 with 4 pins (2x2).-->¿

                                                                ³

                     J5 Drive ID Select and     ³      ³ J6 (located on side

                     Configuration Select Header³      ³ near rear)

                     ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÙ      ÀÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄ

                                           ³                     o o1

 40-pin I/O Cable Connector                ³              +5v ---o o

   ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸             o o o o o1                ÍÍÍÍÍÍ

 J4³::::::::::ù::::::::1³ /ÄÄÄÄÄÄÄÄÄ\ o o o o o                  ³ ³

  ÍÏÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÏÍ³ 0 0 0 0 ³ÍEÍDÍCÍBÍAÍ      Remote LED³Ù À³Reserved

  (pin 20 missing for     ÀÄ5ÄGÄGÄ12Ù (see below)     Connection³   ³Jumper

   keying purposes)         DC Power                                ³Position

J5

JUMPER | FUNCTION:

A       REFSIG: This location provides a port for external connection

of the synchronized spindle reference signal (pin-1) and ground

(pin-2).  The reference signal is bi-directional, single-ended, and

terminated without an external resistor. It is also available on J4

pin-28 if the factory jumper is installed.  The drive will

self-determine if it is a master of slave for spindle synchronization.

B       HOST SLV/ACT: When this shunt is installed, -SLAVE PRESENT

(provided by the output of a 74HCT14) is applied to J4 pin-39 for

systems that require this signal from the Master drive. If jumper "B"

is installed, then jumper "E" must not be installed.

C       MASTER: When this shunt is installed, the drive is configured

as the Master.  When not installed, the drive is a Slave.

D       SLAVE PRESENT: When installed, this shunt indicates to the

Master drive that a Slave is present.  This shunt must be installed on

the Master drive in a two-drive system.

E       ACTIVE: When this shunt is installed, DASP- is made present on

J4 pin-39. If "E" is installed, then "B" must not be installed.

               ======================================

NOTE: This figure and the following description of each jumper position

      is only valid on drives that have J6 with 6 pins (2x3).-->¿

                                                                ³

                     J5 Drive ID Select and     ³    ³ J6 (located on side

                     Configuration Select Header³    ³ near rear)

                     ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÙ    ÀÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄ

                                           ³                   o o o1

                                           ³            +5v ---o o o

 40-pin I/O Cable Connector                ³                  ÍÍÍÍÍÍÍÍ

   ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸             o o o o o1               1 2 3

 J4³::::::::::ù::::::::1³ /ÄÄÄÄÄÄÄÄÄ\ o o o o o     Remote LEDÃÙ ³ À´Reserved

  ÍÏÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÏÍ³ 0 0 0 0 ³ÍÍÍÍÍÍÍÍÍÍÍ    ConnectionÙ  ³  ³Jumper

  (pin 20 missing for     ÀÄ5ÄGÄGÄ12Ù (see below)Ä¿              ³  ÀPosition

   keying purposes)         DC Power     ÚÄÄÄÄÄÄÄÄÙ   ATA mode ÄÄÙ

                                         ³

                    ÚÄJ5ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄ¿

                    ³        ÚÄ¿     ÚÄ¿ ÚÄ¿   1      ³

                    ³        ³o³  o-C´oÃE´oÃG-o       ³

                    ³        ³oÃB-o  ³o³ ³o³  o       ³

                    ³        ÀAÙ     ÀDÙ ÀFÙ          ³

                    ³   ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ    ³

                    ÀÄÄDefaults shown in solid linesÄÄÙ

J5 Jumper  Function Description

-------------------------------

A    B     (A=vertical, pins 9 & 10; B=horizontal, pins 8 & 10)

OFF  OFF   Drive is the slave (Drive 1).

OFF  ON    Drive is the master (Drive 0) with slave (Drive 1) present.

ON*  OFF   Drive s the master (Drive 0).

C          (C=horizontal, pins 5 & 7)

ON         Slave (Drive 1) Present is connected to J4 pin 39. Jumpers

           "D" or "E" cannot be installed if jumper "C" is installed.

D          (D=vertical, pins 5 & 6)

ON*        DASP- is connected to J4 pin 39. Jumpers "C", "D", "F", or

           "G" cannot be installed if jumper "E" is installed.

OFF        REFSIG is not connected to J4 pin 39.

E          (E=horizontal, pins 3 & 5)

ON         REFSIG is connected to J4 pin 39. Jumpers "C", "D", "F",

           or "G" cannot be installed if jumper "E" is installed.

OFF        REFSIG is not connected to J4 pin 39.

F          (F=vertical, pins 3 & 4)

ON*        No external reference for REFSIG. Jumpers "E", "G", or "H"

           cannot be installed if jumper "F" is installed.

OFF        This location provides a port for external connection of

           the synchronized spindle reference signal (pin 3) and

           ground (pin 4).

G          (G=horizontal, pins 1 & 3)

ON         REFSIG is connected to J4 pin 28. Jumpers "E" or "F" cannot

           be installed if jumper "G" is installed.

OFF        REFSIG is not connected to J4 pin 28.

J6 Jumper  Funtion Description (2x3 jumper block)

-------------------------------------------------

     1     Remote LED connection. Pin 6 is connected to +5v through a

           147 ohm resistor. Pin 5 is the LED driver.

     2     ATA mode. When the jumper is ON, IORDY is not connected to

           J4, DMACK- is connected to J4 pin 27, and DMARQ is

           connected to J4 pin 29. When the jumper is OFF, IORDY is

           connected to J4 pin 27, DMACK- is connected to J4 pin 29,

           and DMARQ is connected to J4 pin 21.

     3     Reserved jumper position.

                              ST - 1480A

       UNFORMATTED CAPACITY (MB) ________________490.9

       FORMATTED CAPACITY (xx SECTORS) (MB) _____426.1*

       AVERAGE SECTORS PER TRACK ________________62 (rounded down)

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________13,302

       CYLINDERS ________________________________1,475 (user)

       HEADS ____________________________________9

       DISCS ____________________________________5

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______17 to 25

       SPINDLE SPEED (RPM) ______________________4,412

       AVERAGE LATENCY (mSEC) ___________________6.8

       BUFFER ___________________________________64 Kbyte

         Read Look-Ahead, Non-Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________AT

       BYTES PER TRACK __________________________36,819 avg.

       TPI (TRACKS PER INCH) ____________________1,760

       BPI (BITS PER INCH) ______________________

       AVERAGE ACCESS (ms) ______________________14

       SINGLE TRACK SEEK (ms) ___________________2.5

       MAX FULL SEEK (ms) _______________________26

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.5

                           +12V TYPICAL (amps) __0.54

                           +5V TYPICAL (amps) ___0.3

                           TYPICAL (watts) ______8

                           MAXIMUM (watts) ______15

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl)________________________AUTO PARK

       IBM AT DRIVE TYPE ________________________**

Possible translation:   895 cyl, 15 heads, 62 sectors = 426,163,200

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

 * Two spare sectors per cylinder, 2 spare cylinders per unit.

** MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (8/30/91)


ST-157A

                                        /ÄÄÄÄÄÄÄ\

          6-pin jumper version          ³O O O O³

                                        À5ÄGÄGÄ12

         ÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍ

          o o o ³::::::::::::::::::::1³

          o o o ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾

          ³ ³ ³

          ³ 0 1  Single Drive            0=open

          ³ 1 1  Dual-Drive Master       1=closed

          ³ 1 0  Dual-Drive Slave

          ³

          ÀÄÄÄÄÄ Optional External LED

                                            /ÄÄÄÄÄÄÄ\

          10-pin jumper version             ³O O O O³

                                            À5ÄGÄGÄ12

         ÍÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍ

          o o o o o ³::::::::::::::::::::1³

          o o o o o ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾

          ³ ³ ³ ³ ³

          ³ ³ ³ ³ À LT (Life Test, factory use only)

          ³ ³ 0 1   Single Drive            0=open

          ³ ³ 1 1   Dual-Drive Master       1=closed

          ³ ³ 0 0   Dual-Drive Slave

          ³ ÀÄÄÄÄÄ  EWS (factory use only)

          ÀÄÄÄÄÄÄÄ  Active Busy (Optional External LED)

                          ST - 157A

       UNFORMATTED CAPACITY (MB) ________________57

       FORMATTED CAPACITY (26 SECTORS) (MB) _____44.7

       ACTUATOR TYPE ____________________________STEPPER

       TRACKS ___________________________________3,360

       CYLINDERS ________________________________560

       HEADS ____________________________________6

       DISCS ____________________________________3

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       TRANSFER RATE (mbits/sec) ________________7.5

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.3

       BUFFER ___________________________________2 Kbyte

       INTERFACE ________________________________AT BUS

       SECTORS PER DRIVE ________________________87,360

       TPI (TRACKS PER INCH) ____________________824

       BPI (BITS PER INCH) ______________________20,280

       AVERAGE ACCESS (ms) ______________________40/28*

       SINGLE TRACK SEEK (ms) ___________________8

       MAX FULL SEEK (ms) _______________________ /70

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.0

                           +12V TYPICAL (amps) __0.35

                           +5V TYPICAL (amps) ___0.9

                           TYPICAL (watts) ______9

                           MAXIMUM (watts) ______29

       BUFFERED STEP PULSE RATE (micro sec) _____3-200

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl)________________________AUTO PARK

       IBM AT DRIVE TYPE ________________________36 (or 14, 17, 21)**

       *ST157A-0/ST157A-1

Possible translation:   733 cyl, 7 heads, 17 sectors = 44,660,224

Possible translation:  1024 cyl, 5 heads, 17 sectors = 44,564,480

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

 ** MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE.

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

WARNING - Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-2274A
ST-2274A (94244-274) Wren 6 HH AT (IDE)

      ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿                          /ÄÄÄÄÄÄÄ\

   ÍÍÍµ1::AT:(IDE):Cable:::ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµO O O OÆÍÍ

      ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ          o o o o o o o   ÀÄÄÄÄÄÄÄÙ

                                      o o o o o o o    5 G G 12

                                      G F E D C B A

A  B

0  0  Factory use only

0  1  Drive is Slave, motor start delay 20 sec from master start-up

1  0  Drive is Slave, no motor start delay

1  1  Drive is Master, motor starts at application of DC power

C  D

0  0  Physical mode

0  1  Translate (logical) mode, sparing scheme is one sector

1  0  Translate (logical) mode, no sparing space allocated

1  1  Factory use only

E

0     Slave present, only meaningful on master

1     No Slave present

F  G

x  x  Factory test, position G may or may not be present by PWA

                             ST-2274A

                        94244-274 WREN 6 HH

       UNFORMATTED CAPACITY (MB) ________________274

       FORMATTED CAPACITY (54 SECTORS) (MB) _____241

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________8735

       CYLINDERS ________________________________1747

       HEADS ____________________________________5

       DISCS ____________________________________3

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       TRANSFER RATE (mbytes/sec) _______________1.875

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________32 Kbyte

         Read Look-Ahead, Non-Adaptive,

         Single-Segmented Buffer

       INTERFACE ________________________________AT

       TPI (TRACKS PER INCH) ____________________1459

       BPI (BITS PER INCH) ______________________31699

       AVERAGE ACCESS (ms) ______________________16

       SINGLE TRACK SEEK (ms) ___________________3

       MAX FULL SEEK (ms) _______________________33

       MTBF (power-on hours) ____________________100,000

       POWER REQUIREMENTS: +12V START-UP (amps) _4.5

                           +12V TYPICAL (amps) __0.95

                           +5V START-UP (amps) __1.0

                           +5V TYPICAL (amps) ___0.75

                           TYPICAL (watts) ______15

                           MAXIMUM (watts) ______59

       BUFFERED STEP PULSE RATE (micro sec) _____

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________*

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE.

Possible Translation:   873 cyls, 10 heads, 54 sectors = 241,367,040

Possible Translation:   536 cyls, 16 heads, 55 sectors = 241,500,160

Possible translation:   873 cyl,  15 heads, 36 sectors = 241,367,040

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

WARNING - Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-2383A
ST-2383A (94244-383) Wren 6 HH AT (IDE)

      ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿                          /ÄÄÄÄÄÄÄ\

   ÍÍÍµ1  AT (IDE) Cable   ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµO O O OÆÍÍ

      ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ          o o o o o o o   ÀÄÄÄÄÄÄÄÙ

                                      o o o o o o o    5 G G 12

                                      G F E D C B A

A  B

0  0  Factory use only

0  1  Drive is Slave, motor start delay 20 sec from master start-up

1  0  Drive is Slave, no motor start delay

1  1  Drive is Master, motor starts at application of DC power

C  D

0  0  Physical mode

0  1  Translate (logical) mode, sparing scheme is one sector

1  0  Translate (logical) mode, no sparing space allocated

1  1  Factory use only

E

0     Slave present, only meaningful on master

1     No Slave present

F  G

x  x  Factory test, position G may or may not be present by PWA

                             ST-2383A

                        94244-383 WREN 6 HH

       UNFORMATTED CAPACITY (MB) ________________383

       FORMATTED CAPACITY (54 SECTORS) (MB) _____338

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________12,229

       CYLINDERS ________________________________1,747

       HEADS ____________________________________7

       DISCS ____________________________________4

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       TRANSFER RATE (mbytes/sec) _______________1.875

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________32 Kbyte

         Read Look-Ahead, Non-Adaptive,

         Single-Segmented Buffer

       INTERFACE ________________________________AT

       TPI (TRACKS PER INCH) ____________________1,459

       BPI (BITS PER INCH) ______________________31,699

       AVERAGE ACCESS (ms) ______________________16

       SINGLE TRACK SEEK (ms) ___________________3

       MAX FULL SEEK (ms) _______________________33

       MTBF (power-on hours) ____________________100,000

       POWER REQUIREMENTS: +12V START-UP (amps) _4.5

                           +12V TYPICAL (amps) __0.95

                           +5V START-UP (amps) __1.0

                           +5V TYPICAL (amps) ___0.75

                           TYPICAL (watts) ______15

                           MAXIMUM (watts) ______59

       BUFFERED STEP PULSE RATE (micro sec) _____

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________*

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE.

Possible Translation:  873 cyls, 14 heads, 54 sectors = 337,913,856

Possible Translation:  737 cyls, 16 heads, 56 sectors = 338,100,224

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

WARNING - Already low-level formatted at the factory

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-274A
ST-274A (94204-74 or 94204-65) Wren 2 HH AT (IDE)

                                        ÚÄÄMaster on /Slave off

                                        ³             ÚÄÄÄÄÄÄÄÄÄ¿

                                        ³Ú Leave as is³ O O O O ³ Power

       1              J3                ³³ 1  J2      \ÄÄÄÄÄÄÄÄÄ/

       :::AT:(IDE):Cable::::::::::::::: :: :::::::::   12 G G 5

      ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                             ST-274A

                        94204-74 WREN 2 HH

       UNFORMATTED CAPACITY (MB) ________________74

       FORMATTED CAPACITY (26 SECTORS) (MB) _____65.5

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________4740

       CYLINDERS ________________________________948

       HEADS ____________________________________5

       DISCS ____________________________________3

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL

       TRANSFER RATE (mbytes/sec) _______________0.937

       SPINDLE SPEED (RPM) ______________________3,600

       BUFFER ___________________________________32 Kbyte

         Read Look-Ahead, Non-Adaptive,

         Single-Segmented Buffer

       INTERFACE ________________________________AT

       TPI (TRACKS PER INCH) ____________________960

       BPI (BITS PER INCH) ______________________13489

       AVERAGE ACCESS (ms) ______________________29

       SINGLE TRACK SEEK (ms) ___________________5

       MTBF (power-on hours) ____________________40,000

       POWER REQUIREMENTS: +12V START-UP (amps) _4.5

                           +12V TYPICAL (amps) __1.5

                           +5V START-UP (amps) __0.6

                           +5V TYPICAL (amps) ___0.4

                           TYPICAL (watts) ______20

                           MAXIMUM (watts) ______58

       BUFFERED STEP PULSE RATE (micro sec) _____

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________4, *

Possible translation:   940 cyl, 8 heads, 17 sectors = 65,454,080

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE.

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

WARNING - Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-280A
ST-280A (94204-81 or 94204-71) Wren 2 HH AT (IDE)

                          ÚÄÄ Master on /Slave off

                          ³

                          ³   Factory    Ú12ÄGÄGÄ5Ä¿ Power

     AT Cable Connector   ³   1  J2      ³ 0 0 0 0 ³

   1::::::::ù::::::::::   ::  :::::::::  \Ä1Ä2Ä3Ä4Ä/

  ÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

            pin-20 key     ³

                           ³  ³ For "non-C" model, jumper, if present,

                           ³  ³ must remain on. Drive will not operate

                           ÀÄÄ´ properly if jumper is removed (or added

                              ³ if not originally there).

                              ³

                              ³ For "C" model, jumper on indicates No

                              ³ Slave Present; jumper off means Slave

                              ³ Drive Is Present.

                              ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ

Note: There are two different revisions of the ST280A

        1. If you have a 94204-xxC, then you can connect two different

         model drives on the same host adapter. (i.e. a 94204-xxC and

         a 94354-xxx drive)

        2. If you do not have a "C" after the model number, then you

         can only connect two similar Wren 2 94204-xx model drives.

                             ST-280A

                        94204-71 WREN 2 HH

       UNFORMATTED CAPACITY (MB) ________________80.6

       FORMATTED CAPACITY (27 SECTORS) (MB) _____71.3

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________5160

       CYLINDERS ________________________________1032

       HEADS ____________________________________5

       DISCS ____________________________________3

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL

       TRANSFER RATE (mbytes/sec) _______________0.937

       SPINDLE SPEED (RPM) ______________________3,600

       BUFFER ___________________________________32 Kbyte

         Read Look-Ahead, Non-Adaptive,

         Single-Segmented Buffer

       INTERFACE ________________________________AT

       TPI (TRACKS PER INCH) ____________________960

       BPI (BITS PER INCH) ______________________14357

       AVERAGE ACCESS (ms) ______________________29

       SINGLE TRACK SEEK (ms) ___________________5

       MTBF (power-on hours) ____________________40,000

       POWER REQUIREMENTS: +12V START-UP (amps) _4.5

                           +12V TYPICAL (amps) __1.5

                           +5V START-UP (amps) __0.6

                           +5V TYPICAL (amps) ___0.4

                           TYPICAL (watts) ______20

                           MAXIMUM (watts) ______58

       BUFFERED STEP PULSE RATE (micro sec) _____

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________45, *

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE.

Possible Translation: 1024 cyl,  8 heads, 17 sectors = 71,303,168

Possible Translation:  516 cyl, 10 heads, 27 sectors = 71,331,840

Possible Translation:  745 cyl, 11 heads, 17 sectors = 71,329,280

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

WARNING - Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-3051A

                                                   4-pin DC

                   3-pin DC                        Power

                   Power   ÕÍÍÍÍÍÍÍÍÍÍ ÍÍÍÍÍÍÍÍÍ¸/Ä4Ä3Ä2Ä1Ä\

                 ÍÑÍGÍ12Í5Ñµ::::::::::ù::::::::1Æ³ 0 0 0 0 ÆÍ

                  ³ 0 0 0 ³ÔÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍ¾ÀÄ5ÄGÄGÄ12Ù

                  ÔÍ3Í2Í1Í¾   (pin-20 missing

                               for keying purposes)

                User Configuration Block

              ³ (located behind 3-pin DC)

              ÀÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ

                      ³                                  1= On, 0= Off

(back of drive)    2 o-o 1  ÄÄÄ Life Test (do not use)

                   4 o-o 3  ÄÄÄ Master on (Slave off)ÄÄÄ 1  1  0

                   6 o-o 5  ÄÄÄ Slave Present ÄÄÄÄÄÄÄÄÄÄ 0  1  0

                   8 o-o 7  ÄÄÄ Reserved

(front of drive)  10 o-o 9  ÄÄÄ Active LED               S  M  S

                                                         i  a  l

                                                         n  s  a

                                                         g  t  v

                                                         l  e  e

                                                         e  r

                            ST-3051A

       UNFORMATTED CAPACITY (MB) ________________N/A

       FORMATTED CAPACITY (xx/17 SECTORS) (MB) __43.1

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________

       CYLINDERS __PHYSICAL/LOGICAL______________xx/820

       HEADS ______PHYSICAL/LOGICAL______________ /6

       DISCS (3.5 in)____________________________

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       TRANSFER RATE INTERNAL (mbits/sec) _______up to 15

       SPINDLE SPEED (RPM) ______________________3,211

       AVERAGE LATENCY (mSEC) ___________________9.34

       BUFFER ___________________________________32 KByte SeaCache

       INTERFACE ________________________________AT BUS

       SECTORS PER DRIVE ________________________84,270

       TPI (TRACKS PER INCH) ____________________1,792

       BPI (BITS PER INCH) ______________________31,005

       AVERAGE ACCESS (ms) ______________________16

       SINGLE TRACK SEEK (ms) ___________________3

       MAX FULL SEEK (ms) _______________________28

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _0.9

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________5.3

                           IDLE _________________2.1

                           STANDBY ______________0.7

                           SLEEP ________________0.7

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________40, 44*

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:   820 cyl,  6 heads, 17 sectors = 42,823,680

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (5/13/91)


ST-3096A

                                                   4-pin DC

                   3-pin DC                        Power

                   Power   ÕÍÍÍÍÍÍÍÍÍÍ ÍÍÍÍÍÍÍÍÍ¸/Ä4Ä3Ä2Ä1Ä\

                 ÍÑÍGÍ12Í5Ñµ::::::::::ù::::::::1Æ³ 0 0 0 0 ÆÍ

                  ³ 0 0 0 ³ÔÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍ¾ÀÄ5ÄGÄGÄ12Ù

                  ÔÍ3Í2Í1Í¾   (pin-20 missing

                               for keying purposes)

                User Configuration Block

              ³ (located behind 3-pin DC)

              ÀÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ

                      ³                                  1= On, 0= Off

(back of drive)    2 o-o 1  ÄÄÄ Life Test (do not use)

                   4 o-o 3  ÄÄÄ Master on (Slave off)ÄÄÄ 1  1  0

                   6 o-o 5  ÄÄÄ Slave Present ÄÄÄÄÄÄÄÄÄÄ 0  1  0

                   8 o-o 7  ÄÄÄ Reserved

(front of drive)  10 o-o 9  ÄÄÄ Active LED               S  M  S

                                                         i  a  l

                                                         n  s  a

                                                         g  t  v

                                                         l  e  e

                                                         e  r

                            ST-3096A

       UNFORMATTED CAPACITY (MB) ________________N/A

       FORMATTED CAPACITY (xx/17 SECTORS) (MB) __89.2

       ACTUATOR TYPE ____________________________STRAIGHT ARM

       TRACKS ___________________________________

       CYLINDERS __PHYSICAL/LOGICAL______________xx/1024

       HEADS ______PHYSICAL/LOGICAL______________3/10

       DISCS (3.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       TRANSFER RATE INTERNAL (mbits/sec) _______up to 15

       SPINDLE SPEED (RPM) ______________________3,211

       AVERAGE LATENCY (mSEC) ___________________9.34

       BUFFER ___________________________________32 KByte SeaCache

       INTERFACE ________________________________AT BUS

       SECTORS PER DRIVE ________________________174,080

       TPI (TRACKS PER INCH) ____________________1,792

       BPI (BITS PER INCH) ______________________31,005

       AVERAGE ACCESS (ms) ______________________14

       SINGLE TRACK SEEK (ms) ___________________3

       MAX FULL SEEK (ms) _______________________22

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _0.9

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________5.3

                           IDLE _________________2.1

                           STANDBY ______________0.7

                           SLEEP ________________0.7

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     1.00/25.4

                        Width  (inches/mm):     4.02/102.1

                        Depth  (inches/mm):     5.77/146.6

                        Weight   (lbs/kg):      1.3/0.59

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:  1024 cyl, 10 heads, 17 sectors = 89,128,960

Possible translation:   836 cyl,  8 heads, 26 sectors = 89,030,656

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (5/13/91)


ST-31060A
ST-31060A, Cabo 1060 AT (Cabo CFS1060A)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

 Optional Mini Power

 Power Connector      J2 40 pin I/O Cable Connection

    ÚÄÁÄ¿             ³

    G   5  ÕÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

  Íµ0 0 0ÆÍµ::::::::::ú::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

      12   ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                      ³

                      ÀÄÄÄ pin-20 removed

     ST-31060A

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º              ÚÄÄÄÄ  Not Used

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼              ³

                                ³ ÚÄÄ  Master ON, Slave OFF (C/D)

                                ³ ³

    (TOP)         o o o o o   o o o1

Option Block   ÍÍÍ  o o o o   o o o2ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

   (BOTTOM)       ÀÄÄÄÂÄÄÄÙ   ³

                      ³       ³

          Reserved ÄÄÄÙ       ³

          Cable Select  ÄÄÄÄÄÄÙ

                             ST-31060A

                     Cabo 1060 AT (Cabo CFS1060A)

       FORMATTED CAPACITY _______________________1065

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________3640

       HEADS ______PHYSICAL______________________6

       DISCS (3.5 in) ___________________________3

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (Mbits/sec) _______29.5 to 54.9

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 16.6

       PIO MODE _________________________________4

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________3600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________64K

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________ATA

       SECTORS PER DRIVE (LBA mode) _____________

       TPI (TRACKS PER INCH) ____________________3849

       BPI (KBITS PER INCH) _____________________77K

       AVERAGE ACCESS (ms) ______________________14

       SINGLE TRACK SEEK (ms) ___________________3

       MAX FULL SEEK (ms) _______________________26

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating (Read/Write) __________5

                abnormal ________________________

                nonoperating ____________________75

       ACOUSTICS (bels) (typ/max) _______________38/

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________3.5

                           IDLE _________________3.5

                           STANDBY ______________<1.0

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):  1.00/25.4

                        Width  (inches/mm):  4.00/101.6

                        Depth  (inches/mm):  5.75/146.1

                        Weight    (lbs/kg):   1.3/0.59

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       2064 cyl, 16 heads, 63 sectors = 1,065,222,144

                       DOS operating systems may require a system bios

                       that accepts larger values for the CMOS head

                       parameter which lowers cylinders below 1024:

        516 cyl, 64 heads, 63 sectors = 1,065,222,144

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software, system BIOS which supports LBA mode

                       or bios driven host adapters. Otherwise,

                       capacity may be limited to:

       1024 cyl, 16 heads, 63 sectors = 528,482,304

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (09/17/96)


ST-31081A
ST-31081A, Cabo 1081 AT (Cabo Stingray CFS1081A)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                      J2  40 pin I/O Cable Connection

                      ³

           ÕÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

  ÍÍÍÍÍÍÍÍÍµ::::::::::ú::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

           ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                      ³

                      ÀÄÄÄ pin-20 removed

     ST-31081A

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼              ÚÄÄÄÄ  Not used

                                ³

                                ³ ÚÄÄ  Master ON, Slave OFF (C/D)

                                ³ ³

    (TOP)         o o o o o   o o o1

Option Block   ÍÍÍ  o o o o   o o o2ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

   (BOTTOM)       ÀÄÄÄÂÄÄÄÙ   ³

                      ³       ³

          Reserved ÄÄÄÙ       ³

          Cable Select  ÄÄÄÄÄÄÙ

                             ST-31081A

                   Cabo 1081 AT (Cabo Stingray CFS1081A)

       FORMATTED CAPACITY _______________________1081

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________3924

       HEADS ______PHYSICAL______________________4

       DISCS (3.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (Mbits/sec) _______34.5 to 65.2

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 16.6

       PIO MODE _________________________________4

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________3600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________64K

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________ATA

       SECTORS PER DRIVE (LBA mode) _____________

       TPI (TRACKS PER INCH) ____________________4100

       BPI (KBITS PER INCH) _____________________93K

       AVERAGE ACCESS (ms) ______________________14

       SINGLE TRACK SEEK (ms) ___________________3

       MAX FULL SEEK (ms) _______________________26

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating (Read/Write) __________5

                abnormal ________________________

                nonoperating ____________________75

       ACOUSTICS (bels) (typ/max) _______________38/

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________5.6

                           IDLE _________________3.9

                           STANDBY ______________<1.0

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):  1.00/25.4

                        Width  (inches/mm):  4.00/101.6

                        Depth  (inches/mm):  5.75/146.1

                        Weight    (lbs/kg):   1.3/0.59

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       2097 cyl, 16 heads, 63 sectors = 1,082,253,312

                       DOS operating systems may require a system bios

                       that accepts larger values for the CMOS head

                       parameter which lowers cylinders below 1024:

        524 cyl, 64 heads, 63 sectors = 1,081,737,216

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software, system BIOS which supports LBA mode

                       or bios driven host adapters. Otherwise,

                       capacity may be limited to:

       1024 cyl, 16 heads, 63 sectors = 528,482,304

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (02/19/96)


ST-31082A
ST-31082A, Medalist 1082 AT (Lapaz)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                   J2  40 pin I/O Cable Connection

                   ³

        ÕÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍ1Í/ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

       Íµ::::::::::ú::::::::1³ : : : ³ 0 0 0 0 ³ÍÍ

        ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍÏÍ³Í³Í³ÍÀÄ5ÄGÄGÄ12Ù    BOTTOM

                   ³           ³ ³ ³

   pin-20 removed ÄÙ           ³ ³ ÀÄÄ Reserved

                               ³ ÃÄÄÄÄ Slave Present (when Master ON)

                               ³ ÀÄÄÄÄ Cable Select (when Slave OFF)

                               ÀÄÄÄÄÄÄ Master ON, Slave OFF

                             ST-31082A

                      Medalist 1082 AT (Lapaz)

       FORMATTED CAPACITY _______________________1082.25

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________4893

       HEADS ______PHYSICAL______________________4

       DISCS (3.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (Mbits/sec) _______33.6 to 67.2

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 16.6

       PIO MODE _________________________________4

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________4500

       AVERAGE LATENCY (mSEC) ___________________6.67

       BUFFER ___________________________________64K

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________ATA

       SECTORS PER DRIVE (LBA mode) _____________2,114,180

       TPI (TRACKS PER INCH) ____________________4973

       BPI (KBITS PER INCH) _____________________88.4

       AVERAGE ACCESS (ms) ______________________12.5

       SINGLE TRACK SEEK (ms) ___________________3

       MAX FULL SEEK (ms) _______________________24

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating (Read/Write) __________5

                abnormal ________________________

                nonoperating ____________________75

       ACOUSTICS (bels) (typ/max) _______________38/

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _1.2

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________4.6

                           IDLE _________________3.5

                           STANDBY ______________1.0

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):  1.00/25.4

                        Width  (inches/mm):  4.00/101.6

                        Depth  (inches/mm):  5.75/146.1

                        Weight    (lbs/kg):   1.3/0.59

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       2097 cyl, 16 heads, 63 sectors = 1,082,253,312

                       DOS operating systems may require a translation

                       that uses larger values for the CMOS head

                       parameter which lowers cylinders below 1024:

        524 cyl, 64 heads, 63 sectors = 1,081,737,216

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software, system BIOS which supports LBA mode

                       or bios driven host adapters. Otherwise,

                       capacity may be limited to:

       1024 cyl, 16 heads, 63 sectors = 528,482,304

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (09/12/96)


ST-3120A

                                                   4-pin DC

                   3-pin DC                        Power

                   Power   ÕÍÍÍÍÍÍÍÍÍÍ ÍÍÍÍÍÍÍÍÍ¸/Ä4Ä3Ä2Ä1Ä\

                 ÍÑÍGÍ12Í5Ñµ::::::::::ù::::::::1Æ³ 0 0 0 0 ÆÍ

                  ³ 0 0 0 ³ÔÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍ¾ÀÄ5ÄGÄGÄ12Ù

                  ÔÍ3Í2Í1Í¾   (pin-20 missing

                               for keying purposes)

                User Configuration Block

              ³ (located behind 3-pin DC)

              ÀÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ

                      ³                                  1= On, 0= Off

(back of drive)    2 o-o 1  ÄÄÄ Life Test (do not use)

                   4 o-o 3  ÄÄÄ Master on (Slave off)ÄÄÄ 1  1  0

                   6 o-o 5  ÄÄÄ Slave Present ÄÄÄÄÄÄÄÄÄÄ 0  1  0

                   8 o-o 7  ÄÄÄ Reserved

(front of drive)  10 o-o 9  ÄÄÄ Active LED               S  M  S

                                                         i  a  l

                                                         n  s  a

                                                         g  t  v

                                                         l  e  e

                                                         e  r

                            ST-3120A

       UNFORMATTED CAPACITY (MB) ________________N/A

       FORMATTED CAPACITY (xx/17 SECTORS) (MB) __106.9

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________

       CYLINDERS __PHYSICAL/LOGICAL______________xx/1024

       HEADS ______PHYSICAL/LOGICAL______________3/12

       DISCS (3.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7) ZBR

       TRANSFER RATE INTERNAL (mbits/sec) _______up to 15

       SPINDLE SPEED (RPM) ______________________3,211

       AVERAGE LATENCY (mSEC) ___________________9.34

       BUFFER ___________________________________32 KByte SeaCache

       INTERFACE ________________________________AT BUS

       SECTORS PER DRIVE ________________________208,896

       TPI (TRACKS PER INCH) ____________________1,792

       BPI (BITS PER INCH) ______________________31,005

       AVERAGE ACCESS (ms) ______________________15

       SINGLE TRACK SEEK (ms) ___________________3

       MAX FULL SEEK (ms) _______________________25

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _0.9

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________5.3

                           IDLE _________________2.1

                           STANDBY ______________0.7

                           SLEEP ________________0.7

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     1.00/25.4

                        Width  (inches/mm):     4.02/102.1

                        Depth  (inches/mm):     5.77/146.6

                        Weight   (lbs/kg):      1.3/0.59

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:  1024 cyl, 12 heads, 17 sectors = 106,954,752

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (5/13/91)


ST-31220A
ST-31220A (Medalist 1080)

ST-31220A (Medalist 1080)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  Type A configuration

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                40 pin I/O Cable Connection J1

                ³

           ÕÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     ÍÍÍÍÍÍµ::::::::::ú::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

           ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                      ³

                      ÀÄÄÄ pin-20 removed

   ST-31220A

 ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

 º  Front View  º  Type A configuration has ONLY these jumpers on the drive.

 ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

                        ÚÄÄÄÄÄÄÄÄÄÄÄÄÄ Slave pins 1-2

                        ³ ÚÄÄÄÄÄÄÄÄÄÄÄ Master with Slave Present pins 3-4

                        ÃÄÅÄÄÄÄÄÄÄÄÄÄÄ Cable Select pins 1-2 AND 3-4

                        ³ ³ ÚÄÄÄÄÄÂÄÄÄ Dual-drive emulation pins 5-6 AND

  (TOP)                 ³ ³ ³     ³     pins 11-12

                        ³ ³ ³     ³ ÚÄ Remote LED 13-, 14+

                        ³ ³ ³     ³ ³

  J8                   2o o o o o o o14

Option Block   ÍÍÍÍÍÍÍÍ1o o o o o o o ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPWAÍÍÍÍÍÍÍÍÍÍ

                        ³   ³ ³ ³

                        ³   ³ ÀÄÁÄ Reserved

  (BOTTOM)              ÀÄÄÄÁÄÄÄÄÄ Master/Slave timing protocol changes to

                                    PDIAG.  Makes the drive compatible with

                                    some drives as the slave. Must be used

                                    with pins 1-2 (Slave)

                Spare jumpers stored on pins 1-3 and 5-7, as shipped.

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  Type B configuration

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

  J5            40 pin I/O Cable Connection J1

     2o o       ³

     1o o  ÕÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     ÍØÍØÍÍµ::::::::::ú::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

      ³ ³  ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

      ³ ³             ³

      ³ ³             ÀÄÄÄ pin-20 removed

      ³ ³

    OFF OFF -- One drive only

     ON OFF -- Drive is slave

    OFF ON  -- Drive is Master with slave present

     ON ON  -- Cable Select (must also jumper pins 6 and 8 on J8)

    SPARE   -- stored on pins 1-3

   ST-31220A

 ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

 º  Front View  º  Type B configuration

 ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

                        ÚÄÄÄÄÄÄÄÄÄÄÄÄÄ Spare - as shipped

                        ³    ÚÄÄÄÄÄÄÄÄ Cable Select pins 6-8

  (TOP)                 ³    ³   ÚÄÄÄÄ Reserved

                        ³    ³   ³  ÚÄ Remote LED 13-, 14+

                        ³    ³  ÚÁ¿ ³

  J8                    o o oÁo o o o14

Option Block   ÍÍÍÍÍÍÍÍ1o   o o o o o ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPWAÍÍÍÍÍÍÍÍÍÍ

                          ³

  (BOTTOM)                ÀÄÄ pin 3 missing

          Cable Select also requires Slave and Slave Present jumpers ON.

    ST-31220A

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º RIGHT SIDE VIEW º  Type B configuration

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

              ÚÄÄÄ J6 Dual Drive emulation pins 1-2 AND pins 3-4

             ÚÁ¿      (spare jumper stored on pins 1-3, as shipped)

            2o o

BACK   ÕÍ¸  1o o                                 TOP (HDA)  FRONT

 OF      ÆÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾     ³                                 BOTTOM     DRIVE

               ³

               ÀÄ Pins 3-4 jumpered alone changes the Master/Slave

                  timing protocol to PDIAG.  Makes the drive compatible

                  with somes drives as the slave.  Must be used with pins

                  1-2 (Slave) on J5 Master/Slave jumper block.

Note: If the Dual Drive Emulation jumper is used, then TWO CMOS drive

      types will be required and only ONE drive per cable is allowed.

                             ST-31220A

                             Medalist 1080

       UNFORMATTED CAPACITY _____________________

       FORMATTED CAPACITY (xx SECTORS) __________1083

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________3,876

       HEADS ______PHYSICAL______________________6

       DISCS (3.5 in) ___________________________3

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (Mbits/sec) _______27.9 to 47.24

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 16.6

       PIO MODE _________________________________4

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________4,500

       AVERAGE LATENCY (mSEC) ___________________6.67

       BUFFER ___________________________________256 Kbyte SeaCache

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________AT

       SECTORS PER DRIVE ________________________2,116,296

       TPI (TRACKS PER INCH) ____________________4,250

       BPI (BITS PER INCH) ______________________70,101

       AVERAGE ACCESS (ms) (read/write) _________12/14

       SINGLE TRACK SEEK (ms) ___________________3.5

       MAX FULL SEEK (ms) _______________________25

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating (Read/Write) __________2

                nonoperating ____________________75

       ACOUSTICS (typ/max dBA) __________________30/36

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _1.9

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________6.6

                           IDLE _________________2.75

                           STANDBY ______________1

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     1/25.4

                        Width  (inches/mm):  4.02/102.1

                        Depth  (inches/mm):  5.77/146.6

                        Weight    (lbs/kg):   1.5/0.68

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       2099 cyl, 16 heads, 63 sectors = 1,083,285,504

                       DOS operating systems may require a system bios

                       that accepts larger values for the CMOS head

                       parameter which lowers cylinders below 1024:

        524 cyl, 64 heads, 63 sectors = 1,081,737,216

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software, system BIOS which supports LBA mode

                       or bios driven host adapters. Otherwise,

                       capacity may be limited to:

       1024 cyl, 16 heads, 63 sectors = 528,482,304 (Master)

       1024 cyl, 16 heads, 63 sectors = 528,482,304 (Slave see Dual

                       Drive emulation jumper)

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (01/03/96)


ST-3123A

                                                   4-pin DC

                 TOP                               Power

                           ÕÍÍÍÍÍÍÍÍÍÍ ÍÍÍÍÍÍÍÍÍ¸/Ä4Ä3Ä2Ä1Ä\

                    ÍÍÍÍÍÍÍµ::::::::::ù::::::::1Æ³ 0 0 0 0 ÆÍ

                           ÔÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍ¾ÀÄ5ÄGÄGÄ12Ù

                              (pin-20 missing

                               for keying purposes)

    (back of drive)

                    2o-o1 ÄÄÄÄÄÄÄÄ¿

                     o-o  ÄÄÄÄÄÄ¿ ³

                     o-o  ÄÄÄÄ¿ ³ ³    (Options jumper located on bottom)

                    8o-o7 ÄÄ¿ ³ ³ ³

   (front of drive)         ³ ³ ³ ³

                            ³ ³ ³ ÀÄÄ Master OFF, Slave ON ÄÄÄÄÄ  0  0  1

                            ³ ³ ÀÄÄÄÄ Slave Present ON ÄÄÄÄÄÄÄÄÄ  0  1  0

                            ³ ÀÄÄÄÄÄÄ Factory Test                ³  ³  ³

                            ³          (do not use)               S  M  S

                            ÀÄÄÄÄÄÄÄÄ Reserved                    i  a  l

                                                                  n  s  a

                                                                  g  t  v

                                                                  l  e  e

                                                                  e  r

                             ST-3123A

       UNFORMATTED CAPACITY _____________________

       FORMATTED CAPACITY (xx SECTORS) __________106.6

       AVERAGE SECTORS PER TRACK ________________ rounded down

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________

       CYLINDERS ________________________________(user)

       HEADS _(PHYSICAL)_________________________2

       DISCS (3.5 in) ___________________________1

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______ to 21.1

       SPINDLE SPEED (RPM) ______________________3,811

       AVERAGE LATENCY (mSEC) ___________________7.87

       BUFFER ___________________________________32 Kbyte

        Multisegmented

       INTERFACE ________________________________AT

       BYTES PER TRACK __________________________

       SECTORS PER DRIVE ________________________208,896

       TPI (TRACKS PER INCH) ____________________2,400

       BPI (BITS PER INCH) ______________________42,700

       AVERAGE ACCESS (ms) ______________________16

       SINGLE TRACK SEEK (ms) ___________________5

       MAX FULL SEEK (ms) _______________________32

       MTBF (power-on hours) Office _____________250,000

       POWER REQUIREMENTS: +12V START-UP (amps) _1.0

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________4.6

                           IDLE _________________3.9

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     1.00/25.4

                        Width  (inches/mm):     4.02/102.1

                        Depth  (inches/mm):     5.77/146.6

                        Weight    (lbs/kg):     1.5/0.68

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:  1024 cyl, 12 heads, 17 sectors = 106,954,752

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (05/12/93)


ST-31270A
ST-31270A (Medalist 1270)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                40 pin I/O Cable Connection J1

                ³

           ÕÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     ÍÍÍÍÍÍµ::::::::::ú::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

           ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                      ³

                      ÀÄÄÄ pin-20 removed

   ST-31270A

 ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

 º  Front View  º

 ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

                        ÚÄÄÄÄÄÄÄÄÄÄÄÄÄ Slave pins 1-2

                        ³ ÚÄÄÄÄÄÄÄÄÄÄÄ Master with Slave Present pins 3-4

                        ÃÄÅÄÄÄÄÄÄÄÄÄÄÄ Cable Select pins 1-2 AND 3-4

                        ³ ³ ÚÄÄÄÄÄÂÄÄÄ Dual-drive emulation pins 5-6 AND

  (TOP)                 ³ ³ ³     ³     pins 11-12

                        ³ ³ ³     ³ ÚÄ Remote LED 13-, 14+

                        ³ ³ ³     ³ ³

  J8                   2o o o o o o o14

Option Block   ÍÍÍÍÍÍÍÍ1o o o o o o o ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPWAÍÍÍÍÍÍÍÍÍÍ

                        ³   ³ ³ ³

                        ³   ³ ÀÄÁÄ Reserved

  (BOTTOM)              ÀÄÄÄÁÄÄÄÄÄ Master/Slave timing protocol changes to

                                    PDIAG.  Makes the drive compatible with

                                    some drives as the slave. Must be used

                                    with pins 1-2 (Slave)

                Spare jumpers stored on pins 1-3 and 5-7, as shipped.

Note: If the Dual Drive Emulation jumper is used, then TWO CMOS drive

      types will be required, only ONE drive per cable is allowed,

      Cable Select is not supported and the drive responds as a single

      drive to power management commands.

                             ST-31270A

                             Medalist 1270

       FORMATTED CAPACITY (xx SECTORS) __________1282.8

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________3,876

       HEADS ______PHYSICAL______________________6

       DISCS (3.5 in) ___________________________3

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (Mbits/sec) _______29.6 to 57.2

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 16.6

       PIO MODE _________________________________4

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________4,500

       AVERAGE LATENCY (mSEC) ___________________6.67

       BUFFER ___________________________________256 Kbyte SeaCache

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________ATA

       SECTORS PER DRIVE (LBA mode) _____________2,505,528

       TPI (TRACKS PER INCH) ____________________4,250

       BPI (BITS PER INCH) ______________________73,530

       AVERAGE ACCESS (ms) ______________________12

       SINGLE TRACK SEEK (ms) ___________________3.5

       MAX FULL SEEK (ms) _______________________25

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating (Read/Write) __________2

                abnormal ________________________10

                nonoperating ____________________75

       ACOUSTICS (dBa) (typ/max) ________________30/39

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _1.9

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________6.60

                           IDLE _________________2.75

                           STANDBY ______________1.0

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     1/25.4

                        Width  (inches/mm):  4.02/102.1

                        Depth  (inches/mm):  5.77/146.6

                        Weight    (lbs/kg):   1.5/0.68

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       2485 cyl, 16 heads, 63 sectors = 1,282,498,560

                       DOS operating systems may require a system bios

                       that accepts larger values for the CMOS head

                       parameter which lowers cylinders below 1024:

        621 cyl, 64 heads, 63 sectors = 1,281,982,464

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software, system BIOS which supports LBA mode

                       or bios driven host adapters. Otherwise,

                       capacity may be limited to:

       1024 cyl, 16 heads, 63 sectors = 528,482,304 (Master)

       1024 cyl, 16 heads, 63 sectors = 528,482,304 (Slave see Dual

                       Drive emulation jumper)

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/04/95)


ST-31274A
ST-31274A, Filepro 1275 AT (Steamboat CFA1275A)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

 Optional Mini Power

 Power Connector      J2 40 pin I/O Cable Connection

    ÚÄÁÄ¿             ³

    G   5  ÕÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

  Íµ0 0 0ÆÍµ::::::::::ú::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

      12   ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                      ³

                      ÀÄÄÄ pin-20 removed

     ST-31274A

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º              ÚÄÄÄÄ  Compatibility Mode

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼              ³        ATA ON, ISA OFF

                                ³

                                ³ ÚÄÄ  Master ON, Slave OFF (C/D)

                                ³ ³

    (TOP)         o o o o o   o o o1

Option Block   ÍÍÍ  o o o o   o o o2ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

   (BOTTOM)       ÀÄÄÄÂÄÄÄÙ   ³

                      ³       ³

          Reserved ÄÄÄÙ       ³

          Cable Select  ÄÄÄÄÄÄÙ

                             ST-31274A

                 Filepro 1275 AT (Steamboat CFA1275A)

       FORMATTED CAPACITY _______________________1279

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________3659

       HEADS ______PHYSICAL______________________6

       DISCS (3.5 in) ___________________________3

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (Mbits/sec) _______31.3 to 55.3

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 10

       PIO MODE _________________________________3

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________4500

       AVERAGE LATENCY (mSEC) ___________________6.7

       BUFFER ___________________________________256K

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________ATA

       SECTORS PER DRIVE (LBA mode) _____________

       TPI (TRACKS PER INCH) ____________________3833

       BPI (KBITS PER INCH) _____________________77.3K

       AVERAGE ACCESS (ms) ______________________<12

       SINGLE TRACK SEEK (ms) ___________________3

       MAX FULL SEEK (ms) _______________________26

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating (Read/Write) __________5

                abnormal ________________________

                nonoperating ____________________75

       ACOUSTICS (bels) (typ/max) _______________4.3/

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _1.2

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________5.6

                           IDLE _________________3.9

                           STANDBY ______________<1.0

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):  1.00/25.4

                        Width  (inches/mm):  4.00/101.6

                        Depth  (inches/mm):  5.75/146.1

                        Weight    (lbs/kg):   1.3/0.59

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       2479 cyl, 16 heads, 63 sectors = 1,279,401,984

                       DOS operating systems may require a system bios

                       that accepts larger values for the CMOS head

                       parameter which lowers cylinders below 1024:

        619 cyl, 64 heads, 63 sectors = 1,277,853,696

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software, system BIOS which supports LBA mode

                       or bios driven host adapters. Otherwise,

                       capacity may be limited to:

       1024 cyl, 16 heads, 63 sectors = 528,482,304

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (12/18/96)


ST-31275A
ST-31275A, Cabo 1275 AT (Cabo CFS1275A)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

 Optional Mini Power

 Power Connector      J2 40 pin I/O Cable Connection

    ÚÄÁÄ¿             ³

    G   5  ÕÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

  Íµ0 0 0ÆÍµ::::::::::ú::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

      12   ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                      ³

                      ÀÄÄÄ pin-20 removed

     ST-31275A

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º              ÚÄÄÄÄ  Not Used

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼              ³

                                ³ ÚÄÄ  Master ON, Slave OFF (C/D)

                                ³ ³

    (TOP)         o o o o o   o o o1

Option Block   ÍÍÍ  o o o o   o o o2ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

   (BOTTOM)       ÀÄÄÄÂÄÄÄÙ   ³

                      ³       ³

          Reserved ÄÄÄÙ       ³

          Cable Select  ÄÄÄÄÄÄÙ

                             ST-31275A

                     Cabo 1275 AT (Cabo CFS1275A)

       FORMATTED CAPACITY _______________________1275

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________3640

       HEADS ______PHYSICAL______________________6

       DISCS (3.5 in) ___________________________3

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (Mbits/sec) _______29.5 to 54.9

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 16.6

       PIO MODE _________________________________4

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________3600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________64K

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________ATA

       SECTORS PER DRIVE (LBA mode) _____________

       TPI (TRACKS PER INCH) ____________________3849

       BPI (KBITS PER INCH) _____________________77K

       AVERAGE ACCESS (ms) ______________________14

       SINGLE TRACK SEEK (ms) ___________________3

       MAX FULL SEEK (ms) _______________________26

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating (Read/Write) __________5

                abnormal ________________________

                nonoperating ____________________75

       ACOUSTICS (bels) (typ/max) _______________38/

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________3.5

                           IDLE _________________3.5

                           STANDBY ______________<1.0

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):  1.00/25.4

                        Width  (inches/mm):  4.00/101.6

                        Depth  (inches/mm):  5.75/146.1

                        Weight    (lbs/kg):   1.3/0.59

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       2477 cyl, 16 heads, 63 sectors = 1,278,369,792

                       DOS operating systems may require a system bios

                       that accepts larger values for the CMOS head

                       parameter which lowers cylinders below 1024:

        619 cyl, 64 heads, 63 sectors = 1,277,853,696

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software, system BIOS which supports LBA mode

                       or bios driven host adapters. Otherwise,

                       capacity may be limited to:

       1024 cyl, 16 heads, 63 sectors = 528,482,304

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (09/09/96)


ST-31276A
ST-31276A, Medalist 1276 AT (Lapaz CFS1276A)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                   J2  40 pin I/O Cable Connection

                   ³

        ÕÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍ1Í/ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

       Íµ::::::::::ú::::::::1³ : : : ³ 0 0 0 0 ³ÍÍ

        ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍÏÍ³Í³Í³ÍÀÄ5ÄGÄGÄ12Ù    BOTTOM

                   ³           ³ ³ ³

   pin-20 removed ÄÙ           ³ ³ ÀÄÄ Reserved

                               ³ ÃÄÄÄÄ Slave Present (when Master ON)

                               ³ ÀÄÄÄÄ Cable Select (when Slave OFF)

                               ÀÄÄÄÄÄÄ Master ON, Slave OFF

                             ST-31276A

                  Medalist 1276 AT (Lapaz CFS1276A)

       FORMATTED CAPACITY _______________________1280.95

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________4893

       HEADS ______PHYSICAL______________________4

       DISCS (3.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (Mbits/sec) _______33.6 to 67.2

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 16.6

       PIO MODE _________________________________4

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________4500

       AVERAGE LATENCY (mSEC) ___________________6.67

       BUFFER ___________________________________64K

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________ATA

       SECTORS PER DRIVE (LBA mode) _____________2,501,856

       TPI (TRACKS PER INCH) ____________________4973

       BPI (KBITS PER INCH) _____________________88.4

       AVERAGE ACCESS (ms) ______________________12.5

       SINGLE TRACK SEEK (ms) ___________________3

       MAX FULL SEEK (ms) _______________________24

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating (Read/Write) __________5

                abnormal ________________________

                nonoperating ____________________75

       ACOUSTICS (bels) (typ/max) _______________38/

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _1.2

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________4.6

                           IDLE _________________3.5

                           STANDBY ______________1.0

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):  1.00/25.4

                        Width  (inches/mm):  4.00/101.6

                        Depth  (inches/mm):  5.75/146.1

                        Weight    (lbs/kg):   1.3/0.59

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       2482 cyl, 16 heads, 63 sectors = 1,280,950,272

                       DOS operating systems may require a translation

                       that uses larger values for the CMOS head

                       parameter which lowers cylinders below 1024:

        620 cyl, 64 heads, 63 sectors = 1,279,918,080

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software, system BIOS which supports LBA mode

                       or bios driven host adapters. Otherwise,

                       capacity may be limited to:

       1024 cyl, 16 heads, 63 sectors = 528,482,304

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (09/09/96)


ST-3144A

                                                   4-pin DC

                   3-pin DC                        Power

                   Power   ÕÍÍÍÍÍÍÍÍÍÍ ÍÍÍÍÍÍÍÍÍ¸/Ä4Ä3Ä2Ä1Ä\

                 ÍÑÍGÍ12Í5Ñµ::::::::::ù::::::::1Æ³ 0 0 0 0 ÆÍ

                  ³ 0 0 0 ³ÔÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍ¾ÀÄ5ÄGÄGÄ12Ù

                  ÔÍ3Í2Í1Í¾   (pin-20 missing

                               for keying purposes)

                User Configuration Block

              ³ (located behind 3-pin DC)

              ÀÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ

                      ³                                  1= On, 0= Off

(back of drive)    2 o-o 1  ÄÄÄ Life Test (do not use)

                   4 o-o 3  ÄÄÄ Master on (Slave off)ÄÄÄ 1  1  0

                   6 o-o 5  ÄÄÄ Slave Present ÄÄÄÄÄÄÄÄÄÄ 0  1  0

                   8 o-o 7  ÄÄÄ Reserved

(front of drive)  10 o-o 9  ÄÄÄ Active LED               S  M  S

                                                         i  a  l

                                                         n  s  a

                                                         g  t  v

                                                         l  e  e

                                                         e  r

                            ST-3144A

       UNFORMATTED CAPACITY (MB) ________________N/A

       FORMATTED CAPACITY (xx/17 SECTORS) (MB) __130.6

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________

       CYLINDERS __PHYSICAL/LOGICAL______________xx/1,001

       HEADS ______PHYSICAL/LOGICAL______________3/15

       DISCS (3.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7) ZBR

       TRANSFER RATE INTERNAL (mbits/sec) _______10/12/15

       SPINDLE SPEED (RPM) ______________________3,211

       AVERAGE LATENCY (mSEC) ___________________9.34

       BUFFER ___________________________________32 KByte SeaCache

       INTERFACE ________________________________AT BUS

       SECTORS PER DRIVE ________________________255,255

       TPI (TRACKS PER INCH) ____________________1,791

       BPI (BITS PER INCH) ______________________34,600

       AVERAGE ACCESS (ms) ______________________16

       SINGLE TRACK SEEK (ms) ___________________3

       MAX FULL SEEK (ms) _______________________28

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _0.9

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________5.3

                           IDLE _________________2.1

                           STANDBY ______________0.7

                           SLEEP ________________0.7

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     1.00/25.4

                        Width  (inches/mm):     4.02/102.1

                        Depth  (inches/mm):     5.77/146.6

                        Weight   (lbs/kg):      1.3/0.59

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:  1001 cyl, 15 heads, 17 sectors = 130,690,560

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/09/91)


ST-3145A

                                                   4-pin DC

                 TOP                               Power

                           ÕÍÍÍÍÍÍÍÍÍÍ ÍÍÍÍÍÍÍÍÍ¸/Ä4Ä3Ä2Ä1Ä\

                    ÍÍÍÍÍÍÍµ::::::::::ù::::::::1Æ³ 0 0 0 0 ÆÍ

                           ÔÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍ¾ÀÄ5ÄGÄGÄ12Ù

                              (pin-20 missing

                               for keying purposes)

    (back of drive)

                    2o-o1 ÄÄÄÄÄÄÄÄ¿

                     o-o  ÄÄÄÄÄÄ¿ ³

                     o-o  ÄÄÄÄ¿ ³ ³    (Options jumper located on bottom)

                    8o-o7 ÄÄ¿ ³ ³ ³

   (front of drive)         ³ ³ ³ ³

                            ³ ³ ³ ÀÄÄ Master OFF, Slave ON ÄÄÄÄÄ  0  0  1

                            ³ ³ ÀÄÄÄÄ Slave Present ON ÄÄÄÄÄÄÄÄÄ  0  1  0

                            ³ ÀÄÄÄÄÄÄ Factory Test                ³  ³  ³

                            ³          (do not use)               S  M  S

                            ÀÄÄÄÄÄÄÄÄ Reserved                    i  a  l

                                                                  n  s  a

                                                                  g  t  v

                                                                  l  e  e

                                                                  e  r

                             ST-3145A

       UNFORMATTED CAPACITY _____________________

       FORMATTED CAPACITY (xx SECTORS) __________130.2

       AVERAGE SECTORS PER TRACK ________________ rounded down

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________

       CYLINDERS ________________________________(user)

       HEADS _(PHYSICAL)_________________________2

       DISCS (3.5 in) ___________________________1

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______ to 21.1

       SPINDLE SPEED (RPM) ______________________3,811

       AVERAGE LATENCY (mSEC) ___________________7.87

       BUFFER ___________________________________32 Kbyte

        Multisegmented

       INTERFACE ________________________________AT

       BYTES PER TRACK __________________________

       SECTORS PER DRIVE ________________________255,255

       TPI (TRACKS PER INCH) ____________________2,400

       BPI (BITS PER INCH) ______________________42,700

       AVERAGE ACCESS (ms) ______________________16

       SINGLE TRACK SEEK (ms) ___________________5

       MAX FULL SEEK (ms) _______________________32

       MTBF (power-on hours) Office _____________250,000

       POWER REQUIREMENTS: +12V START-UP (amps) _1.0

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________4.6

                           IDLE _________________3.9

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     1.00/25.4

                        Width  (inches/mm):     4.02/102.1

                        Depth  (inches/mm):     5.77/146.6

                        Weight    (lbs/kg):     1.5/0.68

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:  1001 cyl, 15 heads, 17 sectors = 130,690,560

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (05/12/93)


ST-31621A
ST-31621A, Cabo 1621 AT (Cabo Stingray CFS1621A)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

 Optional Mini Power

 Power Connector      J2 40 pin I/O Cable Connection

    ÚÄÁÄ¿             ³

    G   5  ÕÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

  Íµ0 0 0ÆÍµ::::::::::ú::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

      12   ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                      ³

                      ÀÄÄÄ pin-20 removed

     ST-31621A

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º              ÚÄÄÄÄ  Not Used

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼              ³

                                ³ ÚÄÄ  Master ON, Slave OFF (C/D)

                                ³ ³

    (TOP)         o o o o o   o o o1

Option Block   ÍÍÍ  o o o o   o o o2ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

   (BOTTOM)       ÀÄÄÄÂÄÄÄÙ   ³

                      ³       ³

          Reserved ÄÄÄÙ       ³

          Cable Select  ÄÄÄÄÄÄÙ

                             ST-31621A

                   Cabo 1621 AT (Cabo Stingray CFS1621A)

       FORMATTED CAPACITY _______________________1621

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________3924

       HEADS ______PHYSICAL______________________6

       DISCS (3.5 in) ___________________________3

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (Mbits/sec) _______34.5 to 65.2

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 16.6

       PIO MODE _________________________________4

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________3600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________64K

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________ATA

       SECTORS PER DRIVE (LBA mode) _____________

       TPI (TRACKS PER INCH) ____________________4100

       BPI (KBITS PER INCH) _____________________93K

       AVERAGE ACCESS (ms) ______________________14

       SINGLE TRACK SEEK (ms) ___________________3

       MAX FULL SEEK (ms) _______________________26

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating (Read/Write) __________5

                abnormal ________________________

                nonoperating ____________________75

       ACOUSTICS (bels) (typ/max) _______________38/

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________5.6

                           IDLE _________________3.9

                           STANDBY ______________<1.0

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):  1.00/25.4

                        Width  (inches/mm):  4.00/101.6

                        Depth  (inches/mm):  5.75/146.1

                        Weight    (lbs/kg):   1.3/0.59

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       3146 cyl, 16 heads, 63 sectors = 1,623,638,016

                       DOS operating systems may require a system bios

                       that accepts larger values for the CMOS head

                       parameter which lowers cylinders below 1024:

        786 cyl, 64 heads, 63 sectors = 1,622,605,824

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software, system BIOS which supports LBA mode

                       or bios driven host adapters. Otherwise,

                       capacity may be limited to:

       1024 cyl, 16 heads, 63 sectors = 528,482,304

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (09/09/96)


ST-31640A
ST-31640A (Medalist 1640 AT)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

         40 pin I/O Cable Connection

         ³

    J1     ÕÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     ÍÍÍÍÍÍµ::::::::::ú::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

           ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                      ³

                      ÀÄÄÄ pin-20 removed

    ST-31640A

 ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

 º  Front View  º

 ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

                            Slave drive ON (OFF for Master) ÄÄÄÄÄÄ¿

                             Slave Present (used on Master) ÄÄÄÄ¿ ³

                 Master/Slave timing protocol causes Master ÄÄÂÄ´ ³

                  drive to wait up to 31 seconds for slave    ³ ³ ³

    (TOP)         to respond. Must be used with pins 3-4      ³ ³ ³

                                                              ³ ³ ³

                                                        o o o o o o1

Option Block   ÍÍÍÍÍPWAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ12o o o o oÂo2ÍÍ

                                                        ³ ³ ³    ³

  (BOTTOM)                       Remote LED (11-, 12+) ÄÙ ³ ³    ³

                                          Cable Select ÄÄÄÙ ³    ³

                                              Reserved ÄÄÄÄÄÙ    ³

                       Spare jumper stored on pins 2-4 ÄÄÄÄÄÄÄÄÄÄÙ

                             ST-31640A

                             Medalist 1640

       FORMATTED CAPACITY _______________________1625.7

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________4,834

       HEADS ______PHYSICAL______________________6

       DISCS (3.5 in) ___________________________3

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (Mbits/sec) _______34.5 to 67.7

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 16.6

       PIO MODE _________________________________4

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________5,376

       AVERAGE LATENCY (mSEC) ___________________5.58

       BUFFER ___________________________________128/256 Kbyte SeaCache

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________ATA

       SECTORS PER DRIVE (LBA mode) _____________3,175,200

       TPI (TRACKS PER INCH) ____________________4,800

       BPI (KBITS PER INCH) _____________________76.2

       AVERAGE ACCESS (ms) ______________________10

       SINGLE TRACK SEEK (ms) ___________________2.0

       MAX FULL SEEK (ms) _______________________20

       MTBF (power-on hours) Office _____________500,000

       SHOCK (G's):

                operating (Read/Write) __________2

                abnormal ________________________5

                nonoperating ____________________75

       ACOUSTICS (bels) (typ/max) _______________4.1/4.9

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _1.6

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________8.41

                           IDLE _________________4.60

                           STANDBY ______________0.755

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):  1.02/25.4

                        Width  (inches/mm):  4.02/102.1

                        Depth  (inches/mm):  5.78/146.6

                        Weight    (lbs/kg):   1.5/0.68

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       3150 cyl, 16 heads, 63 sectors = 1,625,702,400

                       DOS operating systems may require a system bios

                       that accepts larger values for the CMOS head

                       parameter which lowers cylinders below 1024:

        787 cyl, 64 heads, 63 sectors = 1,624,670,208

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software, system BIOS which supports LBA mode

                       or bios driven host adapters. Otherwise,

                       capacity may be limited to:

       1024 cyl, 16 heads, 63 sectors = 528,482,304

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (02/19/96)


ST-31720A
ST-31720A, Medalist 1720 AT (Belize CFA1700A)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                   J2  40 pin I/O Cable Connection

                   ³

        ÕÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍ1Í/ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

       Íµ::::::::::ú::::::::1³ : : : ³ 0 0 0 0 ³ÍÍ

        ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍÏÍ³Í³Í³ÍÀÄ5ÄGÄGÄ12Ù    BOTTOM

                   ³           ³ ³ ³

   pin-20 removed ÄÙ           ³ ³ ÀÄÄ Reserved

                               ³ ÃÄÄÄÄ Slave Present (when Master ON)

                               ³ ÀÄÄÄÄ Cable Select (when Slave OFF)

                               ÀÄÄÄÄÄÄ Master ON, Slave OFF

                             ST-31720A

                         Medalist 1720 AT

       FORMATTED CAPACITY _______________________1705.69

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________

       HEADS ______PHYSICAL______________________4

       DISCS (3.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR 2/3 (1,7) RLL

       INTERNAL TRANSFER RATE (Mbits/sec) _______up to 88

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 16.6

       PIO MODE _________________________________4

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________4500

       AVERAGE LATENCY (mSEC) ___________________6.67

       BUFFER ___________________________________128K

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________Fast ATA-2

       SECTORS PER DRIVE (LBA mode) _____________3,324,384

       TPI (TRACKS PER INCH) ____________________5,104

       BPI (KBITS PER INCH) _____________________108.77

       AVERAGE ACCESS (ms read/write) ___________12.5/14.5

       SINGLE TRACK SEEK (ms read/write) ________2.5/3.5

       MAX FULL SEEK (ms read/write) ____________24/25

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating (Read/Write) __________5

                abnormal ________________________

                nonoperating ____________________75

       ACOUSTICS (dBA) (typ/max) ________________34/

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _1.4

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________4.9

                           IDLE _________________4.0

                           STANDBY ______________1.0

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                     Height (inches/mm):  1.030/26.16

                     Width  (inches/mm):  4.030/102.36

                     Depth  (inches/mm):  5.785/146.94

                     Weight     (lbs/g):    1.2/544.3

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       3305 cyl, 16 heads, 63 sectors = 1,705,697,280

                       DOS operating systems may require a translation

                       that uses larger values for the CMOS head

                       parameter which lowers cylinders below 1024:

        826 cyl, 64 heads, 63 sectors = 1,705,181,184

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software, system BIOS which supports LBA mode

                       or bios driven host adapters. Otherwise,

                       capacity may be limited to:

       1024 cyl, 16 heads, 63 sectors = 528,482,304

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (12/10/96)


ST-3195A

                                                   4-pin DC

                 TOP                               Power

                           ÕÍÍÍÍÍÍÍÍÍÍ ÍÍÍÍÍÍÍÍÍ¸/Ä4Ä3Ä2Ä1Ä\

                    ÍÍÍÍÍÍÍµ::::::::::ù::::::::1Æ³ 0 0 0 0 ÆÍ

                           ÔÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍ¾ÀÄ5ÄGÄGÄ12Ù

                              (pin-20 missing

                               for keying purposes)

    (back of drive)

                    2o-o1 ÄÄÄÄÄÄÄÄ¿

                     o-o  ÄÄÄÄÄÄ¿ ³

                     o-o  ÄÄÄÄ¿ ³ ³    (Options jumper located on bottom)

                    8o-o7 ÄÄ¿ ³ ³ ³

   (front of drive)         ³ ³ ³ ³

                            ³ ³ ³ ÀÄÄ Master OFF, Slave ON ÄÄÄÄÄ  0  0  1

                            ³ ³ ÀÄÄÄÄ Slave Present ON ÄÄÄÄÄÄÄÄÄ  0  1  0

                            ³ ÀÄÄÄÄÄÄ Factory Test                ³  ³  ³

                            ³          (do not use)               S  M  S

                            ÀÄÄÄÄÄÄÄÄ Reserved                    i  a  l

                                                                  n  s  a

                                                                  g  t  v

                                                                  l  e  e

                                                                  e  r

                             ST-3195A

       UNFORMATTED CAPACITY _____________________

       FORMATTED CAPACITY (xx SECTORS) __________170.7

       AVERAGE SECTORS PER TRACK ________________ rounded down

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________

       CYLINDERS ________________________________(user)

       HEADS _(PHYSICAL)_________________________4

       DISCS (3.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______ to 21.1

       SPINDLE SPEED (RPM) ______________________3,811

       AVERAGE LATENCY (mSEC) ___________________7.87

       BUFFER ___________________________________64 Kbyte

        Multisegmented

       INTERFACE ________________________________AT

       SECTORS PER DRIVE ________________________333,540

       TPI (TRACKS PER INCH) ____________________2,178

       BPI (BITS PER INCH) ______________________38,400

       AREAL DENSITY (MBits/sq in) ______________

       AVERAGE ACCESS (ms) ______________________16

       SINGLE TRACK SEEK (ms) ___________________5

       MAX FULL SEEK (ms) _______________________32

       MTBF (power-on hours) Office _____________250,000

       POWER REQUIREMENTS: +12V START-UP (amps) _1.0

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________4.6

                           IDLE _________________3.9

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     1.00/25.4

                        Width  (inches/mm):     4.02/102.1

                        Depth  (inches/mm):     5.77/146.6

                        Weight    (lbs/kg):     1.5/0.68

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:  981 cyl, 10 heads, 34 sectors = 170,772,480

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (06/22/93)


ST-3211A
ST-3211A, Filepro 210 AT (Bobcat CFS210A)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

 Optional Mini Power

 Power Connector      J2 40 pin I/O Cable Connection

    ÚÄÁÄ¿             ³

    G   5  ÕÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

  Íµ0 0 0ÆÍµ::::::::::ú::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

      12   ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                      ³

                      ÀÄÄÄ pin-20 removed

     ST-3211A

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º              ÚÄÄÄÄ  Compatibility Mode

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼              ³        ATA ON, ISA OFF

                                ³

                                ³ ÚÄÄ  Master ON, Slave OFF (C/D)

                                ³ ³

    (TOP)         o o o o o   o o o1

Option Block   ÍÍÍ  o o o o   o o o2ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

   (BOTTOM)       ÀÄÄÄÂÄÄÄÙ   ³

                      ³       ³

          Reserved ÄÄÄÙ       ³

              Reserved  ÄÄÄÄÄÄÙ

                             ST-3211A

                    Filepro 210 AT (Bobcat CFS210A)

       FORMATTED CAPACITY _______________________213.4

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________2388

       HEADS ______PHYSICAL______________________2

       DISCS (3.5 in) ___________________________1

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (Mbits/sec) _______20 to 32

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 7.5

       PIO MODE _________________________________

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________3600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________32K

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________ATA

       SECTORS PER DRIVE (LBA mode) _____________

       TPI (TRACKS PER INCH) ____________________2774

       BPI (KBITS PER INCH) _____________________58,566

       AVERAGE ACCESS (ms) ______________________14

       SINGLE TRACK SEEK (ms) ___________________3

       MAX FULL SEEK (ms) _______________________25

       MTBF (power-on hours) Office _____________250,000

       SHOCK (G's):

                operating (Read/Write) __________5

                abnormal ________________________

                nonoperating ____________________75

       ACOUSTICS (bels) (typ/max) _______________43/

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _1.2

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________5.7

                           IDLE _________________3.8

                           STANDBY ______________1.9

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):  1.00/25.4

                        Width  (inches/mm):  4.00/101.6

                        Depth  (inches/mm):  5.75/146.1

                        Weight    (lbs/kg):   1.0/0.45

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations: 685 cyl, 16 heads, 38 sectors = 213,237,760

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (02/21/96)


ST-32132A
ST-32132A (Medalist 2132 AT)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

  J2 40 pin I/O Cable Connection

                   ³              Ú Ä Spare jumper stored on pins 1-3

                   ³              ³

        ÕÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍ1Í/ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

       Íµ::::::::::ú::::::::1³ : :Á: ³ 0 0 0 0 ³ÍÍ

        ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍÏÍ³Í³Í³ÍÀÄ5ÄGÄGÄ12Ù    BOTTOM

                   ³           ³ ³ ³

   pin-20 removed ÄÙ           ³ ³ ÀÄÄ Diagnostics (when Master ON)

                               ³ ÃÄÄÄÄ Slave Present (when Master ON)

                               ³ ÀÄÄÄÄ Cable Select (when Slave OFF)

                               ÀÄÄÄÄÄÄ Master ON, Slave OFF

                             ST-32132A

                         Medalist 2132 AT

       FORMATTED CAPACITY _______________________2113.41

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________

       HEADS ______PHYSICAL______________________6

       DISCS (3.5 in) ___________________________3

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR PRML (0,12,8)

       INTERNAL TRANSFER RATE (Mbits/sec) _______35 to 68

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 16.6

       PIO MODE _________________________________4

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________4504

       AVERAGE LATENCY (mSEC) ___________________6.66

       BUFFER ___________________________________128K

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________Fast ATA-3

       SECTORS PER DRIVE (LBA mode) _____________4,127,760

       TPI (TRACKS PER INCH) ____________________5435

       BPI (KBITS PER INCH) _____________________89

       AVERAGE ACCESS (ms) ______________________12.5

       SINGLE TRACK SEEK (ms) ___________________2.5

       MAX FULL SEEK (ms) _______________________30

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating (Read/Write) __________2

                abnormal ________________________

                nonoperating ____________________75

       ACOUSTICS (dBA) (typ/max) _______________30/

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _1.26

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________5.58

                           IDLE _________________2.78

                           STANDBY ______________0.74

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):  1.00/25.4

                        Width  (inches/mm):  4.00/101.6

                        Depth  (inches/mm):  5.75/146.1

                        Weight    (lbs/kg):   1.25/0.57

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       4095 cyl, 16 heads, 63 sectors = 2,113,413,120

                       DOS operating systems may require a translation

                       that uses larger values for the CMOS head

                       parameter which lowers cylinders below 1024:

       1023 cyl,  64 heads, 63 sectors = 2,111,864,832

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software, system BIOS which supports LBA mode

                       or bios driven host adapters. Otherwise,

                       capacity may be limited to:

       1024 cyl, 16 heads, 63 sectors = 528,482,304

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/07/96)


ST-32140A
ST-32140A (Medalist 2140 AT)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

         40 pin I/O Cable Connection

         ³

    J1     ÕÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     ÍÍÍÍÍÍµ::::::::::ú::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

           ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                      ³

                      ÀÄÄÄ pin-20 removed

    ST-32140A

 ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

 º  Front View  º

 ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

                            Slave drive ON (OFF for Master) ÄÄÄÄÄÄ¿

                             Slave Present (used on Master) ÄÄÄÄ¿ ³

                 Master/Slave timing protocol causes Master ÄÄÂÄ´ ³

                  drive to wait up to 31 seconds for slave    ³ ³ ³

    (TOP)         to respond. Must be used with pins 3-4      ³ ³ ³

                                                              ³ ³ ³

                                                        o o o o o o1

Option Block   ÍÍÍÍÍPWAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ12o o o o oÂo2ÍÍ

                                                        ³ ³ ³    ³

  (BOTTOM)                       Remote LED (11-, 12+) ÄÙ ³ ³    ³

                                          Cable Select ÄÄÄÙ ³    ³

                                              Reserved ÄÄÄÄÄÙ    ³

                       Spare jumper stored on pins 2-4 ÄÄÄÄÄÄÄÄÄÄÙ

                             ST-32140A

                             Medalist 2140

       FORMATTED CAPACITY _______________________2113.4

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________4,726

       HEADS ______PHYSICAL______________________8

       DISCS (3.5 in) ___________________________4

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (Mbits/sec) _______34.5 to 67.7

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 16.6

       PIO MODE _________________________________4

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________5,376

       AVERAGE LATENCY (mSEC) ___________________5.58

       BUFFER ___________________________________128/256 Kbyte SeaCache

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________ATA

       SECTORS PER DRIVE (LBA mode) _____________4,127,760

       TPI (TRACKS PER INCH) ____________________4,800

       BPI (KBITS PER INCH) _____________________76.2

       AVERAGE ACCESS (ms) ______________________10

       SINGLE TRACK SEEK (ms) ___________________2.0

       MAX FULL SEEK (ms) _______________________20

       MTBF (power-on hours) Office _____________500,000

       SHOCK (G's):

                operating (Read/Write) __________2

                abnormal ________________________5

                nonoperating ____________________75

       ACOUSTICS (bels) (typ/max) _______________4.1/4.9

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _1.6

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________8.41

                           IDLE _________________4.60

                           STANDBY ______________0.755

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):  1.02/25.4

                        Width  (inches/mm):  4.02/102.1

                        Depth  (inches/mm):  5.78/146.6

                        Weight    (lbs/kg):   1.5/0.68

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       4095 cyl, 16 heads, 63 sectors = 2,113,413,120

                       DOS operating systems may require a system bios

                       that accepts larger values for the CMOS head

                       parameter which lowers cylinders below 1024:

       1023 cyl, 64 heads, 63 sectors = 2,111,864,832

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software, system BIOS which supports LBA mode

                       or bios driven host adapters. Otherwise,

                       capacity may be limited to:

       1024 cyl, 16 heads, 63 sectors = 528,482,304

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (02/19/96)


ST-32161A
ST-32161A, Ajax 2161 AT (Ajax CFA2161A)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                      J2  40 pin I/O Cable Connection

                      ³

           ÕÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

  ÍÍÍÍÍÍÍÍÍµ::::::::::ú::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

           ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                      ³

                      ÀÄÄÄ pin-20 removed

     ST-32161A

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º              ÚÄÄÄÄ  Capacity Jumper

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼              ³       ON  = 4095 cylinders (default)

                                ³       OFF = 4160 cylinders

                                ³ ÚÄÄ  Master ON, Slave OFF (C/D)

                                ³ ³

    (TOP)         o o o o o   o o o1

Option Block   ÍÍÍ  o o o o   o o o2ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

   (BOTTOM)       ÀÄÄÄÂÄÄÄÙ   ³

                      ³       ³

          Reserved ÄÄÄÙ       ³

          Cable Select  ÄÄÄÄÄÄÙ

                             ST-32161A

                  Filepro 2161 AT (Ajax CFA2161A)

       FORMATTED CAPACITY _______________________2146.9

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________4474

       HEADS ______PHYSICAL______________________8

       DISCS (3.5 in) ___________________________4

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (Mbits/sec) _______up to 70

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 16.6

       PIO MODE _________________________________4

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________5400

       AVERAGE LATENCY (mSEC) ___________________5.55

       BUFFER ___________________________________128K

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________ATA

       SECTORS PER DRIVE (LBA mode) _____________

       TPI (TRACKS PER INCH) ____________________4800

       BPI (KBITS PER INCH) _____________________77.9K

       AVERAGE ACCESS (ms) ______________________10.5

       SINGLE TRACK SEEK (ms) ___________________2.5

       MAX FULL SEEK (ms) _______________________22.5

       MTBF (power-on hours) Office _____________500,000

       SHOCK (G's):

                operating (Read/Write) __________5

                abnormal ________________________

                nonoperating ____________________75

       ACOUSTICS (bels) (typ/max) _______________4.0/

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _1.8

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________8.75

                           IDLE _________________5

                           STANDBY ______________1

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):  1.00/25.4

                        Width  (inches/mm):  4.00/101.6

                        Depth  (inches/mm):  5.75/146.1

                        Weight    (lbs/kg):   1.4/0.64

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Some systems BIOS have a 2.113GB or 4095 cylinder limitation and, if

exceeded, may cause the system to fail or lock up during POST.

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       4095 cyl, 16 heads, 63 sectors = 2,113,413,120 with Cap jumper ON

       4160 cyl, 16 heads, 63 sectors = 2,146,959,360 with Cap jumper OFF

                       DOS operating systems may require a translation

                       that uses larger values for the CMOS head

                       parameter which lowers cylinders below 1024:

       1023 cyl,  64 heads, 63 sectors = 2,111,864,832 with Cap jumper ON

        520 cyl, 128 heads, 63 sectors = 2,146,959,360 with Cap jumper OFF

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software, system BIOS which supports LBA mode

                       or bios driven host adapters. Otherwise,

                       capacity may be limited to:

       1024 cyl, 16 heads, 63 sectors = 528,482,304

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (06/17/96)


ST-3240A

                                 TOP               4-pin DC

                                                   Power

                           ÕÍÍÍÍÍÍÍÍÍÍ ÍÍÍÍÍÍÍÍÍ¸/Ä4Ä3Ä2Ä1Ä\

                 ÍÍÍÍÍÍÍÍÍÍµ::::::::::ù::::::::1Æ³ 0 0 0 0 ÆÍ

                           ÔÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍ¾ÀÄ5ÄGÄGÄ12Ù

                              (pin-20 missing

                               for keying purposes)

    (Options jumper located on bottom)            (back of drive)

       Master OFF, Slave ON  ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 8o-o7  ÄÄÄÄÄÄÄÄÄÄÄÄÄÄ  0  0  1

       Slave Present ON (standard) ÄÄÄÄÄÄÄÄÄ  o-o   ÄÄÄÄÄÄÄÄÄÄÄÄÄÄ  0  1  0

                                  ÚÄÄÄ - - -  o-o                   ³  ³  ³

       Cable Select ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ ÚÄ Ä Ä Ä 2o-o1                  S  M  S

       Slave Present ON for ÄÄÄÄÄÄÄÄÙ            (front of drive)   i  a  l

        drives that don't have                                      n  s  a

        the -DASP signal (use                                       g  t  v

        only ONE of the Slave                                       l  e  e

        Present choices)                                            e  r

                             ST-3240A

       FORMATTED CAPACITY (xx SECTORS) __________210.9

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________

       CYLINDERS ________________________________(user)

       HEADS _(PHYSICAL)_________________________2

       DISCS (3.5 in) ___________________________1

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______18.7 to 32

       EXTERNAL TRANSFER RATE (mbytes/sec) ______11.1

       SPINDLE SPEED (RPM) ______________________3,811

       AVERAGE LATENCY (mSEC) ___________________7.87

       BUFFER ___________________________________120 Kbyte

        Multisegmented, SeaCache

       INTERFACE ________________________________AT

       SECTORS PER DRIVE ________________________412,080

       TPI (TRACKS PER INCH) ____________________

       BPI (BITS PER INCH) ______________________

       FCI (FLUX CHANGES PER INCH) ______________

       AVERAGE ACCESS (ms) ______________________15

       SINGLE TRACK SEEK (ms) ___________________5

       MAX FULL SEEK (ms) _______________________32

       MTBF (power-on hours) Office _____________300,000

       POWER REQUIREMENTS: +12V START-UP (amps) _1.0

                            +5V START-UP (amps) _0.30

                                START-UP (watts)_7.50

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________4.4

                           IDLE _________________1.8

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     1.00/25.4

                        Width  (inches/mm):     4.02/102.1

                        Depth  (inches/mm):     5.77/146.6

                        Weight    (lbs/kg):     1.3/0.59

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:  1010 cyl, 12 heads, 34 sectors = 210,984,960

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (08/17/94)


ST-3243A

                                                   4-pin DC

                 TOP                               Power

                           ÕÍÍÍÍÍÍÍÍÍÍ ÍÍÍÍÍÍÍÍÍ¸/Ä4Ä3Ä2Ä1Ä\

                    ÍÍÍÍÍÍÍµ::::::::::ù::::::::1Æ³ 0 0 0 0 ÆÍ

                           ÔÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍ¾ÀÄ5ÄGÄGÄ12Ù

                              (pin-20 missing

                               for keying purposes)

    (back of drive)

                    2o-o1 ÄÄÄÄÄÄÄÄ¿

                     o-o  ÄÄÄÄÄÄ¿ ³

                     o-o  ÄÄÄÄ¿ ³ ³    (Options jumper located on bottom)

                    8o-o7 ÄÄ¿ ³ ³ ³

   (front of drive)         ³ ³ ³ ³

                            ³ ³ ³ ÀÄÄ Master OFF, Slave ON ÄÄÄÄÄ  0  0  1

                            ³ ³ ÀÄÄÄÄ Slave Present ON ÄÄÄÄÄÄÄÄÄ  0  1  0

                            ³ ÀÄÄÄÄÄÄ Factory Test                ³  ³  ³

                            ³          (do not use)               S  M  S

                            ÀÄÄÄÄÄÄÄÄ Reserved                    i  a  l

                                                                  n  s  a

                                                                  g  t  v

                                                                  l  e  e

                                                                  e  r

                             ST-3243A

       UNFORMATTED CAPACITY _____________________

       FORMATTED CAPACITY (xx SECTORS) __________213.9

       AVERAGE SECTORS PER TRACK ________________ rounded down

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________

       CYLINDERS ________________________________(user)

       HEADS _(PHYSICAL)_________________________4

       DISCS (3.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______ to 21.1

       SPINDLE SPEED (RPM) ______________________3,811

       AVERAGE LATENCY (mSEC) ___________________7.87

       BUFFER ___________________________________32 Kbyte

        Multisegmented (optional 64K)

       INTERFACE ________________________________AT

       SECTORS PER DRIVE ________________________417,792

       TPI (TRACKS PER INCH) ____________________2,178

       BPI (BITS PER INCH) ______________________38,400

       AREAL DENSITY (MBits/sq in) ______________

       AVERAGE ACCESS (ms) ______________________16

       SINGLE TRACK SEEK (ms) ___________________5

       MAX FULL SEEK (ms) _______________________32

       MTBF (power-on hours) Office _____________250,000

       POWER REQUIREMENTS: +12V START-UP (amps) _1.0

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________4.6

                           IDLE _________________3.9

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     1.00/25.4

                        Width  (inches/mm):     4.02/102.1

                        Depth  (inches/mm):     5.77/146.6

                        Weight    (lbs/kg):     1.5/0.68

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:  1024 cyl, 12 heads, 34 sectors = 213,909,504

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (05/12/93)


ST-325AX
ST-325A/X

Select a configuration block version for jumpers

     Jumpers for 12 pin version  Jumpers for 18 pin version

                        ST - 325A/X

       UNFORMATTED CAPACITY (MB) ________________25

       FORMATTED CAPACITY (17 SECTORS) (MB) _____21.4

       AVERAGE SECTORS PER TRACK ________________

       ACTUATOR TYPE ____________________________STEPPER

       TRACKS ___________________________________

       CYLINDERS _(Physical/Logical)_____________xx/615

       HEADS ____________________________________2/4

       DISCS ____________________________________1

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL 2,7 (ZBR)

       INTERNAL TRANSFER RATE (mbits/sec) _______12/14

       SPINDLE SPEED (RPM) ______________________3,048

       INTERFACE ________________________________AT/XT

       TPI (TRACKS PER INCH) ____________________1290

       BPI (BITS PER INCH) ______________________28155/28922

       AVERAGE ACCESS (ms) ______________________28

       SINGLE TRACK SEEK (ms) ___________________7

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _0.8

                           +12V TYPICAL (amps) __0.10

                           +5V TYPICAL (amps) ___0.11

                           TYPICAL (watts) ______2.0

                           MAXIMUM (watts) ______

       BUFFERED STEP PULSE RATE (micro sec) _____

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl)________________________AUTO PARK

       IBM AT DRIVE TYPE ________________________6

Possible translation:   615 cyl, 4 heads, 17 sectors = 21,411,840

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

 * CHECK TO SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE"

DRIVE TYPE AVAILABLE. (see below)

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory for AT installations.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (5/6/91)


ST-3250A
ST-3250A (Medalist 210xe)

                                 TOP               4-pin DC

                                                   Power

                           ÕÍÍÍÍÍÍÍÍÍÍ ÍÍÍÍÍÍÍÍÍ¸/Ä4Ä3Ä2Ä1Ä\

                 ÍÍÍÍÍÍÍÍÍÍµ::::::::::ù::::::::1Æ³ 0 0 0 0 ÆÍ

                           ÔÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍ¾ÀÄ5ÄGÄGÄ12Ù

                              (pin-20 missing

                               for keying purposes)

    (Options jumper located on bottom)            (back of drive)

       Master OFF, Slave ON  ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 8o-o7  ÄÄÄÄÄÄÄÄÄÄÄÄÄÄ  0  0  1

       Slave Present ON (standard) ÄÄÄÄÄÄÄÄÄ  o-o   ÄÄÄÄÄÄÄÄÄÄÄÄÄÄ  0  1  0

                                  ÚÄÄÄ - - -  o-o                   ³  ³  ³

       Cable Select ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ ÚÄ Ä Ä Ä 2o-o1                  S  M  S

       Slave Present ON for ÄÄÄÄÄÄÄÄÙ            (front of drive)   i  a  l

        drives that don't have                                      n  s  a

        the -DASP signal (use                                       g  t  v

        only ONE of the Slave                                       l  e  e

        Present choices)                                            e  r

                             ST-3250A

                             Medalist 210xe

       UNFORMATTED CAPACITY _____________________

       FORMATTED CAPACITY (xx SECTORS) __________213.9

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________

       CYLINDERS ________________________________(user)

       HEADS _(PHYSICAL)_________________________2

       DISCS (3.5 in) ___________________________1

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______18.7 to 32

       EXTERNAL TRANSFER RATE (mbytes/sec) ______11.1

       SPINDLE SPEED (RPM) ______________________3,811

       AVERAGE LATENCY (mSEC) ___________________7.87

       BUFFER ___________________________________120 Kbyte

        Multisegmented, SeaCache

       INTERFACE ________________________________AT

       SECTORS PER DRIVE ________________________417,792

       TPI (TRACKS PER INCH) ____________________3,081

       BPI (BITS PER INCH) ______________________55,200

       FCI (FLUX CHANGES PER INCH) ______________41,400

       AVERAGE ACCESS (ms) ______________________15

       SINGLE TRACK SEEK (ms) ___________________5

       MAX FULL SEEK (ms) _______________________32

       MTBF (power-on hours) Office _____________300,000

       POWER REQUIREMENTS: +12V START-UP (amps) _1.0

                            +5V START-UP (amps) _0.30

                                START-UP (watts)_7.50

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________4.4

                           IDLE _________________1.8

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     1.00/25.4

                        Width  (inches/mm):     4.02/102.1

                        Depth  (inches/mm):     5.77/146.6

                        Weight    (lbs/kg):     1.3/0.59

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:  1024 cyl, 12 heads, 34 sectors = 213,909,504

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (02/24/94)


ST-32531A
ST-32531A (Medalist 2531 AT)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                   J2  40 pin I/O Cable Connection

                   ³

        ÕÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍ1Í/ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

       Íµ::::::::::ú::::::::1³ : : : ³ 0 0 0 0 ³ÍÍ

        ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍÏÍ³Í³Í³ÍÀÄ5ÄGÄGÄ12Ù    BOTTOM

                   ³           ³ ³ ³

   pin-20 removed ÄÙ           ³ ³ ÀÄÄ Reserved

                               ³ ÃÄÄÄÄ Slave Present (when Master ON)

                               ³ ÀÄÄÄÄ Cable Select (when Slave OFF)

               o o1            ÀÄÄÄÄÄÄ Master ON, Slave OFF

               o o2

               ³ ³

               ³ ÀÄÄ Full capacity (as shipped)

               ÀÄÄÄÄ Limit capacity to 2.1 Gbytes (4092 cylinders)

   Limit Capacity jumper sets the default cylinder translation

to 4092 to solve issues with certain BIOS that only auto-detect.

Total available sectors are still at full capacity as reported via

Identify Drive data words 52 - 61.  Third party partitioning software

may be needed to achieve full capacity if this option jumper is used.

                             ST-32531A

                         Medalist 2531 AT

       FORMATTED CAPACITY _______________________2557

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________

       HEADS ______PHYSICAL______________________6

       DISCS (3.5 in) ___________________________3

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR 2/3 (1,7)RLL

       INTERNAL TRANSFER RATE (Mbits/sec) _______up to 88

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 16.6

       PIO MODE _________________________________4

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________4500

       AVERAGE LATENCY (mSEC) ___________________6.67

       BUFFER ___________________________________128K

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________Fast ATA-2

       SECTORS PER DRIVE (LBA mode) _____________4,995,648

       TPI (TRACKS PER INCH) ____________________5104

       BPI (KBITS PER INCH) _____________________108.7

       AVERAGE ACCESS (ms read/write) ___________12.5/14.5

       SINGLE TRACK SEEK (ms read/write) ________2.5/3.5

       MAX FULL SEEK (msread/write) _____________24/25

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating (Read/Write) __________5

                abnormal ________________________

                nonoperating ____________________75

       ACOUSTICS (dBA) (typ/max) _______________34/

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _1.6

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________5.6

                           IDLE _________________4.5

                           STANDBY ______________1.0

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                    Height (inches/mm):   1.03/26.16

                    Width  (inches/mm):   4.03/102.36

                    Depth  (inches/mm):  5.785/146.94

                    Weight     (lbs/g):    1.4/567.5

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       4956 cyl, 16 heads, 63 sectors = 2,557,771,776

                       DOS operating systems may require a translation

                       that uses larger values for the CMOS head

                       parameter which lowers cylinders below 1024:

       619 cyl, 128 heads, 63 sectors = 2,555,707,392

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software, system BIOS which supports LBA mode

                       or bios driven host adapters. Otherwise,

                       capacity may be limited to:

       1024 cyl, 16 heads, 63 sectors = 528,482,304

Some systems BIOS have capacity limitations.

Types that have been identified are:

     a 2.113GB or 4095 cylinder limitation

     a 3.262GB or 6322 cylinder limitation

and, if exceeded, may cause the system to hang during boot, or

it can truncate or wrap the cylinders when auto-detect options

set in the CMOS.

DOS cannot access more than 2.147 Gbytes per partition.  Create

two partitions to access the drive's full capacity.

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (12/18/96)


ST-3270A
ST-3270A, Filepro 270 AT (Cabo CFS270A)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

            J2  40 pin I/O        Optional Mini Power

            Cable Connection      Power Connector

                      ³            ÚÄÁÄ¿

           ÕÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍ¸  G   5  /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

          Íµ::::::::::ú::::::::1ÆÍµ0 0 0ÆÍ³ 0 0 0 0 ³ÍÍ

           ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍ¾    12   ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                      ³

                      ÀÄÄÄ pin-20 removed

     ST-3270A

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼            ÚÄÄÄÄ  Not Used

                              ³

                              ³ ÚÄÄ  Master ON, Slave OFF (C/D)

                              ³ ³

    (TOP)         o o o o   o o o1

Option Block   ÍÍÍo o o o   o o o2ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

   (BOTTOM)       ÀÄÄÄÂÄÙ   ³

                      ³     ³

          Reserved ÄÄÄÙ     ³

          Cable Select  ÄÄÄÄÙ

                             ST-3270A

                    Filepro 270 AT (Cabo CFS270A)

       FORMATTED CAPACITY _______________________270.95

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________2595

       HEADS ______PHYSICAL______________________2

       DISCS (3.5 in) ___________________________1

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (Mbits/sec) _______20 to 32.5

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 13

       PIO MODE _________________________________3

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________3400

       AVERAGE LATENCY (mSEC) ___________________8.8

       BUFFER ___________________________________32K

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________ATA

       SECTORS PER DRIVE (LBA mode) _____________

       TPI (TRACKS PER INCH) ____________________2988

       BPI (KBITS PER INCH) _____________________68K

       AVERAGE ACCESS (ms) ______________________<15

       SINGLE TRACK SEEK (ms) ___________________3

       MAX FULL SEEK (ms) _______________________24

       MTBF (power-on hours) Office _____________250,000

       SHOCK (G's):

                operating (Read/Write) __________5

                abnormal ________________________

                nonoperating ____________________75

       ACOUSTICS (bels) (typ/max) _______________34/

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _1.2

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________5.7

                           IDLE _________________3.8

                           STANDBY ______________<1.0

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):  1.00/25.4

                        Width  (inches/mm):  4.00/101.6

                        Depth  (inches/mm):  5.75/146.1

                        Weight    (lbs/kg):   1.1/0.50

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations:  600 cyl, 14 heads, 63 sectors = 270,950,400

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (02/21/96)


ST-3271A
ST-3271A, Filepro 270 AT (Filepro 270, CFA270A)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                      J2  40 pin I/O Cable Connection

                      ³

           ÕÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

  ÍÍÍÍÍÍÍÍÍµ::::::::::ú::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

           ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                      ³

                      ÀÄÄÄ pin-20 removed

     ST-3271A

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º              ÚÄÄÄÄ  Compatibility Mode

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼              ³        ATA ON, ISA OFF

                                ³

                                ³ ÚÄÄ  Master ON, Slave OFF (C/D)

                                ³ ³

    (TOP)         o o o o o   o o o1

Option Block   ÍÍÍ  o o o o   o o o2ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

   (BOTTOM)       ÀÄÄÄÂÄÄÄÙ   ³

                      ³       ³

          Reserved ÄÄÄÙ       ³

              Reserved  ÄÄÄÄÄÄÙ

                             ST-3271A

               Filepro 270 AT (Filepro 270, CFA270A)

       FORMATTED CAPACITY _______________________265.11

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________2805

       HEADS ______PHYSICAL______________________2

       DISCS (3.5 in) ___________________________1

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (Mbits/sec) _______27 to 46

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 11.1

       PIO MODE _________________________________2

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________4500

       AVERAGE LATENCY (mSEC) ___________________6.7

       BUFFER ___________________________________256K

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________ATA

       SECTORS PER DRIVE (LBA mode) _____________

       TPI (TRACKS PER INCH) ____________________3258

       BPI (KBITS PER INCH) _____________________63K

       AVERAGE ACCESS (ms) ______________________10.5

       SINGLE TRACK SEEK (ms) ___________________3

       MAX FULL SEEK (ms) _______________________26

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating (Read/Write) __________5

                abnormal ________________________

                nonoperating ____________________75

       ACOUSTICS (bels) (typ/max) _______________43/

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _1.2

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________8.0

                           IDLE _________________3.9

                           STANDBY ______________1.8

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):  1.00/25.4

                        Width  (inches/mm):  4.00/101.6

                        Depth  (inches/mm):  5.75/146.1

                        Weight    (lbs/kg):   1.2/0.54

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations: 977 cyl, 10 heads, 53 sectors = 265,118,720

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (02/21/96)


ST-3283A

Rear View

       Mini Power      ÚÄ 40 pin AT Interface I/O connector

        Connector      ³

            ÚÄÁÄ¿      ³  (TOP)             DC power

      ³o o³ 5   G  ÕÍÍÍÍÍÍÍÍÍÍ ÍÍÍÍÍÍÍÍÍ¸ /Ä5ÄGÄGÄ12\

     Íµo oÆµ0 0 0ÆÍµ::::::::::ú::::::::1ÆÍµ 0 0 0 0 ÆÍ     ...Ä¿

       ³ ³    12   ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍ¾ ÀÄÄÄÄÄÄÄÄÄÙ          ³

       ³ ³         (BOTTOM)   À(pin 20 missing for    (Factory test jumper

       ³ ³                      keying purposes)        block located at side)

       ³ ³

     OFF OFF  Drive is Master (single)

     OFF ON   Drive is Master with Slave present (dual)

     ON  OFF  Drive is Slave (dual)

ST-3283A                  ÚÄÄÄÄÄÄÄÄ Spindle Clock to I/O pin-28

Front View                ³ ÚÄÄÄÄÄÄ Ext. Spindle Clock Synch

                          8 ³          (see note below)

     (TOP)          o o o o-o o o+

               ÍÍÍÍ o Í o o o o o-ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

     (BOTTOM)      1ÀÄÄÄÂÄÙ ³ ³ ³

                        ³   ³ ³ ÀÄÄ Remote LED

                        ³   ³ ÀÄÄÄÄ Reserved

                        ³   ÀÄÄÄÄÄÄ Clock Ground for Ext. SPSYNC

                        ³         Ú Reserved

                        ÀÄÄÄÄÄÄÄÄÄ´ Reserved

                                  ³ Reserved pin-3 removed for key

                                  À Reserved

 Spindle Sync note: Enable pin-28 (SPSYNC-) of the AT interface connector

                    by installing a jumper on pins 8 and 10 of the options

                    jumper block.

                    Connect a twisted pair to pins 9 and 10 of the options

                    jumper block to transmit and receive SPSYNC-.

                             ST-3283A

       UNFORMATTED CAPACITY _____________________

       FORMATTED CAPACITY (xx SECTORS) __________245.36

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL/LOGICAL______________

       HEADS ______PHYSICAL/LOGICAL______________5

       DISCS (3.5 in) ___________________________3

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______15.01 to 24.50

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________4,500

       AVERAGE LATENCY (mSEC) ___________________6.67

       BUFFER ___________________________________128 Kbyte SeaCache

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________AT

       SECTORS PER DRIVE ________________________479,220

       BYTES PER CYLINDER _______________________

       TPI (TRACKS PER INCH) ____________________1,960

       BPI (BITS PER INCH) ______________________38,000

       AVERAGE ACCESS (ms) ______________________12

       SINGLE TRACK SEEK (ms) ___________________<4

       MAX FULL SEEK (ms) _______________________32

       MTBF (power-on hours) Office _____________200,000

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _1.9

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________5.5

                           IDLE _________________2.75

                           STANDBY ______________0.66

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     1.00/25.4

                        Width  (inches/mm):     4.02/102.1

                        Depth  (inches/mm):     5.77/146.6

                        Weight    (lbs/kg):     1.5/0.68

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:  978 cyl, 14 heads, 35 sectors = 245,360,640

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (03/30/93)


ST-3290A

                                                   4-pin DC

                 TOP                               Power

                           ÕÍÍÍÍÍÍÍÍÍÍ ÍÍÍÍÍÍÍÍÍ¸/Ä4Ä3Ä2Ä1Ä\

                    ÍÍÍÍÍÍÍµ::::::::::ù::::::::1Æ³ 0 0 0 0 ÆÍ

                           ÔÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍ¾ÀÄ5ÄGÄGÄ12Ù

                              (pin-20 missing

                               for keying purposes)

    (back of drive)

                    2o-o1 ÄÄÄÄÄÄÄÄ¿

                     o-o  ÄÄÄÄÄÄ¿ ³

                     o-o  ÄÄÄÄ¿ ³ ³    (Options jumper located on bottom)

                    8o-o7 ÄÄ¿ ³ ³ ³

   (front of drive)         ³ ³ ³ ³

                            ³ ³ ³ ÀÄÄ Master OFF, Slave ON ÄÄÄÄÄ  0  0  1

                            ³ ³ ÀÄÄÄÄ Slave Present ON ÄÄÄÄÄÄÄÄÄ  0  1  0

                            ³ ÀÄÄÄÄÄÄ Factory Test                ³  ³  ³

                            ³          (do not use)               S  M  S

                            ÀÄÄÄÄÄÄÄÄ Reserved                    i  a  l

                                                                  n  s  a

                                                                  g  t  v

                                                                  l  e  e

                                                                  e  r

                             ST-3290A

       UNFORMATTED CAPACITY _____________________

       FORMATTED CAPACITY (xx SECTORS) __________260.8

       AVERAGE SECTORS PER TRACK ________________ rounded down

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________

       CYLINDERS ________________________________(user)

       HEADS _(PHYSICAL)_________________________4

       DISCS (3.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______ to 21.1

       SPINDLE SPEED (RPM) ______________________3,811

       AVERAGE LATENCY (mSEC) ___________________7.87

       BUFFER ___________________________________64 Kbyte

        Multisegmented

       INTERFACE ________________________________AT

       SECTORS PER DRIVE ________________________510,510

       TPI (TRACKS PER INCH) ____________________2,178

       BPI (BITS PER INCH) ______________________38,400

       AREAL DENSITY (MBits/sq in) ______________

       AVERAGE ACCESS (ms) ______________________16

       SINGLE TRACK SEEK (ms) ___________________5

       MAX FULL SEEK (ms) _______________________32

       MTBF (power-on hours) Office _____________250,000

       POWER REQUIREMENTS: +12V START-UP (amps) _1.0

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________4.6

                           IDLE _________________3.9

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     1.00/25.4

                        Width  (inches/mm):     4.02/102.1

                        Depth  (inches/mm):     5.77/146.6

                        Weight    (lbs/kg):     1.5/0.68

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:  1001 cyl, 15 heads, 34 sectors = 261,381,120

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (05/12/93)


ST-3291A
ST-3291A (Medalist 270xe)

                                 TOP               4-pin DC

                                                   Power

                           ÕÍÍÍÍÍÍÍÍÍÍ ÍÍÍÍÍÍÍÍÍ¸/Ä4Ä3Ä2Ä1Ä\

                 ÍÍÍÍÍÍÍÍÍÍµ::::::::::ù::::::::1Æ³ 0 0 0 0 ÆÍ

                           ÔÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍ¾ÀÄ5ÄGÄGÄ12Ù

                              (pin-20 missing

                               for keying purposes)

    (Options jumper located on bottom)            (back of drive)

       Master OFF, Slave ON  ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 8o-o7  ÄÄÄÄÄÄÄÄÄÄÄÄÄÄ  0  0  1

       Slave Present ON (standard) ÄÄÄÄÄÄÄÄÄ  o-o   ÄÄÄÄÄÄÄÄÄÄÄÄÄÄ  0  1  0

                                  ÚÄÄÄ - - -  o-o                   ³  ³  ³

       Cable Select ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ ÚÄ Ä Ä Ä 2o-o1                  S  M  S

       Slave Present ON for ÄÄÄÄÄÄÄÄÙ            (front of drive)   i  a  l

        drives that don't have                                      n  s  a

        the -DASP signal (use                                       g  t  v

        only ONE of the Slave                                       l  e  e

        Present choices)                                            e  r

                             ST-3291A

                             Medalist 270xe

       UNFORMATTED CAPACITY _____________________

       FORMATTED CAPACITY (xx SECTORS) __________272.7

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________

       CYLINDERS ________________________________(user)

       HEADS _(PHYSICAL)_________________________4

       DISCS (3.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______18.7 to 32

       EXTERNAL TRANSFER RATE (mbytes/sec) ______11.1

       SPINDLE SPEED (RPM) ______________________3,811

       AVERAGE LATENCY (mSEC) ___________________7.87

       BUFFER ___________________________________120 Kbyte

        Multisegmented, SeaCache

       INTERFACE ________________________________AT

       SECTORS PER DRIVE ________________________532,700

       TPI (TRACKS PER INCH) ____________________3,081

       BPI (BITS PER INCH) ______________________55,200

       FCI (FLUX CHANGES PER INCH) ______________41,400

       AVERAGE ACCESS (ms) ______________________13

       SINGLE TRACK SEEK (ms) ___________________5

       MAX FULL SEEK (ms) _______________________32

       MTBF (power-on hours) Office _____________300,000

       POWER REQUIREMENTS: +12V START-UP (amps) _1.0

                            +5V START-UP (amps) _0.30

                                START-UP (watts)_7.50

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________4.4

                           IDLE _________________1.8

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     1.00/25.4

                        Width  (inches/mm):     4.02/102.1

                        Depth  (inches/mm):     5.77/146.6

                        Weight    (lbs/kg):     1.3/0.59

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:  761 cyl, 14 heads, 50 sectors = 272,742,400

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (05/02/94)


ST-3295A
ST-3295A (Medalist 270xe)

                                 TOP               4-pin DC

                                                   Power

                           ÕÍÍÍÍÍÍÍÍÍÍ ÍÍÍÍÍÍÍÍÍ¸/Ä4Ä3Ä2Ä1Ä\

                 ÍÍÍÍÍÍÍÍÍÍµ::::::::::ù::::::::1Æ³ 0 0 0 0 ÆÍ

                           ÔÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍ¾ÀÄ5ÄGÄGÄ12Ù

                              (pin-20 missing

                               for keying purposes)

    (Options jumper located on bottom)            (back of drive)

       Master OFF, Slave ON  ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 8o-o7  ÄÄÄÄÄÄÄÄÄÄÄÄÄÄ  0  0  1

       Slave Present ON (standard) ÄÄÄÄÄÄÄÄÄ  o-o   ÄÄÄÄÄÄÄÄÄÄÄÄÄÄ  0  1  0

                                  ÚÄÄÄ - - -  o-o                   ³  ³  ³

       Cable Select ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ ÚÄ Ä Ä Ä 2o-o1                  S  M  S

       Slave Present ON for ÄÄÄÄÄÄÄÄÙ            (front of drive)   i  a  l

        drives that don't have                                      n  s  a

        the -DASP signal (use                                       g  t  v

        only ONE of the Slave                                       l  e  e

        Present choices)                                            e  r

       Spare jumper stored on pins 1-3

                             ST-3295A

                             Medalist 270xe

       FORMATTED CAPACITY (xx SECTORS) __________272.7

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________

       CYLINDERS ________________________________(user)

       HEADS _(PHYSICAL)_________________________2

       DISCS (3.5 in) ___________________________1

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______19.5 to 35.8

       EXTERNAL TRANSFER RATE (mbytes/sec) ______11.1

       SPINDLE SPEED (RPM) ______________________3,811

       AVERAGE LATENCY (mSEC) ___________________7.87

       BUFFER ___________________________________120 Kbyte

        Multisegmented, SeaCache

       INTERFACE ________________________________AT

       SECTORS PER DRIVE ________________________532,700

       TPI (TRACKS PER INCH) ____________________3,285

       BPI (BITS PER INCH) ______________________61,700

       FCI (FLUX CHANGES PER INCH) ______________46,390

       AVERAGE ACCESS (ms) ______________________14

       SINGLE TRACK SEEK (ms) ___________________5

       MAX FULL SEEK (ms) _______________________34

       MTBF (power-on hours) Office _____________300,000

       ACOUSTICS (typ/max dBA) __________________29/33

       SHOCK (Normal/Abnormal/Nonoper.) _________2/10/75

       POWER REQUIREMENTS: +12V START-UP (amps) _1.1

                            +5V START-UP (amps) _0.35

                                START-UP (watts)_8.5

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________5.23

                           IDLE _________________1.865

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     1.00/25.4

                        Width  (inches/mm):     4.02/102.1

                        Depth  (inches/mm):     5.77/146.6

                        Weight    (lbs/kg):     1.3/0.59

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:  761 cyl, 14 heads, 50 sectors = 272,742,400

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (08/17/94)


ST-33240A
ST-33240A (Medalist 3240 AT)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                   J2  40 pin I/O Cable Connection

                   ³

        ÕÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍ1Í/ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

       Íµ::::::::::ú::::::::1³ : : : ³ 0 0 0 0 ³ÍÍ

        ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍÏÍ³Í³Í³ÍÀÄ5ÄGÄGÄ12Ù    BOTTOM

                   ³           ³ ³ ³

   pin-20 removed ÄÙ           ³ ³ ÀÄÄ Reserved

                               ³ ÃÄÄÄÄ Slave Present (when Master ON)

                               ³ ÀÄÄÄÄ Cable Select (when Slave OFF)

               o o1            ÀÄÄÄÄÄÄ Master ON, Slave OFF

               o o2

               ³ ³

               ³ ÀÄÄ Full capacity (as shipped)

               ÀÄÄÄÄ Limit capacity to 2.1 Gbytes (4092 cylinders)

   Limit Capacity jumper sets the default cylinder translation

to 4092 to solve issues with certain BIOS that only auto-detect.

Total available sectors are still at full capacity as reported via

Identify Drive data words 52 - 61.  Third party partitioning software

may be needed to achieve full capacity if this option jumper is used.

                             ST-33240A

                         Medalist 3240 AT

       FORMATTED CAPACITY _______________________3227

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________

       HEADS ______PHYSICAL______________________8

       DISCS (3.5 in) ___________________________4

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR 2/3 (1,7)RLL

       INTERNAL TRANSFER RATE (Mbits/sec) _______up to 88

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 16.6

       PIO MODE _________________________________4

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________4500

       AVERAGE LATENCY (mSEC) ___________________6.67

       BUFFER ___________________________________128K

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________Fast ATA-2

       SECTORS PER DRIVE (LBA mode) _____________6,303,024

       TPI (TRACKS PER INCH) ____________________5104

       BPI (KBITS PER INCH) _____________________108.7

       AVERAGE ACCESS (ms read/write) ___________12.5/14.5

       SINGLE TRACK SEEK (ms read/write) ________2.5/3.5

       MAX FULL SEEK (msread/write) _____________24/25

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating (Read/Write) __________5

                abnormal ________________________

                nonoperating ____________________75

       ACOUSTICS (dBA) (typ/max) _______________34/

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _1.6

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________5.6

                           IDLE _________________4.5

                           STANDBY ______________1.0

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                    Height (inches/mm):   1.03/26.16

                    Width  (inches/mm):   4.03/102.36

                    Depth  (inches/mm):  5.785/146.94

                    Weight     (lbs/g):    1.4/567.5

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       6253 cyl, 16 heads, 63 sectors = 3,227,148,288

                       DOS operating systems may require a translation

                       that uses larger values for the CMOS head

                       parameter which lowers cylinders below 1024:

       781 cyl, 128 heads, 63 sectors = 3,224,567,808

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software, system BIOS which supports LBA mode

                       or bios driven host adapters. Otherwise,

                       capacity may be limited to:

       1024 cyl, 16 heads, 63 sectors = 528,482,304

Some systems BIOS have capacity limitations.

Types that have been identified are:

     a 2.113GB or 4095 cylinder limitation

     a 3.262GB or 6322 cylinder limitation

and, if exceeded, may cause the system to hang during boot, or

it can truncate or wrap the cylinders when auto-detect options

set in the CMOS.

DOS cannot access more than 2.147 Gbytes per partition.  Create

two partitions to access the drive's full capacity.

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (12/18/96)


ST-3385A

Rear View

       Mini Power      ÚÄ 40 pin AT Interface I/O connector

        Connector      ³

            ÚÄÁÄ¿      ³  (TOP)             DC power

      ³o o³ 5   G  ÕÍÍÍÍÍÍÍÍÍÍ ÍÍÍÍÍÍÍÍÍ¸ /Ä5ÄGÄGÄ12\

     Íµo oÆµ0 0 0ÆÍµ::::::::::ú::::::::1ÆÍµ 0 0 0 0 ÆÍ     ...Ä¿

       ³ ³    12   ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍ¾ ÀÄÄÄÄÄÄÄÄÄÙ          ³

       ³ ³         (BOTTOM)   À(pin 20 missing for    (Factory test jumper

       ³ ³                      keying purposes)        block located at side)

       ³ ³

     OFF OFF  Drive is Master (single)

     OFF ON   Drive is Master with Slave present (dual)

     ON  OFF  Drive is Slave (dual)

ST-3385A                  ÚÄÄÄÄÄÄÄÄ Spindle Clock to I/O pin-28

Front View                ³ ÚÄÄÄÄÄÄ Ext. Spindle Clock Synch

                          8 ³          (see note below)

     (TOP)          o o o o-o o o+

               ÍÍÍÍ o Í o o o o o-ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

     (BOTTOM)      1ÀÄÄÄÂÄÙ ³ ³ ³

                        ³   ³ ³ ÀÄÄ Remote LED

                        ³   ³ ÀÄÄÄÄ Reserved

                        ³   ÀÄÄÄÄÄÄ Clock Ground for Ext. SPSYNC

                        ³         Ú Reserved

                        ÀÄÄÄÄÄÄÄÄÄ´ Reserved

                                  ³ Reserved pin-3 removed for key

                                  À Reserved

 Spindle Sync note: Enable pin-28 (SPSYNC-) of the AT interface connector

                    by installing a jumper on pins 8 and 10 of the options

                    jumper block.

                    Connect a twisted pair to pins 9 and 10 of the options

                    jumper block to transmit and receive SPSYNC-.

                             ST-3385A

       UNFORMATTED CAPACITY _____________________

       FORMATTED CAPACITY (xx SECTORS) __________340

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________

       HEADS ______PHYSICAL______________________5

       DISCS (3.5 in) ___________________________3

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______21.6 to 36.3

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________4,500

       AVERAGE LATENCY (mSEC) ___________________6.67

       BUFFER ___________________________________256 Kbyte SeaCache

        Read/Write Multiple Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________AT

       SECTORS PER DRIVE ________________________665,756

       BYTES PER CYLINDER _______________________

       TPI (TRACKS PER INCH) ____________________2,400

       BPI (BITS PER INCH) ______________________52,602

       AVERAGE ACCESS (ms) ______________________12

       SINGLE TRACK SEEK (ms) ___________________<4

       MAX FULL SEEK (ms) _______________________32

       MTBF (power-on hours) Office _____________250,000

       POWER REQUIREMENTS: +12V START-UP (amps) _1.9

       POWER REQUIREMENTS: +5V __________(amps) _0.55

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________5.75

                           IDLE _________________3.0

                           STANDBY ______________1.0

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     1.00/25.4

                        Width  (inches/mm):     4.02/102.1

                        Depth  (inches/mm):     5.77/146.6

                        Weight    (lbs/kg):     1.5/0.68

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:   767 cyl, 14 heads, 62 sectors = 340,867,072

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (03/30/93)


ST-3390A

Rear View

          Mini Power   ÚÄ 40 pin AT Interface I/O connector

           Connector   ³

       2    ÚÄÁÄ¿      ³  (TOP)             DC power

      ³o o³ 5   G  ÕÍÍÍÍÍÍÍÍÍÍ ÍÍÍÍÍÍÍÍÍ¸ /Ä5ÄGÄGÄ12\

     Íµo oÆµ0 0 0ÆÍµ::::::::::ú::::::::1ÆÍµ 0 0 0 0 ÆÍ     ...Ä¿

       1 ³    12   ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍ¾ ÀÄÄÄÄÄÄÄÄÄÙ          ³

       ³ ³         (BOTTOM)   À(pin 20 missing for    (Factory test jumper

       ³ ³                      keying purposes)        block located at side)

       ³ ³

     OFF OFF  Drive is Master (single)

     OFF ON   Drive is Master with Slave present (dual)

     ON  OFF  Drive is Slave (dual)

     ON  ON   Cable Select (requires jumper also on pins 6 and 8 of J8)

     Spare jumper may be stored on pins 1 and 3.

ST-3390A

Front View              ÚÄÄÄÄÄÄÄÄÄÄ Cable Select (pins 6 and 8)

                        ³ ÚÄÄÄÄÄÄÄÄ Spindle Clock to I/O pin-28 (pins 8 and 10)

                        ³ ³ ÚÄÄÄÄÄÄ Ext. Spindle Clock Synch

               J8       6-8 ³          (see note below)

     (TOP)          o o o o-o o o+

               ÍÍÍÍ o Í o o o o o-ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

     (BOTTOM)      1ÀÄÄÄÂÄÙ ³ ³ ³

                        ³   ³ ³ ÀÄÄ Remote LED

                        ³   ³ ÀÄÄÄÄ Reserved

                        ³   ÀÄÄÄÄÄÄ Clock Ground for Ext. SPSYNC

                        ³         Ú Reserved

                        ÀÄÄÄÄÄÄÄÄÄ´ Reserved

                                  ³ Reserved pin-3 removed for key

                                  À Reserved

 Spindle Sync note: Enable pin-28 (SPSYNC-) of the AT interface connector

                    by installing a jumper on pins 8 and 10 of the options

                    jumper block.

                    Connect a twisted pair to pins 9 and 10 of the options

                    jumper block to transmit and receive SPSYNC-.

                             ST-3390A

       UNFORMATTED CAPACITY _____________________

       FORMATTED CAPACITY (xx SECTORS) __________341.3

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL/LOGICAL______________

       HEADS ______PHYSICAL/LOGICAL______________3

       DISCS (3.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______21.79 to 36.56

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________4,500

       AVERAGE LATENCY (mSEC) ___________________6.67

       BUFFER ___________________________________256 Kbyte SeaCache

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________AT

       SECTORS PER DRIVE ________________________666,624

       BYTES PER CYLINDER _______________________

       TPI (TRACKS PER INCH) ____________________3,000

       BPI (BITS PER INCH) ______________________53,192

       AVERAGE ACCESS (ms) ______________________12

       SINGLE TRACK SEEK (ms) ___________________<4

       MAX FULL SEEK (ms) _______________________32

       MTBF (power-on hours) Office _____________250,000

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _1.9

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________4.9

                           IDLE _________________2.5

                           STANDBY ______________0.3

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     1.00/25.4

                        Width  (inches/mm):     4.02/102.1

                        Depth  (inches/mm):     5.77/146.6

                        Weight    (lbs/kg):     1.5/0.68

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:  768 cyl, 14 heads, 62 sectors = 341,311,488

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (11/08/93)


ST-3391A
ST-3391A (Medalist 340xe)

                                 TOP               4-pin DC

                                                   Power

                           ÕÍÍÍÍÍÍÍÍÍÍ ÍÍÍÍÍÍÍÍÍ¸/Ä4Ä3Ä2Ä1Ä\

                 ÍÍÍÍÍÍÍÍÍÍµ::::::::::ù::::::::1Æ³ 0 0 0 0 ÆÍ

                           ÔÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍ¾ÀÄ5ÄGÄGÄ12Ù

                              (pin-20 missing

                               for keying purposes)

    (Options jumper located on bottom)            (back of drive)

       Master OFF, Slave ON  ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 8o-o7  ÄÄÄÄÄÄÄÄÄÄÄÄÄÄ  0  0  1

       Slave Present ON (standard) ÄÄÄÄÄÄÄÄÄ  o-o   ÄÄÄÄÄÄÄÄÄÄÄÄÄÄ  0  1  0

                                  ÚÄÄÄ - - -  o-o                   ³  ³  ³

       Cable Select ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ ÚÄ Ä Ä Ä 2o-o1                  S  M  S

       Slave Present ON for ÄÄÄÄÄÄÄÄÙ            (front of drive)   i  a  l

        drives that don't have                                      n  s  a

        the -DASP signal (use                                       g  t  v

        only ONE of the Slave                                       l  e  e

        Present choices)                                            e  r

                             ST-3391A

                             Medalist 340xe

       UNFORMATTED CAPACITY _____________________

       FORMATTED CAPACITY (xx SECTORS) __________341.3

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________

       CYLINDERS ________________________________(user)

       HEADS _(PHYSICAL)_________________________4

       DISCS (3.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______18.7 to 32

       EXTERNAL TRANSFER RATE (mbytes/sec) ______11.1

       SPINDLE SPEED (RPM) ______________________3,811

       AVERAGE LATENCY (mSEC) ___________________7.87

       BUFFER ___________________________________120 Kbyte

        Multisegmented, SeaCache

       INTERFACE ________________________________AT

       SECTORS PER DRIVE ________________________666,624

       TPI (TRACKS PER INCH) ____________________3,081

       BPI (BITS PER INCH) ______________________55,200

       FCI (FLUX CHANGES PER INCH) ______________41,400

       AVERAGE ACCESS (ms) ______________________14

       SINGLE TRACK SEEK (ms) ___________________5

       MAX FULL SEEK (ms) _______________________33

       MTBF (power-on hours) Office _____________300,000

       POWER REQUIREMENTS: +12V START-UP (amps) _1.0

                            +5V START-UP (amps) _0.30

                                START-UP (watts)_7.50

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________4.4

                           IDLE _________________1.8

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     1.00/25.4

                        Width  (inches/mm):     4.02/102.1

                        Depth  (inches/mm):     5.77/146.6

                        Weight    (lbs/kg):     1.3/0.59

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:  768 cyl, 14 heads, 62 sectors = 341,311,488

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (08/09/94)


ST-3420A
ST-3420A, Filepro 420 AT (Bobcat CFS420A)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

 Optional Mini Power

 Power Connector      J2 40 pin I/O Cable Connection

    ÚÄÁÄ¿             ³

    G   5  ÕÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

  Íµ0 0 0ÆÍµ::::::::::ú::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

      12   ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                      ³

                      ÀÄÄÄ pin-20 removed

     ST-3420A

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º              ÚÄÄÄÄ  Compatibility Mode

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼              ³        ATA ON, ISA OFF

                                ³

                                ³ ÚÄÄ  Master ON, Slave OFF (C/D)

                                ³ ³

    (TOP)         o o o o o   o o o1

Option Block   ÍÍÍ  o o o o   o o o2ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

   (BOTTOM)       ÀÄÄÄÂÄÄÄÙ   ³

                      ³       ³

          Reserved ÄÄÄÙ       ³

              Reserved  ÄÄÄÄÄÄÙ

                             ST-3420A

                    Filepro 420 AT (Bobcat CFS420A)

       FORMATTED CAPACITY _______________________426.8

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________2388

       HEADS ______PHYSICAL______________________4

       DISCS (3.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (Mbits/sec) _______20 to 32

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 7.5

       PIO MODE _________________________________

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________3600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________32K

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________ATA

       SECTORS PER DRIVE (LBA mode) _____________

       TPI (TRACKS PER INCH) ____________________2774

       BPI (KBITS PER INCH) _____________________58,566

       AVERAGE ACCESS (ms) ______________________14

       SINGLE TRACK SEEK (ms) ___________________3

       MAX FULL SEEK (ms) _______________________25

       MTBF (power-on hours) Office _____________250,000

       SHOCK (G's):

                operating (Read/Write) __________5

                abnormal ________________________

                nonoperating ____________________75

       ACOUSTICS (bels) (typ/max) _______________43/

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _1.2

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________5.7

                           IDLE _________________3.8

                           STANDBY ______________1.4

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):  1.00/25.4

                        Width  (inches/mm):  4.00/101.6

                        Depth  (inches/mm):  5.75/146.1

                        Weight    (lbs/kg):   1.0/0.45

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations: 826 cyl, 16 heads, 63 sectors = 426,295,296

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (02/21/96)


ST-3425A
ST-3425A, Filepro 425 AT (Cabo CFS425A)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

            J2  40 pin I/O        Optional Mini Power

            Cable Connection      Power Connector

                      ³            ÚÄÁÄ¿

           ÕÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍ¸  G   5  /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

          Íµ::::::::::ú::::::::1ÆÍµ0 0 0ÆÍ³ 0 0 0 0 ³ÍÍ

           ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍ¾    12   ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                      ³

                      ÀÄÄÄ pin-20 removed

     ST-3425A

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼            ÚÄÄÄÄ  Not Used

                              ³

                              ³ ÚÄÄ  Master ON, Slave OFF (C/D)

                              ³ ³

    (TOP)         o o o o   o o o1

Option Block   ÍÍÍo o o o   o o o2ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

   (BOTTOM)       ÀÄÄÄÂÄÙ   ³

                      ³     ³

          Reserved ÄÄÄÙ     ³

          Cable Select  ÄÄÄÄÙ

                             ST-3425A

                    Filepro 425 AT (Cabo CFS425A)

       FORMATTED CAPACITY _______________________425

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________3687

       HEADS ______PHYSICAL______________________2

       DISCS (3.5 in) ___________________________1

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (Mbits/sec) _______29.9 to 55.2

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 16.6

       PIO MODE _________________________________4

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________3600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________64K

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________ATA

       SECTORS PER DRIVE (LBA mode) _____________

       TPI (TRACKS PER INCH) ____________________3845

       BPI (KBITS PER INCH) _____________________77K

       AVERAGE ACCESS (ms) ______________________14

       SINGLE TRACK SEEK (ms) ___________________3

       MAX FULL SEEK (ms) _______________________26

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating (Read/Write) __________5

                abnormal ________________________

                nonoperating ____________________75

       ACOUSTICS (bels) (typ/max) _______________38/

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________4.5

                           IDLE _________________3.0

                           STANDBY ______________<1.0

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):  1.00/25.4

                        Width  (inches/mm):  4.00/101.6

                        Depth  (inches/mm):  5.75/146.1

                        Weight    (lbs/kg):   1.3/0.59

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations:  839 cyl, 16 heads, 62 sectors = 426,131,456

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (02/19/96)


ST-34340A
ST-34340A (Medalist 4340 AT)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                   J2  40 pin I/O Cable Connection

                   ³

        ÕÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍ1Í/ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

       Íµ::::::::::ú::::::::1³ : : : ³ 0 0 0 0 ³ÍÍ

        ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍÏÍ³Í³Í³ÍÀÄ5ÄGÄGÄ12Ù    BOTTOM

                   ³           ³ ³ ³

   pin-20 removed ÄÙ           ³ ³ ÀÄÄ Reserved

                               ³ ÃÄÄÄÄ Slave Present (when Master ON)

                               ³ ÀÄÄÄÄ Cable Select (when Slave OFF)

                               ÀÄÄÄÄÄÄ Master ON, Slave OFF

                             ST-34340A

                         Medalist 4340 AT

       FORMATTED CAPACITY _______________________4303

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________

       HEADS ______PHYSICAL______________________8

       DISCS (3.5 in) ___________________________4

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR 2/3 (1,7)RLL

       INTERNAL TRANSFER RATE (Mbits/sec) _______up to 88

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 16.6

       PIO MODE _________________________________4

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________4500

       AVERAGE LATENCY (mSEC) ___________________6.67

       BUFFER ___________________________________128K

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________Fast ATA-2

       SECTORS PER DRIVE (LBA mode) _____________8,404,704

       TPI (TRACKS PER INCH) ____________________5950

       BPI (KBITS PER INCH) _____________________115.1

       AVERAGE ACCESS (ms read/write) ___________12.5/14.5

       SINGLE TRACK SEEK (ms read/write) ________2.5/3.5

       MAX FULL SEEK (msread/write) _____________20.5/21.5

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating (Read/Write) __________5

                abnormal ________________________

                nonoperating ____________________75

       ACOUSTICS (dBA) (typ/max) _______________34/

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _1.6

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________6.6

                           IDLE _________________4.8

                           STANDBY ______________1.0

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                    Height (inches/mm):   1.03/26.16

                    Width  (inches/mm):   4.03/102.36

                    Depth  (inches/mm):  5.785/146.94

                    Weight     (lbs/g):    1.4/567.5

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       8338 cyl, 16 heads, 63 sectors = 4,303,208,448

                       DOS operating systems may require a translation

                       that uses larger values for the CMOS head

                       parameter which lowers cylinders below 1024:

       521 cyl, 256 heads, 63 sectors = 4,302,176,256

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software, system BIOS which supports LBA mode

                       or bios driven host adapters. Otherwise,

                       capacity may be limited to:

       1024 cyl, 16 heads, 63 sectors = 528,482,304

Some systems BIOS have capacity limitations.

Types that have been identified are:

     a 2.113GB or 4095 cylinder limitation

     a 3.262GB or 6322 cylinder limitation

and, if exceeded, may cause the system to hang during boot, or

it can truncate or wrap the cylinders when auto-detect options

set in the CMOS.

DOS cannot access more than 2.147 Gbytes per partition.  Create

two partitions to access the drive's full capacity.

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (12/09/96)


ST-3491A
ST-3491A (Medalist 425xe)

                                 TOP               4-pin DC

                                                   Power

                           ÕÍÍÍÍÍÍÍÍÍÍ ÍÍÍÍÍÍÍÍÍ¸/Ä4Ä3Ä2Ä1Ä\

                 ÍÍÍÍÍÍÍÍÍÍµ::::::::::ù::::::::1Æ³ 0 0 0 0 ÆÍ

                           ÔÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍ¾ÀÄ5ÄGÄGÄ12Ù

                              (pin-20 missing

                               for keying purposes)

    (Options jumper located on bottom)            (back of drive)

       Master OFF, Slave ON  ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 8o-o7  ÄÄÄÄÄÄÄÄÄÄÄÄÄÄ  0  0  1

       Slave Present ON (standard) ÄÄÄÄÄÄÄÄÄ  o-o   ÄÄÄÄÄÄÄÄÄÄÄÄÄÄ  0  1  0

                                  ÚÄÄÄ - - -  o-o                   ³  ³  ³

       Cable Select ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ ÚÄ Ä Ä Ä 2o-o1                  S  M  S

       Slave Present ON for ÄÄÄÄÄÄÄÄÙ            (front of drive)   i  a  l

        drives that don't have                                      n  s  a

        the -DASP signal (use                                       g  t  v

        only ONE of the Slave                                       l  e  e

        Present choices)                                            e  r

                             ST-3491A

                             Medalist 425xe

       UNFORMATTED CAPACITY _____________________

       FORMATTED CAPACITY (xx SECTORS) __________428.1

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________

       CYLINDERS ________________________________(user)

       HEADS _(PHYSICAL)_________________________4

       DISCS (3.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______18.7 to 32

       EXTERNAL TRANSFER RATE (mbytes/sec) ______11.1

       SPINDLE SPEED (RPM) ______________________3,811

       AVERAGE LATENCY (mSEC) ___________________7.87

       BUFFER ___________________________________120 Kbyte

        Multisegmented, SeaCache

       INTERFACE ________________________________AT

       SECTORS PER DRIVE ________________________836,070

       TPI (TRACKS PER INCH) ____________________3,081

       BPI (BITS PER INCH) ______________________55,200

       FCI (FLUX CHANGES PER INCH) ______________41,400

       AVERAGE ACCESS (ms) ______________________15

       SINGLE TRACK SEEK (ms) ___________________5

       MAX FULL SEEK (ms) _______________________34

       MTBF (power-on hours) Office _____________300,000

       POWER REQUIREMENTS: +12V START-UP (amps) _1.0

                            +5V START-UP (amps) _0.30

                                START-UP (watts)_7.50

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________4.4

                           IDLE _________________1.8

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     1.00/25.4

                        Width  (inches/mm):     4.02/102.1

                        Depth  (inches/mm):     5.77/146.6

                        Weight    (lbs/kg):     1.3/0.59

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:  899 cyl, 15 heads, 62 sectors = 428,067,840

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (08/09/94)


ST351AX 12-pin
ST325AX, ST351AX and ST352AX

    ³J2 12-pin version (located

    ³    on side, near rear)

    ÀÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ

          ³

        1  3  5  7  9  11

(front) ß  ø  ø  ø  ø  ø  (back)

        ø  ø  ø  ø  ø  ø

 ÍÍÍÍÍÏÍ2ÍÍ4ÍÍ6ÍÍ8ÍÍ10Í12ÍÏÍÍÍ

         ³                                                         4-pin DC

         ³

         ³                        3-pin DC   AT/XT Interface       Power

         ³                        Power      connector            ÚÄ1Ä2Ä3Ä4Ä¿

         ³                       ÕÍ1Í2Í3Í¸ ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸ ³ 0 0 0 0 ³

     ÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿    ³ 0 0 0 ³ ³:::::::::::::::::::1³ \12ÄGÄGÄ5Ä/

    J2 Jumper Configurations³   ÍÏÍ5Í12GÍÏÍÏÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÍÍÍÍÍÍÍÍÍÍ

           (12 pin version) ³

      note: some jumpers are VERTICAL, others are HORIZONTAL

  ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍ¸

  ³ Jumper         ³  Pin    ³ AT Single ³  AT Master ³ AT Slave   ³ XT  ³

  ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍµ

  ³ Master/Slave   ³  1-2    ³    X      ³     X      ³    0       ³ (3) ³

  ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄ´

  ³ Slave Present  ³  3-4    ³    0      ³     X      ³    0       ³ (3) ³

  ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄ´

  ³ Active LED     ³  5-6    ³    X      ³     X      ³    0 (2)   ³ X   ³

  ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄ´

  ³ Slave          ³  5-7    ³    0      ³     0      ³    X (2)   ³ 0   ³

  ³                ³         ³           ³            ³            ³     ³

  ÌÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÎÍÍÍÍÍÍÍÍÍÎÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍ¹

  º XT Mode        º  7-8    º                                     ³ X   º

  ÇÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÎÍÍÍÍÍÍÍÍÍ¹                                     ÃÄÄÄÄÄ¶

  º XT Only: 40    º  1-2    º                                     ³ X   º

  º  Mbyte Cap.    º  ST351  º                                     ³     º

  ÇÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÎÍÍÍÍÍÍÍÍÍ¹           12 pin version            ÃÄÄÄÄÄ¶

  º XT Only: 30    º  3-4    º                                     ³ X   º

  º  Mbyte Cap.    º  ST351  º                                     ³     º

  ÇÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÎÍÍÍÍÍÍÍÍÍ¹                                     ÃÄÄÄÄÄ¶

  º XT Only: 20    º  1-2 &  º                                     ³ X   º

  º  Mbyte Cap.    º  3-4    º                                     ³     º

  ÌÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÎÍÍÍÍÍÍÍÍÍÎÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÍÍ¹

  ³ Factory Test   ³  7-9    ³         FACTORY USE ONLY                  ³

  ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄ´

  ³ Bus Reset (1)  ³  10-12  ³    0      ³     0      ³    0       ³ 0/X ³

  ³  High          ³         ³           ³            ³            ³     ³

  ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄ´

  ³ Bus Reset (1)  ³  11-12  ³    X      ³     X      ³    X       ³ X/0 ³

  ³  Low  ÚÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÙ

  ÀÄÄÄÄÄÄÄÙ   X = Jumpered; 0 = No Jumper

        (1) Bus reset active level. System dependent. A jumper must be

            installed on either Bus Reset Hi or Bus Reset Low; the

            drive will not function if neither set of pins is

            jumpered.

        (2) HSP/Assert "/DASP" signal: pin 39 on 40-pin AT/AT

            Interface connector. The Host Slave Present jumper and the

            Active LED jumper are mutually exclusive.

        (3) XT only. These jumpers are used to set the drive type

            information to be returned by the drive via the Drive

            Configuration register (I/O port 2) or the XT Interface.


ST351AX 18-pin
ST325AX and ST351AX

    ³J2 18-pin version (located

    ³    on side, near rear)

    ÀÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ

          ³

        1  3  5  7  9  11 13 15 17

(front) ß  ø  ø  ø  ø  ø  ø  ø  ø

        ø  ø  ø  ø  ø  ø  ø  ø  ø

 ÍÍÍÍÍÏÍ2ÍÍ4ÍÍ6ÍÍ8ÍÍ10Í12Í14Í16Í18ÍÏÍÍÍ

         ³                                                         4-pin DC

         ³

         ³                                   AT/XT Interface       Power

         ³                                   connector            ÚÄ1Ä2Ä3Ä4Ä¿

         ³                                 ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸ ³ 0 0 0 0 ³

     ÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿              ³:::::::::::::::::::1³ \12ÄGÄGÄ5Ä/

    J2 Jumper Configurations³   ÍÍÍÍÍÍÍÍÍÍÍÏÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÍÍÍÍÍÍÍÍÍÍ

           (18 pin version) ³

  ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍ¸

  ³ Jumper         ³  Pin    ³ AT Single ³  AT Master ³ AT Slave   ³ XT  ³

  ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÍÍµ

  ³ Factory Test   ³  1-2    ³         FACTORY USE ONLY                  ³

  ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄ´

  ³ Master/Slave   ³  3-4    ³    X      ³     X      ³    0       ³ (3) ³

  ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄ´

  ³ Slave Present  ³  5-6    ³    0      ³     X      ³    0       ³ (3) ³

  ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄ´

  ³ Slave          ³  7-8    ³    0      ³     0      ³    X (2)   ³ 0   ³

  ³                ³         ³           ³            ³            ³     ³

  ÌÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÎÍÍÍÍÍÍÍÍÍÎÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍ¹

  º XT Mode        º  9-10   º                                     ³ X   º

  ÇÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÎÍÍÍÍÍÍÍÍÍ¹                                     ÃÄÄÄÄÄ¶

  º XT Only: 40    º  3-4    º                                     ³ X   º

  º  Mbyte Cap.    º  ST351  º                                     ³     º

  ÇÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÎÍÍÍÍÍÍÍÍÍ¹           18 pin version            ÃÄÄÄÄÄ¶

  º XT Only: 30    º  5-6    º                                     ³ X   º

  º  Mbyte Cap.    º  ST351  º                                     ³     º

  ÇÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÎÍÍÍÍÍÍÍÍÍ¹                                     ÃÄÄÄÄÄ¶

  º XT Only: 20    º  3-4 &  º                                     ³ X   º

  º  Mbyte Cap.    º  5-6    º                                     ³     º

  ÌÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÎÍÍÍÍÍÍÍÍÍÎÍÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍ¹

  ³ HSC1           ³  11-12  ³    X      ³     X      ³    X       ³ X   ³

  ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄ´

  ³ Active LED     ³  13-14  ³    X      ³     X      ³    0 (2)   ³ 0   ³

  ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄ´

  ³ Bus Reset (1)  ³  15-16  ³    0      ³     0      ³    0       ³ 0/X ³

  ³  High          ³         ³           ³            ³            ³     ³

  ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄ´

  ³ Bus Reset (1)  ³  17-18  ³    X      ³     X      ³    X       ³ X/0 ³

  ³  Low  ÚÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÙ

  ÀÄÄÄÄÄÄÄÙ   X = Jumpered; 0 = No Jumper

        (1) Bus reset active level. System dependent. A jumper must be

            installed on either Bus Reset Hi or Bus Reset Low; the

            drive will not function if neither set of pins is

            jumpered.

        (2) HSP/Assert "/DASP" signal: pin 39 on 40-pin AT/AT

            Interface connector. The Host Slave Present jumper and the

            Active LED jumper are mutually exclusive.

        (3) XT only. These jumpers are used to set the drive type

            information to be returned by the drive via the Drive

            Configuration register (I/O port 2) or the XT Interface.


ST-351AX
ST-351A/X

Select a configuration block version for jumpers

     Jumpers for 12 pin version  Jumpers for 18 pin version

                        ST - 351A/X

       UNFORMATTED CAPACITY (MB) ________________51

       FORMATTED CAPACITY (17 SECTORS) (MB) _____42.82

       AVERAGE SECTORS PER TRACK ________________

       ACTUATOR TYPE ____________________________STEPPER

       TRACKS ___________________________________

       CYLINDERS _(Physical/Logical)_____________xx/820

       HEADS ____________________________________2/6

       DISCS ____________________________________1

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL 2,7 (ZBR)

       INTERNAL TRANSFER RATE (mbits/sec) _______10/12/14

       SPINDLE SPEED (RPM) ______________________3,048

       AVERAGE LATENCY (mSEC) ___________________9.84

       INTERFACE ________________________________AT/XT

       SECTORS PER DRIVE ________________________83,640

       TPI (TRACKS PER INCH) ____________________1290

       BPI (BITS PER INCH) ______________________27152/28155/28922

       AVERAGE ACCESS (ms) ______________________28

       SINGLE TRACK SEEK (ms) ___________________7

       MAX FULL SEEK (ms) _______________________65

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _0.8

                           +12V TYPICAL (amps) __0.10

                           +5V TYPICAL (amps) ___0.11

                           TYPICAL (watts) ______2.0

                           MAXIMUM (watts) ______

       BUFFERED STEP PULSE RATE (micro sec) _____

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl)________________________AUTO PARK

       IBM AT DRIVE TYPE ________________________40, 44*

Possible translation:   820 cyl, 6 heads, 17 sectors = 42,823,680

                        980 cyl, 5 heads, 17 sectors = 42,649,600

                        977 cyl, 5 heads, 17 sectors = 42,519,040

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

 * CHECK TO SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE"

DRIVE TYPE AVAILABLE. (see below)

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory for AT installations.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (5/6/91)


ST-352AX
ST-352A/X

     Jumpers for 12 pin version

                        ST - 352A/X

       UNFORMATTED CAPACITY (MB) ________________51

       FORMATTED CAPACITY (17 SECTORS) (MB) _____42.82

       AVERAGE SECTORS PER TRACK ________________

       ACTUATOR TYPE ____________________________STEPPER

       TRACKS ___________________________________

       CYLINDERS _(Physical/Logical)_____________xx/980

       HEADS ____________________________________2/5

       DISCS ____________________________________1

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL 2,7 (ZBR)

       INTERNAL TRANSFER RATE (mbits/sec) _______10/12/14

       SPINDLE SPEED (RPM) ______________________3,048

       AVERAGE LATENCY (mSEC) ___________________9.84

       INTERFACE ________________________________AT/XT

       SECTORS PER DRIVE ________________________83,640

       TPI (TRACKS PER INCH) ____________________1290

       BPI (BITS PER INCH) ______________________27152/28155/28922

       AVERAGE ACCESS (ms) ______________________28

       SINGLE TRACK SEEK (ms) ___________________7

       MAX FULL SEEK (ms) _______________________65

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _0.8

                           +12V TYPICAL (amps) __0.10

                           +5V TYPICAL (amps) ___0.11

                           TYPICAL (watts) ______2.0

                           MAXIMUM (watts) ______

       BUFFERED STEP PULSE RATE (micro sec) _____

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl)________________________AUTO PARK

       IBM AT DRIVE TYPE ________________________40, 44*

Possible translation:   980 cyl, 5 heads, 17 sectors = 42,649,600

                        977 cyl, 5 heads, 17 sectors = 42,519,040

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

 * CHECK TO SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE"

DRIVE TYPE AVAILABLE. (see below)

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory for AT installations.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/7/93)


ST-3500A
ST-3500A AT Interface

                     J5 Drive ID Select and     ³    ³ J6 (located on side

                     Configuration Select Header³    ³ near rear)

                     ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÙ    ÀÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄ

                                           ³                   o o o1

                                           ³            +5v ---o o o

 40-pin I/O Cable Connector                ³                  ÍÍÍÍÍÍÍÍ

   ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸             o o o o o1               1 2 3

 J1³::::::::::ù::::::::1³ /ÄÄÄÄÄÄÄÄÄ\ o o o o o     Remote LEDÃÙ ³ À´Reserved

  ÍÏÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÏÍ³ 0 0 0 0 ³ÍÍÍÍÍÍÍÍÍÍÍ    ConnectionÙ  ÀÄÄ´Jumper

  (pin 20 missing for     ÀÄ5ÄGÄGÄ12Ù (see below)Ä¿                 ÀPosition

   keying purposes)         DC Power     ÚÄÄÄÄÄÄÄÄÙ

                                         ³

                    ÚÄJ5ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄ¿

                    ³        ÚÄ¿     ÚÄ¿ ÚÄ¿   1      ³

                    ³        ³o³  o-C´oÃE´oÃG-o       ³

                    ³        ³oÃB-o  ³o³ ³o³  o       ³

                    ³        ÀAÙ     ÀDÙ ÀFÙ  H       ³

                    ³   ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ    ³

                    ÀÄÄDefaults shown in solid linesÄÄÙ

J5 Jumper  Funtion Description (* indicates default)

ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ

A    B     (A=vertical, pins 9 & 10; B=horizontal, pins 8 & 10)

OFF  OFF   Drive is the slave (Drive 1).

OFF  ON    Drive is the master (Drive 0) with slave (Drive 1) present.

ON*  OFF   Drive s the master (Drive 0).

C          (C=horizontal, pins 5 & 7)

ON         Slave (Drive 1) Present is connected to J1 pin 39. Jumpers

           "D" or "E" cannot be installed if jumper "C" is installed.

D          (D=vertical, pins 5 & 6)

ON*        DASP- is connected to J1 pin 39. Jumpers "C", "D", "F", or

           "G" cannot be installed if jumper "E" is installed.

OFF        REFSIG is not connected to J1 pin 39.

E          (E=horizontal, pins 3 & 5)

ON         REFSIG is connected to J1 pin 39. Jumpers "C", "D", "F",

           or "G" cannot be installed if jumper "E" is installed.

OFF        REFSIG is not connected to J1 pin 39.

F          (F=vertical, pins 3 & 4)

ON*        No external reference for REFSIG. Jumpers "E", "G", or "H"

           cannot be installed if jumper "F" is installed.

OFF        This location provides a port for external connection of

           the synchronized spindle reference signal (pin 3) and

           ground (pin 4).

G          (G=horizontal, pins 1 & 3)

ON         REFSIG is connected to J1 pin 28. Jumpers "E" or "F" cannot

           be installed if jumper "G" is installed.

OFF        REFSIG is not connected to J1 pin 28.

H          (H=vertical, pins 1 & 2)

ON         Drive implements "CSEL" (Cable Select line in I/O connector)

           feature.  Implementation not defined yet.  Jumpers A and B

           not used if jumper H is on.  (This jumper is mutually

           exclusive with jumper "G").

OFF*       Drive select is based on use of jumper A or B.

J6 Jumper  Funtion Description (2x3 jumper block)

-------------------------------------------------

     1     Remote LED connection. Pin 6 is connected to +5v through a

           147 ohm resistor. Pin 5 is the LED driver.

     2     Reserved jumper position.

     3     Reserved jumper position.

                            ST-3500A

       UNFORMATTED CAPACITY (MB) ________________502

       FORMATTED CAPACITY (xx SECTORS) (MB) _____426

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________10,829

       CYLINDERS __PHYSICAL______________________1,547 (user)

       HEADS ______PHYSICAL______________________7

       DISCS (3.5 in) ___________________________4

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       TRANSFER RATE INTERNAL (mbits/sec)________21.6 to 36

       SPINDLE SPEED (RPM) ______________________4,535

       AVERAGE LATENCY (mSEC) ___________________6.61

       BUFFER ___________________________________256 KByte SeaCache

        Prefetch, Multi-Segmented

       INTERFACE ________________________________AT BUS

       SECTORS PER DRIVE ________________________

       TPI (TRACKS PER INCH) ____________________2150

       AVERAGE ACCESS (ms) (read/write)__________9.9/10.6

       SINGLE TRACK SEEK (ms) ___________________2

       MAX FULL SEEK (ms) _______________________21.5

       MTBF (power-on hours) ____________________200,000

       POWER REQUIREMENTS: +12V START-UP (amps) _1.5

                           +12V TYPICAL (amps) __0.4

                           +5V TYPICAL (amps) ___0.2

                           TYPICAL (watts) ______5

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     1.00/25.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.75/146.1

                        Weight   (lbs/kg):      1.8/0.80

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:   895 cyl, 15 heads, 62 sectors = 426,163,200

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/12/92)


ST-3541A
ST-3541A, Cabo 541 AT (Stingray CFS541A)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

            J2  40 pin I/O        Optional Mini Power

            Cable Connection      Power Connector

                      ³            ÚÄÁÄ¿

           ÕÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍ¸  G   5  /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

          Íµ::::::::::ú::::::::1ÆÍµ0 0 0ÆÍ³ 0 0 0 0 ³ÍÍ

           ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍ¾    12   ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                      ³

                      ÀÄÄÄ pin-20 removed

     ST-3541A

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼              ÚÄÄÄÄ  Not Used

                                ³

                                ³ ÚÄÄ  Master ON, Slave OFF (C/D)

                                ³ ³

    (TOP)         o o o o o   o o o1

Option Block   ÍÍÍ  o o o o   o o o2ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

   (BOTTOM)       ÀÄÄÄÂÄÄÄÙ   ³

                      ³       ³

          Reserved ÄÄÄÙ       ³

          Cable Select  ÄÄÄÄÄÄÙ

                             ST-3541A

                   Cabo 541 AT (Stingray CFS541A)

       FORMATTED CAPACITY _______________________541

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________3924

       HEADS ______PHYSICAL______________________2

       DISCS (3.5 in) ___________________________1

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (Mbits/sec) _______34.5 to 65.2

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 16.6

       PIO MODE _________________________________4

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________3600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________64K

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________ATA

       SECTORS PER DRIVE (LBA mode) _____________

       TPI (TRACKS PER INCH) ____________________4100

       BPI (KBITS PER INCH) _____________________93K

       AVERAGE ACCESS (ms) ______________________14

       SINGLE TRACK SEEK (ms) ___________________3

       MAX FULL SEEK (ms) _______________________26

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating (Read/Write) __________5

                abnormal ________________________

                nonoperating ____________________75

       ACOUSTICS (bels) (typ/max) _______________38/

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________3.9

                           IDLE _________________2.5

                           STANDBY ______________<1.0

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):  1.00/25.4

                        Width  (inches/mm):  4.00/101.6

                        Depth  (inches/mm):  5.75/146.1

                        Weight    (lbs/kg):   1.3/0.59

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       1048 cyl, 16 heads, 63 sectors = 540,868,608

                       DOS operating systems may require a system bios

                       that accepts larger values for the CMOS head

                       parameter which lowers cylinders below 1024:

        524 cyl, 32 heads, 63 sectors = 540,868,608

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software, system BIOS which supports LBA mode

                       or bios driven host adapters. Otherwise,

                       capacity may be limited to:

       1024 cyl, 16 heads, 63 sectors = 528,482,304

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (02/19/96)


ST-3543A
ST-3543A, Filepro 540 AT (Cabo CFS540A)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

 Optional Mini Power

 Power Connector      J2 40 pin I/O Cable Connection

    ÚÄÁÄ¿             ³

    G   5  ÕÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

  Íµ0 0 0ÆÍµ::::::::::ú::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

      12   ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                      ³

                      ÀÄÄÄ pin-20 removed

     ST-3543A

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º              ÚÄÄÄÄ  Compatibility Mode

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼              ³        ATA ON, ISA OFF

                                ³

                                ³ ÚÄÄ  Master ON, Slave OFF (C/D)

                                ³ ³

    (TOP)         o o o o o   o o o1

Option Block   ÍÍÍ  o o o o   o o o2ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

   (BOTTOM)       ÀÄÄÄÂÄÄÄÙ   ³

                      ³       ³

          Reserved ÄÄÄÙ       ³

          Cable Select  ÄÄÄÄÄÄÙ

                             ST-3543A

                    Filepro 540 AT (Cabo CFS540A)

       FORMATTED CAPACITY _______________________541.9

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________2574

       HEADS ______PHYSICAL______________________4

       DISCS (3.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (Mbits/sec) _______23.5 to 35.3

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 13

       PIO MODE _________________________________3

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________3600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________64K

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________ATA

       SECTORS PER DRIVE (LBA mode) _____________

       TPI (TRACKS PER INCH) ____________________2990

       BPI (KBITS PER INCH) _____________________70K

       AVERAGE ACCESS (ms) ______________________<15

       SINGLE TRACK SEEK (ms) ___________________3

       MAX FULL SEEK (ms) _______________________24

       MTBF (power-on hours) Office _____________250,000

       SHOCK (G's):

                operating (Read/Write) __________5

                abnormal ________________________

                nonoperating ____________________75

       ACOUSTICS (bels) (typ/max) _______________42/

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _1.2

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________5.6

                           IDLE _________________3.9

                           STANDBY ______________<1.0

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):  1.00/25.4

                        Width  (inches/mm):  4.00/101.6

                        Depth  (inches/mm):  5.75/146.1

                        Weight    (lbs/kg):   1.25/0.57

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       1050 cyl, 16 heads, 63 sectors = 541,900,800

                       DOS operating systems may require a system bios

                       that accepts larger values for the CMOS head

                       parameter which lowers cylinders below 1024:

        525 cyl, 32 heads, 63 sectors = 541,900,800

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software, system BIOS which supports LBA mode

                       or bios driven host adapters. Otherwise,

                       capacity may be limited to:

       1024 cyl, 16 heads, 63 sectors = 528,482,304

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (09/09/96)


ST-3544A
ST-3544A, Filepro 540 AT (Filepro Advantage 540, Cabo 540, CFA540A)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

 Optional Mini Power

 Power Connector      J2 40 pin I/O Cable Connection

    ÚÄÁÄ¿             ³

    G   5  ÕÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

  Íµ0 0 0ÆÍµ::::::::::ú::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

      12   ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                      ³

                      ÀÄÄÄ pin-20 removed

     ST-3544A

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º              ÚÄÄÄÄ  Compatibility Mode

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼              ³        ATA ON, ISA OFF

                                ³

                                ³ ÚÄÄ  Master ON, Slave OFF (C/D)

                                ³ ³

    (TOP)         o o o o o   o o o1

Option Block   ÍÍÍ  o o o o   o o o2ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

   (BOTTOM)       ÀÄÄÄÂÄÄÄÙ   ³

                      ³       ³

          Reserved ÄÄÄÙ       ³

              Reserved  ÄÄÄÄÄÄÙ

                             ST-3544A

       Filepro 540 AT (Filepro Advantage 540, Cabo 540, CFA540A)

       FORMATTED CAPACITY _______________________540.86

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________2805

       HEADS ______PHYSICAL______________________4

       DISCS (3.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (Mbits/sec) _______27 to 46

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 11.1

       PIO MODE _________________________________2

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________4500

       AVERAGE LATENCY (mSEC) ___________________6.7

       BUFFER ___________________________________256K

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________ATA

       SECTORS PER DRIVE (LBA mode) _____________

       TPI (TRACKS PER INCH) ____________________3253

       BPI (KBITS PER INCH) _____________________62,500

       AVERAGE ACCESS (ms) ______________________12

       SINGLE TRACK SEEK (ms) ___________________3

       MAX FULL SEEK (ms) _______________________26

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating (Read/Write) __________5

                abnormal ________________________

                nonoperating ____________________75

       ACOUSTICS (bels) (typ/max) _______________43/

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _1.2

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________6.8

                           IDLE _________________4.0

                           STANDBY ______________1.75

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):  1.00/25.4

                        Width  (inches/mm):  4.00/101.6

                        Depth  (inches/mm):  5.75/146.1

                        Weight    (lbs/kg):   1.2/0.54

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       1048 cyl, 16 heads, 63 sectors = 540,868,608

                       DOS operating systems may require a system bios

                       that accepts larger values for the CMOS head

                       parameter which lowers cylinders below 1024:

        524 cyl, 32 heads, 63 sectors = 540,868,608

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software, system BIOS which supports LBA mode

                       or bios driven host adapters. Otherwise,

                       capacity may be limited to:

       1024 cyl, 16 heads, 63 sectors = 528,482,304

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (09/09/96)


ST-3550A
ST-3550A (Medalist 455)

Rear View

          Mini Power   ÚÄ 40 pin AT Interface I/O connector

           Connector   ³

       2    ÚÄÁÄ¿      ³  (TOP)             DC power

      ³o o³ 5   G  ÕÍÍÍÍÍÍÍÍÍÍ ÍÍÍÍÍÍÍÍÍ¸ /Ä5ÄGÄGÄ12\

     Íµo oÆµ0 0 0ÆÍµ::::::::::ú::::::::1ÆÍµ 0 0 0 0 ÆÍ     ...Ä¿

       1 ³    12   ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍ¾ ÀÄÄÄÄÄÄÄÄÄÙ          ³

       ³ ³         (BOTTOM)   À(pin 20 missing for    (Factory test jumper

       ³ ³                      keying purposes)        block located at side)

       ³ ³

     OFF OFF  Drive is Master (single)

     OFF ON   Drive is Master with Slave present (dual)

     ON  OFF  Drive is Slave (dual)

     ON  ON   Cable Select (requires jumper also on pins 6 and 8 of J8)

     Spare jumper may be stored on pins 1 and 3.

ST-3550A

Front View              ÚÄÄÄÄÄÄÄÄÄÄ Cable Select (pins 6 and 8)

                        ³ ÚÄÄÄÄÄÄÄÄ Spindle Clock to I/O pin-28 (pins 8 and 10)

                        ³ ³ ÚÄÄÄÄÄÄ Ext. Spindle Clock Synch

               J8       6-8 ³          (see note below)

     (TOP)          o o o o-o o o+

               ÍÍÍÍ o Í o o o o o-ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

     (BOTTOM)      1ÀÄÄÄÂÄÙ ³ ³ ³

                        ³   ³ ³ ÀÄÄ Remote LED

                        ³   ³ ÀÄÄÄÄ Reserved

                        ³   ÀÄÄÄÄÄÄ Clock Ground for Ext. SPSYNC

                        ³         Ú Reserved

                        ÀÄÄÄÄÄÄÄÄÄ´ Reserved

                                  ³ Reserved pin-3 removed for key

                                  À Reserved

 Spindle Sync note: Enable pin-28 (SPSYNC-) of the AT interface connector

                    by installing a jumper on pins 8 and 10 of the options

                    jumper block.

                    Connect a twisted pair to pins 9 and 10 of the options

                    jumper block to transmit and receive SPSYNC-.

                             ST-3550A

                             Medalist 455

       UNFORMATTED CAPACITY _____________________

       FORMATTED CAPACITY (xx SECTORS) __________452.41

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL/LOGICAL______________

       HEADS ______PHYSICAL/LOGICAL______________5

       DISCS (3.5 in) ___________________________3

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______21.6 to 36.3

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________4,500

       AVERAGE LATENCY (mSEC) ___________________6.67

       BUFFER ___________________________________256 Kbyte SeaCache

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________AT

       SECTORS PER DRIVE ________________________883,624

       BYTES PER CYLINDER _______________________

       TPI (TRACKS PER INCH) ____________________2,400

       BPI (BITS PER INCH) ______________________52,602

       AVERAGE ACCESS (ms) ______________________12

       SINGLE TRACK SEEK (ms) ___________________<4

       MAX FULL SEEK (ms) _______________________32

       MTBF (power-on hours) Office _____________250,000

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _1.9

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________5.4

                           IDLE _________________3.15

                           STANDBY ______________0.9

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     1.00/25.4

                        Width  (inches/mm):     4.02/102.1

                        Depth  (inches/mm):     5.77/146.6

                        Weight    (lbs/kg):     1.5/0.68

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:  1018 cyl, 14 heads, 62 sectors = 452,415,488

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (08/09/94)


ST3600 2x3 jumpers
ST-3600A

Rear View

PCB with 2x3 style jumper block J6 on right side near rear.

         ^^^

                     J5 Drive ID Select and     ³    ³ J6 (located on side

                     Configuration Select Header³    ³ near rear)

                     ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÙ    ÀÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄ

                                           ³                   o o o1

                                           ³            +5v ---o o o

 40-pin I/O Cable Connector                ³                  ÍÍÍÍÍÍÍÍ

   ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸             o o o o o1               1 2 3

 J1³::::::::::ù::::::::1³ /ÄÄÄÄÄÄÄÄÄ\ o o o o o     Remote LEDÃÙ ³ À´Reserved

  ÍÏÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÏÍ³ 0 0 0 0 ³ÍÍÍÍÍÍÍÍÍÍÍ    ConnectionÙ  ÀÄÄ´Jumper

  (pin 20 missing for     ÀÄ5ÄGÄGÄ12Ù (see below)Ä¿                 ÀPosition

   keying purposes)         DC Power     ÚÄÄÄÄÄÄÄÄÙ

                                         ³

                    ÚÄJ5ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄ¿

                    ³        ÚÄ¿     ÚÄ¿ ÚÄ¿   1      ³

                    ³        ³o³  o-C´oÃE´oÃG-o       ³

                    ³        ³oÃB-o  ³o³ ³o³  o       ³

                    ³        ÀAÙ     ÀDÙ ÀFÙ  H       ³

                    ³   ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ    ³

                    ÀÄÄDefaults shown in solid linesÄÄÙ

J5 Jumper  Function Description (* indicates default)

ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ

A    B     (A=vertical, pins 9 & 10; B=horizontal, pins 8 & 10)

OFF  OFF   Drive is the slave (Drive 1).

OFF  ON    Drive is the master (Drive 0) with slave (Drive 1) present.

ON*  OFF   Drive is the master (Drive 0).

C          (C=horizontal, pins 5 & 7)

ON         Slave (Drive 1) Present is connected to J1 pin 39. Jumpers

           "D" or "E" cannot be installed if jumper "C" is installed.

OFF        Slave Present is not connected to J1 pin 39.

D          (D=vertical, pins 5 & 6)

ON*        DASP- is connected to J1 pin 39. Jumpers "C", "D", "F", or

           "G" cannot be installed if jumper "E" is installed.

OFF        REFSIG is not connected to J1 pin 39.

E          (E=horizontal, pins 3 & 5)

ON         REFSIG is connected to J1 pin 39. Jumpers "C", "D", "F",

           or "G" cannot be installed if jumper "E" is installed.

OFF        REFSIG is not connected to J1 pin 39.

F          (F=vertical, pins 3 & 4)

ON*        No external reference for REFSIG. Jumpers "E", "G", or "H"

           cannot be installed if jumper "F" is installed.

OFF        This location provides a port for external connection of

           the synchronized spindle reference signal (pin 3) and

           ground (pin 4).

G          (G=horizontal, pins 1 & 3)

ON         REFSIG is connected to J1 pin 28. Jumpers "E" or "F" cannot

           be installed if jumper "G" is installed.

OFF        REFSIG is not connected to J1 pin 28.

H          (H=vertical, pins 1 & 2)

ON         Drive implements "CSEL" (Cable Select line in I/O connector)

           feature.  Implementation not defined yet.  Jumpers A and B

           not used if jumper H is on.  (This jumper is mutually

           exclusive with jumper "G").

OFF*       Drive select is based on use of jumper A or B.

J6 Jumper  Function Description (2x3 jumper block)

-------------------------------------------------

     1     Remote LED cable connection. Pin 6 is connected to +5v through a

           147 ohm resistor. Pin 5 is the LED driver.

     2     Reserved jumper position.

     3     Reserved jumper position.

=======================================================================


ST3600 2x2 jumpers
ST-3600A

Rear View

PCB with 2x2 style jumper block J6 on right side near rear.

         ^^^

                 ÚÄ 40 pin AT Interface I/O connector

 Mini Power      ³

  Connector      ³                                   side

      ÚÄÁÄ¿      ³  (TOP)             DC power       J6   1

      G   5  ÕÍÍÍÍÍÍÍÍÍÍ ÍÍÍÍÍÍÍÍÍ¸ /Ä5ÄGÄGÄ12\         o o     (front)

   ÍÍµ0 0 0ÆÍµ::::::::::ú::::::::1ÆÍµ 0 0 0 0 ÆÍ     ÍÍ o o ÍÍÍ........

        12   ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍ¾ ÀÄÄÄÄÄÄÄÄÄÙ         ³ ÀRÄ Spindle sync

             (BOTTOM)   À(pin 20 missing for            ³     disable

                          keying purposes)              ÀÄÄLÄ Remote LED cable

                                                              connection

                    J5

  (back of drive)

              (A) 1 o-o  ÄÄÄ Single= (A) ON & (B) OFF, Slave= (A) OFF & (B) OFF

              (B) 3 o-o  ÄÄÄ Master with Slave = (A) OFF & (B) ON

             Ú(C)   o-o  ÄÄÄÄÄÄ DASP- in on pin 39

          ÚÄÄÅ(D)   o-o  ÄÄÄ J5 pins 7 & 8  ÄÄ No spindle synch reference

    detail³  À(E)   o-o  ÄÄÄÄÄÄ Cable select on pin 28

    below ³   (F)   o-o  ÄÄÄÄÄÄ Cable select option enabled

          ³   (G)   o-o  ÄÄÄÄÄÄ Option #1 enabled

          ³

          ³

          ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

          ³ (C)   o-o¿ ÄÄÄÄÄÄ DASP- in on pin 39                           ³

          ³ (H)      H ÄÄÄ J5 pins 6 & 8  ÄÄ SPSYNC on I/O J1 pin 39       ³

          ³ (D)   o-oØ ÄÄÄ J5 pins 7 & 8  ÄÄ No spindle synch reference    ³

          ³ (J)      J ÄÄÄ J5 pins 8 & 10 ÄÄ SPSYNC on I/O J1 pin 28       ³

          ³ (E)   o-oÙ ÄÄÄÄÄÄ Cable select on pin 28                       ³

          ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

J5 Jumper  Funtion Description (* indicates default)

ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ

A    B

OFF  OFF   Drive is the slave (Drive 1).

OFF  ON    Drive is the master (Drive 0) with slave (Drive 1) present.

ON*  OFF   Drive is the master (Drive 0).

C

ON*        DASP- is brought into drive through I/O pin 39

OFF        DASP- is not used and is not connected to drive.  I/O cable

           pin 39 may be used for spindle synch if jumper H is

           installed.

D

ON*        No spindle synch reference is used.  See also J6 position

           R, which duplicates the function of this jumper.  Either J5

           D or J6 R may be jumpered to signify no synch spindle

           reference is used.

OFF        Spindle synch reference signal cable may be plugged onto

           this jumper, J6 R or spinle synch ref may be taken from I/O

           cable pin 28 (if jumper J installed) or pin 39 (if jumper H

           installed).

E

ON         I/O connector J1 pin 28 is used for Cable Select function.

           Jumper F must also be installed to implement cable select.

OFF        J1 pin 28 not used for Cable Select function.

F

ON         Cable select option enabled.  Jumper E must also be

           installed to enable cable select.

OFF        Cable select option not enabled.

G

ON         Optional feature #1 enabled

OFF        Optional feature #1 not enabled

H

ON         Spindle synch reference signal is on I/O connector J1 pin 39.

OFF        Spindle synch reference signal is not on J1 pin 39.

J

ON         Spindle synch reference signal is on I/O connector J1 pin 28.

OFF        Spindle synch reference signal is not on J1 pin 28.

J6 Jumper  Funtion Description (2x2 jumper block)

-------------------------------------------------

L          Remote LED cable connection (Not a jumper position). Do not

           install a jumper if remote LED cable is not plugged here.

R

ON         No spindle synch reference is used.  See also J5 posistion

           D, which duplicates the function of this jumper position.

           Either J5D or J6 R may be used to signify no spindle synch

           reference is used.

OFF        Spindle sync reference signal cable may be plugged into

           this jumper position, J5 D or the spindle synch reference

           may be taken from I/O cable pin 28 (if jumper J installed)

           or pin 39 (if jumper H installed).


ST-3600A

                            ST-3600A

       ST-3600A Jumpers w/2x3 right side jumpers

       ST-3600A Jumpers w/2x2 right side jumpers

       UNFORMATTED CAPACITY (MB) ________________617

       FORMATTED CAPACITY (xx SECTORS) (MB) _____528

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________13,104

       CYLINDERS __PHYSICAL______________________1,872 (user)

       HEADS ______PHYSICAL______________________7

       DISCS (3.5 in) ___________________________4

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       TRANSFER RATE INTERNAL (mbits/sec)________19.6 to 36.0

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________4,535

       AVERAGE LATENCY (mSEC) ___________________6.61

       BUFFER ___________________________________256 KByte SeaCache

        Adaptive cache

       INTERFACE ________________________________AT BUS

       SECTORS PER DRIVE ________________________

       TPI (TRACKS PER INCH) ____________________2150

       AVERAGE ACCESS (ms) (read/write)__________10.5/11.2

       SINGLE TRACK SEEK (ms) ___________________2

       MAX FULL SEEK (ms) _______________________23

       MTBF (power-on hours) ____________________200,000

       POWER REQUIREMENTS: +12V START-UP (amps) _1.5

                           +12V TYPICAL (amps) __0.4

                           +5V TYPICAL (amps) ___0.2

                           TYPICAL (watts) ______5

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     1.00/25.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.75/146.1

                        Weight   (lbs/kg):      1.8/0.80

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:  1024 cyl, 16 heads, 63 sectors = 528,482,304

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (01/21/93)


ST-3630A
ST-3630A (Medalist 630xe AT)

                                 TOP               4-pin DC

                                                   Power

                           ÕÍÍÍÍÍÍÍÍÍÍ ÍÍÍÍÍÍÍÍÍ¸/Ä4Ä3Ä2Ä1Ä\

                 ÍÍÍÍÍÍÍÍÍÍµ::::::::::ù::::::::1Æ³ 0 0 0 0 ÆÍ

                           ÔÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍ¾ÀÄ5ÄGÄGÄ12Ù

                              (pin-20 missing

                               for keying purposes)

    (Options jumper located on bottom)            (back of drive)

       Master OFF, Slave ON  ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 8o-o7  ÄÄÄÄÄÄÄÄÄÄÄÄÄÄ  0  0  1

       Slave Present ON (standard) ÄÄÄÄÄÄÄÄÄ  o-o   ÄÄÄÄÄÄÄÄÄÄÄÄÄÄ  0  1  0

                                  ÚÄÄÄ - - -  o-o                   ³  ³  ³

       Cable Select ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ ÚÄ Ä Ä Ä 2o-o1                  S  M  S

       Slave Present ON for ÄÄÄÄÄÄÄÄÙ            (front of drive)   i  a  l

        drives that don't have                                      n  s  a

        the -DASP signal (use                                       g  t  v

        only ONE of the Slave                                       l  e  e

        Present choices)                                            e  r

       Spare jumper stored on pins 1-3

                             ST-3630A

                             Medalist 630xe

       FORMATTED CAPACITY _______________________631.1

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________

       HEADS ______PHYSICAL______________________4

       DISCS (3.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (Mbits/sec) _______22.9 to 39.6

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 11.1

       PIO MODE _________________________________3

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________3,811

       AVERAGE LATENCY (mSEC) ___________________7.87

       BUFFER ___________________________________120 Kbyte

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________ATA

       SECTORS PER DRIVE (LBA mode) _____________1,232,784

       TPI (TRACKS PER INCH) ____________________3,384

       BPI (KBITS PER INCH) _____________________68

       AVERAGE ACCESS (ms) ______________________14

       SINGLE TRACK SEEK (ms) ___________________5

       MAX FULL SEEK (ms) _______________________34

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating (Read/Write) __________2

                abnormal ________________________10

                nonoperating ____________________75

       ACOUSTICS (dBA) (typ/max) ________________29/33

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _1.2

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________5.23

                           IDLE _________________1.86

                           STANDBY ______________0.725

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):  1.02/25.4

                        Width  (inches/mm):  4.02/102.1

                        Depth  (inches/mm):  5.78/146.6

                        Weight    (lbs/kg):   1.3/0.59

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       1223 cyl, 16 heads, 63 sectors = 631,185,408

                       DOS operating systems may require a system bios

                       that accepts larger values for the CMOS head

                       parameter which lowers cylinders below 1024:

        611 cyl, 32 heads, 63 sectors = 630,669,312

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software, system BIOS which supports LBA mode

                       or bios driven host adapters. Otherwise,

                       capacity may be limited to:

       1024 cyl, 16 heads, 63 sectors = 528,482,304

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (03/13/96)


ST-3635A
ST-3635A, Cabo 635 AT (Cabo CFS635A)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

 Optional Mini Power

 Power Connector      J2 40 pin I/O Cable Connection

    ÚÄÁÄ¿             ³

    G   5  ÕÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

  Íµ0 0 0ÆÍµ::::::::::ú::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

      12   ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                      ³

                      ÀÄÄÄ pin-20 removed

     ST-3635A

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º              ÚÄÄÄÄ  Not Used

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼              ³

                                ³ ÚÄÄ  Master ON, Slave OFF (C/D)

                                ³ ³

    (TOP)         o o o o o   o o o1

Option Block   ÍÍÍ  o o o o   o o o2ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

   (BOTTOM)       ÀÄÄÄÂÄÄÄÙ   ³

                      ³       ³

          Reserved ÄÄÄÙ       ³

          Cable Select  ÄÄÄÄÄÄÙ

                             ST-3635A

                    Cabo 635 AT (Cabo CFS635A)

       FORMATTED CAPACITY _______________________635

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________3640

       HEADS ______PHYSICAL______________________3

       DISCS (3.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (Mbits/sec) _______29.9 to 55.2

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 16.6

       PIO MODE _________________________________4

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________3600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________64K

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________ATA

       SECTORS PER DRIVE (LBA mode) _____________

       TPI (TRACKS PER INCH) ____________________3849

       BPI (KBITS PER INCH) _____________________77K

       AVERAGE ACCESS (ms) ______________________14

       SINGLE TRACK SEEK (ms) ___________________3

       MAX FULL SEEK (ms) _______________________26

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating (Read/Write) __________5

                abnormal ________________________

                nonoperating ____________________75

       ACOUSTICS (bels) (typ/max) _______________38/

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________3.5

                           IDLE _________________3.5

                           STANDBY ______________<1.0

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):  1.00/25.4

                        Width  (inches/mm):  4.00/101.6

                        Depth  (inches/mm):  5.75/146.1

                        Weight    (lbs/kg):   1.3/0.59

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       1238 cyl, 16 heads, 63 sectors = 638,926,848

                       DOS operating systems may require a system bios

                       that accepts larger values for the CMOS head

                       parameter which lowers cylinders below 1024:

        619 cyl, 32 heads, 63 sectors = 638,926,848

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software, system BIOS which supports LBA mode

                       or bios driven host adapters. Otherwise,

                       capacity may be limited to:

       1024 cyl, 16 heads, 63 sectors = 528,482,304

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (09/09/96)


ST-3636A
ST-3636A, Medalist 636 AT (Lapaz CFS636A)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                   J2  40 pin I/O Cable Connection

                   ³

        ÕÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍ1Í/ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

       Íµ::::::::::ú::::::::1³ : : : ³ 0 0 0 0 ³ÍÍ

        ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍÏÍ³Í³Í³ÍÀÄ5ÄGÄGÄ12Ù    BOTTOM

                   ³           ³ ³ ³

   pin-20 removed ÄÙ           ³ ³ ÀÄÄ Reserved

                               ³ ÃÄÄÄÄ Slave Present (when Master ON)

                               ³ ÀÄÄÄÄ Cable Select (when Slave OFF)

                               ÀÄÄÄÄÄÄ Master ON, Slave OFF

                             ST-3636A

                  Medalist 636 AT (Lapaz CFS636A)

       FORMATTED CAPACITY _______________________640.47

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________4893

       HEADS ______PHYSICAL______________________2

       DISCS (3.5 in) ___________________________1

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (Mbits/sec) _______33.6 to 67.2

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 16.6

       PIO MODE _________________________________4

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________4500

       AVERAGE LATENCY (mSEC) ___________________6.67

       BUFFER ___________________________________64K

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________ATA

       SECTORS PER DRIVE (LBA mode) _____________1,250,928

       TPI (TRACKS PER INCH) ____________________4973

       BPI (KBITS PER INCH) _____________________88.4

       AVERAGE ACCESS (ms) ______________________12.5

       SINGLE TRACK SEEK (ms) ___________________3

       MAX FULL SEEK (ms) _______________________24

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating (Read/Write) __________5

                abnormal ________________________

                nonoperating ____________________75

       ACOUSTICS (bels) (typ/max) _______________38/

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _1.2

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________4.6

                           IDLE _________________3.5

                           STANDBY ______________1.0

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):  1.00/25.4

                        Width  (inches/mm):  4.00/101.6

                        Depth  (inches/mm):  5.75/146.1

                        Weight    (lbs/kg):   1.3/0.59

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       1241 cyl, 16 heads, 63 sectors = 640,475,136

                       DOS operating systems may require a translation

                       that uses larger values for the CMOS head

                       parameter which lowers cylinders below 1024:

        620 cyl, 32 heads, 63 sectors = 639,959,040

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software, system BIOS which supports LBA mode

                       or bios driven host adapters. Otherwise,

                       capacity may be limited to:

       1024 cyl, 16 heads, 63 sectors = 528,482,304

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (09/09/96)


ST-3655A
ST-3655A (Medalist 540)

Rear View

          Mini Power   ÚÄ 40 pin AT Interface I/O connector

           Connector   ³

       2    ÚÄÁÄ¿      ³  (TOP)             DC power

      ³o o³ 5   G  ÕÍÍÍÍÍÍÍÍÍÍ ÍÍÍÍÍÍÍÍÍ¸ /Ä5ÄGÄGÄ12\

     Íµo oÆµ0 0 0ÆÍµ::::::::::ú::::::::1ÆÍµ 0 0 0 0 ÆÍ     ...Ä¿

       1 ³    12   ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍ¾ ÀÄÄÄÄÄÄÄÄÄÙ          ³

       ³ ³         (BOTTOM)   À(pin 20 missing for    (Factory test jumper

       ³ ³                      keying purposes)        block located at side)

       ³ ³

     OFF OFF  Drive is Master (single)

     OFF ON   Drive is Master with Slave present (dual)

     ON  OFF  Drive is Slave (dual)

     ON  ON   Cable Select (requires jumper also on pins 6 and 8 of J8)

     Spare jumper may be stored on pins 1 and 3.

ST-3655A

Front View              ÚÄÄÄÄÄÄÄÄÄÄ Cable Select (pins 6 and 8)

                        ³ ÚÄÄÄÄÄÄÄÄ Spindle Clock to I/O pin-28 (pins 8 and 10)

                        ³ ³ ÚÄÄÄÄÄÄ Ext. Spindle Clock Synch

               J8       6-8 ³          (see note below)

     (TOP)          o o o o-o o o+

               ÍÍÍÍ o Í o o o o o-ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

     (BOTTOM)      1ÀÄÄÄÂÄÙ ³ ³ ³

                        ³   ³ ³ ÀÄÄ Remote LED

                        ³   ³ ÀÄÄÄÄ Reserved

                        ³   ÀÄÄÄÄÄÄ Clock Ground for Ext. SPSYNC

                        ³         Ú Reserved

                        ÀÄÄÄÄÄÄÄÄÄ´ Reserved

                                  ³ Reserved pin-3 removed for key

                                  À Reserved

 Spindle Sync note: Enable pin-28 (SPSYNC-) of the AT interface connector

                    by installing a jumper on pins 8 and 10 of the options

                    jumper block.

                    Connect a twisted pair to pins 9 and 10 of the options

                    jumper block to transmit and receive SPSYNC-.

                             ST-3655A

                             Medalist 540

       UNFORMATTED CAPACITY _____________________

       FORMATTED CAPACITY (xx SECTORS) __________528.4

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL/LOGICAL______________

       HEADS ______PHYSICAL/LOGICAL______________5

       DISCS (3.5 in) ___________________________3

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______21.79 to 36.56

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________4,500

       AVERAGE LATENCY (mSEC) ___________________6.67

       BUFFER ___________________________________256 Kbyte SeaCache

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________AT

       SECTORS PER DRIVE ________________________1,032,192

       BYTES PER CYLINDER _______________________

       TPI (TRACKS PER INCH) ____________________3,000

       BPI (BITS PER INCH) ______________________53,192

       AVERAGE ACCESS (ms) ______________________12

       SINGLE TRACK SEEK (ms) ___________________<4

       MAX FULL SEEK (ms) _______________________32

       MTBF (power-on hours) Office _____________250,000

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _1.9

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________4.9

                           IDLE _________________2.5

                           STANDBY ______________0.3

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     1.00/25.4

                        Width  (inches/mm):     4.02/102.1

                        Depth  (inches/mm):     5.77/146.6

                        Weight    (lbs/kg):     1.5/0.68

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:  1024 cyl, 16 heads, 63 sectors = 528,428,304

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (08/09/94)


ST-3660A
ST-3660A (Medalist 545xe)

                                 TOP               4-pin DC

                                                   Power

                           ÕÍÍÍÍÍÍÍÍÍÍ ÍÍÍÍÍÍÍÍÍ¸/Ä4Ä3Ä2Ä1Ä\

                 ÍÍÍÍÍÍÍÍÍÍµ::::::::::ù::::::::1Æ³ 0 0 0 0 ÆÍ

                           ÔÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍ¾ÀÄ5ÄGÄGÄ12Ù

                              (pin-20 missing

                               for keying purposes)

    (Options jumper located on bottom)            (back of drive)

       Master OFF, Slave ON  ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 8o-o7  ÄÄÄÄÄÄÄÄÄÄÄÄÄÄ  0  0  1

       Slave Present ON (standard) ÄÄÄÄÄÄÄÄÄ  o-o   ÄÄÄÄÄÄÄÄÄÄÄÄÄÄ  0  1  0

                                  ÚÄÄÄ - - -  o-o                   ³  ³  ³

       Cable Select ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ ÚÄ Ä Ä Ä 2o-o1                  S  M  S

       Slave Present ON for ÄÄÄÄÄÄÄÄÙ            (front of drive)   i  a  l

        drives that don't have                                      n  s  a

        the -DASP signal (use                                       g  t  v

        only ONE of the Slave                                       l  e  e

        Present choices)                                            e  r

       Spare jumper stored on pins 1-3

                             ST-3660A

                             Medalist 545xe

       FORMATTED CAPACITY (xx SECTORS) __________545.5

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________

       CYLINDERS ________________________________(user)

       HEADS _(PHYSICAL)_________________________4

       DISCS (3.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______19.5 to 35.8

       EXTERNAL TRANSFER RATE (mbytes/sec) ______11.1

       SPINDLE SPEED (RPM) ______________________3,811

       AVERAGE LATENCY (mSEC) ___________________7.87

       BUFFER ___________________________________120 Kbyte

        Multisegmented, SeaCache

       INTERFACE ________________________________AT

       SECTORS PER DRIVE ________________________1,065,456

       TPI (TRACKS PER INCH) ____________________3,285

       BPI (BITS PER INCH) ______________________61,700

       FCI (FLUX CHANGES PER INCH) ______________46,390

       AVERAGE ACCESS (ms) ______________________14

       SINGLE TRACK SEEK (ms) ___________________5

       MAX FULL SEEK (ms) _______________________34

       MTBF (power-on hours) Office _____________300,000

       ACOUSTICS (typ/max dBA) __________________29/33

       SHOCK (Normal/Abnormal/Nonoper.) _________2/10/75

       POWER REQUIREMENTS: +12V START-UP (amps) _1.1

                            +5V START-UP (amps) _0.35

                                START-UP (watts)_8.5

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________5.23

                           IDLE _________________1.865

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     1.00/25.4

                        Width  (inches/mm):     4.02/102.1

                        Depth  (inches/mm):     5.77/146.6

                        Weight    (lbs/kg):     1.3/0.59

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       1057 cyl, 16 heads, 63 sectors = 545,513,472

                       DOS operating systems may require a system bios

                       that accepts or translates larger values for the

                       CMOS head parameter which lowers cylinders below

                       1024:

        528 cyl, 32 heads, 63 sectors = 544,997,376

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software, system BIOS which supports LBA mode

                       or bios driven host adapters. Otherwise,

                       capacity may be limited to:

       1024 cyl, 16 heads, 63 sectors = 528,482,304

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (08/17/94)


ST-3780A
ST-3780A (Medalist 720)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  Type A configuration

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                40 pin I/O Cable Connection J1

                ³

           ÕÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     ÍÍÍÍÍÍµ::::::::::ú::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

           ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                      ³

                      ÀÄÄÄ pin-20 removed

   ST-3780A

 ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

 º  Front View  º  Type A configuration has ONLY these jumpers on the drive.

 ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

                        ÚÄÄÄÄÄÄÄÄÄÄÄÄÄ Slave pins 1-2

                        ³ ÚÄÄÄÄÄÄÄÄÄÄÄ Master with Slave Present pins 3-4

                        ÃÄÅÄÄÄÄÄÄÄÄÄÄÄ Cable Select pins 1-2 AND 3-4

                        ³ ³ ÚÄÄÄÄÄÂÄÄÄ Dual-drive emulation pins 5-6 AND

  (TOP)                 ³ ³ ³     ³     pins 11-12

                        ³ ³ ³     ³ ÚÄ Remote LED 13-, 14+

                        ³ ³ ³     ³ ³

  J8                   2o o o o o o o14

Option Block   ÍÍÍÍÍÍÍÍ1o o o o o o o ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPWAÍÍÍÍÍÍÍÍÍÍ

                        ³   ³ ³ ³

                        ³   ³ ÀÄÁÄ Reserved

  (BOTTOM)              ÀÄÄÄÁÄÄÄÄÄ Master/Slave timing protocol changes to

                                    PDIAG.  Makes the drive compatible with

                                    some drives as the slave. Must be used

                                    with pins 1-2 (Slave)

                Spare jumpers stored on pins 1-3 and 5-7, as shipped.

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  Type B configuration

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

  J5            40 pin I/O Cable Connection J1

     2o o       ³

     1o o  ÕÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     ÍØÍØÍÍµ::::::::::ú::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

      ³ ³  ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

      ³ ³             ³

      ³ ³             ÀÄÄÄ pin-20 removed

      ³ ³

    OFF OFF -- One drive only

     ON OFF -- Drive is slave

    OFF ON  -- Drive is Master with slave present

     ON ON  -- Cable Select (must also jumper pins 6 and 8 on J8)

    SPARE   -- stored on pins 1-3

   ST-3780A

 ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

 º  Front View  º  Type B configuration

 ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

                        ÚÄÄÄÄÄÄÄÄÄÄÄÄÄ Spare - as shipped

                        ³    ÚÄÄÄÄÄÄÄÄ Cable Select pins 6-8

  (TOP)                 ³    ³   ÚÄÄÄÄ Reserved

                        ³    ³   ³  ÚÄ Remote LED 13-, 14+

                        ³    ³  ÚÁ¿ ³

  J8                    o o oÁo o o o14

Option Block   ÍÍÍÍÍÍÍÍ1o   o o o o o ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPWAÍÍÍÍÍÍÍÍÍÍ

                          ³

  (BOTTOM)                ÀÄÄ pin 3 missing

          Cable Select also requires Slave and Slave Present jumpers ON.

    ST-3780A

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º RIGHT SIDE VIEW º  Type B configuration

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

              ÚÄÄÄ J6 Dual Drive emulation pins 1-2 AND pins 3-4

             ÚÁ¿      (spare jumper stored on pins 1-3, as shipped)

            2o o

BACK   ÕÍ¸  1o o                                 TOP (HDA)  FRONT

 OF      ÆÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾     ³                                 BOTTOM     DRIVE

               ³

               ÀÄ Pins 3-4 jumpered alone changes the Master/Slave

                  timing protocol to PDIAG.  Makes the drive compatible

                  with somes drives as the slave.  Must be used with pins

                  1-2 (Slave) on J5 Master/Slave jumper block.

Note: If the Dual Drive Emulation jumper is used, then TWO CMOS drive

      types will be required and only ONE drive per cable is allowed.

                             ST-3780A

                             Medalist 720

       UNFORMATTED CAPACITY _____________________

       FORMATTED CAPACITY (xx SECTORS) __________722

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________3,876

       HEADS ______PHYSICAL______________________4

       DISCS (3.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (Mbits/sec) _______27.9 to 47.24

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 16.6

       PIO MODE _________________________________4

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________4,500

       AVERAGE LATENCY (mSEC) ___________________6.67

       BUFFER ___________________________________256 Kbyte SeaCache

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________AT

       SECTORS PER DRIVE ________________________1,410,864

       TPI (TRACKS PER INCH) ____________________4,250

       BPI (BITS PER INCH) ______________________70,101

       AVERAGE ACCESS (ms) (read/write) _________12/14

       SINGLE TRACK SEEK (ms) ___________________3.5

       MAX FULL SEEK (ms) _______________________25

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating (Read/Write) __________2

                nonoperating ____________________75

       ACOUSTICS (typ/max dBA) __________________30/36

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _1.9

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________6.6

                           IDLE _________________2.75

                           STANDBY ______________1

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     1/25.4

                        Width  (inches/mm):  4.02/102.1

                        Depth  (inches/mm):  5.77/146.6

                        Weight    (lbs/kg):   1.5/0.68

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       1399 cyl, 16 heads, 63 sectors = 722,018,304

                       DOS operating systems may require a system bios

                       that accepts or translates larger values for the

                       CMOS head parameter which lowers cylinders below

                       1024:

        699 cyl, 32 heads, 63 sectors = 721,502,208

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software, system BIOS which supports LBA mode

                       or bios driven host adapters. Otherwise,

                       capacity may be limited to:

       699 cyl, 16 heads, 63 sectors = 360,751,104 (Master)

       699 cyl, 16 heads, 63 sectors = 360,751,104 (Slave see Dual

                       Drive emulation jumper)

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (05/14/95)


ST-3850A
ST-3850A (Medalist 850xe AT)

                                 TOP               4-pin DC

                                                   Power

                           ÕÍÍÍÍÍÍÍÍÍÍ ÍÍÍÍÍÍÍÍÍ¸/Ä4Ä3Ä2Ä1Ä\

                 ÍÍÍÍÍÍÍÍÍÍµ::::::::::ù::::::::1Æ³ 0 0 0 0 ÆÍ

                           ÔÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍ¾ÀÄ5ÄGÄGÄ12Ù

                              (pin-20 missing

                               for keying purposes)

    (Options jumper located on bottom)            (back of drive)

       Master OFF, Slave ON  ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 8o-o7  ÄÄÄÄÄÄÄÄÄÄÄÄÄÄ  0  0  1

       Slave Present ON (standard) ÄÄÄÄÄÄÄÄÄ  o-o   ÄÄÄÄÄÄÄÄÄÄÄÄÄÄ  0  1  0

                                  ÚÄÄÄ - - -  o-o                   ³  ³  ³

       Cable Select ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ ÚÄ Ä Ä Ä 2o-o1                  S  M  S

                   Reserved ÄÄÄÄÄÄÄÄÙ            (front of drive)   i  a  l

                                                                    n  s  a

       Spare jumper stored on pins 1-3                              g  t  v

                                                                    l  e  e

                                                                    e  r

                             ST-3850A

                          Medalist 850xe

       FORMATTED CAPACITY _______________________850.5

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________

       HEADS ______PHYSICAL______________________4

       DISCS (3.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (Mbits/sec) _______23.1 to 42.3

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 11.1

       PIO MODE _________________________________3

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________3,811

       AVERAGE LATENCY (mSEC) ___________________7.87

       BUFFER ___________________________________120 Kbyte

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________ATA

       SECTORS PER DRIVE (LBA mode) _____________1,661,184

       TPI (TRACKS PER INCH) ____________________4,300

       BPI (KBITS PER INCH) _____________________70

       AVERAGE ACCESS (ms) ______________________14

       SINGLE TRACK SEEK (ms) ___________________5

       MAX FULL SEEK (ms) _______________________34

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating (Read/Write) __________2

                abnormal ________________________10

                nonoperating ____________________75

       ACOUSTICS (dBA) (typ/max) ________________29/33

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _1.2

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________5.23

                           IDLE _________________1.86

                           STANDBY ______________0.725

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):  1.02/25.4

                        Width  (inches/mm):  4.02/102.1

                        Depth  (inches/mm):  5.78/146.6

                        Weight    (lbs/kg):   1.3/0.59

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       1648 cyl, 16 heads, 63 sectors = 850,526,208

                       DOS operating systems may require a system bios

                       that accepts larger values for the CMOS head

                       parameter which lowers cylinders below 1024:

        824 cyl, 32 heads, 63 sectors = 850,526,208

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software, system BIOS which supports LBA mode

                       or bios driven host adapters. Otherwise,

                       capacity may be limited to:

       1024 cyl, 16 heads, 63 sectors = 528,482,304

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (03/13/96)


ST-3851A
ST-3851A, Cabo 851 AT (Cabo CFS850A)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

 Optional Mini Power

 Power Connector      J2 40 pin I/O Cable Connection

    ÚÄÁÄ¿             ³

    G   5  ÕÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

  Íµ0 0 0ÆÍµ::::::::::ú::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

      12   ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                      ³

                      ÀÄÄÄ pin-20 removed

     ST-3851A

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º              ÚÄÄÄÄ  Not Used

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼              ³

                                ³ ÚÄÄ  Master ON, Slave OFF (C/D)

                                ³ ³

    (TOP)         o o o o o   o o o1

Option Block   ÍÍÍ  o o o o   o o o2ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

   (BOTTOM)       ÀÄÄÄÂÄÄÄÙ   ³

                      ³       ³

          Reserved ÄÄÄÙ       ³

          Cable Select  ÄÄÄÄÄÄÙ

                             ST-3851A

                   Cabo 851 AT (Cabo CFS850A)

       FORMATTED CAPACITY _______________________850

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________3640

       HEADS ______PHYSICAL______________________4

       DISCS (3.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (Mbits/sec) _______29.5 to 54.9

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 16.6

       PIO MODE _________________________________4

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________3600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________64K

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________ATA

       SECTORS PER DRIVE (LBA mode) _____________

       TPI (TRACKS PER INCH) ____________________3849

       BPI (KBITS PER INCH) _____________________77K

       AVERAGE ACCESS (ms) ______________________14

       SINGLE TRACK SEEK (ms) ___________________3

       MAX FULL SEEK (ms) _______________________26

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating (Read/Write) __________5

                abnormal ________________________

                nonoperating ____________________75

       ACOUSTICS (bels) (typ/max) _______________38/

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________3.5

                           IDLE _________________3.5

                           STANDBY ______________<1.0

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):  1.00/25.4

                        Width  (inches/mm):  4.00/101.6

                        Depth  (inches/mm):  5.75/146.1

                        Weight    (lbs/kg):   1.3/0.59

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       1651 cyl, 16 heads, 63 sectors = 852,074,496

                       DOS operating systems may require a system bios

                       that accepts larger values for the CMOS head

                       parameter which lowers cylinders below 1024:

        825 cyl, 32 heads, 63 sectors = 851,558,400

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software, system BIOS which supports LBA mode

                       or bios driven host adapters. Otherwise,

                       capacity may be limited to:

       1024 cyl, 16 heads, 63 sectors = 528,482,304

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (09/09/96)


ST-3852A
ST-3852A, Medalist 850  AT (Belize CFA851A)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                   J2  40 pin I/O Cable Connection

                   ³

        ÕÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍ1Í/ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

       Íµ::::::::::ú::::::::1³ : : : ³ 0 0 0 0 ³ÍÍ

        ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍÏÍ³Í³Í³ÍÀÄ5ÄGÄGÄ12Ù    BOTTOM

                   ³           ³ ³ ³

   pin-20 removed ÄÙ           ³ ³ ÀÄÄ Reserved

                               ³ ÃÄÄÄÄ Slave Present (when Master ON)

                               ³ ÀÄÄÄÄ Cable Select (when Slave OFF)

                               ÀÄÄÄÄÄÄ Master ON, Slave OFF

                             ST-3852A

                         Medalist 850 AT

       FORMATTED CAPACITY _______________________852.59

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________

       HEADS ______PHYSICAL______________________2

       DISCS (3.5 in) ___________________________1

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (Mbits/sec) _______up to 88

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 16.6

       PIO MODE _________________________________4

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________4500

       AVERAGE LATENCY (mSEC) ___________________6.67

       BUFFER ___________________________________128K

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________Fast ATA-2

       SECTORS PER DRIVE (LBA mode) _____________1,665,216

       TPI (TRACKS PER INCH) ____________________

       BPI (KBITS PER INCH) _____________________

       AVERAGE ACCESS (ms) ______________________12

       SINGLE TRACK SEEK (ms) ___________________3

       MAX FULL SEEK (ms) _______________________

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating (Read/Write) __________5

                abnormal ________________________

                nonoperating ____________________75

       ACOUSTICS (dBA) (typ/max) _______________34/

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _1.4

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________4.9

                           IDLE _________________4.0

                           STANDBY ______________<1.0

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):  1.00/25.4

                        Width  (inches/mm):  4.00/101.6

                        Depth  (inches/mm):  5.75/146.1

                        Weight    (lbs/kg):   1.25/0.57

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       1652 cyl, 16 heads, 63 sectors = 852,590,592

                       DOS operating systems may require a translation

                       that uses larger values for the CMOS head

                       parameter which lowers cylinders below 1024:

        826 cyl, 32 heads, 63 sectors = 852,590,592

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software, system BIOS which supports LBA mode

                       or bios driven host adapters. Otherwise,

                       capacity may be limited to:

       1024 cyl, 16 heads, 63 sectors = 528,482,304

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (09/11/96)


ST-3853A
ST-3853A, Filepro 850 AT (Steamboat CFA850A)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

 Optional Mini Power

 Power Connector      J2 40 pin I/O Cable Connection

    ÚÄÁÄ¿             ³

    G   5  ÕÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

  Íµ0 0 0ÆÍµ::::::::::ú::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

      12   ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                      ³

                      ÀÄÄÄ pin-20 removed

     ST-3853A

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º              ÚÄÄÄÄ  Compatibility Mode

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼              ³        ATA ON, ISA OFF

                                ³

                                ³ ÚÄÄ  Master ON, Slave OFF (C/D)

                                ³ ³

    (TOP)         o o o o o   o o o1

Option Block   ÍÍÍ  o o o o   o o o2ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

   (BOTTOM)       ÀÄÄÄÂÄÄÄÙ   ³

                      ³       ³

          Reserved ÄÄÄÙ       ³

          Cable Select  ÄÄÄÄÄÄÙ

                             ST-3853A

                 Filepro 850 AT (Steamboat CFA850A)

       FORMATTED CAPACITY _______________________852.5

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________3659

       HEADS ______PHYSICAL______________________4

       DISCS (3.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (Mbits/sec) _______31.3 to 55.3

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 10

       PIO MODE _________________________________3

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________4500

       AVERAGE LATENCY (mSEC) ___________________6.7

       BUFFER ___________________________________256K

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________ATA

       SECTORS PER DRIVE (LBA mode) _____________

       TPI (TRACKS PER INCH) ____________________3833

       BPI (KBITS PER INCH) _____________________77.3K

       AVERAGE ACCESS (ms) ______________________<12

       SINGLE TRACK SEEK (ms) ___________________3

       MAX FULL SEEK (ms) _______________________26

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating (Read/Write) __________5

                abnormal ________________________

                nonoperating ____________________75

       ACOUSTICS (bels) (typ/max) _______________4.3/

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _1.2

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________5.6

                           IDLE _________________3.9

                           STANDBY ______________<1.0

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):  1.00/25.4

                        Width  (inches/mm):  4.00/101.6

                        Depth  (inches/mm):  5.75/146.1

                        Weight    (lbs/kg):   1.25/0.57

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       1652 cyl, 16 heads, 63 sectors = 852,590,592

                       DOS operating systems may require a system bios

                       that accepts larger values for the CMOS head

                       parameter which lowers cylinders below 1024:

        826 cyl, 32 heads, 63 sectors = 852,590,592

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software, system BIOS which supports LBA mode

                       or bios driven host adapters. Otherwise,

                       capacity may be limited to:

       1024 cyl, 16 heads, 63 sectors = 528,482,304

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (12/18/96)


ST-51080A
ST-51080A (Medalist 1080sl, formerly Decathlon 1080 AT)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

         40 pin I/O Cable Connection

         ³

    J1     ÕÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     ÍÍÍÍÍÍµ::::::::::ú::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

           ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                      ³

                      ÀÄÄÄ pin-20 removed

    ST-51080A

 ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

 º  Front View  º

 ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

                 ÚÄÄÄÄÄÄ Master OFF, Slave ON

                 ³Ú Ä Ä Ä (spare jumper stored on pins 2-4 default)

                 ³ ÚÄÄÄÄ Slave Present (used on Master)

                 ³³³ ÚÄÄ Master/Slave timing protocol causes Master

  (TOP)          ³ ³ ³    drive to wait up to 31 seconds for slave

                 ³³³ ³    to respond. (default ON, OFF=5 secs.)

                 ³ ³ ³

  J2             oÁo o o o o12

Option Block   Í1o o o o o o ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPWAÍÍÍÍÍÍÍÍÍÍ

                       ³ ³ ³

  (BOTTOM)             ³ ³ ÀÄ Remote LED (11-, 12+)

                       ³ ÀÄÄÄ Cable Select

                       ÀÄÄÄÄÄ Reserved

                             ST-51080A

                             Medalist 1080sl

       FORMATTED CAPACITY _______________________1083.8

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________4,834

       HEADS ______PHYSICAL______________________4

       DISCS (3.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (Mbits/sec) _______34.5 to 67.7

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 16.6

       PIO MODE _________________________________4

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________5,376

       AVERAGE LATENCY (mSEC) ___________________5.56

       BUFFER ___________________________________128 or 256 Kbyte

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________ATA

       SECTORS PER DRIVE (LBA mode) _____________2,116,800

       TPI (TRACKS PER INCH) ____________________4,800

       BPI (BITS PER INCH) ______________________76,200

       AVERAGE ACCESS (ms) ______________________10.5

       SINGLE TRACK SEEK (ms) ___________________2.0

       MAX FULL SEEK (ms) _______________________20

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating (Read/Write) __________2

                abnormal ________________________10

                nonoperating ____________________75

       ACOUSTICS (dBa) (typ/max) ________________30/38

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _1.0

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________6.5

                           IDLE _________________3.0

                           STANDBY ______________.5

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     0.748/19

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5/127

                        Weight    (lbs/kg):     .75/0.34

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       2100 cyl, 16 heads, 63 sectors = 1,083,801,600

                       DOS operating systems may require a system bios

                       that accepts larger values for the CMOS head

                       parameter which lowers cylinders below 1024:

        525 cyl, 64 heads, 63 sectors = 1,083,801,600

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software or bios driven host adapters. Otherwise,

                       capacity may be limited to:

       1024 cyl, 16 heads, 63 sectors = 528,482,304

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (09/09/96)


ST-51270A
ST-51270A (Medalist 1270sl)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

         40 pin I/O Cable Connection

         ³

    J1     ÕÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     ÍÍÍÍÍÍµ::::::::::ú::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

           ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                      ³

                      ÀÄÄÄ pin-20 removed

    ST-51270A

 ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

 º  Front View  º

 ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

                 ÚÄÄÄÄÄÄ Master OFF, Slave ON

                 ³Ú Ä Ä Ä (spare jumper stored on pins 2-4 default)

                 ³ ÚÄÄÄÄ Slave Present (used on Master)

                 ³³³ ÚÄÄ Master/Slave timing protocol causes Master

  (TOP)          ³ ³ ³    drive to wait up to 31 seconds for slave

                 ³³³ ³    to respond. (default ON, OFF=5 secs.)

                 ³ ³ ³

  J2             oÁo o o o o12

Option Block   Í1o o o o o o ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPWAÍÍÍÍÍÍÍÍÍÍ

                       ³ ³ ³

  (BOTTOM)             ³ ³ ÀÄ Remote LED (11-, 12+)

                       ³ ÀÄÄÄ Cable Select

                       ÀÄÄÄÄÄ Reserved

                             ST-51270A

                             Medalist 1270sl

       FORMATTED CAPACITY (xx SECTORS) __________1282.49

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________5,414

       HEADS ______PHYSICAL______________________4

       DISCS (3.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (Mbits/sec) _______36.1 to 71.4

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 16.6

       PIO MODE _________________________________4

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________5,376

       AVERAGE LATENCY (mSEC) ___________________5.56

       BUFFER ___________________________________128 Kbyte

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________ATA

       SECTORS PER DRIVE (LBA mode) _____________2,504,880

       TPI (TRACKS PER INCH) ____________________5,376

       BPI (KBITS PER INCH) _____________________79.2

       AVERAGE ACCESS (ms) ______________________10.5

       SINGLE TRACK SEEK (ms) ___________________2.0

       MAX FULL SEEK (ms) _______________________20

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating (Read/Write) __________2

                abnormal ________________________10

                nonoperating ____________________75

       ACOUSTICS (dBa) (typ/max) ________________30/38

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _1.1

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________6.4

                           IDLE _________________3.5

                           STANDBY ______________.5

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     0.748/19

                        Width  (inches/mm):     4.00/102.1

                        Depth  (inches/mm):     5/127.5

                        Weight    (lbs/kg):     .75/0.34

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       2485 cyl, 16 heads, 63 sectors = 1,282,498,560

                       DOS operating systems may require a system bios

                       that accepts larger values for the CMOS head

                       parameter which lowers cylinders below 1024:

        621 cyl, 64 heads, 63 sectors = 1,281,982,464

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software or bios driven host adapters. Otherwise,

                       capacity may be limited to:

       1024 cyl, 16 heads, 63 sectors = 528,482,304

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (09/09/96)


ST-52160A
ST-52160A (Medalist Pro 2160 AT)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                 J2  40 pin   I/O Cable Connection

                 ³

      ÕÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍ1Í/ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     Íµ::::::::::ú::::::::1³ : : : : ³ 0 0 0 0 ³ÍÍ

      ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍÏ8³Í³Í³Í³ÍÀÄ5ÄGÄGÄ12Ù    BOTTOM

                 ³           ³ ³ ³ ³

 pin-20 removed ÄÙ           ³ ³ ³ ÀÄÄ Remote LED (1-, 2+)

                             ³ ³ ÀÄÄÄÄ Alternate Capacity (see below)

                             ³ ÃÄÄÄÄÄÄ Slave Present (used on Master)

                             ³ ÀÄÄÄÄÄÄ Cable Select (when Slave ON)

                             ÀÄÄÄÄÄÄÄÄ Master OFF, Slave ON

                                        (spare jumper stored on

                                         pins 6-8)

   Alternate Capacity jumper sets the default cylinder translation

to 1024 to solve issues with certain BIOS that only auto-detect.

Total available sectors are still at full capacity as reported via

Identify Drive data words 52 - 61.  Third party partitioning software

may be needed to achieve full capacity if this option jumper is used.

                             ST-52160A

                        Medalist Pro 2160

       FORMATTED CAPACITY (MB) __________________2113

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________6536

       HEADS ______PHYSICAL______________________4

       DISCS (3.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________MR

       RECORDING METHOD _________________________ZBR PRML (0,4,4)

       INTERNAL TRANSFER RATE (Mbits/sec) _______55 to 97

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 16.6

       PIO MODE _________________________________4

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________5,397

       AVERAGE LATENCY (mSEC) ___________________5.58

       BUFFER ___________________________________128 Kbyte SeaCache

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________ATA

       SECTORS PER DRIVE (LBA mode) _____________4,127,760

       TPI (TRACKS PER INCH) ____________________6,730

       BPI (KBITS PER INCH) _____________________119.6

       AVERAGE ACCESS (ms read/write) ___________12/13

       SINGLE TRACK SEEK (ms) ___________________3.5

       MAX FULL SEEK (ms) _______________________25

       MTBF (power-on hours) Office _____________500,000

       SHOCK (G's):

                operating (Read/Write) __________2

                abnormal ________________________10

                nonoperating ____________________75

       ACOUSTICS (dBA) (typ/max) ________________27

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _1.9

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________5.7

                           IDLE _________________3.2

                           STANDBY ______________1.0

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):   0.748/19

                        Width  (inches/mm):   4.00/102.1

                        Depth  (inches/mm):   5.38/127.5

                        Weight    (lbs/kg):   1.0/0.45

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS AN "AUTO", "CUSTOM" OR "USER DEFINABLE" DRIVE

TYPE AVAILABLE. (see below)

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       4095 cyl, 16 heads, 63 sectors = 2,113,413,120

                       DOS operating systems may require a translation

                       that uses larger values for the CMOS head

                       parameter which lowers cylinders below 1024:

       1023 cyl,  64 heads, 63 sectors = 2,111,864,832

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software, system BIOS which supports LBA mode

                       or bios driven host adapters. Otherwise,

                       capacity may be limited to:

       1024 cyl, 16 heads, 63 sectors = 528,482,304

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (09/09/96)


ST-52520A
ST-52520A (Medalist Pro 2520 AT)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                 J2  40 pin   I/O Cable Connection

                 ³

      ÕÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍ1Í/ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     Íµ::::::::::ú::::::::1³ : : : : ³ 0 0 0 0 ³ÍÍ

      ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍÏ8³Í³Í³Í³ÍÀÄ5ÄGÄGÄ12Ù    BOTTOM

                 ³           ³ ³ ³ ³

 pin-20 removed ÄÙ           ³ ³ ³ ÀÄÄ Remote LED (1-, 2+)

                             ³ ³ ÀÄÄÄÄ Alternate Capacity (see below)

                             ³ ÃÄÄÄÄÄÄ Slave Present (used on Master)

                             ³ ÀÄÄÄÄÄÄ Cable Select (when Slave ON)

                             ÀÄÄÄÄÄÄÄÄ Master OFF, Slave ON

                                        (spare jumper stored on

                                         pins 6-8)

   Alternate Capacity jumper sets the default cylinder translation

to 1024 to solve issues with certain BIOS that only auto-detect.

Total available sectors are still at full capacity as reported via

Identify Drive data words 52 - 61.  Third party partitioning software

may be needed to achieve full capacity if this option jumper is used.

                             ST-52520A

                        Medalist Pro 2520

       FORMATTED CAPACITY (MB) __________________2564

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________6536

       HEADS ______PHYSICAL______________________4

       DISCS (3.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________MR

       RECORDING METHOD _________________________ZBR PRML (0,4,4)

       INTERNAL TRANSFER RATE (Mbits/sec) _______63 to 116

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 16.6

       PIO MODE _________________________________4

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________5,397

       AVERAGE LATENCY (mSEC) ___________________5.58

       BUFFER ___________________________________128 Kbyte SeaCache

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________ATA

       SECTORS PER DRIVE (LBA mode) _____________5,009,760

       TPI (TRACKS PER INCH) ____________________6,730

       BPI (KBITS PER INCH) _____________________138.0

       AVERAGE ACCESS (ms read/write) ___________12/13

       SINGLE TRACK SEEK (ms) ___________________3.5

       MAX FULL SEEK (ms) _______________________25

       MTBF (power-on hours) Office _____________500,000

       SHOCK (G's):

                operating (Read/Write) __________2

                abnormal ________________________10

                nonoperating ____________________75

       ACOUSTICS (dBA) (typ/max) ________________27

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _1.9

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________5.7

                           IDLE _________________3.2

                           STANDBY ______________1.0

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):   0.748/19

                        Width  (inches/mm):   4.00/102.1

                        Depth  (inches/mm):   5.38/127.5

                        Weight    (lbs/kg):   1.0/0.45

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS AN "AUTO", "CUSTOM" OR "USER DEFINABLE" DRIVE

TYPE AVAILABLE. (see below)

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       4970 cyl, 16 heads, 63 sectors = 2,564,997,120

                       DOS operating systems may require a translation

                       that uses larger values for the CMOS head

                       parameter which lowers cylinders below 1024:

       621 cyl, 128 heads, 63 sectors = 2,563,964,928

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software, system BIOS which supports LBA mode

                       or bios driven host adapters. Otherwise,

                       capacity may be limited to:

       1024 cyl, 16 heads, 63 sectors = 528,482,304

Some systems BIOS have capacity limitations.

Types that have been identified are:

a 2.113GB or 4095 cylinder limitation

and, if exceeded, may cause the system to fail or lock up during POST

with auto-detect options set in the CMOS.

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (09/09/96)


ST-5540A
ST-5540A (Medalist 540sl AT, formerly Decathlon 540 AT)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

         40 pin I/O Cable Connection

         ³

    J1     ÕÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     ÍÍÍÍÍÍµ::::::::::ú::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

           ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                      ³

                      ÀÄÄÄ pin-20 removed

    ST-5540A

 ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

 º  Front View  º

 ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

                 ÚÄÄÄÄÄÄ Master OFF, Slave ON

                 ³Ú Ä Ä Ä (spare jumper stored on pins 2-4 default)

                 ³ ÚÄÄÄÄ Slave Present (used on Master)

                 ³³³ ÚÄÄ Master/Slave timing protocol causes Master

  (TOP)          ³ ³ ³    drive to wait up to 31 seconds for slave

                 ³³³ ³    to respond. (default ON, OFF=5 secs.)

                 ³ ³ ³

  J2             oÁo o o o o12

Option Block   Í1o o o o o o ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPWAÍÍÍÍÍÍÍÍÍÍ

                       ³ ³ ³

  (BOTTOM)             ³ ³ ÀÄ Remote LED (11-, 12+)

                       ³ ÀÄÄÄ Cable Select

                       ÀÄÄÄÄÄ Reserved

                             ST-5540A

                             Medalist 540sl

       FORMATTED CAPACITY (xx SECTORS) __________541.9

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________4,834

       HEADS ______PHYSICAL______________________2

       DISCS (3.5 in) ___________________________1

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (Mbits/sec) _______34.5 to 67.7

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 16.6

       PIO MODE _________________________________4

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________5,376

       AVERAGE LATENCY (mSEC) ___________________5.56

       BUFFER ___________________________________128 or 256 Kbyte

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________ATA

       SECTORS PER DRIVE (LBA mode) _____________1,058,400

       TPI (TRACKS PER INCH) ____________________4,800

       BPI (BITS PER INCH) ______________________76,200

       AVERAGE ACCESS (ms) ______________________10.5

       SINGLE TRACK SEEK (ms) ___________________2.0

       MAX FULL SEEK (ms) _______________________20

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating (Read/Write) __________2

                abnormal ________________________10

                nonoperating ____________________75

       ACOUSTICS (dBa) (typ/max) ________________30/38

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _1.0

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________6.5

                           IDLE _________________3.0

                           STANDBY ______________.5

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     0.748/19

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5/127

                        Weight    (lbs/kg):     .75/0.34

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       1050 cyl, 16 heads, 63 sectors = 541,900,800

                       DOS operating systems may require a system bios

                       that accepts larger values for the CMOS head

                       parameter which lowers cylinders below 1024:

        525 cyl, 32 heads, 63 sectors = 541,900,800

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software or bios driven host adapters. Otherwise,

                       capacity may be limited to:

       1024 cyl, 16 heads, 63 sectors = 528,482,304

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (09/09/96)


ST-5660A
ST-5660A (Decathlon 545 AT)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

         40 pin I/O Cable Connection

         ³

    J1     ÕÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     ÍÍÍÍÍÍµ::::::::::ú::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

           ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                      ³

ST-5660A              ÀÄÄÄ pin-20 removed

 ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

 º  Front View  º

 ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

                 ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Slave drive ON (OFF for Master)

                 ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Slave Present (used on Master)

                 ³ ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Cable Select

                 ³ ³ ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Ext. Spindle Clock Synch

  (TOP)          ³ ³ ³ ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄ Remote LED (9-, 10+)

                 ³ ³ ³ ³ ³ ÚÄÄÄÄÄÄÄÄÄÄ Reserved

                 ³ ³ ³ ³ ³ ³   ÚÄpin-16          Ú34

  J8             o o o o o o   o o o o o o o o o o

Option Block   Í1o o o o o o o o o o o o o o o o oÍÍÍÍÍÍÍPWAÍÍÍÍÍÍÍÍÍÍ

                             ³ ÀÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÙ ³

  (BOTTOM)                   ³    ³              ³

            pin-14 removed ÄÄÙ    ³              ³

                  Reserved ÄÄÄÄÄÄÄÙ              ³

      Force 1024 cylinders ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

          Jumpers on 15-16, 21-22, 23-24 are spares.

          Cable Select also requires Slave and Slave Present jumpers ON.

                             ST-5660A

                             Decathlon 545 ATA

       UNFORMATTED CAPACITY _____________________

       FORMATTED CAPACITY (xx SECTORS) __________545.5

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________3420

       HEADS ______PHYSICAL______________________4

       DISCS (3.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (Mbits/sec) _______27 to 48

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 11.1

       PIO MODE _________________________________3

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________4,500

       AVERAGE LATENCY (mSEC) ___________________6.67

       BUFFER ___________________________________256 Kbyte SeaCache

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________AT

       SECTORS PER DRIVE (LBA mode) _____________1,066,184

       TPI (TRACKS PER INCH) ____________________3,309

       BPI (BITS PER INCH) ______________________68,000

       AVERAGE ACCESS (ms) ______________________12

       SINGLE TRACK SEEK (ms) ___________________3.5

       MAX FULL SEEK (ms) _______________________25

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating (Read/Write) __________2

                nonoperating ____________________75

       ACOUSTICS (dBa) (typ/max) ________________26/29

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _1.2

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________6.0

                           IDLE _________________<2.5

                           STANDBY ______________1.25

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     0.748/19

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5/127

                        Weight    (lbs/kg):     1.0/0.45

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       1057 cyl, 16 heads, 63 sectors = 545,513,472

                       DOS operating systems may require a system bios

                       that accepts larger values for the CMOS head

                       parameter which lowers cylinders below 1024:

        528 cyl, 32 heads, 63 sectors = 544,997,376

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software or bios driven host adapters. Otherwise,

                       capacity may be limited to:

       1024 cyl, 16 heads, 63 sectors = 528,482,304

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (08/09/94)


ST-5850A
ST-5850A (Decathlon 850 AT)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º Type A and Type B configurations

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

         40 pin I/O Cable Connection

         ³

    J1     ÕÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     ÍÍÍÍÍÍµ::::::::::ú::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

           ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                      ³

                      ÀÄÄÄ pin-20 removed

    ST-5850A

 ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

 º  Front View  º  Type A configuration has 2x6 jumper block

 ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

                 ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Slave drive ON (OFF for Master)

                 ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Slave Present (used on Master)

                 ÃÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Cable Select pins 1-2 AND 3-4

                 ³ ³ ÚÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄ Dual-drive emulation pins 5-6 AND

  (TOP)          ³ ³ ³   ³              pins 9-10

                 ³ ³ ³   ³ ÚÄÄÄÄÄÄÄÄÄÄ Spare jumper

                 ³ ³ ³   ³ ³

  J8             o o o o o o12

Option Block   Í1o o o o o o ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPWAÍÍÍÍÍÍÍÍÍÍ

                 ³   ³ ³

  (BOTTOM)       ³   ³ ÀÄÄÄ Remote LED (7-, 8+)

                 ÀÄÄÄÁÄÄÄÄÄ Master/Slave timing protocol changes to

                             PDIAG.  Makes the drive compatible with

                             some drives as the slave. Must be used

                             with pins 1-2 (Slave)

          Jumpers on 2-4 and 11-12 are spares, as shipped.

    ST-5850A

 ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

 º  Front View  º  Type B configuration has 2x17 jumper block

 ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

                 ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Slave drive ON (OFF for Master)

                 ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Slave Present (used on Master)

                 ³ ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Cable Select

                 ³ ³ ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Ext. Spindle Clock Synch

  (TOP)          ³ ³ ³ ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄ Remote LED (9-, 10+)

                 ³ ³ ³ ³ ³ ÚÄÄÄÄÄÄÄÄÄÄ Reserved

                 ³ ³ ³ ³ ³ ³   ÚÄpin-16          Ú34

  J8             o o o o o o   o o o o o o o o o o

Option Block   Í1o o o o o o o o o o o o o o o o oÍÍÍÍÍÍÍPWAÍÍÍÍÍÍÍÍÍÍ

                             ³ ³ ÀÂÙ ÀÂÙ ÀÄÄÂÄÄÄÄÙ

  (BOTTOM)                   ³ ³  ³   ³     ³

            pin-14 removed ÄÄÙ ³  ³   ³     ÀÄÄÄÄ Reserved

              Spare Jumper ÄÄÄÄÙ  ³   ÀÄÄÄÄÄÄÄÄÄÄ Spare Jumpers

      Dual-Drive Emulation ÄÄÄÄÄÄÄÙ

      (requires two jumpers)

          Jumpers on 15-16, 21-22, 23-24 are spares.

          Dual-Drive Emulation requires jumpers on both 17-18 and 19-20.

          Cable Select also requires Slave and Slave Present jumpers ON.

                             ST-5850A

                             Decathlon 850

       UNFORMATTED CAPACITY _____________________

       FORMATTED CAPACITY (xx SECTORS) __________854.7

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________4,085

       HEADS ______PHYSICAL______________________4

       DISCS (3.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (Mbits/sec) _______32.45 to 61.65

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 16.6

       PIO MODE _________________________________4

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________5,376

       AVERAGE LATENCY (mSEC) ___________________5.56

       BUFFER ___________________________________256 Kbyte SeaCache

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________AT

       SECTORS PER DRIVE (LBA mode) _____________1,669,260

       TPI (TRACKS PER INCH) ____________________4,250

       BPI (BITS PER INCH) ______________________69,355

       AVERAGE ACCESS (ms) ______________________12

       SINGLE TRACK SEEK (ms) ___________________3.5

       MAX FULL SEEK (ms) _______________________25

       MTBF (power-on hours) Office _____________500,000

       SHOCK (G's):

                operating (Read/Write) __________2

                nonoperating ____________________75

       ACOUSTICS (dBa) (typ/max) ________________30/38

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _1.9

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________7.0

                           IDLE _________________3.10

                           STANDBY ______________1.00

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     0.748/19

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5/127

                        Weight    (lbs/kg):     1.0/0.45

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       1656 cyl, 16 heads, 63 sectors = 854,654,976

                       DOS operating systems may require a system bios

                       that accepts larger values for the CMOS head

                       parameter which lowers cylinders below 1024:

        828 cyl, 32 heads, 63 sectors = 854,654,976

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software or bios driven host adapters. Otherwise,

                       capacity may be limited to:

        827 cyl, 16 heads, 63 sectors = 426,811,392 (Master)

        827 cyl, 16 heads, 63 sectors = 426,811,392 (Slave see Dual

                       Drive emulation jumper)

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (5/14/95)


ST-5851A
ST-5851A (Medalist 850sl AT)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

         40 pin I/O Cable Connection

         ³

    J1     ÕÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     ÍÍÍÍÍÍµ::::::::::ú::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

           ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                      ³

                      ÀÄÄÄ pin-20 removed

    ST-5851A

 ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

 º  Front View  º

 ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

                 ÚÄÄÄÄÄÄ Master OFF, Slave ON

                 ³Ú Ä Ä Ä (spare jumper stored on pins 2-4 default)

                 ³ ÚÄÄÄÄ Slave Present (used on Master)

                 ³³³ ÚÄÄ Master/Slave timing protocol causes Master

  (TOP)          ³ ³ ³    drive to wait up to 31 seconds for slave

                 ³³³ ³    to respond. (default ON, OFF=5 secs.)

                 ³ ³ ³

  J2             oÁo o o o o12

Option Block   Í1o o o o o o ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPWAÍÍÍÍÍÍÍÍÍÍ

                       ³ ³ ³

  (BOTTOM)             ³ ³ ÀÄ Remote LED (11-, 12+)

                       ³ ÀÄÄÄ Cable Select

                       ÀÄÄÄÄÄ Reserved

                             ST-5851A

                             Medalist 850sl

       FORMATTED CAPACITY (xx SECTORS) __________854.7

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________4,834

       HEADS ______PHYSICAL______________________4

       DISCS (3.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (Mbits/sec) _______34.5 to 67.7

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 16.6

       PIO MODE _________________________________4

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________5,376

       AVERAGE LATENCY (mSEC) ___________________5.56

       BUFFER ___________________________________128 or 256 Kbyte

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________ATA

       SECTORS PER DRIVE (LBA mode) _____________1,669,248

       TPI (TRACKS PER INCH) ____________________4,800

       BPI (BITS PER INCH) ______________________76,200

       AVERAGE ACCESS (ms) ______________________10.5

       SINGLE TRACK SEEK (ms) ___________________2.0

       MAX FULL SEEK (ms) _______________________20

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating (Read/Write) __________2

                abnormal ________________________10

                nonoperating ____________________75

       ACOUSTICS (dBa) (typ/max) ________________30/38

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _1.0

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________6.5

                           IDLE _________________3.0

                           STANDBY ______________.5

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     0.748/19

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5/127

                        Weight    (lbs/kg):     .75/0.34

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       1656 cyl, 16 heads, 63 sectors = 854,654,976

                       DOS operating systems may require a system bios

                       that accepts larger values for the CMOS head

                       parameter which lowers cylinders below 1024:

        828 cyl, 32 heads, 63 sectors = 854,654,976

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software or bios driven host adapters. Otherwise,

                       capacity may be limited to:

       1024 cyl, 16 heads, 63 sectors = 528,482,304

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (09/09/96)


ST-72A

                             ST-72A

                      Solid State FlashDrive

       FORMATTED CAPACITY _______________________2.6

       TRANSFER RATE To/From Memory (Mbytes/sec) up to 2.5

       TRANSFER RATE To/From Interface __________up to 3.75

       CONTROLLER OVERHEAD (msec-Command to DRQ) <1.5

       STARTUP TIMES:

        Sleep to Write (msec) ___________________<20

        Sleep to Read  (msec) ___________________<3

       INTERFACE ________________________________AT

        Auto Sense of interface type

        PCMCIA Card Type II

       MTBF (power-on hours) Office _____________200,000

       SHOCK (G's):

                operating (Read/Write) __________500

                nonoperating ____________________500

       POWER REQUIREMENTS: Maximum Current (mA)

                Reading 5v_______________________100

                Writing 5v_______________________200

                Erasing 5v_______________________200

                Sleep ___________________________5

       IBM AT DRIVE TYPE ________________________

       Physical:

                        Height (inches/mm):     0.28/7.1

                        Width  (inches/mm):     2/50.8

                        Depth  (inches/mm):     3.026/76.85

                        Weight      (oz/g):     1.23/35

Seagate reserves the right to change, without notice, product

offerings or specifications. (11/08/93)


ST-75A

                             ST-75A

                      Solid State FlashDrive

       FORMATTED CAPACITY _______________________5.2

       TRANSFER RATE To/From Memory (Mbytes/sec) up to 2.5

       TRANSFER RATE To/From Interface __________up to 3.75

       CONTROLLER OVERHEAD (msec-Command to DRQ) <1.5

       STARTUP TIMES:

        Sleep to Write (msec) ___________________<20

        Sleep to Read  (msec) ___________________<3

       INTERFACE ________________________________AT

        Auto Sense of interface type

        PCMCIA Card Type II

       MTBF (power-on hours) Office _____________200,000

       SHOCK (G's):

                operating (Read/Write) __________500

                nonoperating ____________________500

       POWER REQUIREMENTS: Maximum Current (mA)

                Reading 5v_______________________100

                Writing 5v_______________________200

                Erasing 5v_______________________200

                Sleep ___________________________5

       IBM AT DRIVE TYPE ________________________

       Physical:

                        Height (inches/mm):     0.28/7.1

                        Width  (inches/mm):     2/50.8

                        Depth  (inches/mm):     3.026/76.85

                        Weight      (oz/g):     1.23/35

Seagate reserves the right to change, without notice, product

offerings or specifications. (11/08/93)


ST-710A

                             ST-710A

                      Solid State FlashDrive

       FORMATTED CAPACITY _______________________10.4

       TRANSFER RATE To/From Memory (Mbytes/sec) up to 2.5

       TRANSFER RATE To/From Interface __________up to 3.75

       CONTROLLER OVERHEAD (msec-Command to DRQ) <1.5

       STARTUP TIMES:

        Sleep to Write (msec) ___________________<20

        Sleep to Read  (msec) ___________________<3

       INTERFACE ________________________________AT

        Auto Sense of interface type

        PCMCIA Card Type II

       MTBF (power-on hours) Office _____________200,000

       SHOCK (G's):

                operating (Read/Write) __________500

                nonoperating ____________________500

       POWER REQUIREMENTS: Maximum Current (mA)

                Reading 5v_______________________100

                Writing 5v_______________________200

                Erasing 5v_______________________200

                Sleep ___________________________5

       IBM AT DRIVE TYPE ________________________

       Physical:

                        Height (inches/mm):     0.28/7.1

                        Width  (inches/mm):     2/50.8

                        Depth  (inches/mm):     3.026/76.85

                        Weight      (oz/g):     1.23/35

Seagate reserves the right to change, without notice, product

offerings or specifications. (11/08/93)


ST-720A

                             ST-720A

                      Solid State FlashDrive

       FORMATTED CAPACITY _______________________20.9

       TRANSFER RATE To/From Memory (Mbytes/sec) up to 2.5

       TRANSFER RATE To/From Interface __________up to 3.75

       CONTROLLER OVERHEAD (msec-Command to DRQ) <1.5

       STARTUP TIMES:

        Sleep to Write (msec) ___________________<20

        Sleep to Read  (msec) ___________________<3

       INTERFACE ________________________________AT

        Auto Sense of interface type

        PCMCIA Card Type II

       MTBF (power-on hours) Office _____________200,000

       SHOCK (G's):

                operating (Read/Write) __________500

                nonoperating ____________________500

       POWER REQUIREMENTS: Maximum Current (mA)

                Reading 5v_______________________100

                Writing 5v_______________________200

                Erasing 5v_______________________200

                Sleep ___________________________5

       IBM AT DRIVE TYPE ________________________

       Physical:

                        Height (inches/mm):     0.28/7.1

                        Width  (inches/mm):     2/50.8

                        Depth  (inches/mm):     3.026/76.85

                        Weight      (oz/g):     1.23/35

Seagate reserves the right to change, without notice, product

offerings or specifications. (11/08/93)


ST-740A

                             ST-740A

                      Solid State FlashDrive

       FORMATTED CAPACITY _______________________41.9

       TRANSFER RATE To/From Memory (Mbytes/sec) up to 2.5

       TRANSFER RATE To/From Interface __________up to 3.75

       CONTROLLER OVERHEAD (msec-Command to DRQ) <1.5

       STARTUP TIMES:

        Sleep to Write (msec) ___________________<20

        Sleep to Read  (msec) ___________________<3

       INTERFACE ________________________________AT

        Auto Sense of interface type

        PCMCIA Card Type II

       MTBF (power-on hours) Office _____________200,000

       SHOCK (G's):

                operating (Read/Write) __________500

                nonoperating ____________________500

       POWER REQUIREMENTS: Maximum Current (mA)

                Reading 5v_______________________100

                Writing 5v_______________________200

                Erasing 5v_______________________200

                Sleep ___________________________5

       IBM AT DRIVE TYPE ________________________

       Physical:

                        Height (inches/mm):     0.28/7.1

                        Width  (inches/mm):     2/50.8

                        Depth  (inches/mm):     3.026/76.85

                        Weight      (oz/g):     1.23/35

Seagate reserves the right to change, without notice, product

offerings or specifications. (11/08/93)


ST-92A
ST-92AC

                             ST-92AC

                      Solid State FlashDrive

       FORMATTED CAPACITY _______________________2.6

       TRANSFER RATE To/From Memory (Mbytes/sec) up to 2.5

       TRANSFER RATE To/From Interface __________up to 3.75

       CONTROLLER OVERHEAD (msec-Command to DRQ) <1.5

       STARTUP TIMES:

        Sleep to Write (msec) ___________________20

        Sleep to Read  (msec) ___________________3

       INTERFACE ________________________________AT

        Auto Sense of interface type

        PCMCIA Card Type II

       MTBF (power-on hours) Office _____________200,000

       SHOCK (G's):

                operating (Read/Write) __________500

                nonoperating ____________________1000

       POWER REQUIREMENTS: Maximum Current (mA)

                Reading 5v_______________________150

                Writing 5v_______________________200

                Erasing 5v_______________________200

                Sleep ___________________________3

       IBM AT DRIVE TYPE ________________________

       Physical:

                        Height (inches/mm):     0.13/3.3

                        Width  (inches/mm):     2.126/54

                        Depth  (inches/mm):     3.37/85.6

                        Weight      (oz/g):     1.2/34

Seagate reserves the right to change, without notice, product

offerings or specifications. (11/09/93)


ST-95A
ST-95AC

                             ST-95AC

                      Solid State FlashDrive

       FORMATTED CAPACITY _______________________5.2

       TRANSFER RATE To/From Memory (Mbytes/sec) up to 2.5

       TRANSFER RATE To/From Interface __________up to 3.75

       CONTROLLER OVERHEAD (msec-Command to DRQ) <1.5

       STARTUP TIMES:

        Sleep to Write (msec) ___________________20

        Sleep to Read  (msec) ___________________3

       INTERFACE ________________________________AT

        Auto Sense of interface type

        PCMCIA Card Type II

       MTBF (power-on hours) Office _____________200,000

       SHOCK (G's):

                operating (Read/Write) __________500

                nonoperating ____________________1000

       POWER REQUIREMENTS: Maximum Current (mA)

                Reading 5v_______________________150

                Writing 5v_______________________200

                Erasing 5v_______________________200

                Sleep ___________________________3

       IBM AT DRIVE TYPE ________________________

       Physical:

                        Height (inches/mm):     0.13/3.3

                        Width  (inches/mm):     2.126/54

                        Depth  (inches/mm):     3.37/85.6

                        Weight      (oz/g):     1.2/34

Seagate reserves the right to change, without notice, product

offerings or specifications. (11/09/93)


ST-910AC

                             ST-910AC

                      Solid State FlashDrive

       FORMATTED CAPACITY _______________________10.4

       TRANSFER RATE To/From Memory (Mbytes/sec) up to 2.5

       TRANSFER RATE To/From Interface __________up to 3.75

       CONTROLLER OVERHEAD (msec-Command to DRQ) <1.5

       STARTUP TIMES:

        Sleep to Write (msec) ___________________20

        Sleep to Read  (msec) ___________________3

       INTERFACE ________________________________AT

        Auto Sense of interface type

        PCMCIA Card Type II

       MTBF (power-on hours) Office _____________200,000

       SHOCK (G's):

                operating (Read/Write) __________500

                nonoperating ____________________1000

       POWER REQUIREMENTS: Maximum Current (mA)

                Reading 5v_______________________150

                Writing 5v_______________________200

                Erasing 5v_______________________200

                Sleep ___________________________3

       IBM AT DRIVE TYPE ________________________

       Physical:

                        Height (inches/mm):     0.13/3.3

                        Width  (inches/mm):     2.126/54

                        Depth  (inches/mm):     3.37/85.6

                        Weight      (oz/g):     1.2/34

Seagate reserves the right to change, without notice, product

offerings or specifications. (11/09/93)


ST-920A
ST-920AC

                             ST-920AC

                      Solid State FlashDrive

       FORMATTED CAPACITY _______________________20.9

       TRANSFER RATE To/From Memory (Mbytes/sec) up to 2.5

       TRANSFER RATE To/From Interface __________up to 3.75

       CONTROLLER OVERHEAD (msec-Command to DRQ) <1.5

       STARTUP TIMES:

        Sleep to Write (msec) ___________________20

        Sleep to Read  (msec) ___________________3

       INTERFACE ________________________________AT

        Auto Sense of interface type

        PCMCIA Card Type II

       MTBF (power-on hours) Office _____________200,000

       SHOCK (G's):

                operating (Read/Write) __________500

                nonoperating ____________________1000

       POWER REQUIREMENTS: Maximum Current (mA)

                Reading 5v_______________________150

                Writing 5v_______________________200

                Erasing 5v_______________________200

                Sleep ___________________________3

       IBM AT DRIVE TYPE ________________________

       Physical:

                        Height (inches/mm):     0.13/3.3

                        Width  (inches/mm):     2.126/54

                        Depth  (inches/mm):     3.37/85.6

                        Weight      (oz/g):     1.2/34

Seagate reserves the right to change, without notice, product

offerings or specifications. (11/09/93)


ST-9051A

                                      ÚÄ 44-pin I/O Connector (* see below)

                                      ³                     o o

                                    ::::::::::::ù::::::::1  o o

                               ÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                                ³           ³ ³

       pin-20 removed for keying ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ           ³ ³

                                                            ³ ³

                                                            ³ ³

 Drive is Master, no Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 0 0

 Drive is Master, Seagate Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 0

 Drive is Slave to another ST9051A/ST9077A Master ÄÄÄÄÄÄÄÄÄ 0 1

 Reserved Position (Do Not Use) ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 1

 * Drive uses +5vdc power supplied to the drive

   via the interface connector. The drive does

   NOT make use of a +12vdc power line.

   pin-41  +5vdc (Logic)

   pin-42  +5vdc (Motor)

   pin-43  Ground

   pin-44  Reserved

                            ST-9051A

       UNFORMATTED CAPACITY (MB) ________________N/A

       FORMATTED CAPACITY (32 SECTORS) (MB) _____42.8

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________2,616

       CYLINDERS __PHYSICAL______________________654

       HEADS ______PHYSICAL______________________4

       DISCS (2.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       TRANSFER RATE INTERNAL (mbytes/sec)_______1.25

       SPINDLE SPEED (RPM) ______________________3,631

       AVERAGE LATENCY (mSEC) ___________________8.26

       BUFFER ___________________________________32 KByte SeaCache

       INTERFACE ________________________________AT BUS

       SECTORS PER DRIVE ________________________83,712

       TPI (TRACKS PER INCH) ____________________1,750

       BPI (BITS PER INCH) ______________________34,007

       AVERAGE ACCESS (ms) ______________________<19

       SINGLE TRACK SEEK (ms) ___________________6

       MAX FULL SEEK (ms) _______________________36

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +5V START-UP (amps) __1.0

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________1.7

                           IDLE _________________0.8

                           STANDBY ______________0.3

                           SLEEP ________________0.3

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     0.75/19.05

                        Width  (inches/mm):     2.76/70.10

                        Depth  (inches/mm):     4.01/101.85

                        Weight   (oz/kg):       6.5/0.18

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:   820 cyl, 6 heads, 17 sectors = 42,823,680

Possible translation:   654 cyl, 4 heads, 32 sectors = 42,860,544

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (9/25/91)


ST-9052A

                                      ÚÄ 44-pin I/O Connector (* see below)

                                      ³                     o o

                                    ::::::::::::ù::::::::1  o o

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                                                ³           ³ ³

       pin-20 removed for keying ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ           ³ ³

                                                            ³ ³

                                                            ³ ³

 Drive is Master, no Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 0 0

 Drive is Master, Seagate Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 0

 Drive is Slave to another ST9051A/ST9077A Master ÄÄÄÄÄÄÄÄÄ 0 1

 Reserved Position (Do Not Use) ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 1

 * Drive uses +5vdc power supplied to the drive

   via the interface connector. The drive does

   NOT make use of a +12vdc power line.

   pin-41  +5vdc (Logic)

   pin-42  +5vdc (Motor)

   pin-43  Ground

   pin-44  Reserved

                            ST-9052A

       UNFORMATTED CAPACITY (MB) ________________N/A

       FORMATTED CAPACITY (xx SECTORS) (MB) _____42.6

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________

       CYLINDERS __PHYSICAL/LOGICAL______________NA/980

       HEADS ______PHYSICAL/LOGICAL______________ /5

       DISCS (2.5 in)____________________________1

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (2,7)

       TRANSFER RATE INTERNAL (mbits/sec)________up to 14.5

       SPINDLE SPEED (RPM) ______________________3,450

       AVERAGE LATENCY (mSEC) ___________________8.70

       BUFFER ___________________________________32/64 KByte SeaCache

        Multisegmented cache

       INTERFACE ________________________________AT BUS

       SECTORS PER DRIVE ________________________83,300

       TPI (TRACKS PER INCH) ____________________

       BPI (BITS PER INCH) ______________________

       AVERAGE ACCESS (ms) ______________________16

       SINGLE TRACK SEEK (ms) ___________________5

       MAX FULL SEEK (ms) _______________________27

       MTBF (power-on hours) ____________________150,000

       SHOCK (G's) operating/nonoperating _______10/150

       POWER REQUIREMENTS: +5V START-UP (amps) __0.9

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________1.9

                           IDLE _________________0.8

                           STANDBY ______________0.25

                           SLEEP ________________0.25

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     0.49/12.5

                        Width  (inches/mm):     2.76/70.10

                        Depth  (inches/mm):     4.01/101.9

                        Weight    (oz/kg):      6.0/0.17

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:   980 cyl, 5 heads, 17 sectors = 42,649,600

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/21/91)


ST-9077A

                                      ÚÄ 44-pin I/O Connector (* see below)

                                      ³                     o o

                                    ::::::::::::ù::::::::1  o o

                               ÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                                ³           ³ ³

       pin-20 removed for keying ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ           ³ ³

                                                            ³ ³

                                                            ³ ³

 Drive is Master, no Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 0 0

 Drive is Master, Seagate Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 0

 Drive is Slave to another ST9051A/ST9077A Master ÄÄÄÄÄÄÄÄÄ 0 1

 Reserved Position (Do Not Use) ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 1

 * Drive uses +5vdc power supplied to the drive

   via the interface connector. The drive does

   NOT make use of a +12vdc power line.

   pin-41  +5vdc (Logic)

   pin-42  +5vdc (Motor)

   pin-43  Ground

   pin-44  Reserved

                            ST-9077A

       UNFORMATTED CAPACITY (MB) ________________N/A

       FORMATTED CAPACITY (39 SECTORS) (MB) _____64.0

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________3,208

       CYLINDERS __PHYSICAL______________________802

       HEADS ______PHYSICAL______________________4

       DISCS (2.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       TRANSFER RATE INTERNAL (mbits/sec)________12

       SPINDLE SPEED (RPM) ______________________3,546

       BUFFER ___________________________________32 KByte SeaCache

       INTERFACE ________________________________AT BUS

       SECTORS PER DRIVE ________________________125,112

       TPI (TRACKS PER INCH) ____________________1,750

       BPI (BITS PER INCH) ______________________45,007

       AVERAGE ACCESS (ms) ______________________<19

       SINGLE TRACK SEEK (ms) ___________________6

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +5V START-UP (amps) __1.0

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________3.0

                           IDLE _________________1.6

                           STANDBY ______________0.5

                           SLEEP ________________0.2

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     0.75/19.05

                        Width  (inches/mm):     2.76/70.10

                        Depth  (inches/mm):     4.01/101.85

                        Weight    (oz/kg):      6.5/0.18

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:   669 cyl, 11 heads, 17 sectors = 64,052,736

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (9/25/91)


ST-9080A

                            TOP       ÚÄ 44-pin I/O Connector (* see below)

                                      ³                     o o

                                    ::::::::::::ù::::::::1  o o

                               ÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                                ³           ³ ³

       pin-20 removed for keying ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ           ³ ³

                                                            ³ ³

                                                            ³ ³

 Drive is Master, no Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 0 0

 Drive is Master, Seagate Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 0

 Drive is Slave to another Seagate 2.5" Master ÄÄÄÄÄÄÄÄÄÄÄÄ 0 1

 Reserved Position (Do Not Use) ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 1

 * Drive uses +5vdc power supplied to the drive

   via the interface connector. The drive does

   NOT make use of a +12vdc power line.

   pin-41  +5vdc (Logic)

   pin-42  +5vdc (Motor)

   pin-43  Ground

   pin-44  Reserved

                            ST-9080A

       UNFORMATTED CAPACITY (MB) ________________N/A

       FORMATTED CAPACITY (xx SECTORS) (MB) _____64.0

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________

       CYLINDERS __PHYSICAL/LOGICAL______________NA/823

       HEADS ______PHYSICAL/LOGICAL______________2/4

       DISCS (2.5 in)____________________________1

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (2,7)

       TRANSFER RATE INTERNAL (mbits/sec)________up to 16

       SPINDLE SPEED (RPM) ______________________3,449

       AVERAGE LATENCY (mSEC) ___________________8.69

       BUFFER ___________________________________32/64 KByte SeaCache

        Multisegmented cache

       INTERFACE ________________________________AT BUS

       SECTORS PER DRIVE ________________________125,096

       TPI (TRACKS PER INCH) ____________________2,650

       BPI (BITS PER INCH) ______________________45,500

       FCI (FLUX DENSITY) _______________________30,300

       AVERAGE ACCESS (ms) ______________________16

       SINGLE TRACK SEEK (ms) ___________________5

       MAX FULL SEEK (ms) _______________________27

       MTBF (power-on hours) ____________________150,000

       SHOCK (G's) operating/nonoperating _______10/150

       ACOUSTICS (dBA) (typ/max) ________________30/33

       POWER REQUIREMENTS: +5V START-UP (amps) __1.0

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________1.7

                           IDLE _________________0.7

                           STANDBY ______________0.16

                           SLEEP ________________0.16

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     0.49/12.5

                        Width  (inches/mm):     2.76/70.10

                        Depth  (inches/mm):     4.01/101.9

                        Weight    (oz/kg):      4.8/0.136

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:   823 cyl, 4 heads, 38 sectors = 64,049,152

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (03/14/96)


ST-9096A

                                      ÚÄ 44-pin I/O Connector (* see below)

                                      ³                     o o

                                    ::::::::::::ù::::::::1  o o

                               ÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                                ³           ³ ³

       pin-20 removed for keying ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ           ³ ³

                                                            ³ ³

                                                            ³ ³

 Drive is Master, no Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 0 0

 Drive is Master, Seagate Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 0

 Drive is Slave to another ST9xxxA/ST9xxxA Master ÄÄÄÄÄÄÄÄÄ 0 1

 Reserved Position (Do Not Use) ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 1

 * Drive uses +5vdc power supplied to the drive

   via the interface connector. The drive does

   NOT make use of a +12vdc power line.

   pin-41  +5vdc (Logic)

   pin-42  +5vdc (Motor)

   pin-43  Ground

   pin-44  Reserved

                            ST-9096A

       UNFORMATTED CAPACITY (MB) ________________N/A

       FORMATTED CAPACITY (xx SECTORS) (MB) _____85.3

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL/LOGICAL______________NA/980

       HEADS ______PHYSICAL/LOGICAL______________4/10

       DISCS (2.5 in)____________________________2

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (2,7)

       TRANSFER RATE INTERNAL (mbits/sec)________to 14.5

       SPINDLE SPEED (RPM) ______________________3,450

       AVERAGE LATENCY (mSEC) ___________________8.70

       BUFFER ___________________________________64 KByte SeaCache

        Multisegmented cache

       INTERFACE ________________________________AT BUS

       SECTORS PER DRIVE ________________________166,664

       TPI (TRACKS PER INCH) ____________________2,165

       BPI (BITS PER INCH) ______________________

       AVERAGE ACCESS (ms) ______________________16

       SINGLE TRACK SEEK (ms) ___________________5

       MAX FULL SEEK (ms) _______________________27

       MTBF (power-on hours) ____________________150,000

       SHOCK (G's) operating/nonoperating _______10/150

       POWER REQUIREMENTS: +5V START-UP (amps) __1.0

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________2.0

                           IDLE _________________1.0

                           STANDBY ______________0.3

                           SLEEP ________________0.3

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     0.75/19.05

                        Width  (inches/mm):     2.76/70.10

                        Depth  (inches/mm):     4.01/101.85

                        Weight    (oz/kg):      6.5/0.18

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:   980 cyl, 10 heads, 17 sectors = 85,299,200

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/21/91)


ST-9100AG

                            TOP       ÚÄ 44-pin I/O Connector (* see below)

                                      ³                     o o

                                    ::::::::::::ù::::::::1  o o

                               ÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                                ³           ³ ³

       pin-20 removed for keying ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ           ³ ³

                                                            ³ ³

                                                            ³ ³

 Drive is Master, no Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 0 0

 Drive is Master, Seagate Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 0

 Drive is Slave to another Seagate 2.5" Master ÄÄÄÄÄÄÄÄÄÄÄÄ 0 1

 Reserved Position (Do Not Use) ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 1

 * Drive uses +5vdc power supplied to the drive

   via the interface connector. The drive does

   NOT make use of a +12vdc power line.

   pin-41  +5vdc (Logic)

   pin-42  +5vdc (Motor)

   pin-43  Ground

   pin-44  Reserved

                             ST-9100AG

       UNFORMATTED CAPACITY _____________________

       FORMATTED CAPACITY (xx SECTORS) __________85.7

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________

       CYLINDERS ________________________________

       HEADS ____________________________________2

       DISCS (2.5 in) ___________________________1

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______up to 22.4

       SPINDLE SPEED (RPM) ______________________3,545

       AVERAGE LATENCY (mSEC) ___________________8.46

       BUFFER ___________________________________120 Kbyte

        Adaptive cache, write cache optional

       INTERFACE ________________________________AT

       SECTORS PER DRIVE ________________________167,552

       TPI (TRACKS PER INCH) ____________________2,650

       BPI (BITS PER INCH) ______________________58,200

       AVERAGE ACCESS (ms) ______________________16

       SINGLE TRACK SEEK (ms) ___________________5

       MAX FULL SEEK (ms) _______________________27

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's) operating/nonoperating _______100/150

        SafeRite shock sensor

       POWER REQUIREMENTS: +5V START-UP (amps)___0.92

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________1.6

                           IDLE _________________0.6

                           STANDBY ______________0.12

                           SLEEP ________________0.09

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     .049/12.5

                        Width  (inches/mm):     2.76/70.10

                        Depth  (inches/mm):     4.01/101.85

                        Weight    (oz/kg):      4.8/0.136

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:   748 cyl, 14 heads, 16 sectors = 85,786,624

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (06/22/93)


ST-91080AG
ST-91080AG (Marathon 1080sl)

                            TOP       ÚÄ 44-pin I/O Connector (* see below)

                                      ³                     o o

                                    ::::::::::::ù::::::::1  o o

                               ÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                                ³           ³ ³

       pin-20 removed for keying ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ           ³ ³

                                                            ³ ³

                                                            ³ ³

 Drive is Master, no Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 0 0

 Drive is Master, Seagate Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 0

 Drive is Slave to another Seagate 2.5" Master ÄÄÄÄÄÄÄÄÄÄÄÄ 0 1

 Cable Select ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 1

 * Drive uses +5vdc power supplied to the drive

   via the interface connector. The drive does

   NOT make use of a +12vdc power line.

   pin-41  +5vdc (Logic)

   pin-42  +5vdc (Motor)

   pin-43  Ground

   pin-44  Reserved

                             ST-91080AG

                           Marathon 1080sl

       FORMATTED CAPACITY _______________________1083.8

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________

       HEADS ______PHYSICAL______________________6

       DISCS (3.5 in) ___________________________3

       MEDIA TYPE _______________________________THIN FILM on GLASS

       HEAD TYPE ________________________________MR

       RECORDING METHOD _________________________ZBR PRML (8/9)

       INTERNAL TRANSFER RATE (Mbits/sec) _______up to 60.8

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 16.6

       PIO MODE _________________________________4

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________4,508

       AVERAGE LATENCY (mSEC) ___________________6.65

       BUFFER ___________________________________103 Kbyte

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________ATA

       SECTORS PER DRIVE (LBA mode) _____________2,116,800

       TPI (TRACKS PER INCH) ____________________5,555

       BPI (KBITS PER INCH) _____________________120

       AVERAGE ACCESS (ms read/write) ___________12/14

       SINGLE TRACK SEEK (ms read/write) ________4/5

       MAX FULL SEEK (ms read/write) ____________24/30

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating (Read/Write) __________125

                abnormal ________________________

                nonoperating ____________________350

       ACOUSTICS (dBA) (typ/max) ________________35/41

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +5V START-UP (amps) __1.1

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________2.2

                           IDLE _________________0.9

                           STANDBY ______________0.3

                           SLEEP ________________0.1

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     .504/12.7

                        Width  (inches/mm):     2.76/70.10

                        Depth  (inches/mm):         /100.45

                        Weight      (oz/g):         /162

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       2100 cyl, 16 heads, 63 sectors = 1,083,801,600

                       DOS operating systems may require a translation

                       that uses larger values for the CMOS head

                       parameter which lowers cylinders below 1024:

        525 cyl, 64 heads, 63 sectors = 1,083,801,600

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software, system BIOS which supports LBA mode

                       or bios driven host adapters. Otherwise,

                       capacity may be limited to:

       1024 cyl, 16 heads, 63 sectors = 528,482,304

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (12/16/96)


ST-91350AG
ST-91350AG (Marathon 1350sl)

                            TOP       ÚÄ 44-pin I/O Connector (* see below)

                                      ³                     o o

                                    ::::::::::::ù::::::::1  o o

                               ÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                                ³           ³ ³

       pin-20 removed for keying ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ           ³ ³

                                                            ³ ³

                                                            ³ ³

 Drive is Master, no Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 0 0

 Drive is Master, Seagate Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 0

 Drive is Slave to another Seagate 2.5" Master ÄÄÄÄÄÄÄÄÄÄÄÄ 0 1

 Cable Select ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 1

 * Drive uses +5vdc power supplied to the drive

   via the interface connector. The drive does

   NOT make use of a +12vdc power line.

   pin-41  +5vdc (Logic)

   pin-42  +5vdc (Motor)

   pin-43  Ground

   pin-44  Reserved

                             ST-91350AG

                           Marathon 1350sl

       FORMATTED CAPACITY _______________________1350.10

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________

       HEADS ______PHYSICAL______________________6

       DISCS (3.5 in) ___________________________3

       MEDIA TYPE _______________________________THIN FILM on GLASS

       HEAD TYPE ________________________________MR

       RECORDING METHOD _________________________ZBR PRML (8/9)

       INTERNAL TRANSFER RATE (Mbits/sec) _______up to 60.8

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 16.6

       PIO MODE _________________________________4

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________4,508

       AVERAGE LATENCY (mSEC) ___________________6.65

       BUFFER ___________________________________103 Kbyte

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________ATA

       SECTORS PER DRIVE (LBA mode) _____________2,636,986

       TPI (TRACKS PER INCH) ____________________5,555

       BPI (KBITS PER INCH) _____________________120

       AVERAGE ACCESS (ms read/write) ___________12/14

       SINGLE TRACK SEEK (ms read/write) ________4/5

       MAX FULL SEEK (ms read/write) ____________24/30

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating (Read/Write) __________125

                abnormal ________________________

                nonoperating ____________________350

       ACOUSTICS (dBA) (typ/max) ________________35/41

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +5V START-UP (amps) __1.1

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________2.2

                           IDLE _________________0.9

                           STANDBY ______________0.3

                           SLEEP ________________0.1

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     .504/12.7

                        Width  (inches/mm):     2.76/70.10

                        Depth  (inches/mm):         /100.45

                        Weight      (oz/g):         /162

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       2616 cyl, 16 heads, 63 sectors = 1,350,107,136

                       DOS operating systems may require a translation

                       that uses larger values for the CMOS head

                       parameter which lowers cylinders below 1024:

        654 cyl, 64 heads, 63 sectors = 1,350,107,136

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software, system BIOS which supports LBA mode

                       or bios driven host adapters. Otherwise,

                       capacity may be limited to:

       1024 cyl, 16 heads, 63 sectors = 528,482,304

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (12/16/96)


ST-9140AG

                            TOP       ÚÄ 44-pin I/O Connector (* see below)

                                      ³                     o o

                                    ::::::::::::ù::::::::1  o o

                               ÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                                ³           ³ ³

       pin-20 removed for keying ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ           ³ ³

                                                            ³ ³

                                                            ³ ³

 Drive is Master, no Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 0 0

 Drive is Master, Seagate Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 0

 Drive is Slave to another Seagate 2.5" Master ÄÄÄÄÄÄÄÄÄÄÄÄ 0 1

 Cable Select ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 1

 * Drive uses +5vdc power supplied to the drive

   via the interface connector. The drive does

   NOT make use of a +12vdc power line.

   pin-41  +5vdc (Logic)

   pin-42  +5vdc (Motor)

   pin-43  Ground

   pin-44  Reserved

                             ST-9140AG

       UNFORMATTED CAPACITY _____________________

       FORMATTED CAPACITY (xx SECTORS) __________127.9

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________

       CYLINDERS ________________________________

       HEADS ____________________________________4

       DISCS (2.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______up to 22.4

       SPINDLE SPEED (RPM) ______________________3,545

       AVERAGE LATENCY (mSEC) ___________________8.46

       BUFFER ___________________________________120 Kbyte

        Adaptive cache, write cache optional

       INTERFACE ________________________________AT

       SECTORS PER DRIVE ________________________249,900

       TPI (TRACKS PER INCH) ____________________2,760

       BPI (BITS PER INCH) ______________________57,120

       AVERAGE ACCESS (ms) ______________________16

       SINGLE TRACK SEEK (ms) ___________________5

       MAX FULL SEEK (ms) _______________________27

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's) operating/nonoperating _______100/150

        SafeRite shock sensor

       POWER REQUIREMENTS: +5V START-UP (amps)___0.92

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________1.7

                           IDLE _________________0.6

                           STANDBY ______________0.12

                           SLEEP ________________0.09

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     .49/12.5

                        Width  (inches/mm):     2.76/70.10

                        Depth  (inches/mm):     4.01/101.85

                        Weight    (oz/kg):      5.7/0.162

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:   980 cyl, 15 heads, 17 sectors = 127,948,800

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (06/24/95)


ST-91430AG
ST-91430AG (Marathon 1430sl)

                            TOP       ÚÄ 44-pin I/O Connector (* see below)

                                      ³                     o o

                                    ::::::::::::ù::::::::1  o o

                               ÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                                ³           ³ ³

       pin-20 removed for keying ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ           ³ ³

                                                            ³ ³

                                                            ³ ³

 Drive is Master, no Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 0 0

 Drive is Master, Seagate Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 0

 Drive is Slave to another Seagate 2.5" Master ÄÄÄÄÄÄÄÄÄÄÄÄ 0 1

 Cable Select ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 1

 * Drive uses +5vdc power supplied to the drive

   via the interface connector. The drive does

   NOT make use of a +12vdc power line.

   pin-41  +5vdc (Logic)

   pin-42  +5vdc (Motor)

   pin-43  Ground

   pin-44  Reserved

                             ST-91430AG

                           Marathon 1430sl

       FORMATTED CAPACITY _______________________1449.1

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________

       HEADS ______PHYSICAL______________________6

       DISCS (3.5 in) ___________________________3

       MEDIA TYPE _______________________________THIN FILM on GLASS

       HEAD TYPE ________________________________MR

       RECORDING METHOD _________________________ZBR PRML (16/17)

       INTERNAL TRANSFER RATE (Mbits/sec) _______up to 60.8

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 16.6

       PIO MODE _________________________________4

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________4,508

       AVERAGE LATENCY (mSEC) ___________________6.65

       BUFFER ___________________________________103 Kbyte

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________ATA

       SECTORS PER DRIVE (LBA mode) _____________2,830,494

       TPI (TRACKS PER INCH) ____________________5,555

       BPI (KBITS PER INCH) _____________________120

       AVERAGE ACCESS (ms read/write) ___________12/14

       SINGLE TRACK SEEK (ms read/write) ________4/5

       MAX FULL SEEK (ms read/write) ____________24/30

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating (Read/Write) __________125

                abnormal ________________________

                nonoperating ____________________350

       ACOUSTICS (dBA) (typ/max) ________________35/41

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +5V START-UP (amps) __1.1

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________2.2

                           IDLE _________________0.9

                           STANDBY ______________0.3

                           SLEEP ________________0.1

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     .504/12.7

                        Width  (inches/mm):     2.76/70.10

                        Depth  (inches/mm):         /100.45

                        Weight      (oz/g):         /162

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       2808 cyl, 16 heads, 63 sectors = 1,449,197,568

                       DOS operating systems may require a translation

                       that uses larger values for the CMOS head

                       parameter which lowers cylinders below 1024:

        702 cyl, 64 heads, 63 sectors = 1,449,197,568

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software, system BIOS which supports LBA mode

                       or bios driven host adapters. Otherwise,

                       capacity may be limited to:

       1024 cyl, 16 heads, 63 sectors = 528,482,304

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (12/16/96)


ST-9144A

                                      ÚÄ 44-pin I/O Connector (* see below)

                                      ³                     o o

                                    ::::::::::::ù::::::::1  o o

                               ÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                                ³           ³ ³

       pin-20 removed for keying ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ           ³ ³

                                                            ³ ³

                                                            ³ ³

 Drive is Master, no Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 0 0

 Drive is Master, Seagate Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 0

 Drive is Slave to another ST9xxxA/ST9xxxA Master ÄÄÄÄÄÄÄÄÄ 0 1

 Reserved Position (Do Not Use) ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 1

 * Drive uses +5vdc power supplied to the drive

   via the interface connector. The drive does

   NOT make use of a +12vdc power line.

   pin-41  +5vdc (Logic)

   pin-42  +5vdc (Motor)

   pin-43  Ground

   pin-44  Reserved

                            ST-9144A

       UNFORMATTED CAPACITY (MB) ________________N/A

       FORMATTED CAPACITY (xx SECTORS) (MB) _____127.9

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL/LOGICAL______________NA/980

       HEADS ______PHYSICAL/LOGICAL______________6/15

       DISCS (2.5 in)____________________________3

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (2,7)

       TRANSFER RATE INTERNAL (mbits/sec)________to 14.5

       SPINDLE SPEED (RPM) ______________________3,450

       AVERAGE LATENCY (mSEC) ___________________8.70

       BUFFER ___________________________________64 KByte SeaCache

        Multisegmented cache

       INTERFACE ________________________________AT BUS

       SECTORS PER DRIVE ________________________249,900

       TPI (TRACKS PER INCH) ____________________2,165

       BPI (BITS PER INCH) ______________________

       AVERAGE ACCESS (ms) ______________________16

       SINGLE TRACK SEEK (ms) ___________________5

       MAX FULL SEEK (ms) _______________________27

       MTBF (power-on hours) ____________________150,000

       SHOCK (G's) operating/nonoperating _______10/150

       POWER REQUIREMENTS: +5V START-UP (amps) __1.0

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________2.0

                           IDLE _________________1.0

                           STANDBY ______________0.3

                           SLEEP ________________0.3

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     0.75/19.05

                        Width  (inches/mm):     2.76/70.10

                        Depth  (inches/mm):     4.01/101.85

                        Weight    (oz/kg):      7.0/0.20

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:   980 cyl, 15 heads, 17 sectors = 127,948,800

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/21/91)


ST-9145AG
ST-9145AG and ST-9145A

                            TOP       ÚÄ 44-pin I/O Connector (* see below)

                                      ³                     o o

                                    ::::::::::::ù::::::::1  o o

                               ÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                                ³           ³ ³

       pin-20 removed for keying ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ           ³ ³

                                                            ³ ³

                                                            ³ ³

 Drive is Master, no Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 0 0

 Drive is Master, Seagate Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 0

 Drive is Slave to another Seagate 2.5" Master ÄÄÄÄÄÄÄÄÄÄÄÄ 0 1

 Reserved Position (Do Not Use) ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 1

 * Drive uses +5vdc power supplied to the drive

   via the interface connector. The drive does

   NOT make use of a +12vdc power line.

   pin-41  +5vdc (Logic)

   pin-42  +5vdc (Motor)

   pin-43  Ground

   pin-44  Reserved

                            ST-9145AG

       UNFORMATTED CAPACITY (MB) ________________145

       FORMATTED CAPACITY (xx SECTORS) (MB) _____127.9

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS (USER) _PHYSICAL/LOGICAL___________5852/14700

       CYLINDERS __PHYSICAL/LOGICAL______________1463/980

       HEADS ______PHYSICAL/LOGICAL______________4/15

       DISCS (2.5 in)____________________________2

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (2,7)

       TRANSFER RATE INTERNAL (mbits/sec)________up to 16

       SPINDLE SPEED (RPM) ______________________3,449

       AVERAGE LATENCY (mSEC) ___________________8.69

       BUFFER ___________________________________32/64 KByte SeaCache

        Multisegmented cache

       INTERFACE ________________________________AT BUS

       SECTORS PER DRIVE ________________________249,900

       TPI (TRACKS PER INCH) ____________________2,650

       BPI (BITS PER INCH) ______________________45,500

       FCI (FLUX DENSITY) _______________________30,300

       AVERAGE ACCESS (ms) ______________________16

       SINGLE TRACK SEEK (ms) ___________________5

       MAX FULL SEEK (ms) _______________________27

       MTBF (power-on hours) ____________________150,000

       SHOCK (G's):

         ST9145A   operating/nonoperating _______10/150

         ST9145AG  operating/nonoperating _______100/150

          SafeRite shock sensor

       ACOUSTICS (dBA) (typ/max) ________________30/33

       POWER REQUIREMENTS: +5V START-UP (amps) __1.2

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________1.8

                           IDLE _________________0.7

                           STANDBY ______________0.17

                           SLEEP ________________0.17

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     0.75/19.0

                        Width  (inches/mm):     2.76/70.10

                        Depth  (inches/mm):     4.01/101.9

                        Weight    (oz/kg):      4.8/0.136

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:   980 cyl, 15 heads, 17 sectors = 127,948,800

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (01/04/96)


ST-9150AG
ST-9150AG (Marathon 130sl)

                            TOP       ÚÄ 44-pin I/O Connector (* see below)

                                      ³                     o o

                                    ::::::::::::ù::::::::1  o o

                               ÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                                ³           ³ ³

       pin-20 removed for keying ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ           ³ ³

                                                            ³ ³

                                                            ³ ³

 Drive is Master, no Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 0 0

 Drive is Master, Seagate Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 0

 Drive is Slave to another Seagate 2.5" Master ÄÄÄÄÄÄÄÄÄÄÄÄ 0 1

 Reserved Position (Do Not Use) ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 1

 * Drive uses +5vdc power supplied to the drive

   via the interface connector. The drive does

   NOT make use of a +12vdc power line.

   pin-41  +5vdc (Logic)

   pin-42  +5vdc (Motor)

   pin-43  Ground

   pin-44  Reserved

                             ST-9150AG

                             Marathon 130sl

       UNFORMATTED CAPACITY _____________________

       FORMATTED CAPACITY (xx SECTORS) __________131.0

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________

       CYLINDERS ________________________________

       HEADS ____________________________________2

       DISCS (2.5 in) ___________________________1

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______up to 29.5

       EXTERNAL TRANSFER RATE (Mbytes) __________up to 13.3

       SPINDLE SPEED (RPM) ______________________3,980

       AVERAGE LATENCY (mSEC) ___________________7.54

       BUFFER ___________________________________120 Kbyte

        Adaptive cache, write cache optional

       INTERFACE ________________________________AT

       SECTORS PER DRIVE ________________________256,009

       TPI (TRACKS PER INCH) ____________________3,282

       BPI (BITS PER INCH) ______________________59,124

       FCI (FLUX CHANGES PER INCH) ______________44,360

       AVERAGE ACCESS (ms) __(read/write)________16/20

       SINGLE TRACK SEEK (ms) __(read/write)_____6/7

       MAX FULL SEEK (ms) __(read/write)_________26/28

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's) operating/nonoperating _______100/150

        SafeRite shock sensor

       ACOUSTICS __(dBA Max)__(idle/seek)________28/30

       POWER REQUIREMENTS: +5V START-UP (amps)___0.60

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________1.7

                           IDLE _________________0.73

                           STANDBY ______________0.16

                           SLEEP ________________0.10

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     .504/12.80

                        Width  (inches/mm):     2.76/70.10

                        Depth  (inches/mm):     4.01/101.85

                        Weight    (oz/kg):      5.4/0.154

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:   419 cyl, 13 heads, 47 sectors = 131,076,608

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (08/09/94)


ST-91685AG
ST-91685AG (Marathon 1680)

                            TOP       ÚÄ 44-pin I/O Connector (* see below)

                                      ³                     o o

                                    ::::::::::::ù::::::::1  o o

                               ÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                                ³           ³ ³

       pin-20 removed for keying ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ           ³ ³

                                                            ³ ³

                                                            ³ ³

 Drive is Master, no Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 0 0

 Drive is Master, Seagate Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 0

 Drive is Slave to another Seagate 2.5" Master ÄÄÄÄÄÄÄÄÄÄÄÄ 0 1

 Cable Select ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 1

 * Drive uses +5vdc power supplied to the drive

   via the interface connector. The drive does

   NOT make use of a +12vdc power line.

   pin-41  +5vdc (Logic)

   pin-42  +5vdc (Motor)

   pin-43  Ground

   pin-44  Reserved

                             ST-91685AG

                           Marathon 1680

       FORMATTED CAPACITY _______________________1680.40

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________

       HEADS ______PHYSICAL______________________8

       DISCS (3.5 in) ___________________________4

       MEDIA TYPE _______________________________THIN FILM on GLASS

       HEAD TYPE ________________________________MR

       RECORDING METHOD _________________________ZBR PRML (8/9)

       INTERNAL TRANSFER RATE (Mbits/sec) _______up to 60.8

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 16.6

       PIO MODE _________________________________4

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________4,508

       AVERAGE LATENCY (mSEC) ___________________6.65

       BUFFER ___________________________________103 Kbyte

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________ATA

       SECTORS PER DRIVE (LBA mode) _____________3,282,490

       TPI (TRACKS PER INCH) ____________________5,555

       BPI (KBITS PER INCH) _____________________120

       AVERAGE ACCESS (ms read/write) ___________12/14

       SINGLE TRACK SEEK (ms read/write) ________4/5

       MAX FULL SEEK (ms read/write) ____________26/28

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating (Read/Write) __________125

                abnormal ________________________

                nonoperating ____________________350

       ACOUSTICS (dBA) (typ/max) ________________24/30

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +5V START-UP (amps) __1.3

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________2.5

                           IDLE _________________1.2

                           STANDBY ______________0.3

                           SLEEP ________________0.1

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):         /17.20

                        Width  (inches/mm):     2.76/70.10

                        Depth  (inches/mm):         /100.45

                        Weight      (oz/g):         /200

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       3256 cyl, 16 heads, 63 sectors = 1,680,408,576

                       DOS operating systems may require a translation

                       that uses larger values for the CMOS head

                       parameter which lowers cylinders below 1024:

        814 cyl, 64 heads, 63 sectors = 1,680,408,576

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software, system BIOS which supports LBA mode

                       or bios driven host adapters. Otherwise,

                       capacity may be limited to:

       1024 cyl, 16 heads, 63 sectors = 528,482,304

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (12/16/96)


ST-9190AG
ST-9190AG (Marathon 170sl)

                            TOP       ÚÄ 44-pin I/O Connector (* see below)

                                      ³                     o o

                                    ::::::::::::ù::::::::1  o o

                               ÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                                ³           ³ ³

       pin-20 removed for keying ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ           ³ ³

                                                            ³ ³

                                                            ³ ³

 Drive is Master, no Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 0 0

 Drive is Master, Seagate Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 0

 Drive is Slave to another Seagate 2.5" Master ÄÄÄÄÄÄÄÄÄÄÄÄ 0 1

 Cable Select ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 1

 * Drive uses +5vdc power supplied to the drive

   via the interface connector. The drive does

   NOT make use of a +12vdc power line.

   pin-41  +5vdc (Logic)

   pin-42  +5vdc (Motor)

   pin-43  Ground

   pin-44  Reserved

                             ST-9190AG

                             Marathon 170sl

       UNFORMATTED CAPACITY _____________________

       FORMATTED CAPACITY (xx SECTORS) __________171.6

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________

       CYLINDERS ________________________________

       HEADS ____________________________________4

       DISCS (2.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______up to 22.4

       SPINDLE SPEED (RPM) ______________________3,545

       AVERAGE LATENCY (mSEC) ___________________8.46

       BUFFER ___________________________________120 Kbyte

        Adaptive cache, write cache optional

       INTERFACE ________________________________AT

       SECTORS PER DRIVE ________________________335,232

       TPI (TRACKS PER INCH) ____________________2,760

       BPI (BITS PER INCH) ______________________57,120

       AVERAGE ACCESS (ms) ______________________16

       SINGLE TRACK SEEK (ms) ___________________5

       MAX FULL SEEK (ms) _______________________27

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's) operating/nonoperating _______100/150

        SafeRite shock sensor

       POWER REQUIREMENTS: +5V START-UP (amps)___0.92

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________1.7

                           IDLE _________________0.6

                           STANDBY ______________0.12

                           SLEEP ________________0.09

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     .49/12.5

                        Width  (inches/mm):     2.76/70.10

                        Depth  (inches/mm):     4.01/101.85

                        Weight    (oz/kg):      5.7/0.162

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:   873 cyl, 16 heads, 24 sectors = 171,638,784

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (06/24/95)


ST-92255AG
ST-92255AG (Marathon 2250)

                            TOP       ÚÄ 44-pin I/O Connector (* see below)

                                      ³                     o o

                                    ::::::::::::ù::::::::1  o o

                               ÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                                ³           ³ ³

       pin-20 removed for keying ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ           ³ ³

                                                            ³ ³

                                                            ³ ³

 Drive is Master, no Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 0 0

 Drive is Master, Seagate Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 0

 Drive is Slave to another Seagate 2.5" Master ÄÄÄÄÄÄÄÄÄÄÄÄ 0 1

 Cable Select ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 1

 * Drive uses +5vdc power supplied to the drive

   via the interface connector. The drive does

   NOT make use of a +12vdc power line.

   pin-41  +5vdc (Logic)

   pin-42  +5vdc (Motor)

   pin-43  Ground

   pin-44  Reserved

                             ST-92255AG

                           Marathon 2250

       FORMATTED CAPACITY _______________________2250.17

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________

       HEADS ______PHYSICAL______________________10

       DISCS (3.5 in) ___________________________5

       MEDIA TYPE _______________________________THIN FILM on GLASS

       HEAD TYPE ________________________________MR

       RECORDING METHOD _________________________ZBR PRML (8/9)

       INTERNAL TRANSFER RATE (Mbits/sec) _______up to 60.8

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 16.6

       PIO MODE _________________________________4

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________4,508

       AVERAGE LATENCY (mSEC) ___________________6.65

       BUFFER ___________________________________103 Kbyte

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________ATA

       SECTORS PER DRIVE (LBA mode) _____________4,394,940

       TPI (TRACKS PER INCH) ____________________5,555

       BPI (KBITS PER INCH) _____________________120

       AVERAGE ACCESS (ms read/write) ___________12/14

       SINGLE TRACK SEEK (ms read/write) ________4/5

       MAX FULL SEEK (ms read/write) ____________26/28

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating (Read/Write) __________125

                abnormal ________________________

                nonoperating ____________________350

       ACOUSTICS (dBA) (typ/max) ________________24/30

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +5V START-UP (amps) __1.3

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________2.5

                           IDLE _________________1.2

                           STANDBY ______________0.3

                           SLEEP ________________0.1

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):         /17.20

                        Width  (inches/mm):     2.76/70.10

                        Depth  (inches/mm):         /100.45

                        Weight      (oz/g):         /204

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       4360 cyl, 16 heads, 63 sectors = 2,250,178,560

                       DOS operating systems may require a translation

                       that uses larger values for the CMOS head

                       parameter which lowers cylinders below 1024:

       545 cyl, 128 heads, 63 sectors = 2,250,178,560

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software, system BIOS which supports LBA mode

                       or bios driven host adapters. Otherwise,

                       capacity may be limited to:

       1024 cyl, 16 heads, 63 sectors = 528,482,304

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (12/16/96)


ST-9235AG
ST-9235AG and ST-9235A

TOP       ÚÄ 44-pin I/O Connector (* see below)

                                      ³                     o o

                                    ::::::::::::ù::::::::1  o o

                               ÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                                ³           ³ ³

       pin-20 removed for keying ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ           ³ ³

                                                            ³ ³

                                                            ³ ³

 Drive is Master, no Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 0 0

 Drive is Master, Seagate Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 0

 Drive is Slave to another Seagate 2.5" Master ÄÄÄÄÄÄÄÄÄÄÄÄ 0 1

 Reserved Position (Do Not Use) ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 1

 * Drive uses +5vdc power supplied to the drive

   via the interface connector. The drive does

   NOT make use of a +12vdc power line.

   pin-41  +5vdc (Logic)

   pin-42  +5vdc (Motor)

   pin-43  Ground

   pin-44  Reserved

                             ST-9235AG

       UNFORMATTED CAPACITY _____________________

       FORMATTED CAPACITY (xx SECTORS) __________209.7

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________

       CYLINDERS ________________________________

       HEADS ____________________________________6

       DISCS (2.5 in) ___________________________3

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (2,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______up to 16

       SPINDLE SPEED (RPM) ______________________3,449

       AVERAGE LATENCY (mSEC) ___________________8.69

       BUFFER ___________________________________64 Kbyte

        Multisegmented cache

       INTERFACE ________________________________AT

       SECTORS PER DRIVE ________________________409,760

       TPI (TRACKS PER INCH) ____________________2,750

       BPI (BITS PER INCH) ______________________45,500

       FCI (FLUX DENSITY) _______________________30,300

       AVERAGE ACCESS (ms) ______________________16

       SINGLE TRACK SEEK (ms) ___________________5

       MAX FULL SEEK (ms) _______________________27

       MTBF (power-on hours) Office _____________150,000

       SHOCK (G's):

         ST9235A   operating/nonoperating _______10/150

         ST9235AG  operating/nonoperating _______100/150

          SafeRite shock sensor

       ACOUSTICS (dBA) (typ/max) ________________30/33

       POWER REQUIREMENTS: +5V START-UP (amps) __1.2

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________1.8

                           IDLE _________________0.7

                           STANDBY ______________0.17

                           SLEEP ________________0.17

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     0.75/19.05

                        Width  (inches/mm):     2.76/70.10

                        Depth  (inches/mm):     4.01/101.85

                        Weight    (ozs/kg):     7.25/0.21

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:   985 cyl, 13 heads, 32 sectors = 209,797,120

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (01/04/96)


ST-9240AG
ST-9240AG (Marathon 210sl)

                            TOP       ÚÄ 44-pin I/O Connector (* see below)

                                      ³                     o o

                                    ::::::::::::ù::::::::1  o o

                               ÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                                ³           ³ ³

       pin-20 removed for keying ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ           ³ ³

                                                            ³ ³

                                                            ³ ³

 Drive is Master, no Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 0 0

 Drive is Master, Seagate Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 0

 Drive is Slave to another Seagate 2.5" Master ÄÄÄÄÄÄÄÄÄÄÄÄ 0 1

 Reserved Position (Do Not Use) ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 1

 * Drive uses +5vdc power supplied to the drive

   via the interface connector. The drive does

   NOT make use of a +12vdc power line.

   pin-41  +5vdc (Logic)

   pin-42  +5vdc (Motor)

   pin-43  Ground

   pin-44  Reserved

                             ST-9240AG

                             Marathon 210sl

       UNFORMATTED CAPACITY _____________________

       FORMATTED CAPACITY (xx SECTORS) __________210.4

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________

       CYLINDERS ________________________________

       HEADS ____________________________________4

       DISCS (2.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______up to 29.5

       EXTERNAL TRANSFER RATE (Mbytes) __________up to 13.3

       SPINDLE SPEED (RPM) ______________________3,980

       AVERAGE LATENCY (mSEC) ___________________7.54

       BUFFER ___________________________________120 Kbyte

        Adaptive cache, write cache optional

       INTERFACE ________________________________AT

       SECTORS PER DRIVE ________________________411,008

       TPI (TRACKS PER INCH) ____________________3,282

       BPI (BITS PER INCH) ______________________59,124

       FCI (FLUX CHANGES PER INCH) ______________44,360

       AVERAGE ACCESS (ms) __(read/write)________16/20

       SINGLE TRACK SEEK (ms) __(read/write)_____6/7

       MAX FULL SEEK (ms) __(read/write)_________26/28

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's) operating/nonoperating _______100/150

        SafeRite shock sensor

       ACOUSTICS __(dBA Max)__(idle/seek)________28/30

       POWER REQUIREMENTS: +5V START-UP (amps)___0.60

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________1.7

                           IDLE _________________0.73

                           STANDBY ______________0.16

                           SLEEP ________________0.10

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     .504/12.80

                        Width  (inches/mm):     2.76/70.10

                        Depth  (inches/mm):     4.01/101.85

                        Weight    (oz/kg):      5.4/0.154

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:   988 cyl, 8 heads, 52 sectors = 210,436,096

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (08/09/94)


ST-9252A


ST-9295AG

                            TOP       ÚÄ 44-pin I/O Connector (* see below)

                                      ³                     o o

                                    ::::::::::::ù::::::::1  o o

                               ÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                                ³           ³ ³

       pin-20 removed for keying ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ           ³ ³

                                                            ³ ³

                                                            ³ ³

 Drive is Master, no Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 0 0

 Drive is Master, Seagate Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 0

 Drive is Slave to another Seagate 2.5" Master ÄÄÄÄÄÄÄÄÄÄÄÄ 0 1

 Reserved Position (Do Not Use) ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 1

 * Drive uses +5vdc power supplied to the drive

   via the interface connector. The drive does

   NOT make use of a +12vdc power line.

   pin-41  +5vdc (Logic)

   pin-42  +5vdc (Motor)

   pin-43  Ground

   pin-44  Reserved

                             ST-9295AG

       UNFORMATTED CAPACITY _____________________

       FORMATTED CAPACITY (xx SECTORS) __________261

       AVERAGE SECTORS PER TRACK ________________ rounded down

       ACTUATOR TYPE ____________________________STRAIGHT ARM

       TRACKS ___________________________________

       CYLINDERS ________________________________(user)

       HEADS ____________________________________

       DISCS (2.5 in) ___________________________

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (2,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______up to 22.4

       SPINDLE SPEED (RPM) ______________________3,450

       AVERAGE LATENCY (mSEC) ___________________8.69

       BUFFER ___________________________________120 Kbyte

        Adaptive cache

       INTERFACE ________________________________AT

       BYTES PER TRACK __________________________

       SECTORS PER DRIVE ________________________509,765

       TPI (TRACKS PER INCH) ____________________x,xxx

       BPI (BITS PER INCH) ______________________xx,xxx

       AVERAGE ACCESS (ms) ______________________16

       SINGLE TRACK SEEK (ms) ___________________5

       MAX FULL SEEK (ms) _______________________27

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's) operating/nonoperating _______100/150

        SafeRite shock sensor

       POWER REQUIREMENTS: +5V START-UP (amps) __1.2

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________1.8

                           IDLE _________________0.7

                           STANDBY ______________0.17

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     0.75/19.05

                        Width  (inches/mm):     2.76/70.10

                        Depth  (inches/mm):     4.01/101.85

                        Weight    (ozs/kg):     7.25/0.21

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:   cyl, heads, sectors =

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (12/07/92)


ST-9300AG
ST-9300AG (Marathon 260sl)

                            TOP       ÚÄ 44-pin I/O Connector (* see below)

                                      ³                     o o

                                    ::::::::::::ù::::::::1  o o

                               ÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                                ³           ³ ³

       pin-20 removed for keying ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ           ³ ³

                                                            ³ ³

                                                            ³ ³

 Drive is Master, no Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 0 0

 Drive is Master, Seagate Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 0

 Drive is Slave to another Seagate 2.5" Master ÄÄÄÄÄÄÄÄÄÄÄÄ 0 1

 Reserved Position (Do Not Use) ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 1

 * Drive uses +5vdc power supplied to the drive

   via the interface connector. The drive does

   NOT make use of a +12vdc power line.

   pin-41  +5vdc (Logic)

   pin-42  +5vdc (Motor)

   pin-43  Ground

   pin-44  Reserved

                             ST-9300AG

                             Marathon 260sl

       UNFORMATTED CAPACITY _____________________

       FORMATTED CAPACITY (xx SECTORS) __________262.1

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________

       CYLINDERS ________________________________

       HEADS ____________________________________4

       DISCS (2.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______up to 29.5

       EXTERNAL TRANSFER RATE (Mbytes) __________up to 13.3

       SPINDLE SPEED (RPM) ______________________3,980

       AVERAGE LATENCY (mSEC) ___________________7.54

       BUFFER ___________________________________120 Kbyte

        Adaptive cache, write cache optional

       INTERFACE ________________________________AT

       SECTORS PER DRIVE ________________________512,100

       TPI (TRACKS PER INCH) ____________________3,282

       BPI (BITS PER INCH) ______________________59,124

       FCI (FLUX CHANGES PER INCH) ______________44,360

       AVERAGE ACCESS (ms) __(read/write)________16/20

       SINGLE TRACK SEEK (ms) __(read/write)_____6/7

       MAX FULL SEEK (ms) __(read/write)_________26/28

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's) operating/nonoperating _______100/150

        SafeRite shock sensor

       ACOUSTICS __(dBA Max)__(idle/seek)________28/30

       POWER REQUIREMENTS: +5V START-UP (amps)___0.60

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________1.7

                           IDLE _________________0.73

                           STANDBY ______________0.16

                           SLEEP ________________0.10

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     .504/12.80

                        Width  (inches/mm):     2.76/70.10

                        Depth  (inches/mm):     4.01/101.85

                        Weight    (oz/kg):      5.4/0.154

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:   569 cyl, 15 heads, 60 sectors = 262,195,200

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (08/09/94)


ST-9342A
ST-9342A, Filepro 340 AT (Trigger CFN340A)

           TOP       ÚÄ 44-pin I/O Connector (* see below)

                     ³                      ÚÄÄ Factory test

                     ³                     oÁo

                   ::::::::::::ù::::::::1  o o

              ÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                               ³

    pin-20 removed for keying ÄÙ              o-o  Master ON, Slave OFF

                                              o-o  CAM on, ISA off

 * Drive uses +5vdc power supplied to the drive

   via the interface connector. The drive does

   NOT make use of a +12vdc power line.

   pin-41  +5vdc (Logic)

   pin-42  +5vdc (Motor)

   pin-43  Ground

   pin-44  Reserved

                             ST-9342A

                 Filepro 340 AT (Trigger CFN340A)

       FORMATTED CAPACITY _______________________345

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________1598

       HEADS ______PHYSICAL______________________6

       DISCS (3.5 in) ___________________________3

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (Mbits/sec) _______19 to 32

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 8

       PIO MODE _________________________________1

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________4000

       AVERAGE LATENCY (mSEC) ___________________7.5

       BUFFER ___________________________________32K

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________ATA

       SECTORS PER DRIVE (LBA mode) _____________672,924

       TPI (TRACKS PER INCH) ____________________3004

       BPI (KBITS PER INCH) _____________________65,564

       AVERAGE ACCESS (ms) ______________________13

       SINGLE TRACK SEEK (ms) ___________________3

       MAX FULL SEEK (ms) _______________________24

       MTBF (power-on hours) Office _____________150,000

       SHOCK (G's):

                operating (Read/Write) __________10

                abnormal ________________________

                nonoperating ____________________200

       ACOUSTICS (bels) (typ/max) _______________34/

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS:  +5V START-UP (amps) _1.0

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________1.1

                           IDLE _________________1.0

                           STANDBY ______________.20

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):   .77/19.5

                        Width  (inches/mm):  2.75/69.8

                        Depth  (inches/mm):  4.00/101.6

                        Weight     (oz/kg):   7.0/0.20

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations: 667 cyl, 16 heads, 63 sectors = 344,236,032

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (02/21/96)


ST-9352A
ST-9352A, Filepro 350 AT (Kiwi CFL350A)

           TOP       ÚÄ 44-pin I/O Connector (* see below)

                     ³                      ÚÄÄ Factory tes

                     ³                     oÁo

                   ::::::::::::ù::::::::1  o o

              ÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                               ³

    pin-20 removed for keying ÄÙ

                             o-o  Cable Select

                             o-o  CAM off, ISA on

                             o-o  Master ON, Slave OFF

 * Drive uses +5vdc power supplied to the drive

   via the interface connector. The drive does

   NOT make use of a +12vdc power line.

   pin-41  +5vdc (Logic)

   pin-42  +5vdc (Motor)

   pin-43  Ground

   pin-44  Reserved

                             ST-9352A

                 Filepro 350 AT (Kiwi CFL350A)

       FORMATTED CAPACITY _______________________350

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________2225

       HEADS ______PHYSICAL______________________4

       DISCS (3.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (Mbits/sec) _______19 to 32

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 11.2

       PIO MODE _________________________________2

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________3750

       AVERAGE LATENCY (mSEC) ___________________8.0

       BUFFER ___________________________________32K

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________ATA

       SECTORS PER DRIVE (LBA mode) _____________

       TPI (TRACKS PER INCH) ____________________4110

       BPI (KBITS PER INCH) _____________________70.6K

       AVERAGE ACCESS (ms) ______________________12

       SINGLE TRACK SEEK (ms) ___________________3

       MAX FULL SEEK (ms) _______________________20

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating (Read/Write) __________20

                abnormal ________________________

                nonoperating ____________________300

       ACOUSTICS (bels) (typ/max) _______________42/

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS:  +5V START-UP (amps) _1.0

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________1.0

                           IDLE _________________.85

                           STANDBY ______________.15

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):   .50/12.7

                        Width  (inches/mm):  2.75/69.8

                        Depth  (inches/mm):  4.00/101.6

                        Weight     (oz/kg):   5.0/0.142

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations: 905 cyl, 12 heads, 63 sectors = 350,300,160

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (02/21/96)


ST-9385AG
ST-9385AG (Marathon 340)

                            TOP       ÚÄ 44-pin I/O Connector (* see below)

                                      ³                     o o

                                    ::::::::::::ù::::::::1  o o

                               ÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                                ³           ³ ³

       pin-20 removed for keying ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ           ³ ³

                                                            ³ ³

                                                            ³ ³

 Drive is Master, no Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 0 0

 Drive is Master, Seagate Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 0

 Drive is Slave to another Seagate 2.5" Master ÄÄÄÄÄÄÄÄÄÄÄÄ 0 1

 Reserved Position (Do Not Use) ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 1

 * Drive uses +5vdc power supplied to the drive

   via the interface connector. The drive does

   NOT make use of a +12vdc power line.

   pin-41  +5vdc (Logic)

   pin-42  +5vdc (Motor)

   pin-43  Ground

   pin-44  Reserved

                             ST-9385AG

                             Marathon 340

       FORMATTED CAPACITY (xx SECTORS) __________340

       AVERAGE SECTORS PER TRACK ________________ rounded down

       ACTUATOR TYPE ____________________________STRAIGHT ARM

       TRACKS ___________________________________

       CYLINDERS ________________________________(user)

       HEADS ____________________________________6

       DISCS (2.5 in) ___________________________3

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______16.2 to 27.7

       EXTERNAL TRANSFER RATE (Mbytes) __________up to 13.3

       SPINDLE SPEED (RPM) ______________________3,980

       AVERAGE LATENCY (mSEC) ___________________7.54

       BUFFER ___________________________________120 Kbyte

        Multisegmented cache

       INTERFACE ________________________________AT

       SECTORS PER DRIVE ________________________666,876

       TPI (TRACKS PER INCH) ____________________3,282

       BPI (BITS PER INCH) ______________________59,124

       FCI (FLUX DENSITY) _______________________44,360

       AVERAGE ACCESS (ms) ______________________16

       SINGLE TRACK SEEK (ms) ___________________5

       MAX FULL SEEK (ms) _______________________27

       MTBF (power-on hours) Office _____________300,000

       ACOUSTICS (typ/max dBA) __________________30/33

       SHOCK (G's):

                   operating/nonoperating _______100/200

                   SafeRite shock sensor

       POWER REQUIREMENTS: +5V START-UP (amps) __1.2

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________1.85

                           IDLE _________________0.9

                           STANDBY ______________0.3

                           SLEEP ________________0.25

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     0.75/19.05

                        Width  (inches/mm):     2.76/70.10

                        Depth  (inches/mm):     4.01/101.85

                        Weight    (ozs/kg):     7.4/0.21

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:   934 cyl, 14 heads, 51 sectors = 341,440,512

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (08/17/94)


ST-9420AG
ST-9420AG (Marathon 420sl)

                            TOP       ÚÄ 44-pin I/O Connector (* see below)

                                      ³                     o o

                                    ::::::::::::ù::::::::1  o o

                               ÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                                ³           ³ ³

       pin-20 removed for keying ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ           ³ ³

                                                            ³ ³

                                                            ³ ³

 Drive is Master, no Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 0 0

 Drive is Master, Seagate Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 0

 Drive is Slave to another Seagate 2.5" Master ÄÄÄÄÄÄÄÄÄÄÄÄ 0 1

 Cable Select ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 1

 * Drive uses +5vdc power supplied to the drive

   via the interface connector. The drive does

   NOT make use of a +12vdc power line.

   pin-41  +5vdc (Logic)

   pin-42  +5vdc (Motor)

   pin-43  Ground

   pin-44  Reserved

                             ST-9420AG

                             Marathon 420sl

       UNFORMATTED CAPACITY _____________________

       FORMATTED CAPACITY (xx SECTORS) __________420.8

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________

       CYLINDERS ________________________________

       HEADS ____________________________________4

       DISCS (2.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR PRML

       INTERNAL TRANSFER RATE (mbits/sec) _______up to 44

       EXTERNAL TRANSFER RATE (Mbytes) __________up to 16.6

       PIO MODE (highest) _______________________4

       DMA MODE (highest) _______________________2

       SPINDLE SPEED (RPM) ______________________4,500

       AVERAGE LATENCY (mSEC) ___________________6.67

       BUFFER ___________________________________120 Kbyte

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented, Adaptive

       INTERFACE ________________________________ATA

       SECTORS PER DRIVE (LBA mode) _____________822,016

       TPI (TRACKS PER INCH) ____________________3,807

       BPI (BITS PER INCH) ______________________90,000

       FCI (FLUX CHANGES PER INCH) ______________67,500

       AVERAGE ACCESS (ms) __(read/write)________16/20

       SINGLE TRACK SEEK (ms) __(read/write)_____6/7

       MAX FULL SEEK (ms) __(read/write)_________26/28

       MTBF (power-on hours) Office _____________300,000

       CONTACT START-STOP CYCLES ________________50,000

       SHOCK (G's) operating/nonoperating _______100/150

        SafeRite shock sensor

       ACOUSTICS __(dBA Max)__(idle/seek)________28/30

       POWER REQUIREMENTS: +5V START-UP (amps)___0.660

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________1.95

                           IDLE _________________0.90

                           STANDBY ______________0.25

                           SLEEP ________________0.15

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     .504/12.80

                        Width  (inches/mm):     2.76/70.10

                        Depth  (inches/mm):     4.01/101.85

                        Weight    (oz/kg):      5.7/0.162

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:   988 cyl, 16 heads, 52 sectors = 420,872,192

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (01/24/95)


ST-9422A
ST-9422A, Filepro 420 AT (Kiwi CFL420A)

           TOP       ÚÄ 44-pin I/O Connector (* see below)

                     ³                      ÚÄÄ Factory tes

                     ³                     oÁo

                   ::::::::::::ù::::::::1  o o

              ÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                               ³

    pin-20 removed for keying ÄÙ

                             o-o  Cable Select

                             o-o  CAM off, ISA on

                             o-o  Master ON, Slave OFF

 * Drive uses +5vdc power supplied to the drive

   via the interface connector. The drive does

   NOT make use of a +12vdc power line.

   pin-41  +5vdc (Logic)

   pin-42  +5vdc (Motor)

   pin-43  Ground

   pin-44  Reserved

                             ST-9422A

                 Filepro 420 AT (Kiwi CFL420A)

       FORMATTED CAPACITY _______________________422

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________2393

       HEADS ______PHYSICAL______________________4

       DISCS (3.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (Mbits/sec) _______19 to 33

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 11.1

       PIO MODE _________________________________2

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________3600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________64K

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________ATA

       SECTORS PER DRIVE (LBA mode) _____________

       TPI (TRACKS PER INCH) ____________________4200

       BPI (KBITS PER INCH) _____________________80K

       AVERAGE ACCESS (ms) ______________________12

       SINGLE TRACK SEEK (ms) ___________________3

       MAX FULL SEEK (ms) _______________________20

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating (Read/Write) __________20

                abnormal ________________________

                nonoperating ____________________300

       ACOUSTICS (bels) (typ/max) _______________42/

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS:  +5V START-UP (amps) _1.0

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________1.0

                           IDLE _________________.85

                           STANDBY ______________.15

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):   .50/12.7

                        Width  (inches/mm):  2.75/69.8

                        Depth  (inches/mm):  4.00/101.6

                        Weight     (oz/kg):   5.0/0.142

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations: 818 cyl, 16 heads, 63 sectors = 422,166,528

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (02/21/96)


ST-9546A
ST-9546A (Marathon 541)

                            TOP       ÚÄ 44-pin I/O Connector (* see below)

                                      ³                     o o

                                    ::::::::::::ù::::::::1  o o

                               ÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                                ³           ³ ³

       pin-20 removed for keying ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ           ³ ³

                                                            ³ ³

                                                            ³ ³

 Drive is Master, no Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 0 0

 Drive is Master, Seagate Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 0

 Drive is Slave to another Seagate 2.5" Master ÄÄÄÄÄÄÄÄÄÄÄÄ 0 1

 Cable Select ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 1

 * Drive uses +5vdc power supplied to the drive

   via the interface connector. The drive does

   NOT make use of a +12vdc power line.

   pin-41  +5vdc (Logic)

   pin-42  +5vdc (Motor)

   pin-43  Ground

   pin-44  Reserved

                             ST-9546A

                             Marathon 541

       FORMATTED CAPACITY _______________________540.3

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________

       HEADS ______PHYSICAL______________________6

       DISCS (3.5 in) ___________________________3

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR PRML

       INTERNAL TRANSFER RATE (Mbits/sec) _______up to 44

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 16.6

       PIO MODE _________________________________4

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________4,500

       AVERAGE LATENCY (mSEC) ___________________6.67

       BUFFER ___________________________________120 Kbyte

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________ATA

       SECTORS PER DRIVE (LBA mode) _____________1,055,376

       TPI (TRACKS PER INCH) ____________________3,807

       BPI (KBITS PER INCH) _____________________90,000

       AVERAGE ACCESS (ms) ______________________16

       SINGLE TRACK SEEK (ms) ___________________6

       MAX FULL SEEK (ms) _______________________26

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating (Read/Write) __________10

                abnormal ________________________

                nonoperating ____________________250

       ACOUSTICS (dBA) (typ/max) ________________26/33

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +5V START-UP (amps) __

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________2.1

                           IDLE _________________1.3

                           STANDBY ______________0.4

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     0.75/19.05

                        Width  (inches/mm):     2.76/70.10

                        Depth  (inches/mm):     4.01/101.85

                        Weight    (ozs/kg):     7.4/0.21

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       1047 cyl, 16 heads, 63 sectors = 540,352,512

                       DOS operating systems may require a system bios

                       that accepts larger values for the CMOS head

                       parameter which lowers cylinders below 1024:

        523 cyl, 32 heads, 63 sectors = 539,836,416

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software, system BIOS which supports LBA mode

                       or bios driven host adapters. Otherwise,

                       capacity may be limited to:

       1024 cyl, 16 heads, 63 sectors = 528,482,304

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (03/14/96)


ST-9550AG
ST-9550AG (Marathon 455)

                            TOP       ÚÄ 44-pin I/O Connector (* see below)

                                      ³                     o o

                                    ::::::::::::ù::::::::1  o o

                               ÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                                ³           ³ ³

       pin-20 removed for keying ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ           ³ ³

                                                            ³ ³

                                                            ³ ³

 Drive is Master, no Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 0 0

 Drive is Master, Seagate Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 0

 Drive is Slave to another Seagate 2.5" Master ÄÄÄÄÄÄÄÄÄÄÄÄ 0 1

 Reserved Position (Do Not Use) ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 1

 * Drive uses +5vdc power supplied to the drive

   via the interface connector. The drive does

   NOT make use of a +12vdc power line.

   pin-41  +5vdc (Logic)

   pin-42  +5vdc (Motor)

   pin-43  Ground

   pin-44  Reserved

                             ST-9550AG

                             Marathon 455

       UNFORMATTED CAPACITY _____________________

       FORMATTED CAPACITY (xx SECTORS) __________455

       AVERAGE SECTORS PER TRACK ________________ rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________

       CYLINDERS ________________________________(user)

       HEADS ____________________________________8

       DISCS (2.5 in) ___________________________4

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______16.2 to 27.7

       EXTERNAL TRANSFER RATE (Mbytes) __________up to 13.3

       SPINDLE SPEED (RPM) ______________________3,980

       AVERAGE LATENCY (mSEC) ___________________7.54

       BUFFER ___________________________________120 Kbyte

        Multisegmented cache

       INTERFACE ________________________________AT

       SECTORS PER DRIVE ________________________889,248

       TPI (TRACKS PER INCH) ____________________3,282

       BPI (BITS PER INCH) ______________________59,124

       FCI (FLUX DENSITY) _______________________44,360

       AVERAGE ACCESS (ms) ______________________16

       SINGLE TRACK SEEK (ms) ___________________5

       MAX FULL SEEK (ms) _______________________27

       MTBF (power-on hours) Office _____________300,000

       ACOUSTICS (typ/max dBA) __________________30/33

       SHOCK (G's):

                   operating/nonoperating _______100/200

                   SafeRite shock sensor

       POWER REQUIREMENTS: +5V START-UP (amps) __1.2

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________1.85

                           IDLE _________________0.9

                           STANDBY ______________0.3

                           SLEEP ________________0.25

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     0.75/19.05

                        Width  (inches/mm):     2.76/70.10

                        Depth  (inches/mm):     4.01/101.85

                        Weight    (ozs/kg):     7.4/0.21

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:   942 cyl, 16 heads, 59 sectors = 455,294,976

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (08/17/94)


ST-9655AG
ST-9655AG (Marathon 520)

                            TOP       ÚÄ 44-pin I/O Connector (* see below)

                                      ³                     o o

                                    ::::::::::::ù::::::::1  o o

                               ÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                                ³           ³ ³

       pin-20 removed for keying ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ           ³ ³

                                                            ³ ³

                                                            ³ ³

 Drive is Master, no Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 0 0

 Drive is Master, Seagate Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 0

 Drive is Slave to another Seagate 2.5" Master ÄÄÄÄÄÄÄÄÄÄÄÄ 0 1

 Reserved Position (Do Not Use) ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 1

 * Drive uses +5vdc power supplied to the drive

   via the interface connector. The drive does

   NOT make use of a +12vdc power line.

   pin-41  +5vdc (Logic)

   pin-42  +5vdc (Motor)

   pin-43  Ground

   pin-44  Reserved

                             ST-9655AG

                             Marathon 520

       UNFORMATTED CAPACITY _____________________

       FORMATTED CAPACITY (xx SECTORS) __________524

       AVERAGE SECTORS PER TRACK ________________ rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________

       CYLINDERS ________________________________(user)

       HEADS ____________________________________8

       DISCS (2.5 in) ___________________________4

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______16.1 to 28.2

       EXTERNAL TRANSFER RATE (Mbytes) __________up to 13.3

       SPINDLE SPEED (RPM) ______________________3,980

       AVERAGE LATENCY (mSEC) ___________________7.54

       BUFFER ___________________________________120 Kbyte

        Multisegmented cache

       INTERFACE ________________________________AT

       SECTORS PER DRIVE ________________________1,024,128

       TPI (TRACKS PER INCH) ____________________3,227

       BPI (BITS PER INCH) ______________________72,100

       FCI (FLUX DENSITY) _______________________44,360

       AVERAGE ACCESS (ms) ______________________16

       SINGLE TRACK SEEK (ms) ___________________6

       MAX FULL SEEK (ms) _______________________26

       MTBF (power-on hours) Office _____________300,000

       ACOUSTICS (typ/max dBA) __________________30/33

       SHOCK (G's):

                   operating/nonoperating _______100/100

                   SafeRite shock sensor

       POWER REQUIREMENTS: +5V START-UP (amps) __1.2

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________1.85

                           IDLE _________________0.9

                           STANDBY ______________0.3

                           SLEEP ________________0.25

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     0.75/19.05

                        Width  (inches/mm):     2.76/70.10

                        Depth  (inches/mm):     4.01/101.85

                        Weight    (ozs/kg):     7.4/0.21

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:  1016 cyl, 16 heads, 63 sectors = 524,353,536

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (08/17/94)


ST-9810AG
ST-9810A/AG (Marathon 810sl)

                            TOP       ÚÄ 44-pin I/O Connector (* see below)

                                      ³                     o o

                                    ::::::::::::ù::::::::1  o o

                               ÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                                ³           ³ ³

       pin-20 removed for keying ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ           ³ ³

                                                            ³ ³

                                                            ³ ³

 Drive is Master, no Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 0 0

 Drive is Master, Seagate Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 0

 Drive is Slave to another Seagate 2.5" Master ÄÄÄÄÄÄÄÄÄÄÄÄ 0 1

 Cable Select ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 1

 * Drive uses +5vdc power supplied to the drive

   via the interface connector. The drive does

   NOT make use of a +12vdc power line.

   pin-41  +5vdc (Logic)

   pin-42  +5vdc (Motor)

   pin-43  Ground

   pin-44  Reserved

                             ST-9810A/AG

                           Marathon 810sl

       FORMATTED CAPACITY _______________________811.3

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________

       HEADS ______PHYSICAL______________________4

       DISCS (3.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM on GLASS

       HEAD TYPE ________________________________MR

       RECORDING METHOD _________________________ZBR PRML (8/9)

       INTERNAL TRANSFER RATE (Mbits/sec) _______up to 44

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 16.6

       PIO MODE _________________________________4

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________3,968

       AVERAGE LATENCY (mSEC) ___________________7.56

       BUFFER ___________________________________120 Kbyte

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________ATA

       SECTORS PER DRIVE (LBA mode) _____________1,584,576

       TPI (TRACKS PER INCH) ____________________6,027

       BPI (KBITS PER INCH) _____________________109

       AVERAGE ACCESS (read/write ms) ___________14/18

       SINGLE TRACK SEEK (read/write ms) ________5/6

       MAX FULL SEEK (read/write ms) ____________26/28

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

        ST9810A operating (Read/Write) __________10

       ST9810AG operating (Read/Write) __________100

                abnormal ________________________

                nonoperating ____________________300

       ACOUSTICS (dBA) (typ/max) ________________24/28

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +5V START-UP (amps) __.60

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________2.15

                           IDLE _________________0.9

                           STANDBY ______________0.3

                           SLEEP ________________0.2

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     .504/12.80

                        Width  (inches/mm):     2.76/70.10

                        Depth  (inches/mm):         /100.45

                        Weight    (oz/kg):          /0.162

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       1572 cyl, 16 heads, 63 sectors = 811,302,912

                       DOS operating systems may require a translation

                       that uses larger values for the CMOS head

                       parameter which lowers cylinders below 1024:

        786 cyl, 32 heads, 63 sectors = 811,302,912

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software, system BIOS which supports LBA mode

                       or bios driven host adapters. Otherwise,

                       capacity may be limited to:

       1024 cyl, 16 heads, 63 sectors = 528,482,304

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (09/11/96)


ST-9816AG
ST-9816AG (Marathon 810)

                            TOP       ÚÄ 44-pin I/O Connector (* see below)

                                      ³                     o o

                                    ::::::::::::ù::::::::1  o o

                               ÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                                ³           ³ ³

       pin-20 removed for keying ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ           ³ ³

                                                            ³ ³

                                                            ³ ³

 Drive is Master, no Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 0 0

 Drive is Master, Seagate Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 0

 Drive is Slave to another Seagate 2.5" Master ÄÄÄÄÄÄÄÄÄÄÄÄ 0 1

 Cable Select ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 1

 * Drive uses +5vdc power supplied to the drive

   via the interface connector. The drive does

   NOT make use of a +12vdc power line.

   pin-41  +5vdc (Logic)

   pin-42  +5vdc (Motor)

   pin-43  Ground

   pin-44  Reserved

                             ST-9816AG

                             Marathon 810

       FORMATTED CAPACITY _______________________810

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________

       HEADS ______PHYSICAL______________________8

       DISCS (3.5 in) ___________________________4

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (Mbits/sec) _______up to 44

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 16.6

       PIO MODE _________________________________4

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________4,500

       AVERAGE LATENCY (mSEC) ___________________6.67

       BUFFER ___________________________________120 Kbyte

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________ATA

       SECTORS PER DRIVE (LBA mode) _____________1,583,568

       TPI (TRACKS PER INCH) ____________________3,807

       BPI (KBITS PER INCH) _____________________90.0

       AVERAGE ACCESS (ms) ______________________16

       SINGLE TRACK SEEK (ms) ___________________6

       MAX FULL SEEK (ms) _______________________26

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating (Read/Write) __________100

                abnormal ________________________

                nonoperating ____________________250

       ACOUSTICS (dBA) (typ/max) ________________26/33

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +5V START-UP (amps) __.70

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________2.1

                           IDLE _________________1.3

                           STANDBY ______________0.4

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     0.75/19.05

                        Width  (inches/mm):     2.76/70.10

                        Depth  (inches/mm):     4.01/101.85

                        Weight    (ozs/kg):     7.4/0.21

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       1571 cyl, 16 heads, 63 sectors = 810,786,816

                       DOS operating systems may require a system bios

                       that accepts larger values for the CMOS head

                       parameter which lowers cylinders below 1024:

        785 cyl, 32 heads, 63 sectors = 810,270,720

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software, system BIOS which supports LBA mode

                       or bios driven host adapters. Otherwise,

                       capacity may be limited to:

       1024 cyl, 16 heads, 63 sectors = 528,482,304

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (03/14/96)


ST-9840AG
ST-9840AG (Marathon 840sl)

                            TOP       ÚÄ 44-pin I/O Connector (* see below)

                                      ³                     o o

                                    ::::::::::::ù::::::::1  o o

                               ÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                                ³           ³ ³

       pin-20 removed for keying ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ           ³ ³

                                                            ³ ³

                                                            ³ ³

 Drive is Master, no Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 0 0

 Drive is Master, Seagate Slave drive present ÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 0

 Drive is Slave to another Seagate 2.5" Master ÄÄÄÄÄÄÄÄÄÄÄÄ 0 1

 Cable Select ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ 1 1

 * Drive uses +5vdc power supplied to the drive

   via the interface connector. The drive does

   NOT make use of a +12vdc power line.

   pin-41  +5vdc (Logic)

   pin-42  +5vdc (Motor)

   pin-43  Ground

   pin-44  Reserved

                             ST-9840AG

                           Marathon 840sl

       FORMATTED CAPACITY _______________________840.20

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________

       HEADS ______PHYSICAL______________________4

       DISCS (3.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM on GLASS

       HEAD TYPE ________________________________MR

       RECORDING METHOD _________________________ZBR PRML (8/9)

       INTERNAL TRANSFER RATE (Mbits/sec) _______up to 60.8

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 16.6

       PIO MODE _________________________________4

       DMA SUPPORT ______________________________EISA Type B

       SPINDLE SPEED (RPM) ______________________4,508

       AVERAGE LATENCY (mSEC) ___________________6.65

       BUFFER ___________________________________103 Kbyte

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________ATA

       SECTORS PER DRIVE (LBA mode) _____________1,641,340

       TPI (TRACKS PER INCH) ____________________5,555

       BPI (KBITS PER INCH) _____________________120

       AVERAGE ACCESS (ms read/write) ___________12/14

       SINGLE TRACK SEEK (ms read/write) ________4/5

       MAX FULL SEEK (ms read/write) ____________26/28

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating (Read/Write) __________125

                abnormal ________________________

                nonoperating ____________________350

       ACOUSTICS (dBA) (typ/max) ________________24/30

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +5V START-UP (amps) __1.1

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________2.2

                           IDLE _________________0.9

                           STANDBY ______________0.3

                           SLEEP ________________0.1

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________*

       Physical:

                        Height (inches/mm):     .504/12.7

                        Width  (inches/mm):     2.76/70.1

                        Depth  (inches/mm):         /100.45

                        Weight     (oz/g):          /157

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translations:

                       This translation is generally acceptable, as

                       is, for non-DOS operating systems:

       1628 cyl, 16 heads, 63 sectors = 840,204,288

                       DOS operating systems may require a translation

                       that uses larger values for the CMOS head

                       parameter which lowers cylinders below 1024:

        814 cyl, 32 heads, 63 sectors = 840,204,288

                       Other FULL-CAPACITY solutions for DOS operating

                       systems include third-party drive preparation

                       software, system BIOS which supports LBA mode

                       or bios driven host adapters. Otherwise,

                       capacity may be limited to:

       1024 cyl, 16 heads, 63 sectors = 528,482,304

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (12/16/96)


Interface Cables and Pins
Disc Drive Cables and their Pin Assignments by Interface

Select an Interface:

ATA (IDE)

ESDI

Fibre Channel - Arbitrated Loop (FC-SCA)

MFM

RLL

SCSI - Narrow Single Ended

SCSI - Narrow Differential

SCSI - Wide Single Ended

SCSI - Wide Single Ended (SCA)

XT


ST412 Interface (MFM /RLL)
 	ST412 Interface (MFM and RLL)

===================================================================

ST412 Interface (MFM and RLL) ST-506 was predecessor without buffered seek

2 Cables: 1 each 34-pin Command Cable and 1 each 20-pin Data Cable

-------------------------------------------------------------------

Command Cable Description

J1 (34-pin Command) Host/Drive Pin Assignments

     GROUND RTN     SIGNAL PIN     SIGNAL

        PIN

_____________________________________________________

                                                 3

         1              2          -HEAD SELECT 2

                                                 2

         3              4          -HEAD SELECT 2

         5              6          -WRITE GATE

         7              8*         -SEEK COMPLETE

         9             10*         -TRACK 0

        11             12*         -WRITE FAULT

                                                 0

        13             14          -HEAD SELECT 2

        15             16          -RESERVED

                                                 1

        17             18          -HEAD SELECT 2

        19             20*         -INDEX

        21             22*         -READY

        23             24          -STEP

        25 (29)**      26 (28)     -DRIVE SELECT 1 (2)

        27 (27)        28 (26)     -DRIVE SELECT 2 (1)

        29 (25)        30          -DRIVE SELECT 3

        31             32          -DRIVE SELECT 4

        33             34          -DIRECTION IN

     * STATUS ENABLED WITH DRIVE SELECT

    ** TWISTED CABLE IN PARENTHESES

J2 (20-pin Data) HOST/DRIVE PIN ASSIGNMENTS

     GROUND RTN     SIGNAL PIN     SIGNAL NAME

        PIN

_____________________________________________________________

         2              1          -DRIVE SELECTED

         4              3          RESERVED

         6              5          RESERVED

         8              7          RESERVED

        10              9          RESERVED

        12             11          GROUND

                       13          +MFM (RLL) WRITE DATA

                       14          -MFM (RLL) WRITE DATA

        16             15          GROUND

                       17          +MFM (RLL) READ DATA

                       18          -MFM (RLL) READ DATA

        20             19          GROUND


ESDI Interface
 	ESDI (Enhanced Small Device Interface)

==================================================================

ESDI (Enhanced Small Device Interface)

2 Cables: 1 each 34-pin Command Cable and 1 each 20-pin Data Cable

------------------------------------------------------------------

               ESDI INTERFACE SPECIFICATIONS

            CONTROL CABLE (J1/P1 PIN ASSIGNMENTS

             (Disk Implementation - Serial Mode)

Command Cable Description

                                    SIGNAL         GROUND

   SIGNAL NAME                       PIN             PIN

________________________________________________________________________

   -HEAD SELECT 2(3)                   2              1

   -HEAD SELECT 2(2)                   4              3

   -WRITE GATE                         6              5

   -CONFIGURATION/STATUS DATA          8              7

   -TRANSFER ACK                      10              9

   -ATTENTION                         12             11

   -HEAD SELECT 2(0)                  14             13

   -SECTOR/BYTE CLOCK/

    ADDRESS MARK FOUND                16             15

   -HEAD SELECT 2(1)                  18             17

   -INDEX                             20             19

   -READY                             22             21

   -TRANSFER REQ                      24             23

   -DRIVE SELECT 2(0)                 26             25

   -DRIVE SELECT 2(1)                 28             27

   -DRIVE SELECT 2(2)                 30             29

   -READ GATE                         32             31

   -COMMAND DATA                      34             33

             DATA CABLE (J2/P2) PIN ASSIGNMENTS

             (Disk Implementation - Serial Mode)

                                    SIGNAL         GROUND

   SIGNAL NAME                        PIN            PIN

________________________________________________________________________

   -DRIVE SELECTED                     1

   -SECTOR/BYTE CLOCK/

    ADDRESS MARK FOUND                 2

   -COMMAND COMPLETE                   3

   -ADDRESS MARK ENABLE                4

   GROUND                                             5

   +/-WRITE CLOCK                     7/8             6

   +/-READ REF CLOCK                 10/11           9/12

   +/-NRZ WRITE DATA                 13/14          15/16

   +/-NRZ READ DATA                  17/18            19

   -INDEX                              20


Command Cable
34-Pin Command Cable

    There are several types of command cables used to connect the hard disk

    to the controller. You will need to determine which of the cables listed

    below matches the cable you are using. The type of cable you are using

    will determine where the drive select jumper should be on your hard disk.

    The pin nearest to the notch on the edge connector is pin 1. Pin 1 on

    the command cable may be identified by any of the following:

    1. A triangle stamped on the connector, OR

    2. A colored stripe on the end conductor of the cable, OR

    3. A keying tab inside the connector (to prevent reverse insertion.)

        This cable is used in a system that has only one hard disk.

                  ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

                  ³ Connected to the  ³   34-pin Command Cable

                  ³ controller        ³

                  ÀÄÒÄÂÄÂÄÂÄÂÄÂÄÂÄÂÄÂÄÙ

                    º ³ ³ ³ ³ ³ ³ ³ ³

        ÚÄÄÄÄÄÄÄÄÄ->º ³ ³ ³ ³ ³ ³ ³ ³<ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

        ³The double º ³ ³ ³ ³ ³ ³ ³ ³   This cable is designed for ³

        ³line       º ³ ³ ³ ³ ³ ³ ³ ³ use with a single hard disk. ³

        ³indicates  º ³ ³ ³ ³ ³ ³ ³ ³ The drive select jumper must ³

        ³the        º ³ ³ ³ ³ ³ ³ ³ ³ be on the first position and ³

        ³colored    º ³ ³ ³ ³ ³ ³ ³ ³ the terminating resistor     ³

        ³edge of    º ³ ³ ³ ³ ³ ³ ³ ³ should be left on the drive. ³

        ³the cable  º ³ ³ ³ ³ ³ ³ ³ ³<ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

        ÀÄÄÄÄÄÄÄÄÄÄ>º ³ ³ ³ ³ ³ ³ ³ ³

                  ÚÄÐÄÁÄÁÄÁÄÁÄÁÄÁÄÁÄÁÄ¿

                  ³ Connected to a    ³

                  ³ single hard disk. ³

                  ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

The cable shown below is designed for use in systems that have two hard

disks, although it can also be used in single hard disk systems. When

attaching the cables to your hard disk and floppy disk drives, please make

note of the following:

    1. The cable used on the floppy drive has the reversed (twisted) wires

        nearest the edge with the colored wire (pin 1), AND

    2. The wide (command) cable attached to the hard disk has the twisted (*)

        wires furthest from the edge with the colored wire (pin 1).

  * Your hard disk command cable may not have any twisted wires. If this is

    the case, please see the note below.

            ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

            ³ Connected to the ³

            ³ controller       ³   34-pin Command Cable

            ÀÄÒÄÂÄÂÄÂÄÂÄÂÄÂÄÂÄÂÙ

              º ³ ³ ³ ³ ³ ³ ³ ³

 ÚÄÄÄÄÄÄÄÄÄÄ->º ³ ³ ³ ³ ³ ³ ³ ³

 ³The double  º ³ ³ ³ ³ ³ ³ ³ ³

 ³line        º ³ ³ ³ ³ ³ ³ ³ ³

 ³indicates   º ³ ³ ³ ³ ³ ³ ³ ³

 ³the         º ³ ³ ³ ³ ³ ³ ³ ³

 ³colored     º ³ ³ ³ ³ ³ ³ ³ ³

 ³edge of     º ³ ³ ³ ³ ³ ³ ³ ³

 ³the cable   º ³ ³ ³ ³ ³ ³ ³ ³

 ÀÄÄÄÄÄÄÄÄÄÄ->º ³ ³ ³ ³ ³ ³ ³ ³    ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

              º ³ ³ ³ ³ ³ ³ ³ ³    ³ This connector is for the 2nd  ³

              º ³ ³ ³ ³ ³ ³ ³ ³    ³ hard disk in the computer. The ³

              º ³ ³ ³ ³ ³ ³ ³ ³    ³ drive select jumper should be  ³

              º ³ ³ ³ ³ ³ ³ ³ ³    ³ in the 2nd position and the    ³

           ÚÄÄÐÄÁÄÁÄÁÄÁÄÁÄÁÄÁÄÁ¿   ³ terminating resistor should be ³

           ³ Connected to the  ³ <ÄÙ removed from the disk drive.   ³

           ³ 2nd hard disk.    ³ <ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

           ÀÄÄÒÄÂÄÂÄÂÄÂÄÂÄÄÄÂÄÂÙ

              º ³ ³ ³ ³ ³ | ³ ³      ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

              º ³ ³ ³ ³ ³\ /³ ³      ³If your cable does NOT have ³

              º ³ ³ ³ ³ ³   ³ ³      ³this twisted set of wires,  ³

              º ³ ³ ³ ³ ³ T ³ ³      ³then drive one must have the³

              º ³ ³ ³ ³ ³ W ³ ³<ÄÄÄÄÄÙdrive select jumper in the  ³

              º ³ ³ ³ ³ ³ I ³ ³ NOTE! 1st position.               ³

              º ³ ³ ³ ³ ³ S ³ ³<ÄÄÄÄÄ¿       * CAUTION *          ³

              º ³ ³ ³ ³ ³ T ³ ³      ³THIS APPLIES ONLY WHEN THERE³

              º ³ ³ ³ ³ ³   ³ ³      ³IS NO TWIST IN THE CABLE!!  ³

              º ³ ³ ³ ³ ³/ \³ ³      ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

              º ³ ³ ³ ³ ³ | ³ ³

            ÚÄÐÄÁÄÁÄÁÄÁÄÁÄÄÄÁÄÁ¿

            ³Connected to the  ³ <ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

            ³1st hard disk     ³ <¿ This connector is for the 1st ³

            ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ  ³ hard disk in the computer. If ³

                                  ³ your cable DOES have a twist, ³

                                  ³ then the drive select jumper  ³

                                  ³ should be in the 2nd position ³

                                  ³ and the terminating resistor  ³

                                  ³ should be left on the disk    ³

                                  ³ drive.                        ³

                                  ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ


SCSI - Standard (Narrow) Interface
 	SCSI (SMALL COMPUTER SYSTEM INTERFACE)

==================================================================

SCSI (SMALL COMPUTER SYSTEM INTERFACE) CONNECTOR PIN ASSIGNMENTS

50-pin Cable

Typical 50 pin I/O Cable Connection

         ³

    J1ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ1¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     Íµ:::::::::::::::::::::::::ÆÍ³ 0 0 0 0 ³ÍÍ

      ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

------------------------------------------------------------------

SCSI - Standard (Narrow)

SCSI (Small Computer System Interface) is an intelligent device

interface that allows up to 8 devices (usually 7 plus the host system)

to be connected together using up to a 6 meter cable. Unlike other

older interfaces, requests on a SCSI bus are just that, requests. For

example, rather than the low-level device commands like the familiar

STEP+ and STEP- of ST412, SCSI accesses data using the higher level

SEEK to a location ( LBA or logical block address on drives ).

Input voltages may vary from a low of 0VDC to a high of +5.25VDC.

These devices ARE NOT BUS COMPATIBLE with differential SCSI devices.

They are hovever command compatible. Attempting to share the SCSI bus

with a differential device will quite possibly damage the single-ended

SCSI device. Pin designations are as follows, and all signals are

active low (true is a voltage level between 0 and +0.8 VDC, and false

is defined as a voltage between +2 and +5.25 VDC).

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³PIN NUMBER³SIGNAL ³DESCRIPTION ³PIN NUMBER³SIGNAL  ³ DESCRIPTION   ³

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³    1     ³ GND   ³GROUND      ³    26    ³TERMPWR ³TERMINATION PWR³

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³    2     ³ DB0   ³DATA BIT 0  ³    27    ³  GND   ³ GROUND        ³

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³    3     ³ GND   ³GROUND      ³    28    ³  GND   ³ GROUND        ³

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³    4     ³ DB1   ³DATA BIT 1  ³    29    ³  GND   ³ GROUND        ³

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³    5     ³ GND   ³GROUND      ³    30    ³  GND   ³ GROUND        ³

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³    6     ³ DB2   ³DATA BIT 2  ³    31    ³  GND   ³ GROUND        ³

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³    7     ³ GND   ³GROUND      ³    32    ³  ATN   ³ ATTENTION     ³

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³    8     ³ DB3   ³DATA BIT 3  ³    33    ³  GND   ³ GROUND        ³

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³    9     ³ GND   ³GROUND      ³    34    ³  GND   ³ GROUND        ³

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³   10     ³ DB4   ³DATA BIT 4  ³    35    ³  GND   ³ GROUND        ³

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³   11     ³ GND   ³GROUND      ³    36    ³  BSY   ³ BUSY          ³

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³   12     ³ DB5   ³DATA BIT 5  ³    37    ³  GND   ³ GROUND        ³

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³   13     ³ GND   ³GROUND      ³    38    ³  ACK   ³ ACKNOWLEDGE   ³

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³   14     ³ DB6   ³DATA BIT 6  ³    39    ³  GND   ³ GROUND        ³

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³   15     ³ GND   ³GROUND      ³    40    ³  RST   ³ RESET         ³

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³   16     ³ DB7   ³DATA BIT 7  ³    41    ³  GND   ³ GROUND        ³

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³   17     ³ GND   ³GROUND      ³    42    ³  MSG   ³ MEGSSAGE      ³

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³   18     ³ DBP   ³DATA PARITY ³    43    ³  GND   ³ GROUND        ³

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³   19     ³ GND   ³GROUND      ³    44    ³  SEL   ³ SELECT        ³

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³   20     ³ GND   ³GROUND      ³    45    ³  GND   ³ GROUND        ³

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³   21     ³ GND   ³GROUND      ³    46    ³  C/D   ³ CONTROL/DATA  ³

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³   22     ³ GND   ³GROUND      ³    47    ³  GND   ³ GROUND        ³

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³   23     ³ GND   ³GROUND      ³    48    ³  REQ   ³ REQUEST       ³

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³   24     ³ GND   ³GROUND      ³    49    ³  GND   ³ GROUND        ³

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³   25     ³ GND   ³GROUND      ³    50    ³  I/O   ³ INPUT/OUTPUT  ³

ÀÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

ACK (Acknowledge): A signal driven by an Initiator to indicate an

acknowledgement for a REQ/ACK data transfer handshake.

ATN (Attention): A signal driven by an Initiator to indicate the

attention condition.

BSY (Busy): An "or-tied" signal which indicates that the bus is in

use.

C/D (Control/Data): A signal driven by a Target. It indicates whether

control or data information is on the data bus. True indicates

Control.

DB(7-0) (Data Bus): Contains the data that is sent from one device to

the other. Driven by either device, as determined by the state of the

I/O signal.

DB(P) (Data Bus Parity): Contains the parity bit for the data that is

sent on DB(7-0) from one device to the other during an information

transfer.

I/O (Input/Output): A signal driven by a Target which controls the

direction of data flow in the data bus, with respect to an Initiator.

True indicates input to the Initiator.

MSG (Message): A signal driven by a Target during the message phase.

REQ (Request): A signal driven by a Target to indicate a request for a

REQ/ACK data transfer handshake.

RST (Reset): An "or-tied" signal which indicates the reset condition.

SEL (Select): A signal used by an Initiator to select a Target or by a

Target to reselect an Intiator.


SCSI - Differential (Narrow) Interface
SCSI - Differential

=====================================================================

SCSI - Differential

SCSI (Small Computer System Interface) is an intelligent device

interface that allows up to 8 devices (usually 7 plus the host system)

to be connected together. Unlike other older interfaces, requests on a

SCSI bus are just that, requests. For example, rather than the

low-level device commands like the familiar STEP+ and STEP- of ST412,

SCSI accesses data using the higher level SEEK to a location ( LBA or

logical block address on drives ).

Differential SCSI (Small Computer System Interface) varies from

standard SCSI at the bus level in that it is capable of operating up

to a 25 meter cable, and the electrical specifications are quite

different. Input voltages vary from a low of -7VDC to a high of

+12VDC. These high voltage changes are measured from the positive

( + or POS ) portion of a signal, in relation to the negative

( - or NEG ) signal of the same name.

These devices ARE NOT BUS COMPATIBLE with SCSI standard devices. they

are hovever command compatible. Attempting to share the SCSI bus with

a non-differential device will quite possibly damage the single-ended

SCSI device. The electrical specification follows the EIA RS-485-1983

standard. Pin designations are as follows :

ÚÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

³PIN NUMBER³SIGNAL ³DESCRIPTION    ³PIN NUMBER³SIGNAL  ³ DESCRIPTION    ³

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³    1     ³ GND   ³SHIELD GROUND  ³    26    ³TERMPWR ³TERMINATION PWR ³

ÃÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ´

³    2     ³ GND   ³GROUND         ³    27    ³  GND   ³ GROUND         ³

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³    3     ³+DB0   ³POS DATA BIT 0 ³    28    ³  GND   ³ GROUND         ³

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³    4     ³-DB0   ³NEG DATA BIT 0 ³    29    ³ +ATN   ³ POS ATTENTION  ³

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³    5     ³+DB1   ³POS DATA BIT 1 ³    30    ³ -ATN   ³ NEG ATTENTION  ³

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³    6     ³-DB1   ³NEG DATA BIT 1 ³    31    ³  GND   ³ GROUND         ³

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³    7     ³+DB2   ³POS DATA BIT 2 ³    32    ³  GND   ³ GROUND         ³

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³    8     ³-DB2   ³NEG DATA BIT 2 ³    33    ³ +BSY   ³ POS BUSY       ³

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³    9     ³+DB3   ³POS DATA BIT 3 ³    34    ³ -BSY   ³ NEG BUSY       ³

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³   10     ³-DB3   ³NEG DATA BIT 3 ³    35    ³ +ACK   ³POS ACKNOWLEDGE ³

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³   11     ³+DB4   ³POS DATA BIT 4 ³    36    ³ -ACK   ³NEG ACKNOWLEDGE ³

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³   12     ³-DB4   ³NEG DATA BIT 4 ³    37    ³ +RST   ³ POS RESET      ³

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³   13     ³+DB5   ³POS DATA BIT 5 ³    38    ³ -RST   ³ NEG RESET      ³

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³   14     ³-DB5   ³NEG DATA BIT 5 ³    39    ³ +MSG   ³ POS MESSAGE    ³

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³   15     ³+DB6   ³POS DATA BIT 6 ³    40    ³ -MSG   ³ NEG MESSAGE    ³

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³   16     ³-DB6   ³NEG DATA BIT 6 ³    41    ³ +SEL   ³ POS SELECT     ³

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³   17     ³+DB7   ³POS DATA BIT 7 ³    42    ³ -SEL   ³ NEG SELECT     ³

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³   18     ³-DB7   ³NEG DATA BIT 7 ³    43    ³ +C/D   ³POS COMMAND/DATA³

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³   19     ³+DBP   ³POS PARITY BIT ³    44    ³ -C/D   ³NEG COMMAND/DATA³

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³   20     ³-DBP   ³NEG PARITY BIT ³    45    ³ +REQ   ³ POS REQUEST    ³

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³   21     ³DIFFSEN³NOT USED       ³    46    ³ -REQ   ³ NEG REQUEST    ³

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³   22     ³ GND   ³GROUND         ³    47    ³ +I/O   ³POS INPUT/OUTPUT³

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³   23     ³ GND   ³GROUND         ³    48    ³ -I/O   ³NEG INPUT/OUTPUT³

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³   24     ³ GND   ³GROUND         ³    49    ³  GND   ³ GROUND         ³

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³   25     ³TERMPWR³GROUND         ³    50    ³  GND   ³ GROUND         ³

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SCSI Wide - Interface
SCSI - Wide

Typical 68-pin I/O cable connector

(TOP)                   Auxiliary

          ___________________  ÚÄÄ  Ä1¿/ÍÍÍÍÍÍÍÍÍ\

        Í( ×××××××××××××××××1)Í³::::::³³ 0 0 0 0 ÆÍ

          \ÄÄÄÄÄÄÄÄÄÄÄÄ³ÄÄÄÄ/  À  ÄÄ  ÙÀÄ5ÄGÄGÄ12Ù

       68 pin I/O CableÙ

       Connection Male

  68-pin SCSI Wide, Single Ended

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  ³            Connector     Cable           Connector           ³

  ³ Signal     CONTACT       CONDUCTOR       CONTACT    Signal   ³

  ³ Name       Number        Number          Number     Name     ³

  ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ

  ³ Ground      1            1 ³ 2            35        -DB12    ³

  ³ Ground      2            3 ³ 4            36        -DB13    ³

  ³ Ground      3            5 ³ 6            37        -DB14    ³

  ³ Ground      4            7 ³ 8            38        -DB15    ³

  ³ Ground      5            9 ³ 10           39        -DBP1    ³

  ³ Ground      6            11³ 12           40        -DB0     ³

  ³ Ground      7            13³ 14           41        -DB1     ³

  ³ Ground      8            15³ 16           42        -DB2     ³

  ³ Ground      9            17³ 18           43        -DB3     ³

  ³ Ground      10           19³ 20           44        -DB4     ³

  ³ Ground      11           21³ 22           45        -DB5     ³

  ³ Ground      12           23³ 24           46        -DB6     ³

  ³ Ground      13           25³ 26           47        -DB7     ³

  ³ Ground      14           27³ 28           48        -DBP     ³

  ³ Ground      15           29³ 30           49        Ground   ³

  ³ Ground      16           31³ 32           50        Ground   ³

  ³ TermPwr     17           33³ 34           51        TermPwr  ³

  ³ TermPwr     18           35³ 36           52        TermPwr  ³

  ³ Reserved    19           37³ 38           53        Reserved ³

  ³ Ground      20           39³ 40           54        Ground   ³

  ³ Ground      21           41³ 42           55        -ATN     ³

  ³ Ground      22           43³ 44           56        Ground   ³

  ³ Ground      23           45³ 46           57        -BSY     ³

  ³ Ground      24           47³ 48           58        -ACK     ³

  ³ Ground      25           49³ 50           59        -RST     ³

  ³ Ground      26           51³ 52           60        -MSG     ³

  ³ Ground      27           53³ 54           61        -SEL     ³

  ³ Ground      28           55³ 56           62        -C/D     ³

  ³ Ground      29           57³ 58           63        -REQ     ³

  ³ Ground      30           59³ 60           64        -I/O     ³

  ³ Ground      31           61³ 62           65        -DB8     ³

  ³ Ground      32           63³ 64           66        -DB9     ³

  ³ Ground      33           65³ 66           67        -DB10    ³

  ³ Ground      34           67³ 68           68        -DB11    ³

  ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

ACK (Acknowledge): A signal driven by an Initiator to indicate an

acknowledgement for a REQ/ACK data transfer handshake.

ATN (Attention): A signal driven by an Initiator to indicate the

attention condition.

BSY (Busy): An "or-tied" signal which indicates that the bus is in

use.

C/D (Control/Data): A signal driven by a Target. It indicates whether

control or data information is on the data bus. True indicates

Control.

DB(7-0) (Data Bus): Contains the data that is sent from one device to

the other. Driven by either device, as determined by the state of the

I/O signal.

DB(P) (Data Bus Parity): Contains the parity bit for the data that is

sent on DB(7-0) from one device to the other during an information

transfer.

I/O (Input/Output): A signal driven by a Target which controls the

direction of data flow in the data bus, with respect to an Initiator.

True indicates input to the Initiator.

MSG (Message): A signal driven by a Target during the message phase.

REQ (Request): A signal driven by a Target to indicate a request for a

REQ/ACK data transfer handshake.

RST (Reset): An "or-tied" signal which indicates the reset condition.

SEL (Select): A signal used by an Initiator to select a Target or by a

Target to reselect an Intiator.


SCSI Wide SCA
SCSI - Wide Single Connector Attachment

Typical 80 pin I/O and DC Power Wall/bracket Connection

                     ³  Female

    J1          /ÄÄÄÄ³ÄÄÄÄÄÄÄÄÄÄÄÄÄ80\      TOP (HDA)

     ÍÍÍÍÍÍÍÍÍÍ/ ×××××××××××××××××××× \ÍÍÍÍÍÍÍÍÍÍ

              (\Ä1ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ40/)    BOTTOM

  80-pin SCSI Wide, Single Ended, Single Connector Attachment SCA

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  ³            Connector     Cable           Connector           ³

  ³ Signal     CONTACT       CONDUCTOR       CONTACT    Signal   ³

  ³ Name       Number        Number          Number     Name     ³

  ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ

  ³ +12V        1            1 ³ 2            41        12V GND  ³

  ³ +12V        2            3 ³ 4            42        12V GND  ³

  ³ +12V        3            5 ³ 6            43        12V GND  ³

  ³ +12V        4            7 ³ 8            44        12V GND  ³

  ³ NC          5            9 ³ 10           45        NC       ³

  ³ NC          6            11³ 12           46        GND      ³

  ³ -D11        7            13³ 14           47        GND      ³

  ³ -D10        8            15³ 16           48        GND      ³

  ³ -D9         9            17³ 18           49        GND      ³

  ³ -D8         10           19³ 20           50        GND      ³

  ³ -I/O        11           21³ 22           51        GND      ³

  ³ -REQ        12           23³ 24           52        GND      ³

  ³ -C/D        13           25³ 26           53        GND      ³

  ³ -SEL        14           27³ 28           54        GND      ³

  ³ -MSG        15           29³ 30           55        GND      ³

  ³ -RST        16           31³ 32           56        GND      ³

  ³ -ACK        17           33³ 34           57        GND      ³

  ³ -BSY        18           35³ 36           58        GND      ³

  ³ -ATN        19           37³ 38           59        GND      ³

  ³ -DBP        20           39³ 40           60        GND      ³

  ³ -DB7        21           41³ 42           61        GND      ³

  ³ -DB6        22           43³ 44           62        GND      ³

  ³ -DB5        23           45³ 46           63        GND      ³

  ³ -DB4        24           47³ 48           64        GND      ³

  ³ -DB3        25           49³ 50           65        GND      ³

  ³ -DB2        26           51³ 52           66        GND      ³

  ³ -DB1        27           53³ 54           67        GND      ³

  ³ -DB0        28           55³ 56           68        GND      ³

  ³ -DP1        29           57³ 58           69        GND      ³

  ³ -D15        30           59³ 60           70        GND      ³

  ³ -D14        31           61³ 62           71        GND      ³

  ³ -D13        32           63³ 64           72        GND      ³

  ³ -D12        33           65³ 66           73        GND      ³

  ³ +5V         34           67³ 68           74        5V GND   ³

  ³ +5V         35           69³ 70           75        5V GND   ³

  ³ +5V         36           71³ 72           76        5V GND   ³

  ³ NC          37           73³ 74           77        LEDC     ³

  ³ MTRON       38           75³ 76           78        DLYDST   ³

  ³ SCSIA0      39           77³ 78           79        SCSIA1   ³

  ³ SCSIA2      40           79³ 80           80        SCSIA3   ³

  ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ


 	ATA (IDE) Interface

=================================================================

ATA (IDE) Interface

40-pin Cable

-----------------------------------------------------------------

ATA INTERFACE SIGNAL PIN ASSIGNMENTS

   PIN       NAME   I/O                  DESCRIPTION

_________________________________________________________________________

   01       /Host    O    (From Host, Active Low) Reset signal from

            Reset        the host.

   02      Ground                     - - - -

 03-18     - - -    I/O     Host data 0-15 to/from host. 16-bit tris-

                         tate, bidirectional data bus between host

                         and drive.  The lower 8-bits of host data

                         (0-7) are used for register and ECC access.

                         All 16-bits are used for data transfers.

   03   Host Data 7  I/O

   04   Host Data 8   "

   05   Host Data 6   "

   06   Host Data 9   "

   07   Host Data 5   "

   08   Host Data 10  "

   09   Host Data 4   "

   10   Host Data 11  "

   11   Host Data 3   "

   12   Host Data 12  "

   13   Host Data 2   "

   14   Host Data 13  "

   15   Host Data 1   "

   16   Host Data 14  "

   17   Host Data 0   "

   18   Host Data 15  "

   19      Ground                    - - - -

   20       Key          An unused pin, which is clipped off at the

                         drive to prevent incorrect cable attach-

                         ment.

   21       DMARQ        DMA Request (optional)

   22      Ground                    - - - -

   23      /HIOW     O    (From Host, Active Low) Host I/O write

                         strobe. Edge clocks data from the host data

                         bus to I/O register.

  24       Ground                    - - - -

  25       /HIOR     O    (From Host, Active Low) Host I/O read

                         strobe. Trailing edge clocks data from host

                         data bus to I/O register.

  26       Ground                    - - - -

  27        IORDY        I/O Channel Ready (optional); a tristate

                         signal

  28    SPSYNC:CSEL      Spindle Synch or Cable Select (optional);

                         Spindle synch is an interdrive clock signal

                         sent from the master drive to the slave drive

                         to allow the slave to synchronize its spindle

                         motor to the master drive's spindle motor.

                         Cable Select is used to differentiate master

                         from slave in a two-drive system.

  28      Host ALE       (From Host,Active High) Host address latch

                         enable. Used to qualify host address lines.

                         Host addresses are latched on the trailing

                         edge of Host ALE. The drive does not use

                         this signal.

  29        DMACK        DMA Acknowledge

  30       Ground                    - - - -

  31       IRQ14     I    (To Host, Tristate, Active High) Interrupt

                         request from drive to host.  The host may

                         enable/disable the interrupt by clearing/

                         setting the /IEN bit of the Digital Output

                         register of the task file.  The signal is

                         in a high impedance state when the drive is

                         not selected or when the /IEN bit of the

                         Digital Output register is set.  The signal

                         is cleared when host performs a status read

                         from drive.

  32       /HOST     I    (To Host, Tristate, Active Low) When active

           I/O16(AT)     it indicates to host that the 16-bit Data

                         register is addressed and the drive is

                         ready to send/receive a 16-bit word.

  33        Host     I    (From Host, Active High) Host I/O address

           ADDR1         line 1.

  34      /PDIAG(16)     (Active Low) Passed diagnostics.  Used by

                         Slave to signal to Master drive that Slave

                         has passed its internal diagnostics.  See

                         note 3.

  35       Host      O    (From Host, Active Low) Host I/O address

          ADDR0          line 0.

  36       Host      O    (From Host, Active High) Host I/O address

          ADDR2          line 2.

  37      /HOST      O    (From Host, Active Low) Host I/O chip

           CS0           select decoded from host address lines.

                         When active, one of the registers in the

                         range 01F0HEX through 01F7HEX is selected.

  38      /HOST      O    (From Host, Active Low) Host I/O chip

           CS1           select decoded from host address lines.

                         When active, one of the registers in the

                         range 03F0HEX through 0347HEX is selected.

  39      /DASP          (To Host, Active Low) Dual purpose pin.

         SLV/ACT         When drive is Slave (SLV), this pin is used

                         during a Diagnostic command to signal to

                         the Master that a Slave is present.  Drive

                         Activity to host: It is active when the

                         drive is executing a command.  May be used

                         by host drive an activity LED.

  40      Ground                     - - - -

  Small 2.25" form factor drives do not use the typical four wire

  power supply connector.  These drives get power via the ribbon cable

  which has four additional lines.

  41     Power          +5v (logic)

  42     Power          +5v (motor)

  43     Ground         Ground for power pins

  44     Reserved                   - - - -

  Notes:

  1. Signal beginning with (/) is active low.

  2. I indicates to the host, O indicates from the host.

     Reserved and Ground pins do not have directions.

  3. /PDIAG and /DASP are used for communication between

     Master and Slave.


Fibre Channel Interface
 	Fibre Channel - Arbitrated Loop (FC-SCA)

       40 pin I/O and DC Power Wall/bracket Connection

                     ³  Female

    J1          /ÄÄÄÄ³ÄÄÄÄÄÄÄÄÄ\      TOP (HDA)

     ÍÍÍÍÍÍÍÍÍÍ/ ×××××××××××××× \ÍÍÍÍÍÍÍÍÍÍ

              (\Ä1ÄÄÄÄÄÄÄÄÄÄÄÄ20/)    BOTTOM

FC-SCA 40-pin Single Connector Attachment SCA assignments

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³Connector ³Signal Name       ºConnector ³Signal Name      ³

ÃÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ×ÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ´

³    1     ³-EN bypass Port A º    21    ³ 12 Volts Charge ³

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³    2     ³ 12 Volts         º    22    ³ Ground          ³

ÃÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ×ÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ´

³    3     ³ 12 Volts         º    23    ³ Ground          ³

ÃÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ×ÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ´

³    4     ³ 12 Volts         º    24    ³ +Port A_in      ³

ÃÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ×ÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ´

³    5     ³ Reserved NC      º    25    ³ -Port A_in      ³

ÃÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ×ÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ´

³    6     ³ Ground           º    26    ³ Ground          ³

ÃÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ×ÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ´

³    7     ³ Active LED Out   º    27    ³ +Port B_in      ³

ÃÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ×ÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ´

³    8     ³ Reserved         º    28    ³ -Port B_in      ³

ÃÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ×ÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ´

³    9     ³ Start_1          º    29    ³ Ground          ³

ÃÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ×ÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ´

³   10     ³ Start_2          º    30    ³ +Port A_out     ³

ÃÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ×ÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ´

³   11     ³-EN bypass Port B º    31    ³ -Port A_out     ³

ÃÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ×ÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ´

³   12     ³ SEL_6            º    32    ³ Ground          ³

ÃÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ×ÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ´

³   13     ³ SEL_5            º    33    ³ +Port B_out     ³

ÃÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ×ÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ´

³   14     ³ SEL_4            º    34    ³ -Port B_out     ³

ÃÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ×ÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ´

³   15     ³ SEL_3            º    35    ³ Ground          ³

ÃÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ×ÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ´

³   16     ³ Fault LED out    º    36    ³ SEL_2           ³

ÃÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ×ÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ´

³   17     ³ Reserved NC      º    37    ³ SEL_1           ³

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³   18     ³ Reserved NC      º    38    ³ SEL_0           ³

ÃÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ×ÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ´

³   19     ³ 5 Volts          º    39    ³ Reserved NC     ³

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³   20     ³ 5 Volts          º    40    ³ 5 Volts Charge  ³

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 	XT Interface

=============================

XT Interface

(40-pin cable)

-----------------------------

              1.0 XT HOST/DRIVE INTERFACE PIN ASSIGNMENTS

   PIN        SIGNAL      DESCRIPTION

__________________________________________________________________

    1           RES       (From Host,Active High) Bus Reset signal

 3,5,7,9     DATA BUS     Host data to/from host.8-bit tristate,bi-

  11,13                   directional data bus between host and drive.

  15,17                   Used for transferring Status, Data and

                          Control information.

   19           GND       Ground

   20           Key       An unused pin, which is clipped off at the

                          drive to prevent incorrect cable attachment.

   21           AEN       (From Host, Active High) Host address

                          enable, which is asserted during a DMA

                          cycle to disable the decoding of I/O port

                          addresses.

   23          /IOW       (From Host, Active Low) Host I/O write

                          signal for writing data to an I/O port

                          address.

   25          /IOR       (From Host, Active Low) Host I/O read

                          signal for reading data from an I/O port

                          address.

   27          /DACK      (From Host, Active Low) DMA acknowledge

                          signal asserted in response to the DMA

                          Request signal. This signal enables DMA

                          data transfer when either /IOR or /IOW

                          signals are active.

   29           DRQ       (To Host, Active High) DMA Request as-

                          serted by the drive to initiate a DMA

                          transfer.

   31           IRQ       (To Host, Active High) Interupt Request

                          asserted by the drive to cause an interrupt

                          to the host.

 33,35        SA1,SA0     (From Host, Active High) Host I/O address

                          lines 0 and 1 for selecting the drive's

                          I/O ports.

   37           /CS       (From Host, Active Low) Card Select signal

                          asserted by the host to address the drive's

                          I/O ports.

   39        /ACTIVE      (To Host, Active Low) Drive Activity signal

                          asserted by the drive when it is processing

                          a command.  Can be used to drive an external

                          LED indicator.

NOTE:  All other even-numbered pins are ground.


Controllers and Host Adapters
Controllers and Host Adapter Installation Guides

Seagate Controller Installation Guides

  ST01      8-bit SCSI Host Adapter (8K ROM)	---> Cover

  ST01      8-bit SCSI Host Adapter (16K ROM)

  ST02      8-bit SCSI Host Adapter (16K ROM) w/floppy

  ST01/02   SCSI Host Adapter with v3.3 BIOS

  ST05X     8-bit XT Bus Host Adaptor	---> Cover

  ST07A     16-bit AT Bus Host Adapter	---> Cover

  ST08A     16-bit AT Bus Host Adapter w/floppy

  ST11M (MFM)/ ST11R (RLL)  8-bit Controller	---> Cover

  ST21M (MFM)/ ST21R (RLL)  16-bit Controller	---> Cover

  ST22M (MFM)/ ST22R (RLL)  16-bit Controller w/floppy


ST01/02 Cover
st01cover

____________________________________________________ST01, ST02

_____________________________________________SCSI Host Adapter

____________________________________________Installation Guide

______________________________________________________________

______________________________________________________________

______________________________________________________________

______________________________________________________Seagate


ST01/02 Copyright
st01copyright

          Copyright Notice:

          Seagate, Seagate Technology and the Seagate logo are

          registered trademarks of Seagate Technology, Inc.

          @Copyright 1989 Seagate Technology, Inc.

          P.O. Box 66360, Scotts Valley, CA  95067-0360, USA

          Telephone:  408/438-6550

          Publication Number:  36069-001, Rev. E

Seagate reserves the right to change, without notice, product

offerings or specifications. This publication, and all material

contained herein, are copyrighted with all rights reserved.

Seagate Technology, Inc., grants the right to make unlimited,

unaltered copies of this document provided no charge is made

beyond the cost of copying.

IBM, PC-DOS, PC AT and PS/2 are registered trademarks of

International Business Machines Corporation. PC XT is a trademark

of International Business Machines Corporation.

MS-DOS is a registered trademark of Microsoft Corporation.

Disk Manager is a registered trademark of Ontrack Computer

Systems, Inc.


ST01/02 pg 1
st01pg1

                                                              1

Introduction:

This handbook may be used for ST01/02 Host Adapter installation

or with Seagate's SCSI Paired Program. Paired Program means that

the drive and Host Adapter/Controller are matched to optimize

system throughput. And, installation software is already loaded

on the drive.

Seagate SCSI drives are recognized by an "N" after the drive

model number, e.g., ST1096N.

The ST01 and ST02 Host Adapters provide an 8-bit SCSI interface

for the IBM PC XT AT (and all 100% compatible systems) and up to

seven SCSI devices. Installation of more than two hard disc

drives requires device driver software, which is not provided by

Seagate.

The ST02 additionally supports up to two 3.5-inch or 5.25-inch

floppy diskette drives.

Seagate SCSI Host Adapters require only a single bus connector

and may be installed in a standard IBM PC short or long slot.


ST01/02 pg 2
st01pg2

                                                              2

Before You Begin...

This guide may be used for ST01/02 SCSI Host Adapter installation; both

Paired and non-Paired applications. In either application,

ST01/ST02 setup is identical.

All Paired Program drives are shipped already formatted with a

small DOS partition. A program to install the drive, called

INSTALLR is contained in that partition. You must supply the DOS

system. Seagate Paired Program drives are easily recognized by a

"PR" label on the top cover.

Paired Program drives with formatted capacities greater than 32

megabytes are shipped with partitioning software, referred to as

Disk Manager.

Before Beginning The Installation: Inspect the drive, Host

Adapter, cables, mounting hardware and accessories, documentation

and packaging. If any item is incorrect, missing or appears

damaged, contract your Distributor/Dealer.

Shipping: Improper handling during transit/shipping accounts for

many "installation" problems. When transporting or shipping a

drive, controller or system, please ensure that they are

correctly packed in the original container and shipped via an

approved carrier.

Repair centers may refuse receipt of components improperly

packaged or obviously damaged in transit. Consult your

Distributor/Dealer for approved packing materials and carriers.

Care and Handling: Do not handle a drive/Host Adapter without

observing static-discharge precautions. A grounded wrist-strap is

preferred; if unavailable, ground yourself frequently by touching

the metal chassis of the system before handling any components.

Do not unpack the drive/Host Adapter until you are ready to

complete the installation.

Seagate disc drives do not require any preventive maintenance.

The head/disc assembly is sealed and does not contain any user

serviceable components. Do not tamper with the sealed top cover;

doing so will void your warranty.


ST01/02 pg 3
st01pg3

                                                               3

I.  SCSI Drive and Host Adapter Compatibility

The ST01/ST02 Host Adapters support Seagate SCSI interface hard

drives. Early versions of the ST01 have an 8K ROM and no

auxiliary drive power connector. The 16K version of the ST01 has

an auxiliary drive power connector and is designated as ROM

Version 2.0 or higher.

The ST02 supports up to two 3.5-inch or 5.25-inch floppy diskette

drives.

Table 1:  ST02 Diskette Support

   -------------------------------------------------------------

   |    Diskette    |    Capacity     |     Transfer Rate      |

   -------------------------------------------------------------

   |    5.25-inch   |    360 KBytes   |     250 Kbits/sec      |

   -------------------------------------------------------------

   |    5.25-inch   |    1.2 MBytes   |   300/500 Kbits/sec    |

   -------------------------------------------------------------

   |    3.5-inch    |    720 KBytes   |     250 Kbits/sec      |

   -------------------------------------------------------------

   |    3.5-inch    |   1.44 MBytes   |   300/500 Kbits/sec    |

   -------------------------------------------------------------

Diskette support in IBM PC-compatible systems depends upon the

operating system used and the BIOS installed on the system board.

The user may have to upgrade either the BIOS or operating system

in order to obtain the desired diskette support.

Table 2 outlines the operating system requirements for the

various diskette drive types.


ST01/02 pg 4
st01pg4

                                                               4

Table 2:  PC/MS-DOS Support for Diskette Drives

  -------------------------------------------------------------

  |  DOS Version  | 360 KByte| 1.2 MByte| 720 KByte|1.44 MByte|

  -------------------------------------------------------------

  | PC/MS-DOS 2.1 |    X     |          |          |          |

  -------------------------------------------------------------

  | PC/MS-DOS 3.0 |    X     |    X     |          |          |

  -------------------------------------------------------------

  | PC/MS-DOS 3.1 |    X     |    X     |          |          |

  -------------------------------------------------------------

  | PC/MS-DOS 3.2 |    X     |    X     |    X     |          |

  -------------------------------------------------------------

  | PC/MS-DOS 3.3 |    X     |    X     |    X     |    X     |

  -------------------------------------------------------------

IBM offers drive support starting at PC-DOS 3.2 for the 720 KByte

diskette and at version 3.3 for the 1.44 MByte drive. The

DRIVER.BIN module is installed via the CONFIG.SYS module at boot

time.

Microsoft offers driver support starting at MS-DOS 3.2 for the

720 KByte drive through use of the DRIVPARM and DRIVER.SYS

programs.

MS-DOS 3.3 supports both the 720 KByte and 1.44 MByte drives

using the DRIVER.SYS program.

The MS-DOS DRIVER.SYS and DRIVPARM modules are installed via the

CONFIG.SYS file at boot time.

In addition to the requirement that the operating system support

a particular diskette drive, the ROM BIOS installed on the system

board must also provide compatibility.

Table 3 indicates the diskette drives supported by the ROM BIOS

installed in the most common IBM systems.

PC compatibles that do not use an original IBM BIOS should

consult the Operations Manual supplied with their system to

determine the diskette drive support offered.


ST01/02 pg 5
st01pg5

                                                              5

Table 3:  IBM ROM BIOS Support for Diskette Drives

  -------------------------------------------------------------

  |   IBM System  | 360 KByte| 1.2 MByte| 720 KByte|1.44 MByte|

  -------------------------------------------------------------

  |   PC, PC XT   |    X     |          |          |          |

  -------------------------------------------------------------

  |   PC XT 286   |    X     |    X     |    X     |          |

  -------------------------------------------------------------

  | PC AT (6 MHz) |    X     |    X     |          |          |

  -------------------------------------------------------------

  | PC AT (8 MHz) |    X     |    X     |    X     |          |

  -------------------------------------------------------------

  | PS/2 Model 30 |    X     |    X     |    X     |          |

   -------------------------------------------------------------

  |  PS/2 Model   |          |          |          |          |

  |   50/60/80    |    X     |    X     |    X     |    X     |

  -------------------------------------------------------------

Note: The ST02 Host Adapter does not contain any ROM BIOS

extensions for diskette drive support.


ST01/02 pg 6
st01pg6

                                                               6

II.  ST01/ST02 and SCSI Drive Configuration

Before attempting any installation read through these

instructions. Verify that the system is powered-down.

1.   Remove the top cover from the system.  Retain the screws.

2. SCSI Address/Parity Jumpers and Resistor Packs:

        Set the SCSI ID jumper on the hard disc drive. The Host

Adapter recognizes devices by their SCSI ID number. If the drive

has parity jumpers, they must remain shorted.

        * If you are installing one drive, the ID number is 0 (no

jumper).

        * A second physical drive must be set as ID number 1.

        * Drive Resistor Termination Packs:

          If you are installing two drives, remove the resistor

          termination packs from the first drive (the drive

          nearest the Host Adapter on the cable).

3. Remove the Host Adapter from the protective covering. Observe

static-discharge precautions and do not touch the board

components or connectors.

4. Host Adapter Configuration Jumpers:

        * Starting BIOS Address, ST01 and ST02:

          C800H is the 16K BIOS address (default). For the 8K

          BIOS, the default address is CA00H. If there is a board

          already installed at the default address in the system,

          use the jumpers to change to another address. Refer to

          Figures 1-3 and Tables 4-5.

        * Zero-Wait-State (0WS), ST01 and ST02:

          A 2-pin jumper is provided to enable the 0WS logic for

          PC ATs and compatibles that implement the 0WS control

          line on the PC bus. The default configuration disables

          the use of this line.


ST01/02 pg 7
st01pg7

                                                              7

          Optimum performance will be achieved, on PC AT

          compatibles that correctly implement this signal, by

          enabling this line. Refer to Figures 1-3 and Table 6.

          Please consult your system manual or contact your

          dealer for more information.

        * Interrupt Selection, ST01 and ST02:

          A 3-pin jumper is provided in order to select

          interrupts. Interrupts should be disabled (by removing

          the jumper) for PC/MS-DOS operating in PC XT AT

          environments. This is the default configuration. Refer

          to Figures 1-3 and Table 7.

        * Diskette Drive Selection, ST02 Only:

          The ST02 supports all four of the standard PC diskette

          drive types. A jumper is provided (JP5) to restrict

          diskette support PC XT functionality; that is, only 360

          KByte and 720 KByte. The default setting (jumper on)

          will support all types. Refer to Figure 3 and Table 8.

        * Register Emulation, ST02 Only:

          Many personal computers that are compatible with the

          IBM PC AT check at boot time to verify that an

          AT-compatible diskette/hard drive controller is

          present. If not, then an XT-compatible diskette

          controller is assumed and only 360 KByte diskette

          drives are supported.

          A jumper is provided to enable emulation of this

          register (01F4H). Refer to Figure 3 and Table 9.

          The default is to enable emulation. In PC and PC XT

          environments, it is not used and may be safely left

          installed. It should be used in PC AT compatible

          systems; removing the jumper may prevent use of 1.2

          MByte and other (non-360 KByte) format diskette drives.

          Emulation should be disabled if the system already has

          a hard disc controller installed.

5. Connect the hard drive (and diskette drive to the ST02) cables

to the Host Adapter. You may find it easier to attach the cables

before you install the Host Adapter in the system. Pin-1 on the

Host Adapter always corresponds to pin-1 at the drive connector.

Note that some cables have a colored stripe to indicate pin-1.


ST01/02 pg 8
st01pg8

                                                               8

6. Install the drive in the left drive-bay, if possible, as the

power supply may obstruct the cable.

7. For ease of installation attach the cable to the drive before

you slide it completely back into position.

8. Connect the drive DC power line.

9. Verify that all connections are correct and replace the system

cover. Go on to Parts IV and V/VI for the required formatting.


ST01/02 pg 8_5
st01pg8_5

Figure 1: ST01 Host Adapter, 8K ROM Version

                                      J2 SCSI Connector

                 ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ³ÄÄÄÄÄÄÄÄÄÄÄÄÄ¿ Ýßßßß

                 ³                            ³          ÚÄÄÅÄÝ

                 ³              ::::::::::::::::::::     ÀøÄÅÄÝ

                 ³       Pin 1 ÄÙ                           ³ Ý

                 ³                                          ³ Ý

                 ³                                          ³ Ý

                 ³                           ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ  W1

                 ³                           ³              ³ Ý BIOS Address

   W3            ³           EF              ³              ³ Ý

Interrupt  ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ øø              ³      ÚÄÄÄÄÄÄÄÄÄÄÄÄ W2

                 ³            øG           AøøB    Hø    ÚÄÄÅÄÝ 0 WS

                 ³                         CøøD    Iø    ÀøÄÅÄÝ

                 ÀÄ¿                                        ³ Ý

                   ÀÄÄÄÄÄÄ¿ Ü Ü Ü Ü Ü Ü Ü Ü Ü Ü Ü Ü Ü ÜÚÄÄÄÄÙ Ý

                          ÀÄßÄßÄßÄßÄßÄßÄßÄßÄßÄßÄßÄßÄßÄßÙ      Ý

                                                              Ý


ST01/02 pg 9
st01pg9

                                                                9

Figure 2: ST01 Host Adapter, 16K ROM Version

                                      J2 SCSI Connector

                     ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ³ÄÄÄÄÄÄÄÄÄÄÄÄÄ¿ Ýßßßß

                     ³   Pin 1 Ä¿             ³          ÚÄÄÅÄÝ

                 ÚÄÄÄÙ          ::::::::::::::::::::     ÀøÄÅÄÝ

   W5            ³    ÚPin 1                                ³ Ý

  LED ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ øøøø                                  ³ Ý

                 ³                                          ³ Ý

   W3            ³           EFG             ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ  W1

Interrupt  ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ øøø             ³              ³ Ý BIOS Address

                 ³                           ³              ³ Ý

                 ³   ððÝð}ÄÄ Aux Drive       ³      ÚÄÄÄÄÄÄÄÄÄÄÄÄ W2

                 ³     J3    DC Power      AøøC    Hø    ÚÄÄÅÄÝ 0 WS

                 ³                         BøøD    Iø    ÀøÄÅÄÝ

                 ÀÄ¿                                        ³ Ý

                   ÀÄÄÄÄÄÄ¿ Ü Ü Ü Ü Ü Ü Ü Ü Ü Ü Ü Ü Ü ÜÚÄÄÄÄÙ Ý

                          ÀÄßÄßÄßÄßÄßÄßÄßÄßÄßÄßÄßÄßÄßÄßÙ      Ý

                                                              Ý

        * Auxiliary Drive Power Connector:

          A 5-pin DC power connector is provided for systems that

          lack DC power cables. It may also be used for

          Drive-on-a-Card installations. Contact your dealer for

          more information.

        * LED Connector:

          A 4-pin header is provided for the drive front bezel

          LED connector used in IBM PC AT and compatible systems.

          Pins 1 and 4 are logic ground. Pins 2 and 3 provide +5

          VDC when the SCSI channel is active.


ST01/02 pg 10
st01pg10

                                                            10

Figure 3: ST02 Host Adapter

            J5 AT Diskette            J2 SCSI Connector

                 /ÄÂÄ³ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ³ÄÄÄÄÄÄÄÄÄÄÄÄÄ¿ Ýßßßß

    J3           ÔÍµ 1ø  Pin 1 Ä¿             ³          ÚÄÄÅÄÝ

    XT Diskette Ä Íµ øø         ::::::::::::::::::::     ÀøÄÅÄÝ

                 ÆÍµ øø      ÚPin 1                         ³ Ý

                 ÆÍµ øø      øøøøÄ J7 LED                   ³ Ý

                 ÆÍµ øø  øP                           HI    ³ Ý

                 ÆÍµ øø  øQ ÄÄ JP6 Register           øøÄÄÄÄÄÄ  JP2

                 \   øø  øR        Emulation                ³ Ý 0 WS

                  ³ JP5 ÄÄ MNO                              ³ Ý

                 / Disketteøøø  EFG              AøøCÄÄÄÄÄÄÄÄÄÄÄÄ JP1

                 ³  Select      øøø              BøøD    ÚÄÄÅÄÝ BIOS Address

  JP3 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ    ððÝð}ÄÄ Aux Drive   ÀøÄÅÄÝ

Interrupt        ÀÄ¿                   J3    DC Power       ³ Ý

                   ÀÄÄÄÄÄÄ¿ Ü Ü Ü Ü Ü Ü Ü Ü Ü Ü Ü Ü Ü ÜÚÄÄÄÄÙ Ý

                          ÀÄßÄßÄßÄßÄßÄßÄßÄßÄßÄßÄßÄßÄßÄßÙ      Ý

                                                              Ý

        * Auxiliary Drive Power Connector:

          A 5-pin DC power connector is provided for systems that

          lack DC power cables. It may also be used for

          Drive-on-a-Card installations. Contact your dealer for

          more information.

        * LED Connector:

          A 4-pin header is provided for the drive front bezel

          LED connector used in IBM PC AT and compatible systems.

          Pins 1 and 4 are logic ground. Pins 2 and 3 provide +5

          VDC when the SCSI channel is active.


ST01/02 pg 16
st01pg16

                                                             16

Table 4:  ST01 8K BIOS Memory Address (W1)

          ----------------------------------------------

          |     Configuration      |      Address      |

          ----------------------------------------------

          |  No jumpers installed  |  CA00H (Default)  |

          ----------------------------------------------

          |    Pins A-B Shorted    |       C800H       |

          ----------------------------------------------

          |    Pins C-D Shorted    |       CE00H       |

          ----------------------------------------------

          |Pins A-B and C-D Shorted|       DE00H       |

          ----------------------------------------------

Note: The 8K BIOS version of the ST01 is easily recognized. It

doesn't have a notch in the upper left corner of the card.


ST01/02 pg 16_5
st01pg16_5

Table 5:  ST01/ST02, 16K BIOS Memory Address (JP1)

          ----------------------------------------------

          |     Configuration      |      Address      |

          ----------------------------------------------

          |  No jumpers installed  |  C800H (Default)  |

          ----------------------------------------------

          |    Pins A-B Shorted    |      Invalid      |

          ----------------------------------------------

          |    Pins C-D Shorted    |       CC00H       |

          ----------------------------------------------

          |Pins A-B and C-D Shorted|       DC00H       |

          ----------------------------------------------


ST01/02 pg 17
st01pg17

                                                            17

Table 6:  Zero-Wait-State Enable, ST01 and ST02 (W2 or JP2)

          ----------------------------------------------

          |     Configuration      |    0WS State      |

          ----------------------------------------------

          |  No jumpers installed  |0WSDisable(Default)|

          ----------------------------------------------

          |    Pins H-I Shorted    |    0WS Enable     |

          ----------------------------------------------


ST01/02 pg 17_1
st01pg17_1

Table 7:  Interrupt Enable, ST01 (W3) and ST02 (JP3)

          ----------------------------------------------

          |     Configuration      |     IRQ State     |

          ----------------------------------------------

          |                        |Interrupts Disabled|

          |  No jumpers installed  |     (Default)     |

          ----------------------------------------------

          |    Pins E-F Shorted    |    IRQ3 Enable    |

          ----------------------------------------------

          |    Pins F-G Shorted    |    IRQ5 Enable    |

          ----------------------------------------------


ST01/02 pg 17_2
st01pg17_2

Table 8:  Diskette Drive Type Selection, ST02 Only (JP5)

    ---------------------------------------------------------

    |     Configuration      |    Diskette Type Selected    |

    ---------------------------------------------------------

    |    Pins M-N Shorted    |      360/720 KByte Only      |

    ---------------------------------------------------------

    |                        |360/720 KByte & 1.2/1.44 MByte|

    |    Pins N-O Shorted    |           (Default)          |

    ---------------------------------------------------------


ST01/02 pg 18
st01pg18

                                                             18

Table 9:  Register 01F4h Emulation, ST02 Only (JP6)

   ---------------------------------------------------------

   |     Configuration      |    Diskette Type Selected    |

  ----------------------------------------------------------

   |                        |  Enabled for PC XT 286 and   |

   |    Pins Q-R Shorted    |        PC AT (Default)       |

   ---------------------------------------------------------

   |    Pins P-Q Shorted    |      Disabled for PC XT      |

   ---------------------------------------------------------

Refer to page 7 for additional information on Regsister 01F4h

emulation.


ST01/02 pg 19
st01pg19

                                                             19

III.  ST02 Diskette Drive Configuration

The ST02 has two 34-pin connectors for diskette drive support. J3

is provided as an edge-connector for use with PC and PC XT

compatible diskette drive cables. J5 is a 34-pin header for use

with PC AT compatible diskette drive cables. Contact your dealer

for cables.

1. PC Setup Jumpers: There are several jumpers located on the

diskette drive that must be correctly set to perform in the PC

environment. Each manufacturer may label these jumpers

differently. Refer to the diskette drive manual supplied with

your system to determine correct jumper position.

2. Diskette Drive Select Jumpers: This header has four positions.

They are labeled DS0-3 or DS1-4 depending on the drive vintage.

For PC applications only, DS1 (older drives) or DS2 (newer

drives) are used because the drive interconnecting cable has

lines switched to accommodate a common jumper setting.

3. Diskette Terminator Jumper: This jumper is used to activate

terminating resistors for 7 of the 11 drive interface input

lines. The lines are defined by drive type and manufacturer. In

PC applications Drive A has the terminating resistor jumper

active. Drive B has no terminating jumper.


ST01/02 pg 20
st01pg20

                                                               20

IV.  Notes Before Formatting the Drive

The installation process will "low-level" format new physical

blocks, create DOS-compatible partitions, root directories and

file allocation tables for the entire drive. The procedure is

identical for IBM XT and AT systems, except where indicated.

All Seagate Paired Program drives are shipped with a small DOS

partition containing INSTALLR.EXE, PARK.COM, and README.1ST (a

printable supplement to this installation guide). README.1ST

contains the latest information for the drive being installed. It

can be accessed by the DOS commands: TYPE, COPY, and PRINT.

        * If your drive has less than 32 formatted MBytes, you

          will need one DOS-bootable diskette that has the boot

          files from the version of DOS that you plan to use on

          your Seagate drive. This diskette should also contain

          the FORMAT program provided with DOS, and sufficient

          space (approximately 5 KBytes) to save the installation

          programs from the hard drive. The diskette must not be

          write-protected.

        * If your drive has more than 32 formatted MBytes, you

          will need two diskettes; one DOS-bootable with the

          version of DOS you plan to use. The second diskette

          must have at least 320 KBytes available to save the

          installation and Disk Manager programs. The diskettes

          must not be write-protected.

        * Important Note for PC AT Installations:

          If you are installing your drive in a PC AT or 100%

          compatible, and a hard drive is not presently attached

          or operational, the hard drive count in CMOS will

          already be set to zero, or no hard drives installed.

          If a standard hard drive is already attached and

          operating, it will be the first drive and the Seagate

          Paired Program Drive will be Drive 2. It is not

          necessary to change the CMOS hard drive count when

          installing Seagate Paired Program drives.


ST01/02 pg 21
st01pg21

                                                              21

Note to Installers and/or second drive installations: DOS assigns

a logical identifier (C, D, E...) to each partition that it

recognizes during the boot load. It assigns these letters to the

first partition on each physical drive in sequential order.

Therefore, if you have a single drive with three partitions, they

will be assigned C, D, and E.

V.  Installation:  Drives Less Than 32 MBytes

IMPORTANT. This Section is for Paired Program installations only.

Read Section IV before formatting. The entire software

installation routine is menu-driven and takes from ten to thirty

minutes, depending on drive size. For specific DOS questions,

refer to the DOS manual supplied with your system.

After the format is completed, the read/write heads will be

parked. At the next power-up, the system will boot from the hard

disc.

Read/Write Head Park Program: A PARK program is pre-loaded on all

Paired Program drives. The ST225N requires use of this program to

park the heads before your drive/system is transported. All other

Seagate SCSI drives automatically park the heads at power-down.

For optimum performance, format the drive installed in your

system in the same orientation in which it will be used.

        1. Software Installation:  START HERE

           Place a DOS-bootable diskette (to boot simply means to

           start the system) in Drive A and switch the power on.

        2. After the boot process is complete, begin the

           installation by typing:

           C:INSTALLR C

           Press: Enter (Return)


ST01/02 pg 22
st01pg22

                                                              22

If the drive and Host Adapter are correctly installed you will

see the following display:

        Seagate Disc Formatting Utility, VX.X

        If you are installing a second drive, type:

        D:INSTALLR D  ENTER

        3. Your screen should look like this:

           A>C:INSTALLR C

           or, A>D:INSTALLR D

After pressing ENTER (Return), you will see a screen and follow

the screen prompts.


ST01/02 pg 23
st01pg23

                                                               23

VI.  Installation:  Drives Greater Than 32 MBytes

IMPORTANT. This Section is for Paired Program installations only.

Read Section IV before formatting. The entire software

installation routine is menu-driven and takes from ten to thirty

minutes, depending on drive size. Help is available by pressing

the F1 key. For specific DOS questions, refer to the DOS manual

supplied with your system.

At the beginning of the installation, you will be instructed

(after the boot) to remove the DOS diskette and insert a blank

formatted diskette to make a backup copy of the Disk Manager

software.

After the format is completed, the read/write heads will be

parked. At the next power-up, the system will boot from the hard

disc.

For optimum performance, format the drive installed in your

system in the same orientation in which it will be used.

        1. Software Installation:  START HERE

           Place a DOS-bootable diskette (to boot simply means to

           start the system) in Drive A and switch the power on.

        2. After the boot process is complete, begin the

           installation by typing:

           A>C:INSTALLR C  ENTER

           If the drive and Host Adapter are correctly installed

           you will see the following display:

           Seagate Disc Formatting Utility, VX.X

           If you are installing a second drive, type:

           A>D:INSTALLR D  ENTER


ST01/02 pg 24
st01pg24

                                                              24

          3. Follow the screen prompts.

If you are installing a drive with Disk Manager software, and you

already have a hard disc in your system, you must copy the

DMDRVR.SYS and CONFIG.SYS files from the Disk Manager diskette to

the existing (first, or boot) drive.

If you already have a CONFIG.SYS file on the boot drive, update

the file to include the following line:

        DEVICE=DMDRVR.BIN

Refer to your DOS manual for instructions on editing the

CONFIG.SYS file.


ST01/02 pg 25
st01pg25

                                                              25

VII.  Troubleshooting Your Installation

If you have a problem getting the initial screen, or later

getting the system to boot:

        * Check the cabling between the Host Adapter and drive.

          Pin-1 on the Adapter always corresponds to Pin-1 at the

          drive connector. Most cables have a contrasting color

          on the cable to indicate Pin-1.

        * Check the power cable to the drive. Can you hear it

          spinning up?

        * Verify correct hard drive SCSI ID selection.

        * Verify correct BIOS address for the Host Adapter. See

          Tables 4-5. If you have more than one board that uses

          BIOS ROM space, each must be configured to a different

          memory address. Addressing multiple boards at the same

          memory location can cause problems of a seemingly

          indeterminate nature.

        * If you experience problems accessing your DOS partition

          after installation, refer to the .REF files provided

          with the Disk Manager software (drives over 32

          formatted MBytes).

For system or DOS help, contact your computer system

manufacturer.

For additional installation help, contact your authorized Seagate

Distributor/Dealer.


ST01/02 v3.3 bios
st02v33

  ST01/ST02 SCSI Host Adapter, 16K ROM Version 3.3

    (Some configurations have a DB25 external SCSI connector on the clamp.)

        J5 LED ÄÄ¿   Pin 1 ÄÄÄÄÄ SCSI Connector

           ÚÄÄÄÄÄ³ÄÄÄÄÄÄÄ³ÄÄÄÄÄÄÄÄÄÄÄÄÄÄ³ÄÄÄÄÄÄÄÄÄÄÄÄÄ¿ Ýßßßß

           ³ 1ø  øøøø1   ::::::::::::::::::::::::  ÚÄÄÅÄÝ  JP8

 Diskette Ä³ øø           ÚÄÄÄÄÄÄ1ÚÄÄÄÄÄÄ1ÚÄÄÄÄÄÄ1 ÀøÄÅÄÝ  Terminator

 (ST02     ³ øø   ø1 JP6  ÀÄÄÄÄÄÄÙÀÄTResÄÙÀÄÄÄÄÄÄÙ ÚÄÄÄÄÄÄ Power

  only)    ³ øø   ø2 Register Emulation      øøÄÄÄÄÙ  ³ Ý

           ³ øø   ø3            ÚÄÄÄÄÄÄÄ¿             ³ Ý  JP1

           ³ øø  ø              ³       ³    ÚÄÄÄÄÄÄÄÄÄÄÄÄ BIOS Address

           ³ øø  ø              ³ Bios  ³    ³        ³ Ý

           ³ øø  JP7            ³ v3.3  ³    ³  123   ³ Ý  JP3

           ³ øø  ³              ³       ³  1øø3 øøøÄÄÄÄÄÄÄ Interrupt

 JP7 ÄÄÄÄÄÄÄÄÄÄÄÄÙ              ³       ³  2øø4    ÚÄÄÅÄÝ

 Floppy    ³                    ÀÄÄÄÄÄÄÄÙ          ³  ³ Ý  JP2

 Disable   ³    ððÝð}ÄÄ Aux Drive          ø       ÀøÄÅÄÝ  Zero Wait

           ³      J4    DC Power           øÄÄÄÄÄÄÄÄÄÄÄÄÄÄ State

           ÀÄÄÄÄÄÄÄÄ¿ Ü Ü Ü Ü Ü Ü Ü Ü Ü Ü Ü Ü Ü ÜÚÄÄÄÄÙ Ý

    More info ...   ÀÄßÄßÄßÄßÄßÄßÄßÄßÄßÄßÄßÄßÄßÄßÙ      Ý

                                                        Ý


ST01/02 v3.3 JP1
st02v33JP1

Jumper Definitions:

        JP1 - Bios Address Selection

      -------------------------------------

      | Pins          | BIOS              |

      | 1-2     3-4   | Address           |

      -------------------------------------

      | Open    Open  | C8000h            |

      -------------------------------------

      | Short   Open  | CA000h (invalid)  |

      -------------------------------------

      | Open    Short | CC000h            |

      -------------------------------------

      | Short   Short | CD000h            |

      -------------------------------------


ST01/02 v3.3 JP2
st02v33JP2

        JP2 - Zero Wait State

      ------------------------

      | Open    =   Disable  |

      | Short   =   Enable   |

      ------------------------


ST01/02 v3.3 JP3
st02v33JP3

        JP3 - Interrupt

      --------------------------------

      | No Jumper    =  Int. Disable |

      | 1-2 Shorted  =  IRQ 3        |

      | 2-3 Shorted  =  IRQ 5        |

      --------------------------------


ST01/02 v3.3 JP6
st02v33JP6

        JP6 - H. D. Emulation Register

      --------------------------------

      | 2-3 Shorted  =  Disable      |

      | 1-2 Shorted  =  Enable       |

      --------------------------------

        (1F2, 1F4  AT System only)


ST01/02 v3.3 JP7
st02v33JP7

        JP7 - Floppy Enable/Disable

      -----------------------------

      | Open     =  Enable        |

      | Shorted  =  Disable       |

      -----------------------------

        (ST-02 only)


ST01/02 v3.3 JP8
st02v33JP8

        JP8 - Terminator Power

      ------------------------

      | Open     =  Disable  |

      | Shorted  =  Enable   |

      ------------------------

        (If enabled, the ST01/02 will supply terminator power

         to remote device)


ST01/02 Addendum
st02v33info

Addendum from the Seagate Tech Support BBS:  The ST01/02 has a newer

board layout that can be identified by the ROM BIOS chip with a

version number 3.3 sticker.

Unlike previous versions of the ST01/02, this release will support

drives with more than 1024 cylinders and the ability to disable the

floppy controller portion on the ST02.  This provides compatibility

with the Swift and Wren families of Seagate disc drives. Please note

that there is no possibility of ROM upgrades to older versions of the

ST01/02 SCSI host adapter.


ST05X Cover
st05cover

                               ST05X XT Interface

-------------------------------------------------

                                     Host Adapter

-------------------------------------------------

                               Installation Guide

=================================================

__________________________________________Seagate


ST05X Copyright
st05copyright

Copyright Notice:

Seagate, Seagate Technology and the Seagate logo are registered

trademarks of Seagate Technology, Inc.

@Copyright 1989 Seagate Technology, Inc.

920 Disc Drive, Scotts Valley, California 95066-4544, USA

Telephone:  408/438-6550

Publication Number:  36121-001, Rev. A

Seagate reserves the right to change, without notice, product

offerings or specifications.

This publication, and all material contained herein, are copyrighted

with all rights reserved. No part of this publication may be copied

without written permission of Seagate Technology, Inc.

PC AT and PC-DOS are registered trademarks of International

Business Machines Corporation. XT is a trademark of International

Business Machines Corporation.

Disk Manager is a registered trademark of Ontrack Computer

Systems, Inc.

MS-DOS is a registered trademark of Microsoft Corporation.


ST05X pg 1
st05pg1

                                                               1

Introduction:

The ST05X Host Adapter is used in conjunction with the Seagate XT

interface drives and an IBM PC/XT (or compatible) computer.

The ST05X is a half-slot board.  It provides a 40-pin XT interface

connector for systems lacking an XT interface drive connector on the

motherboard.  The ST05X supports two drives only.

The ST05X provides address decoding for hard drive I/O and buffering

of signals between the host and the hard drive.  The BIOS address is

jumper-selectable.  Additionally, the ST05X offers the following

features for IBM PS/2 Model 25/30 or Drive-on-a-card applications:

        * Drive Activity LED connector

        * Auxiliary DC Power Connector

        * Standard Mounting Points


ST05X pg 2
st05pg2

                                                               2

1.0 ST05X Configuration

The ST05X requires no special installation software.  The XT interface

drive can be low-level formatted using the ST05X BIOS (DOS Debug

command G=C800:5) or the system BIOS. For additional information,

refer to the drive's Product Manual.

1.1  XT Interface Drive Connectors: J1/J2

J1 and J2 are 40-pin XT interface drive connectors.  Refer to Figure

1.

J1 Connects to Drive 1          320H-323H

J2 Connects to Drive 2          324H-327H

The ST05X supports two XT interface drives.  For additional

information on the XT interface, refer to the Seagate XT interface

manual/


ST05X pg 2_5
st05pg2_5

1.2  BIOS Address Selection: JP1

 ÕÍÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸

 ³           ³           ³  BIOS         ³              ³

 ³  Pins A-B ³  Pins C-D ³  EPROM/ROM    ³  BIOS RAM    ³

 ÆÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ

 ³  Open     ³  Open     ³  C8000-CBF7F  ³  CBF80-CBFFF ³

 ÃÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄ´

 ³  Open     ³  Shorted  ³  D8000-DBF7F  ³  DBF80-DBFFF ³

 ÃÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄ´

 ³  Shorted  ³  Open     ³  D0000-D3F7F  ³  D3F80-D3FFF ³

 ÃÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄ´

 ³  Shorted  ³  Shorted  ³  E0000-E3F7F  ³  E3F80-E3FFF ³

 ÀÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ


ST05X pg 3
st05pg3

                                                                3

Figure 1: ST05X XT Interface Host Adapter

                                            ÚÄ Drive Connectors

                                            ³

           ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ³ÄÄÄÄÄ¿ Ýßßßß

           ³ 1     ::::::::::::::::::::ÄÄJ1Ä´  ÚÄÄÅÄÝ

       ÚÄÄÄÙ øøøø  1                        ³  ÀøÄÅÄÝ

       ³       ³   ::::::::::::::::::::ÄÄJ2ÄÙ     ³ Ý

 LED ÄÄÄÄÄJ3ÄÄÄÙ   1                              ³ Ý

       ³                            Dø øB ÄÄÄJP1ÄÄÄÄÄÄ BIOS Address

       ³                            Cø øA         ³ Ý  Selection

       ³                                          ³ Ý

       ³                                          ³ Ý

       ³                                          ³ Ý

       ³                                       ÚÄÄÅÄÝ

       ³             ððÝð}ÄÄ Aux Drive         ÀøÄÅÄÝ

       ÀÄ¿             J4    DC Power             ³ Ý

         ÀÄÄÄÄÄÄ¿ Ü Ü Ü Ü Ü Ü Ü Ü Ü Ü Ü Ü Ü ÜÚÄÄÄÄÙ Ý

                ÀÄßÄßÄßÄßÄßÄßÄßÄßÄßÄßÄßÄßÄßÄßÙ      Ý

                                                    Ý


ST05X pg 4
st05pg4

                                                                4

1.3 Auxiliary Drive DC Power Connector: J4

J4 is a 6-pin, right-angle header.  J4 may be used to supply DC power

to a hard drive.  This is provided for systems which lack an available

power harness or Drive-on-a-card applications.  Refer to Figure 1.

  ÕÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸

  ³  Pin ³    Signal  ³  Description   ³

  ÆÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ

  ³  1   ³    +12VDC  ³  +12 VDC Power ³

  ÃÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ´

  ³  2   ³    +12VDC  ³  +12 VDC Power ³

  ÃÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ´

  ³  3   ³    +5VDC   ³  +5 VDC Power  ³

  ÃÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ´

  ³  4   ³    Key     ³  Pin Removed   ³

  ÃÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ´

  ³  5   ³    GND     ³  Ground        ³

  ÃÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ´

  ³  6   ³    GND     ³  Ground        ³

  ÀÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ


ST05X pg 4_5
st05pg4_5

1.4  LED Connector: J3

J3 is a 4-pin header.  It provides connection to a drive activity LED.

Refer to Figure 1.

   ÚÄÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄ¿

   ³ Pin 1 or 4 ³   + to LED ³

   ÃÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄ´

   ³ Pin 2 or 3 ³   - to LED ³

   ÀÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÙ


ST07A/08A Cover
st07cover

                                     ST07A, ST08A

-------------------------------------------------

                        AT INTERFACE HOST ADAPTER

-------------------------------------------------

                               INSTALLATION GUIDE

=================================================

----------------------------------------Seagate


ST07A/08A Copyright
st07copyright

Copyright Notice:

Seagate, Seagate Technology and the Seagate logo are registered

trademarks of Seagate Technology, Inc.

@Copyright 1990, Seagate Technology, Inc.

920 Disc Drive

Scotts Valley, CA  95066-4544, USA

408/438-6550

Publication Number:  36118-001, Rev. B

Seagate reserves the right to change, without notice, product

offerings or specifications.

This publication is copyrighted with all rights reserved. No part

of this document may be copied without written permission of

Seagate Technology, Inc.

IBM and PC AT are registered trademarks of International Business

Machines Corporation.


ST07A/08A pg 1
st07pg1

                                                             1

Introduction:

The ST07A and ST08A Host Adapters are used in conjunction with a

Seagate AT interface drive and an IBM PC AT (or compatible)

computer. They are both half-slot boards, which provide a 40-pin

AT interface connector for systems lacking an AT interface drive

connector on the system motherboard.

The ST07A/ST08A support two AT interface drives. They provide

address decoding for hard drive I/O and buffering of signals

between the host and the hard drive.

The ST08A supports up to two floppy diskette drives:

*    5.25-inch, 260 KByte/1.2 MByte

*    3.5-inch, 720 KByte/1.44 MByte

An auxiliary DC power connector and mounting points are provided

on both boards for "Drive-on-a-Card" applications.


ST07A/08A pg 2
st07pg2

                                                             2

Figure 1:  ST07A/ST08A AT Interface Host Adapter

   J2                    ÚÄ Drive-on-a-Card Mounting Point

 Diskette                ³

 Connector     J3 LED    ³      J1 AT Interface

 (ST08A only)  ³     ÚÄÄÄÙ      Hard Disc Connector

 ³  ÚÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿ Ýßßßß

 ³  ³   1      1     ø             ³                    ÚÄÄÅÄÝ

 ³  ³   ::     øøøø             ::::::::::::::::::::    ÀøÄÅÄÝ

 ³  ³   ::                      1                          ³ Ý

 ÀÄÄÅÄÄ ::                           ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄ JP2

    ³   ::                           1                     ³ Ý  Disc/Diskette

    ³   ::                          øø                     ³ Ý  Address

    ³   ::                                                 ³ Ý  Select

    ³   ::  Ú1ÄÄÄÄ JP4 Diskette Controller Enable          ³ Ý

    ³       :                                   ÚÄÄÄÄÄÄÄÄÄÄÅÄÄÄ JP6 I/O

    ³       ððÝð}ÄÄ J4 Aux DC Power to          1       ÚÄÄÅÄÝ  Channel

    ³            1¿    Hard Disc                øø      ÀøÄÅÄÝ  Ready

    ³          øøøÀÄÄÄ¿                                    ³ Ý

    À¿ Ü Ü Ü Ü Ü Ü ÜÚÄÅÄÄ¿ Ü Ü Ü Ü Ü Ü Ü Ü Ü Ü Ü Ü Ü ÜÚÄÄÄÄÙ Ý

     ÀÄßÄßÄßÄßÄßÄßÄßÙ ³  ÀÄßÄßÄßÄßÄßÄßÄßÄßÄßÄßÄßÄßÄßÄßÙ      Ý

                      ÀÄ JP5 Disable Interrupt               Ý


ST07A/08A pg 3
st07pg3

                                                             3

1.0  ST07A/ST08A Interface Connector/User Options

1.1  AT Interface Drive Connector:  J1

J1 is a 40-pin header. J1 provides the AT interface connection to

the hard drive. Maximum cable length: 18 inches (.45 meter).

1.2  Floppy Diskette Connector: J2 (ST08A Only)

J2 is a 34-pin header. J2 provides connection to floppy diskette

drives. Refer to Section 1.6 for supported formats.


ST07A/08A pg 3_5
st07pg3_5

1.3  LED Connector:  J3

J3 is a 4-pin header. J3 provides connection to a drive activity

indicator.

          -----------------------------

          |  Pin 1 or 4  |  + to LED  |

          -----------------------------

          |  Pin 2 or 3  |  - to LED  |

          -----------------------------


ST07A/08A pg 4
st07pg4

                                                              4

1.4  Auxiliary Drive DC Power Connector:  J4

J4 is a 6-pin, right-angle header. J4 may be used to supply DC

power to a hard drive. This is provided for systems which lack an

available power harness or for "Drive-on-a-card" applications.

          -----------------------------------------

          |  Pin  |   Signal   |    Description   |

          =========================================

          |   1   |  + 12 VDC  |  + 12 VDC Power  |

          -----------------------------------------

          |   2   |  + 12 VDC  |  + 12 VDC Power  |

          -----------------------------------------

          |   3   |   + 5 VDC  |   + 5 VDC Power  |

          -----------------------------------------

          |   4   |     Key    |    Pin Removed   |

          -----------------------------------------

          |   5   |     GND    |      Ground      |

          -----------------------------------------

          |   6   |     GND    |      Ground      |

          -----------------------------------------

1.5  Hard Drive I/O Address Selection:  JP2


ST07A/08A pg 4_1
st07pg4_1

JP2 provides address decoding for hard drive I/Os.

 ----------------------------------------------------------

 |  Pin  |       Address Selection   |   Drive Address    |

 ==========================================================

 |  1-2  | Primary Address           |  1F0-1F7, 3F6-3F7  |

 | Open  | Standard Configuration    |                    |

 ----------------------------------------------------------

 |  1-2  | Secondary Address         |  170-177, 376-377  |

 |Shorted|                           |                    |

 ----------------------------------------------------------

                                                                5

1.5.1  Floppy Diskette Drive I/O Address Selection:  JP2

JP2 provides address decoding for the floppy diskette drive I/Os

(ST08A only)

 -----------------------------------------------------------

 |  Pin  |       Address Selection    |   Diskette Drive   |

 |       |                            |      Address       |

 ===========================================================

 |  1-2  | Primary                    |    3F0-3F5, 3F7    |

 | Open  | Standard Configuration     |                    |

 -----------------------------------------------------------

 |  1-2  |          Secondary         |    370-375, 377    |

 |Shorted|                            |                    |

 -----------------------------------------------------------


ST07A/08A pg 5_1
st07pg5_1

1.6  ST08A Controller Enable:  JP4

The ST08A supports up to two floppy diskette drives of the

following formats:

*    5.25-inch, 360 KByte/1.2 MByte

*    3.5-inch, 720 KByte/1.44 MByte

   -----------------------------------------------------

   |       Pin        |   Diskette Controller Status   |

   =====================================================

   | Pins 1-2 Shorted | Controller Enabled             |

   |                  | Standard Configuration         |

   -----------------------------------------------------

   |  Pins 1-2 Open   | Controller Disabled            |

   -----------------------------------------------------


ST07A/08A pg 6
st07pg6

                                                                6

1.7  Disable Interrupt While Busy:  JP5

 -------------------------------------------------------------

 |       Pin        |            Interrupt Status            |

 =============================================================

 | Pins 2-3 Shorted |  The hard drive interrupt is           |

 |                  |  directly connected to the IRQ 14      |

 |                  |  line of the AT bus.                   |

 |                  |                                        |

 |                  |  Standard For All Seagate AT           |

 |                  |  Interface Drives                      |

 ------------------------------------------------------------|

 | Pins 1-2 Shorted |  IRQ14 to the host is cleared when the |

 |                  |  the hard drive goes BUSY. This jumper |

 |                  |  configuration is specially provided   |

 |                  |  for those systems which do not read   |

 |                  |  status following an interrupt.        |

 |-----------------------------------------------------------|


ST07A/08A pg 6_1
st07pg6_1

1.8  I/O Channel Ready:  JP6

 ------------------------------------------------------------

 |       Pin    |            I/O Channel Status             |

 ------------------------------------------------------------

 |   Pins 1-2   |   I/O channel READY from hard drive is    |

 |      Open    |   not connected to the host.              |

 |              |   Standard  Configuration                 |

 ------------------------------------------------------------

 |   Pins 1-2   |  I/O channel READY from the hard drive is |

 |    Shorted   |  connected to the host.                   |

 ------------------------------------------------------------


ST11M/11R Cover
st11cover

                                     ST11M, ST11R

-------------------------------------------------

                       ST412 Interface Controller

-------------------------------------------------

                               Installation Guide

=================================================

__________________________________________Seagate


ST11M/11R Copyright
st11copyright

Copyright Notice:

Seagate, Seagate Technology and the Seagate logo are registered

trademarks of Seagate Technology, Inc. INSTALLR(tm) is a

trademark of Seagate Technology, Inc.

@Copyright 1990 Seagate Technology, Inc.

920 Disc Drive, Scotts Valley, California 95066-4544, USA

Telephone:  408/438-6550

Publication Number:  36095-001, Rev. E

Seagate reserves the right to change, without notice, product

offerings or specifications. This publication, and all material

contained herein, are copyrighted with all rights reserved.

No part of this publication may be copied without written

permission of Seagate Technology, Inc.

PC AT and PC-DOS are registered trademarks of International

Business Machines Corporation. XT is a trademark of International

Business Machines Corporation.

Disk Manager is a registered trademark of Ontrack Computer

Systems, Inc.

MS-DOS is a registered trademark of Microsoft Corporation.


ST11M/11R pg 1
st11pg1

                                                               1

Introduction:

This installation  guide supports the Seagate ST11M MFM and ST11R

RLL Controllers, ROM Version 2.0 or higher.

The ST11M and ST11R are 8-bit ST412 interface controllers

designed for use in PC XT AT systems with DOS-based applications.

Use with other than DOS-based systems is beyond the scope of this

guide. Contact your Distributor/Dealer.

*  The ST11M is designed for use with drives employing MFM data

   encoding.

*  The ST11R is designed for drives using RLL (2,7) data

   encoding. Seagate RLL drives are easily recognized by an "R"

   after the model number, e.g., ST157R. Seagate Technology, Inc.

   assumes no liability for installation of an RLL controller

   with an MFM-certified drive.

*  The ST11M/ST11R have a unique recording format and therefore

   require all attached drives to be installed by one of the

   processes described in this guide before operation.

This publication may be used with Seagate Paired Program drives

or as a controller-only installation guide.

Paired Program drives are shipped with a Seagate controller. They

are recognized by a "PR" label on the drive top cover. Paired

drives are shipped formatted with a small DOS partition

containing the installation program, INSTALLR, which will low-

level format and partition your drive. You must supply the DOS

program. The ST11M/ST11R can recognize whether a drive has the

Paired Program software loaded, or has been previously installed.

Paired Program drives with formatted capacities greater than 32

MBytes have Disk Manager partitioning software loaded. This

utility has been customized by Ontrack for Seagate. Refer to

Section 2.1 for special instructions on formatting Paired Program

drives.


ST11M/11R pg 2
st11pg2

                                                               2

Before You Begin...

Inspect the controller, drive, cables, mounting

hardware/accessories, documentation and packaging. If any item is

incorrect, missing or appears damaged, contact your Distributor

or Dealer immediately.

Handling: Improper handling during transit/shipping accounts for

many "installation" problems. Prior to installation, handle your

drive/controller carefully.

Observe Static-Discharge Precautions: Keep the drive/controller

in their static-shielded bags until you are ready to complete the

installation. Use a grounded wrist-strap at your workstation; if

unavailable, ground yourself frequently by touching the metal

chassis of the system before handling any components. Avoid

static-inducing carpeted areas.

Shipping: When transporting or shipping a drive or controller, a

Seagate-approved container must be used. Keep your original box.

They are easily identified by a red label identifying them as a

"Seagate Approved Package."

Shipping a drive in a non-approved container will void the drive

warranty.

Repair centers may refuse receipt of components improperly

packaged or obviously damaged in transit. Contact your

Distributor to purchase additional boxes. Seagate recommends

shipping by an air-ride carrier experienced in handling computer

equipment.

Maintenance: Seagate disc drives do not require any preventative

maintenance. The head/disk assembly is sealed and does not

contain any user-serviceable components. Tampering with the

factory-seal will void the warranty.


ST11M/11R pg 3
st11pg3

                                                               3

1.0  ST11M/ST11R Controller Installation

Caution: Do not handle a drive or controller without observing

static-discharge precautions. A grounded wrist-strap is

preferred; if unavailable, ground yourself frequently by touching

the metal chassis of the system before handling any components.

Do not unpack the drive/controller until you are ready to

complete the installation.

BEFORE ATTEMPTING ANY INSTALLATION, READ THROUGH ALL STEPS AND

VERIFY THAT THE SYSTEM IS POWERED-DOWN.

During the formatting process, you will be asked to enter some

simple drive specifications. Please refer to Figures 1-2 for

formatted capacity and basic specifications. For non-Seagate

drives, refer to the manufacturer's instructions.

Figure 1:  Seagate MFM Drive Setup - ST11M

  =============================================================

  | Model | Formatted |  R/W  |   Data    |  Sectors  | Auto- |

  |       |   MBytes  | Heads | Cylinders | per Track | Park  |

  =============================================================

  | ST124 |    21.4   |   4   |    615    |     17    |   No  |

  -------------------------------------------------------------

  | ST125 |    21.4   |   4   |    615    |     17    |  Yes  |

  -------------------------------------------------------------

  | ST138 |    32.1   |   6   |    615    |     17    |  Yes  |

  -------------------------------------------------------------

  | ST151 |    42.5   |   5   |    977    |     17    |  Yes  |

  -------------------------------------------------------------

  | ST225 |    21.4   |   4   |    615    |     17    |   No  |

  -------------------------------------------------------------

  | ST251 |    42.8   |   6   |    820    |     17    |  Yes  |

  -------------------------------------------------------------

  | ST252 |    42.8   |   6   |    820    |     17    |  Yes  |

  -------------------------------------------------------------

  |ST4053 |    44.5   |   5   |   1024    |     17    |  Yes  |

  -------------------------------------------------------------

  |ST4096 |    80.2   |   9   |   1024    |     17    |  Yes  |

  -------------------------------------------------------------


ST11M/11R pg 4
st11pg4

                                                               4

Figure 2:  Seagate RLL Drive Setup - ST11R

  =============================================================

  | Model | Formatted |  R/W  |   Data    |  Sectors  | Auto- |

  |       |   MBytes  | Heads | Cylinders | per Track | Park  |

  =============================================================

  | ST137R|    32.7   |   4   |    615    |     26    |   No  |

  -------------------------------------------------------------

  | ST138R|    32.7   |   4   |    615    |     26    |  Yes  |

  -------------------------------------------------------------

  | ST157R|    49.1   |   6   |    615    |     26    |  Yes  |

  -------------------------------------------------------------

  | ST225R|    21.2   |   2   |    667    |     31    |   No  |

  -------------------------------------------------------------

  | ST238R|    32.7   |   4   |    615    |     26    |   No  |

  -------------------------------------------------------------

  | ST250R|    42.9   |   4   |    667    |     31    |   No  |

  -------------------------------------------------------------

  | ST277R|    65.5   |   6   |    820    |     26    |  Yes  |

  -------------------------------------------------------------

  | ST278R|    65.5   |   6   |    820    |     26    |  Yes  |

  -------------------------------------------------------------

  |ST4144R|   122.7   |   9   |   1024    |     26    |  Yes  |

  -------------------------------------------------------------

Data Cylinders: User cylinders are calculated from logical zero,

i.e., 0 to 614 equals 615 cylinders.

Write Precompensation (ST225 Only): For optimum performance,

precompensation is recommended starting on cylinder 300. Enter

the information, when prompted.

Interleave: Use optimum interleave as indicated in installation

routine.

Read/Write Head Parking: A PARK program is preloaded on all

Paired Program drives, PARK.EXE or PARK.COM, which the INSTALLR

software will copy to a diskette during installation. The

following drives require parking before the drive/system is

transported: ST124, ST137R, ST225, ST225R, ST238R, ST250R. All

other Seagate drives feature automatic R/W head parking at power-

down.


ST11M/11R pg 5
st11pg5

                                                               5

1.1  Set the Controller BIOS Address

Controllers and add-in boards are installed in the bus slots on

the computer's motherboard. These slots are recognized by the

computer BIOS address number. Each board installed must be

jumpered for a specific address.

C8000H is the default BIOS address for the ST11M/ST11R. If this

address is already occupied by another board, use the jumpers

provided to change the Seagate controller to another address.

Refer to Figure 3.

When installing an ST11M/ST11R controller with a Seagate

ST01/ST02 SCSI Host Adapter, the controller must be at the lowest

address (C8000H).

When installing the ST11M/ST11R in a system already containing a

hard disc controller, the Seagate controller must be jumpered at

a higher BIOS address than the resident controller. If you are

not sure of the other controller's address, try one of the higher

addresses for the Seagate controller.

Controller physical installation will only involve setting the

BIOS address (Figure 3), attaching the cables and inserting the

controller in a system bus slot. It is often easier to attach the

cables before you install the controller.


ST11M/11R pg 6
st11pg6

                                                               6

Figure 3: ST11M/ST11R ST412 Interface Controller

            J2-Drive 1   J3-Drive 2  Ú J1

           ÚÄÄÄÄÄÄ³ÄÄÄÄÄÄ³ÄÄÄÄÄÄÄÄÄÄÄ³ÄÄÄÄÄÄÄÄÄÄÄÄ¿ Ýßßßß

           ³      ³      ³           ³         ÚÄÄÅÄÝ

       ÚÄÄÄÙ  :::::::::: ³   ::::::::::::::::: ÀøÄÅÄÝ

       ³   ÚÄÄÙ          ³   À Pin 1              ³ Ý

Pin 1 ÄÄÄÄÄ´  ::::::::::ÄÙ                        ³ Ý

       ³   ÀÄÄÙ                                   ³ Ý

       ³                           ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ  W1

       ³                         BøøD             ³ Ý   BIOS Address

       ³                         AøøC             ³ Ý   Selection

       ³                                          ³ Ý

       ³                                       ÚÄÄÅÄÝ

       ³             ððÝð}ÄÄ Aux Drive         ÀøÄÅÄÝ

       ÀÄ¿             J5    DC Power             ³ Ý

         ÀÄÄÄÄÄÄ¿ Ü Ü Ü Ü Ü Ü Ü Ü Ü Ü Ü Ü Ü ÜÚÄÄÄÄÙ Ý

                ÀÄßÄßÄßÄßÄßÄßÄßÄßÄßÄßÄßÄßÄßÄßÙ      Ý

                                                    Ý


ST11M/11R pg 6_1
st11pg6_1

  ===============================================================

  |  Jumper Setting at W1  |     BIOS Address    |  Port Address |

  ===============================================================

  |  No Jumpers Installed  |   C8000H (Default)  |  320H - 323H  |

  ----------------------------------------------------------------

  |    Pins A-B Shorted    |        D0000H       |  324H - 327H  |

  ----------------------------------------------------------------

  |    Pins C-D Shorted    |        D8000H       |  328H - 32BH  |

  ----------------------------------------------------------------

  |  Pins A-B and C-D      |E0000H (Do not use on|  32CH - 32FH  |

  |    Shorted             | an AT-class system) |               |

  ----------------------------------------------------------------


ST11M/11R pg 7
st11pg7

                                                               7

1.2  Controller Physical Installation

CAUTION:  VERIFY THAT THE POWER IS OFF.

1. Remove the System Cover (Refer to your system manual).

   Access to the screws is usually at the back of the system.

   Save the screws. Systems vary, but most require you to slide

   the cover forward for removal.

2. Install the Controller into a System Bus Slot.

   Verify that all connections are correct and replace the system

   cover.

3. Optional Drive Power Connector on the ST11M/ST11R.

   Normally, drive power is supplied via a power harness from the

   system power supply directly to the drive's J3 DC power

   connector. The J5 connector on the ST11M/ST11R can be used to

   provide disc drive power in system lacking an extra power

   harness or for "Drive-on-a-Card" applications. See connector

   J5, Figure 3.

   A cable splitter, often called a Y-cable may be used to tap

   off the diskette drive power cable. They are available from

   most Distributors/Dealers.


ST11M/11R pg 9
st11pg9

                                                               9

2.0  Preparing to Format Your Drive

Please read this section before proceeding to the formatting

instructions. Be sure to back up any drive containing data.

Formatting at any level may result in partial or complete loss of

data. Seagate Technology, Inc. assumes no liability for lost

data.

*  Always use the same version of DOS throughout the entire

   process. On two-drive systems: Always use the same version of

   DOS on both drives. When adding a second drive, it is

   sometimes necessary to reformat the first drive.

*  DOS assigns a logical identifier (C, D, E...) to each

   partition that it recognizes during the boot load. It assigns

   these letters to the first partition on each physical drive in

   sequential order (e.g., C to Drive 1, D to Drive 2).

   Subsequent letters are assigned to the remaining partitions on

   Drive 1, followed by Drive 2. See table below for typical

   examples:

       =======================================

         Partition  |  Drive 1   |   Drive 2

       =======================================

            1             C             D

            2             E             H

            3             F             I

            4             G             J

*  For optimum performance, format the drive installed in your

   system in the same orientation in which it will be used.

2.1  Paired Program Drive Formatting

Paired Program drives are shipped with a small DOS partition

containing Installation software and a README file which has the

latest information for the drive being installed. See Section

3.0.


ST11M/11R pg 10
st11pg10

                                                              10

2.2  Non-Paired Drive Formatting

Seagate non-paired drive do not have installation software or

recognizable format. These drives may be installed by following

the procedures in Section 4.0.

2.3  Paired Drives with Less than 32 Formatted MBytes

You will need one DOS-bootable diskette that has the boot files

from the version of DOS that you plan to sue on your Seagate

drive. This diskette should also contain the FORMAT program

provided with DOS, and sufficient space (approximately 50 KBytes)

to save the installation programs from eh hard drive. The

diskette must not be write-protected.

2.4  Paired Drive with Greater than 32 Formatted MBytes

You will need two diskettes; one DOS-bootable with the version of

DOS you plan to use. The second diskette must have at least 360

KBytes available to save the installation and Disk Manager

programs. The diskettes must not be write-protected.

2.5  CMOS Configuration

If you are installing your drive in a PC AT and a hard drive is

not presently attached or operational, the hard drive count in

CMOS will already be set to zero.

If a standard hard drive is already attached and operating, it

will be the first drive and the Seagate Paired Program drive will

be Drive 2. It is not necessary to change the CMOS hard drive

count when installing with ST11M/ST11R controllers.

2.6  Read/Write Head Parking

A PARK program is preloaded on all Paired Program drives. The

following drives require this program before the drive/system is

transported: ST124, ST137R, ST225, ST225R, ST238R, ST250R. All

other Seagate drives feature automatic head parking at power-

down.


ST11M/11R pg 11
st11pg11

                                                              11

3.0  Paired Program Installations

Read Sections 1-2 before beginning any formatting. The entire

software installation routine is menu-driven and takes from ten

to thirty minutes, depending on drive size. For specific DOS

questions, refer to the DOS manual supplied with your system.

After the format is completed, the read/write heads will be

parked. At the next power-up, the system will boot from the hard

disc.

3.1  Paired Program Formatting

Place a DOS-bootable diskette (to boot simply means to start the

system) in Drive A and switch the power on a follow the

instructions displayed on the screen. If you are installing a

second drive, type:

          D:INSTALLR D

If you are installing a drive with Disk Manager software and you

already have a hard disc in your system, you must copy the

DMDRVR.BIN and CONFIG.SYS files from the Disk Manager diskette to

the existing (first, or boot) drive.

If you already have a CONFIG.SYS file on the boot drive, update

the file to include the following line: DEVICE=DMDRVR.BIN

Refer to your DOS manual for instructions on editing the

CONFIG.SYS file. Disk Manager also provides help files which you

may print using the standard DOS print commands.


ST11M/11R pg 12
st11pg12

                                                               12

4.0  Non-Paired Drive Formatting

Use this procedure for non-paired drives or when reformatting a

paired drive whose installation software files were lost or not

copied before formatting.

Be sure to back up any drive containing data. Formatting at any

level may result in partial or complete loss of data. Seagate

Technology, Inc. assumes no liability for lost data.

If you use the DOS DEBUG utility to low-level/primary format the

drive, you must answer "YES" to the question, "Do you want to

enter the defect map which is supplied on your hard disc drive

cover?". Proceed with entering all defects from the defect map.

Important Note: If you use the ST11M/ST11R controller, BIOS

Version 2.0, with a Seagate Paired Program drive, but do not use

the Seagate installation software (INSTALLR), you must manually

enter the Manufacturer's Defect Map (attached to the drive top

cover) during the low-level/primary formatting operation.

Always use the same version of DOS throughout the entire process.

On two-drive systems: Always use the same version of DOS on both

drives. When adding a second drive, it is sometimes necessary to

reformat the first drive.

4.1  Low-level Physical Format Using BIOS Facility

When using DEBUG to format in an AT system, the CMOS or system

setup should be set to 0 (i.e., no hard drive installed).

1. Boot the system from the DOS system diskette.

2. At the A> prompt, insert the DEBUG diskette and type:

               DEBUG <enter>


ST11M/11R pg 13
st11pg13

                                                               13

3. To access the controller's format routine, at the "-" prompt

   type:

   G=XXXX:5 <enter> (Where XXXX is the correct address; refer to

   Figure 3.)

   Note: Seagate controllers will step you through the process.

   Refer to the drive charts Figures 1-2 for correct drive

   parameters.

   On drives over 32 formatted MBytes, Disk Manager will

   automatically partition and high-level format the drive.

   Use FDISK and FORMAT on your DOS diskette for drives less than

   32 formatted MBytes.

5.0  Troubleshooting Your Installation

If you have a problem getting the initial screen, or later

getting the system to boot:

*  Check the cabling between the controller and drive. Pin-1 on

   the controller always corresponds to Pin-1 at the drive

   connector. Most cables have a contrasting color on the cable

   to indicate Pin-1.

*  Check the power cable to the drive. Can you heard the drive

   spinning up?

*  Verify correct Drive Select jumper.

*  Verify correct BIOS address for the controller. If you have

   more than one board that uses BIOS ROM space, each must be

   configured to a different memory address. Addressing multiple

   boards at the same memory location can cause problems of a

   seemingly indeterminate nature.

*  Low-level formatting takes too long or never completes

   Format again. Make sure correct drive parameters were entered

   and cable connections are correct.

*  FDISK or Partitioning Error Messages: "Error reading fixed

   disc," or "No fixed disc present"


ST11M/11R pg 14
st11pg14

                                                               14

   Check correct drive parameters entered. Turn the system off

   and power-up again. Rerun FDISK.

*  High-level Format Error Message:  "Invalid drive specification"

   Run FDISK again to make sure the DOS partition is active.

   Check drive parameters and low-level format again.

   In AT systems, check that no drive type is entered in the

   system CMOS setup for the drive attached to the ST11M/ST11R.

*  Drive fails recal or test drive ready

   Check installation, cables, and drive select jumper.

*  I/O Errors  when using  Disk Manager:

   "Uncorrectable ECC - I/O Error"

   "Unrecoverable I/O Error"

   If you are formatting a drive in an XT or using the

   ST11M/ST11R controller in an AT, low-level format the drive

   through DEBUG using the controller's BIOS routine.

*  After formatting with Disk Manager, your system does not

   recognize the D, E, F... partitions:

   First, make sure that you boot from the hard drive. If you

   still cannot access these partitions, check that the Disk

   Manager device driver, DMDRVR.BIN is in the root director of

   the C: (boot) drive. Verify that the CONFIG.SYS file contains

   the following line:

             DEVICE=DMDRVR.BIN

If you experience problems accessing your DOS partition after

installation, refer to the help files provided with Disk Manager.

For system or DOS help, contact your computer system

manufacturer. For additional installation help, contact your

authorized Seagate Distributor/Dealer.


ST21/22M/R Cover
st22cover

                                    ST21M, ST21R

-------------------------------------------------

                                    ST22M, ST22R

-------------------------------------------------

                      ST412 Interface Controller

-------------------------------------------------

                              Installation Guide

=================================================

_______________________________________ Seagate


ST21/22M/R Copyright
st22copyright

Copyright Notice

Seagate, Seagate Technology and the Seagate logo are registered

trademarks of Seagate Technology, Inc. INSTALLR is a trademark of

Seagate Technology.

(C)opyright 1990 Seagate Technology Inc.

920 Disc Drive, Scotts Valley, California 95066-4544, USA

Telephone: 408/438-6550

Publication Number: 36127-001, Rev. A

Seagate reserves the right to change, without notice, product

offerings or specifications. This publication, and all material

contained herein, are copyrighted with all rights reserved. No

part of this publication may be copied without written

permission of Seagate Technology, Inc.

PC AT and PC-DOS are registered trademarks of International

Business Machines Corporation. XT is a trademark of International

Business Machines Corporation.

DISK MANAGER and ONTRACK are registered trademarks of ONTRACK

Computer Systems, Inc.


ST21/22M/R pg 1
st22pg1

                                                                1

Introduction

The ST21 and ST22 are 16-bit ST412 interface controllers designed

for use in AT-type systems.

*       The ST21M and ST22M are designed for use with drives

employing MFM data encoding and a 5.0 Mbit/sec. I/O data transfer

rate. Seagate Technology, Inc. assumes no liability for

installation of an MFM controller with an RLL-certified drive.

*       The ST21R and ST22R are designed for drives using RLL

(2,7) data encoding and a 7.5 Mbit/sec. I/O data transfer rate.

Seagate RLL drives are easily recognized by an R after the model

number, e.g., ST157R. Seagate Technology, Inc. assumes no

liability for installation of an RLL controller with an

MFM-certified drive.

*       The ST22M and ST22R have an onboard floppy diskette

controller which supports two diskette drives in the following

formats:

        - 3.5-inch, 720K Byte/1.44M Byte

        - 5.25-inch, 360K Byte/1.2 M Byte

*       The ST21 and ST22 have a unique recording format and

therefore require all attached drives to be installed by one of

the processes described in this guide before operation.

This publication may be used with SEAGATE Paired Program drives

or as a controller-only installation guide.

Paired program drives are shipped with a Seagate controller. They

are recognized by a PR label on the drive top cover. Paired

drives are shipped formatted with a small DOS partition

containing the installation program, INSTALLR, which will

low-level format and partition your drive. You must supply the

DOS program. The ST21/ST22 can recognize whether a drive has a

Paired Program software loaded, or has been previously installed.


ST21/22M/R pg 2
st22pg2

                                                                2

Paired Program drives with formatted capacities greater than 32

MBytes have DISK MANAGER (customized by ONTRACK for Seagate)

partitioning software loaded. Instructions on installing Paired

Program drives begin in Section 3.0.

---------------------------------------

Before You Begin...

Inspect the controller, drive, cables, mounting

hardware/accessories, documentation and packaging. If any item is

incorrect, missing or appears damaged, contact your Distributor

or Dealer immediately.

Handling: Improper handling during transit/shipping accounts for

many "installation" problems. Prior to installation, handle your

drive/controller carefully.

Observe Static-Discharge Precautions: Keep the drive/controller in

their static-shielded bags until you are ready to complete the

installation. Use a grounded wrist-strap at your workstation; if

unavailable, ground yourself frequently by touching the metal

chasis of the system before handling any components. Avoid

static-inducing carpeted areas.

Shipping: When transporting or shipping a drive or controller, a

Seagate-approved container must be used. Keep your original box.

They are easily identified by a red label identifying them as a

Seagate Approved Package.

Shipping the drive in a non-approved container will void the drive

warranty.

Repair centers may refuse receipt of components improperly

packaged or obviously damaged in transit. Contact your

Distributor to purchase additional boxes. Seagate recommends

shipping by an air-ride carrier experienced in handling computer

equipment.

Maintenance: Seagate disc drives do not require any preventative

maintenance. The head/disc assembly is sealed and does not

contain any user-servicable components. Tampering with the

factory-seal will void the warranty.


ST21/22M/R pg 3
st22pg3

                                                                3

1.0  ST21, ST22 Setup and Installation

Caution: Do not handle a drive/controller without observing

static-discharge precautions. A grounded wrist-strap is

preferred; if unavailable, ground yourself frequently by

touching the metal chasis of the system before handling any

components. Do not unpack the drive/controller until you are

ready to complete the installation.

During the formatting process, you will be asked to enter some

simple drive specifications. Refer to Figures 1-2 for basic

specifications. For non-Seagate drives, refer to the

manufacturer's instructions.

Important Note: A Drive Type must be set in the AT system CMOS if

the controller BIOS is disabled.  See Section 2.6.


ST21/22M/R pg 4
st22pg4

                                                                4

Figure 1: Seagate MFM Drive Setup - ST21M/ST22M

Model | Formatted | R/W   | Data | Sectors | R/W Head  | Write

      | MBytes    | Heads | Cyls.| / Track | Auto-Park | Precomp

================================================================

ST124 |   21.4    |   4   | 615  |   17    |   No      | None

ST125 |   21.4    |   4   | 615  |   17    |   Yes     | None

ST138 |   32.1    |   6   | 615  |   17    |   Yes     | None

ST151 |   42.5    |   5   | 977  |   17    |   Yes     | None

ST225 |   21.4    |   4   | 615  |   17    |   No      | Cylinder

      |           |       |      |         |           | 300

ST252 |   42.8    |   6   | 820  |   17    |   Yes     | None

ST251 |   42.8    |   6   | 820  |   17    |   Yes     | None

ST4053|   44.5    |   5   | 1024 |   17    |   Yes     | None

ST4096|   80.2    |   9   | 1024 |   17    |   Yes     | None

ST1100|   83.9    |   9   |*1072 |   17    |   Yes     | None


ST21/22M/R pg 5
st22pg5

                                                                5

Figure 2: Seagate RLL Drive Setup - ST21R/ST22R

Model  | Formatted| R/W   | Data | Sectors | R/W Head  | Write

       | MBytes   | Heads | Cyls.| / Track | Auto-Park | Precomp

================================================================

ST138R |   32.7   |  4    | 615  |   26    |   Yes     |  None

ST157R |   49.1   |  6    | 615  |   26    |   Yes     |  None

ST225R |   21.17  |  2    | 667  |   31    |   No      |  None

ST238R |   32.7   |  4    | 615  |   26    |   No      |  None

ST250R |   42.9   |  4    | 667  |   31    |   No      |  None

ST278R |   65.5   |  6    | 820  |   26    |   Yes     |  None

ST277R |   65.5   |  6    | 820  |   26    |   Yes     |  None

ST4144R|  122.7   |  9    | 1024 |   26    |   Yes     |  None

ST1150R|  128.4   |  9    |*1072 |   26    |   Yes     |  None

Data Cylinders: User cylinders are calculated from logical zero,

i.e., 0 to 614 equal 615 cylinders.

* Note: The ST21/ST22 can address a maximum of 16 R/W heads and

1,024 cylinders.

Interleave: Use 1:1 interleave as indicated in installation

routine.

Read/Write Head Parking: A PARK program is preloaded on all

Paired Program drives, PARK.EXE or PARK.COM, which the INSTALLR

software will copy to a diskette during installation. The

following drives require parking before the drive/system is

transported: ST124, ST225, ST225R, ST238R, ST250R. Refer to

Section 2.7.

If your drive is not Paired, see your Distributor/Dealer for a

read/write head parking program.


ST21/22M/R pg 6
st22pg6

                                                                6

1.1  Controller Setup

1.1.1  Set Controller BIOS and Drive Address: JP1-JP2

Controllers and add-in boards are installed in the bus slots on

the computer's motherboard. These slots are recognized by the

computer BIOS address number. Each board installed must be

jumpered for a specific address.

C8000h-CBFFFh is the default BIOS address for the ST21/ST22. If

this address is already occupied by another board, use the

jumpers provided to change the Seagate controller to another

address.  Refer to Figures 4-5.

When installing the ST21/ST22 in a system already containing a

hard disc controller, The Seagate controller must be jumpered at

a higher BIOS address than the resident controller. See Figures

4-5.


ST21/22M/R pg 6_1
st22pg6_1

Figure 3: Controller BIOS and Port Addresses

   ÚÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

   ³ I/O Port  ³          ³          ³ BIOS Ad-  ³    Hard     ³   Diskette  ³

   ³ Address   ³   JP1    ³   JP2    ³   dress   ³  Drive I/O  ³  Drive I/O  ³

   ³           ³          ³          ³           ³    Ports    ³    Ports    ³

   ÆÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍµ

   ³  Primary  ³ Open     ³ Open     ³ C8000h to ³  1F0-1F7    ³  3F0-3F5    ³

   ³           ³          ³          ³ CBFFFh    ³  3F6-3F7    ³    3F7      ³

   ³           ÃÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄ´

   ³           ³ Open     ³ Shorted  ³ CC000h to ³  1F0-1F7    ³  3F0-3F5    ³

   ³           ³          ³          ³ CFFFFh    ³  3F6-3F7    ³    3F7      ³

   ÃÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄ´

   ³ Secondary ³ Shorted  ³ Open     ³ D8000h to ³  170-177    ³  370-375    ³

   ³           ³          ³          ³ DBFFFh    ³  376-377    ³    377      ³

   ³           ÃÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄ´

   ³           ³ Shorted  ³ Shorted  ³ DC000h to ³  170-177    ³  370-375    ³

   ³           ³          ³          ³ DFFFFh    ³  376-377    ³    377      ³

   ÀÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÙ


ST21/22M/R pg 7
st22pg7

                                                                7

1.1.2  Floppy Diskette Enable/Disable: JP4 (ST22 Only)

The ST22 features an onboard floppy diskette controller. It is

shipped with the controller enabled, to disable remove the jumper

at JP4.

Note: Most systems will not support the secondary floppy diskette

I/O addresses.

1.1.3  BIOS Enable/Disable Jumper: JP3

The ST21 and ST22 are shipped with the BIOS enabled, JP3 open. To

disable the BIOS, attach jumper at JP3.  Refer to Figures 4-5.

1.1.4  Remote LED Connector: J6

The ST21 and ST22 provide for connection to the drive activity

LED found on most AT-type systems. Connect the remote LED cable to

J6.


ST21/22M/R pg 8
st22pg8

                                                                8

Figure 4: ST21M/ST21R - No Floppy Diskette Controller

                       J3            J4             J2

                       To J2 on      To J2 on       To J1 on

                       First Drive   Second Drive   Both Drives

                       (Drive C)     (Drive D)

  ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄ¿ Ýßßßß

  ³       1ÄÄLED           ³        ÚÄÄÄÄÙ       ÚÄÄÄÄÄÄÙ  ÚÄÄÅÄÝ JP2

  ³       øøøøøJ6      ::::::::::   ³  ::::::::::::::::    ÀøÄÅÄÝ BIOS

  ³                    1            ³  1                  ÚÄÄÄÅÄÄ Address

  ³                    ::::::::::ÄÄÄÙ     ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ   ³ Ý

  ³                    1                  ³                   ³ Ý JP3

  ³                                       ³     ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄ BIOSEnable/

  ³                                     1øø     ³             ³ Ý Disable

  ³                                           1øø             ³ Ý

  ³                                     1øø           ÚÄÄÄÄÄÄÄÅÄÄ JP1

  ³                                       ÀÄÄÄÄÄÄÄÄÄÄÄÙ    ÚÄÄÅÄÝ Hard Drive/

  ³                                                        ÀøÄÅÄÝ Diskette I/O

  ³      ððÝð}ÄÄ Aux Drive DC Power J5                        ³ Ý Address Select

  ÀÄÄÄÄÄ¿ Ü Ü Ü Ü Ü Ü ÜÚÄÄÄÄ¿ Ü Ü Ü Ü Ü Ü Ü Ü Ü Ü Ü Ü Ü ÜÚÄÄÄÄÙ Ý

        ÀÄßÄßÄßÄßÄßÄßÄßÙ    ÀÄßÄßÄßÄßÄßÄßÄßÄßÄßÄßÄßÄßÄßÄßÙ      Ý

                                                                Ý


ST21/22M/R pg 9
st22pg9

                                                                9

Figure 5: ST22M/ST22R - With Diskette Controller

  J1                   J3            J4             J2

  Floppy               To J2 on      To J2 on       To J1 on

  Diskette             First Drive   Second Drive   Both Drives

ÚÄÄÄÄÙ                 (Drive C)     (Drive D)

³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄ¿ Ýßßßß

³ ³  1    1ÄÄLED           ³        ÚÄÄÄÄÙ       ÚÄÄÄÄÄÄÙ  ÚÄÄÅÄÝ JP2

³ ³  ::   øøøøøJ6      ::::::::::   ³  ::::::::::::::::    ÀøÄÅÄÝ BIOS

ÀÄÅÄ ::                1            ³  1                  ÚÄÄÄÅÄÄ Address

  ³  ::                ::::::::::ÄÄÄÙ     ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ   ³ Ý

  ³  ::                1                  ³                   ³ Ý JP3

  ³  ::                                   ³     ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄ BIOS Enable/

  ³  ::                                 1øø     ³             ³ Ý Disable

  ³  ::      JP4                              1øø             ³ Ý

  ³       ÚÄ Floppy Diskette            1øø           ÚÄÄÄÄÄÄÄÅÄÄ JP1

  ³   :ÄÄÄÙ  Enable                       ÀÄÄÄÄÄÄÄÄÄÄÄÙ    ÚÄÄÅÄÝ Hard Drive/

  ³  1Ù                                                    ÀøÄÅÄÝ Diskette I/O

  ³      ððÝð}ÄÄ Aux Drive DC Power J5                        ³ Ý Address Select

  ÀÄÄÄÄÄ¿ Ü Ü Ü Ü Ü Ü ÜÚÄÄÄÄ¿ Ü Ü Ü Ü Ü Ü Ü Ü Ü Ü Ü Ü Ü ÜÚÄÄÄÄÙ Ý

        ÀÄßÄßÄßÄßÄßÄßÄßÙ    ÀÄßÄßÄßÄßÄßÄßÄßÄßÄßÄßÄßÄßÄßÄßÙ      Ý

                                                                Ý


ST21/22M/R pg 10
st22pg10

                                                               10

1.3  Controller Installation

CAUTION: VERIFY THAT THE POWER IS OFF.

1. Remove the System Cover (Refer to your computer system

manual).

Access to the screws is usually at the back of the system. Save

the screws. Systems vary, but most require you to slide the cover

forward for removal.

2.  Verify Correct Controller Jumper Options Selections

Refer to Section 1.1

Note: Normally, drive power is supplied via a power harness from

the system power supply directly to the drive's J3 DC power

connector. The J5 connector on the ST21/ST22 can be used to

provide disc drive power in systems lacking an extra power

harness or for Drive-on-a-Card applications. Refer to figures

4-6.

A cable splitter, often called a Y-cable, may be used to tap off

the diskette drive power cable. They are available from most

Distributors/Dealers.

3. Install the Controller as Illustrated in Figure 6 of the

Seagate Installation Guide (publication # 36127-xxx)

4. Verify correct cable attachment and replace the system cover.


ST21/22M/R pg 12
st22pg12

                                                               12

2.0  Preparing to Format Your Drive

Please read this section before proceeding to the formatting

instructions.  BE SURE TO BACK UP ANY DRIVE CONTAINING DATA.

FORMATTING AT ANY LEVEL MAY RESULT IN PARTIAL OR COMPLETE LOSS OF

DATA.  SEAGATE TECHNOLOGY, INC. ASSUMES NO LIABILITY FOR LOST DATA.

*   Always use the same version of DOS throughout the entire

process.  On two-drive system, always use the same version of DOS

on BOTH drives.

*   For optimum performance, format the drive installed in your

system in the same orientation in which it will be used.

*   The ST21 and ST22 have the ability to flash controller error

conditions via the drive front-panel LED.  Refer to Section 5.0

2.1  Paired Program Drive Formatting

Paired Program drives are shipped with a small DOS partition

containing Installation software and a README file which has the

latest information for the drive being installed.  See Section 3.0

2.2  Non-Paired Drive Formatting

Seagate non-paired drives do not have installation software or

recognizable format.  These drives may be installed by following the

procedures in Section 4.0.

2.3  Paired Drives:  Less than 32 Formatted MBytes

You will need ONE DOS-bootable diskette that has the boot files from

the version of DOS that you plan to use on your Seagate drive.  This

diskette should also contain the FORMAT program provided with DOS,

and sufficient space (approximately 50K Bytes) to save the

installation programs from the hard drive.  The diskette must NOT be

write-protected.


ST21/22M/R pg 13
st22pg13

                                                               13

2.4  Paired Drives:  Greater than 32 Formatted MBytes

You will need TWO Diskettes: One DOS-bootable with the version of

DOS you plan to use; the second diskette with at least 360K

Bytes available to save the installation and DISK MANAGER programs.

The diskette must not be write-protected.

2.5  CMOS Configuration

If you are installing your drive in a PC AT and a hard drive is not

presently attached or operational, the hard drive count in CMOS will

already set to zero.

If a standard hard drive is already attached and operating, it will

be the first drive and the Seagate Paired Program drive will be

Drive 2.  It is not necessary to change the CMOS hard drive count

when installing with ST21/22 controllers.

2.6  BIOS Enable/Disable

The ST21 and ST22 are shipped with the BIOS enabled, JP3 open.  To

disable the BIOS, attach jumper at JP3.  Refer to Figures 4-5.

2.6.1  BIOS Enabled

Drive        |  Controller BIOS     |      CMOS Setting

             |  Address             |

================================================================

  C          |  C8000 or CC000      |   Set to 0 or a type which

             |  (Primary I/O)       |   matches the R/W head and

             |                      |   cylinder specifications.

----------------------------------------------------------------

  D          |  C8000 or CC000      |   Do not set drive in CMOS

             |  (Primary I/O)       |

----------------------------------------------------------------

  C or D     |  D8000 or DC000      |   Do not set drive in CMOS

             |  (Secondary I/O)     |


ST21/22M/R pg 14
st22pg14

                                                               14

2.6.2  BIOS Disabled

Set all hard drives attached to the ST21/ST22 in the system CMOS

to a type that matches the Read/Write head and cylinder

specifications.

Remove jumpers JP1 and JP2, and attach jumper to JP3.

Important Note: The ST21/ST22 must be the primary controller

(i.e., DRIVE C:) when running with the BIOS disabled.

2.7  Read/Write Head Parking

A read/write head parking program, PARK.EXE or PARK.COM, is

preloaded on all Paired Program drives.

The following drives require running this PARK.EXE or PARK.COM

program before the drive/system is transported: ST124, ST225,

ST225R, ST238R, ST250R

If your drive is not Paired, see your Distributor/Dealer for a

read/write head parking program.

2.8  AT Systems with 40-Pin Hard Drive Interface (IDE)

Some newer AT systems have a 40-pin hard drive AT interface

connector on the motherboard. On most systems, the AT interface

connector must be disabled before the ST21/ST22 can be installed.

Refer to the hardware installation manual supplied with your

system to determine the interface enable/disable requirements.

The ST21/ST22 can operate concurrently with an installed 40-pin

drive, however the ST21/ST22 BIOS must be enabled and the JP1-JP2

jumpered to operate at the secondary address. Refer to Section

2.6.


ST21/22M/R pg 15
st22pg15

                                                               15

3.0  Paired Program Installations

Read Sections 1-2 before beginning any formatting. The entire

software installation routine is menu-driven and takes from 10 to

thirty minutes, depending on drive size. For specific DOS

questions, refer to the DOS manual supplied with your system.

After the format is completed, the read/write heads will be

parked. At the next power-up, the system will boot from the hard

disc.

3.1  Paired Program Formatting

Place a DOS-bootable diskette (to boot simply means to start the

system) in Drive A and switch the power on and follow the

instructions displayed on the screen.  Type:

C:INSTALLR C

If your are installing a second drive, type:

D:INSTALLR D

If you are installing a drive with DISK MANAGER software, and you

already have a hard disc in your system, you must copy the

DMDRVR.BIN and CONFIG.SYS files from the DISK MANAGER diskette to

the root directory of the existing (first, or boot) drive.

If you already have a CONFIG.SYS file on the boot drive, update

the file to include the following line:  DEVICE=DMDRVR.BIN

Refer to your DOS manual for instructions on editing the

CONFIG.SYS file. DISK MANAGER also provides help files which you

may print using the standard DOS print commands.


ST21/22M/R pg 16
st22pg16

                                                               16

4.0  Non-Paired Drive Formatting

Use this procedure for non-Paired drives or when using a Paired

drive whose installation software files were lost or not copied

before formatting.

BE SURE TO BACK-UP ANY DRIVE CONTAINING DATA. FORMATTING AT ANY

LEVEL MAY RESULT IN PARTIAL OR COMPLETE LOSS OF DATA. SEAGATE

TECHNOLOGY, INC. ASSUMES NO LIABILITY FOR LOST DATA.

Always use the same version of DOS throughout the entire process.

On two-drive systems: Always use the same version of DOS on both

drives. When adding a second drive, it is sometimes necessary to

reformat the first drive.

4.1  Low-Level Physical Format Using BIOS Facility

When using the system DEBUG to format in an AT system, the CMOS

or system setup should be set to 0 (i.e., no hard drive

installed).

        1. Boot the system from the DOS system diskette

        2. At the A: prompt, insert the system DEBUG diskette and

           type:

           DEBUG

           <ENTER>

        3. To access the controller's format routine; at the"-"

           prompt, type:

           G=XXXX:5 (Where XXXX is the BIOS base address). The

           most common BIOS address is C8000 (e.g., G=C800:5)

           Note: Seagate controllers will step you through the

           process. Refer to the drive charts, Figures 1-2, for

           correct drive parameters.

           DISK MANAGER is supplied with Seagate MFM and RLL

           drives having greater than 32 formatted megabytes.

           It can be used as an alternative to FDISK and FORMAT

           to partition and high-level format drives.


ST21/22M/R pg 17
st22pg17

                                                               17

           Use FDISK and FORMAT on your DOS diskette with drives

           having less than 32 formatted megabytes, or if you do

           not want to use DISK MANAGER.

           Note: Some versions of DOS have other names for FDISK

           and FORMAT (e.g., HDFORMAT). Refer to HARD DISC

           INSTALLATION in your DOS manual.

4.2 Low-Level Format With Controller BIOS Disabled

If you are running the ST21/ST22 with its BIOS disabled, use the

low-level format utility supplied with your system. A drive

interleave of 1:1 should be selected.


ST21/22M/R pg 18
st22pg18

                                                               18

5.0  Troubleshooting Your Installation

5.1  Controller Error Codes

The ST21 and ST22 will flash controller error conditions via the

drive activity LED. The code will repeat at about 1 second

intervals.

Error information is flashed only at power-up or soft boot. The

LED will repeat the error flashes until the condition is

corrected or the system is powered down.

Error code numbers 2 through 6 are fatal error. If you receive

any of these messages, contact your Distributor/Dealer.

Controller Error   |    Controller Error Condition

Codes (LED Flashes)|

=================================================================

      1            |  Normal completion of controller diagnostics

-----------------------------------------------------------------

      2            |  Failure of hard disc drive interface

-----------------------------------------------------------------

      3            |  Sector Buffer error

-----------------------------------------------------------------

      4            |  Controller task file interface failure

-----------------------------------------------------------------

      5            |  Microcode ROM checksum error

-----------------------------------------------------------------

      6            |  Controller ECC circuits failure

-----------------------------------------------------------------

5.2 Common System/Controller Problems

If you have a problem getting the initial screen, or later

getting the system to boot:

   * Check the cabling between the controller and drive. Pin-1 on

the controller always corresponds to Pin-1 at the drive

connector. Most cables have a contrasting color on the cable to

indicate Pin-1.

   * Check the power cable to the drive. Can you hear the drive

spin-up?


ST21/22M/R pg 19
st22pg19

                                                               19

   * Verify CMOS settings

   * Verify correct controller BIOS Address. If you have more

than one board that uses BIOS ROM space, each must be set to a

different memory address. Addressing multiple boards at the same

address can cause problems of a indeterminate nature.

   * Low-level formatting takes too long or never completes:

Format again. Make sure correct drive parameters were entered and

cable connections are correct.

   * FDISK or Partitioning Error Messages: "Error reading fixed

disc," "No fixed disc present": Check correct drive parameters

entered. Refer to pages 3-4 (Section 1.0) Turn the system off and

power-up again.

   * High-Level Format Error Message: "Invalid drive

specification": Check drive parameters and controller jumpers.

Run FDISK and high-level format again.

   * Drive fails to recalibrate or test Ready: Verify correct

installation, cables and drive select jumper.

   * After formatting with DISK MANAGER, your system does not

recognize the D, E, F ... partitions: First, make sure that you

boot from the hard drive. If you still cannot access these

partitions, check that the DISK MANAGER device driver, DMDRVR.BIN

is in the root directory of the C: (boot) drive. Verify that the

CONFIG.SYS file contains the following line:  DEVICE=DMDRVR.BIN

If you experience problems accessing your DOS partitions after

installation, refer to the help files provided with DISK MANAGER.

For system or operating system help, contact your computer

manufacturer. For additional installation support, contact your

authorized Seagate Distributor/Dealer.


Model # Convert & Interpret
 	Model Number Conversion and Interpretation

Old CDC / Imprimis model #'s to new Seagate #'s

New Seagate model #s to old CDC / Imprimis #s

Old Conner Peripherals model #'s to new Seagate #'s

New Seagate model #s to old Conner Peripherals #s

Seagate Model # interpretation

Old CDC / Imprimis Model # Interpretation

Old Conner Peripherals Model # Interpretation


CDC/Imprimis to Seagate #s
 	Old CDC / Imprimis model # to new Seagate model #

Conversion Chart:

CDC / Imprimis	Seagate

===========================

94155-135 	---	ST4135R

94155-85  	---	ST4085

94155-86  	---	ST4086

94155-96  	---	ST4097

94161-182 	---	ST4182N

94166-182 	---	ST4182E

94171-350 	---	ST4350N

94171-376 	---	ST4376N

94181-385H	---	ST4385N

94181-702 	---	ST4702N

94186-383 	---	ST4383E

94186-383H	---	ST4384E

94186-442 	---	ST4442E

94191-766 	---	ST4766N

94196-766 	---	ST4766E

94204-65  	---	ST274A

94204-71  	---	ST280A

94204-74  	---	ST274A

94204-81  	---	ST280A

94205-51  	---	ST253

94205-77  	---	ST279R

94211-106 	---	ST2106N

94216-106 	---	ST2106E

94221-125 	---	ST2125N

94241-383 	---	ST2383N

94241-502 	---	ST2502N

94244-274 	---	ST2274A

94244-383 	---	ST2383A

94246-182 	---	ST2182E

94246-383 	---	ST2383E

94351-090 	---	ST1090N

94351-111 	---	ST1111N

94351-126 	---	ST1126N

94351-133S	---	ST1133NS

94351-155 	---	ST1156N

94351-155S	---	ST1156NS

94351-160 	---	ST1162N

94351-186S	---	ST1186NS

94351-200 	---	ST1201N

94351-200S	---	ST1201NS

94351-230S	---	ST1239NS

94354-090 	---	ST1090A

94354-111 	---	ST1111A

94354-126 	---	ST1126A

94354-133 	---	ST1133A

94354-155 	---	ST1156A

94354-160 	---	ST1162A

94354-186 	---	ST1186A

94354-200 	---	ST1201A

94354-239 	---	ST1239A

94355-100 	---	ST1100

94355-150 	---	ST1150R

94356-111 	---	ST1111E

94356-155 	---	ST1156E

94356-200 	---	ST1201E

94601M	--- 	ST41200N

94601-767H	---	ST4767N

97100-80  	---	ST683J

97150-160 	---	ST6165J

97150-300 	---	ST6315J

97150-340 	---	ST6344J

97150-500 	---	ST6515J

97200-1130	---	ST81123J

97200-12G 	---	ST81236J

97200-23G 	---	ST82272J

97200-25G 	---	ST82500J

97200-368 	---	ST8368J

97200-500 	---	ST8500J

97200-736 	---	ST8741J

97200-850 	---	ST8851J

97201-12G 	---	ST81236N

97201-25G 	---	ST82500N

97201-368 	---	ST8368N

97201-500 	---	ST8500N

97201-736 	---	ST8741N

97201-850 	---	ST8851N

97209-12G 	---	ST81236K

97209-25G 	---	ST82500K

97229-1150	---	ST81154K

97289-21G 	---	ST82105K

97299-23G 	---	ST82368K

97500-12G 	---	ST41201J

97501-12G 	---	ST41520N

97509-12G 	---	ST41201K

Note:	Some Imprimis models have no Seagate model equivalent,

if so, see [image]   Old Wren Models prior to Seagate

New Seagate model # to old CDC / Imprimis model #


Seagate to CDC/Imprimis #s
 	New Seagate model # to old CDC / Imprimis model #

Conversion Chart:

Seagate	CDC / Imprimis

=============================

ST1090A	---	94354-090

ST1090N	---	94351-090

ST1100	---	94355-100

ST1111A	---	94354-111

ST1111E	---	94356-111

ST1111N	---	94351-111

ST1126A	---	94354-126

ST1126N	---	94351-126

ST1133A	---	94354-133

ST1133NS	---	94351-133S

ST1150R	---	94355-150

ST1156A	---	94354-155

ST1156E	---	94356-155

ST1156N	---	94351-155

ST1156NS	---	94351-155S

ST1162A	---	94354-160

ST1162N	---	94351-160

ST1186A	---	94354-186

ST1186NS	---	94351-186S

ST1201A	---	94354-200

ST1201E	---	94356-200

ST1201N	---	94351-200

ST1201NS	---	94351-200S

ST1239A	---	94354-239

ST1239NS	---	94351-230S

ST2106E	---	94216-106

ST2106N	---	94211-106

ST2125N	---	94221-125

ST2182E	---	94246-182

ST2274A	---	94244-274

ST2383A	---	94244-383

ST2383E	---	94246-383

ST3283N	---	94241-383

ST2502N	---	94241-502

ST253	---	94205-51

ST274A	---	94204-74

ST274A	---	94204-65

ST279R	---	94205-77

ST280A	---	94204-81

ST280A	---	94204-71

ST4085	---	94155-85

ST4086	---	94155-86

ST4097	---	94155-96

ST41200N	---	94601-12G/M

ST41201J	---	97500-12G

ST41201K	---	97509-12G

ST4135R	---	94155-135

ST41520N	---	97501-12G

ST4182E	---	94166-182

ST4182N	---	94161-182

ST4350N	---	94171-350

ST4376N	---	94171-376

ST4383E	---	94186-383

ST4384E	---	94186-383H

ST4385N	---	94181-385H

ST4442E	---	94186-442

ST4702N	---	94181-702

ST4766E	---	94196-766

ST4766N	---	94191-766

ST4767N	---	94601-767H

ST6165J	---	97150-160

ST6315J	---	97150-300

ST6344J	---	97150-340

ST6515J	---	97150-500

ST683J	---	97100-80

ST81123J	---	97200-1130

ST81154K	---	97229-1150

ST81236J	---	97200-12G

ST81236K	---	97209-12G

ST81236N	---	97201-12G

ST82105K	---	97289-21G

ST82272J	---	97200-23G

ST82368K	---	97299-23G

ST82500J	---	97200-25G

ST82500K	---	97209-25G

ST82500N	---	97201-25G

ST8368J	---	97200-368

ST8368N	---	97201-368

ST8500J	---	97200-500

ST8500N	---	97201-500

ST8741J	---	97200-736

ST8741N	---	97201-736

ST8851J	---	97200-850

ST8851N	---	97201-850

Old CDC / Imprimis model # to new Seagate model #


Conner to Seagate #s
 	Old Conner Peripherals model # to new Seagate model #

Conversion Chart

Conner	Seagate

===============================

CFA1275A	---	ST31274A

CFA1700A	---	ST31720A

CFA2161A	---	ST32161A

CFA270A	---	ST3271A

CFA425A	---	ST3423A

CFA540A	---	ST3544A

CFA850A	---	ST3853A

CFA851A	---	ST3852A

CFL350A	---	ST9352A

CFL420A	---	ST9422A

CFN250S	---	ST9252N

CFN340A	---	ST9342A

CFP1060S	---	ST31060N

CFP1060W	---	ST31060W

CFP1080E	---	ST31080WC

CFP1080S	---	ST31080N

CFP2105E	---	ST32105WC

CFP2105S	---	ST32105N

CFP2105W	---	ST32105W

CFP2107E	---	ST32107WC

CFP2107S	---	ST32107N

CFP2107SV	---	ST32107NV

CFP2107W	---	ST32107W

CFP2107WD	---	ST32107WD

CFP2107WV	---	ST32107WV

CFP2117E	---	ST32117WC

CFP2117S	---	ST32117N

CFP2117W	---	ST32117W

CFP2117WD	---	ST32117WD

CFP4207E	---	ST14207WC

CFP4207S	---	ST14207N

CFP4207SU	---	ST14209N

CFP4207SV	---	ST14207NV

CFP4207W	---	ST14207W

CFP4207WD	---	ST14207WD

CFP4207WU	---	ST14209W

CFP4207WV	---	ST14207WV

CFP4217E	---	ST34217WC

CFP4217S	---	ST34217N

CFP4217W	---	ST34217W

CFP4217WD	---	ST34217WD

CFS1060A	---	ST31060A

CFS1081A	---	ST31081A

CFS1275A	---	ST31275A

CFS1276A	---	ST31276A

CFS1621A	---	ST31621A

CFS210A	---	ST3211A

CFS270A	---	ST3270A

CFS420A	---	ST3420A

CFS425A	---	ST3425A

CFS540A	---	ST3543A

CFS541A	---	ST3541A

CFS635A	---	ST3635A

CFS636A	---	ST3636A

CFS850A	---	ST3851A

Note: Some Conner Peripherals models have no Seagate model equivalent,

if so, see [image]   Old Conner Models prior to Seagate

New Seagate model # to old Conner Peripherals model #


Seagate to Conner #s
 	New Seagate model # to old Conner Peripherals model #

Conversion Chart

Seagate	Conner

==============================

ST14207N	---	CFP4207S

ST14207NV	---	CFP4207SV

ST14207W	---	CFP4207W

ST14207WC	---	CFP4207E

ST14207WD	---	CFP4207WD

ST14207WV	---	CFP4207WV

ST14209N	---	CFP4207SU

ST14209W	---	CFP4207WU

ST31060A	---	CFS1060A

ST31060N	---	CFP1060S

ST31060W	---	CFP1060W

ST31080N	---	CFP1080S

ST31080WC	---	CFP1080E

ST31081A	---	CFS1081A

ST31274A	---	CFA1275A

ST31275A	---	CFS1275A

ST31276A	---	CFS1276A

ST31621A	---	CFS1621A

ST31720A	---	CFA1700A

ST32105N	---	CFP2105S

ST32105W	---	CFP2105W

ST32105WC	---	CFP2105E

ST32107N	---	CFP2107S

ST32107NV	---	CFP2107SV

ST32107W	---	CFP2107W

ST32107WC	---	CFP2107E

ST32107WD	---	CFP2107WD

ST32107WV	---	CFP2107WV

ST32117N	---	CFP2117S

ST32117W	---	CFP2117W

ST32117WC	---	CFP2117E

ST32117WD	---	CFP2117WD

ST3211A	---	CFS210A

ST32161A	---	CFA2161A

ST3270A	---	CFS270A

ST3271A	---	CFA270A

ST3420A	---	CFS420A

ST34217N	---	CFP4217S

ST34217W	---	CFP4217W

ST34217WC	---	CFP4217E

ST34217WD	---	CFP4217WD

ST3423A	---	CFA425A

ST3425A	---	CFS425A

ST3541A	---	CFS541A

ST3543A	---	CFS540A

ST3544A	---	CFA540A

ST3635A	---	CFS635A

ST3636A	---	CFS636A

ST3851A	---	CFS850A

ST3852A	---	CFA851A

ST3853A	---	CFA850A

ST9252N	---	CFN250S

ST9342A	---	CFN340A

ST9352A	---	CFL350A

ST9422A	---	CFL420A

Old Conner Peripherals model # to new Seagate model #


Seagate # interpret
Seagate Model Number Interpretation

  ÚÄÄÄÄÄ Seagate              ÚÄÄÄÄÄÄÄÄÄÄÄ PR = Paired Solution. Drive shipped

  ³   ÚÄ Technology           ³            with menu driven installation soft-

ÚÄÅÄÂÄÅÄÂÄÄÄÂÄÄÄÂÄ*ÄÂÄÄÄÂÄÄÄÂÄÅÄÄÂÄÄÄÂÄÄÄ¿ ware. Seagate controller or host

³ S ³ T ³ 1 ³ 4 ³ 8 ³ 0 ³ A ³ PR ³ - ³ X ³ adapter included with disc drive.

ÀÄÄÄÁÄÄÄÁÄÅÄÁÄÅÄÁÄÄÄÁÄÅÄÁÄÅÄÁÄÄÄÄÁÄÄÄÁÄÅÄÙ

          ³   ÀÄÄÄÂÄÄÄÙ   ÀÄÄÄÄÄÄÄÄ¿   ÀÄÄ Access Time 0 = Standard/1 = Faster

 ÚÄÄÄÄÄÄÄÄÙ       ÀÄÄÄÄÄÄÄÄÄÄ¿     ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

 FORM FACTOR               MBytes                INTERFACE

ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸

³1xxx = 3.5" half-height    ³Unformatted (approx.)³Unspecified = ST412/MFM   ³

³       (41 mm)             ³e.g. ST225 is 25     ³A  = ATA (IDE)            ³

³2xxx = 5.25" half-height   ³unformatted MBytes   ³AG = ATA w/SafeWrite Shock³

³       (41 mm)             ³                     ³C  = SCSI Wide uses Single³

³3xxx = 3.5" 1"/25mm height ³(Beginning late 1994 ³     Connector Attachment ³

³       5.7"/146mm depth    ³ATA and SCSI drives  ³D  = Differential SCSI    ³

³4xxx = 5.25" full-height   ³may show formatted   ³E  = ESDI                 ³

³       (82 mm)             ³MBytes)              ³J  = SMD/SME-E            ³

³5xxx = 3.5" 1"/25mm height ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµK  = IPI-2                ³

³       5"/127mm depth      ³                     ³N  = Narrow SCSI          ³

³6xxx = 9-inch              ³                     ³NM = SCSI Mac Compat.     ³

³8xxx = 8-inch              ³                     ³NV = SCSI NetWare Ready   ³

³7xxx = 1.8"                ³                     ³P  = PCMCIA (or early MFM ³

³9xxx = 2.5" .75"/19mm or   ³                     ³     Write Pre-Comp)      ³

³       .49"/12.5mm height  ³                     ³R  = ST412/RLL            ³

ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾                     ³S  = Synchronized Spindle ³

                                                  ³     or Synchronous SCSI  ³

                                                  ³W  = Wide SCSI            ³

                                                  ³FC = Fibre Channel SCSI   ³

                                                  ³X  = XT Bus (IDE)         ³

                                                  ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾

* Note: High capacity drives also use this digit to define spindle speed.

        (5 = 5400, 7 = 7200)


CDC/Imprimis # interpret
CDC / Imprimis Model Number Interpretation

                          Old CDC / Imprimis

                WREN and SWIFT MODEL NUMBERING SYSTEM

                    (using 94155-85P as example)

Model # digit           Description

-------------           ----------------------------

||               >>----> Facility Location

94 155-85P              94 = OK City

                        97 = Twin Cities

   ||            >>----> Series and Form Factor

94 15 5-85P             10 = RSD                20 = Sabre

                        15 = FSD                20 = Wren II  HH

                        15 = Wren I   FH        21 = Wren III HH

                        15 = Wren II  FH        22 = Sabre-2HP

                        16 = Wren III FH        22 = Wren V   HH

                        17 = Wren IV  FH        24 = Wren VI  HH

                        18 = Wren V   FH        35 = Swift    HH

                        19 = Wren VI  FH        50 = Elite    FH

                                                60 = Wren VII FH

     |           >>----> Interface

9415 5 -85P             0 = SMD                 5 = ST506/412

                        1 = SCSI/SASI           6 = ESDI

                        2 = LDI                 7 = ISI (Outside)

                        3 = FDI                 8 = 80286

                        3 = IPI-3               8 = SID

                        4 = AT                  9 = IPI-2

                        4 = ISI (Inside)

       ||        >>----> Capacity

94155- 85 P             Unformatted capacity in Megabytes (a few

                        models had formatted capacity, here)

         |       >>----> Special Designation

94155-85 P              P = Precompensation

                        M = MacWren

                        H = High Performamce

                        D = Differential

                        S = Synchronous Spindle Capability - Wren

                        S = Synchronous SCSI - Swift

                        G = Gigabyte


Conner # interpret
Conner Peripherals Model Number Interpretation

                           ÚÄÄÄÂÄ C or CP = Conner Peripherals

                           ³ ÚÄÁÄ if CP then this digit shows

                           ³ ³     form factor (CP2xxx=2.5,

                           ³ ³     CP3xx=3.5 half, CP3xxx=3.5 third)

                           ³ ³ ÚÄ Capacity (3 or 4 digits)

                           Ã¿³ÚÁ¿

                           CFS850A

                            ³³   ³

             F = Filepro ÄÄÄÙ³   ³

                             ³   ³   Interface

            Filepro Series = S   A = PC/AT/IDE

                 Advantage = A   S = SCSI Narrow

               Performance = P   W = SCSI Wide

                  Notebook = N   E = SCSI Single Connector (SCA)

               Low Profile = L   V = Audio / Video optimized

                                 D = SCSI Differential


ST-1111E
ST-1111E (94356-111) Swift ESDI

     ÚÄÄÄ\

     ³ 0 ³  5    ÚÄÄ Drive Selects

     ³ 0 ³  G  ÄÄÁÄÄ

     ³ 0 ³  G  1 2 4                                   ÚÄ Located on rear

     ³ 0 ³ 12  o o o                                   ³  side of drive

     ÀÄÄÄ/     o o o     Ú Control Cable               ³

     ÍÍÍÍÍÍÍÍ ÍÍ   ÍÍÍÍÑÍÍÍÍÑÑÍÍÍ ÑÍÍ             ÚÄÄÄÄÁÄÄÄÄ¿

      ³                1ÄÄÄÄÙ1ÄÄÄÄÙ                o o o o o

      ÀData Cable       Terminators                o o o o o   (front)

                                                   M S ³ ³ Ext

                                                   ³ ³ ³ ³ ³

                                                   ³ ³ ³ ³ ³

                       Motor Start option enable ÄÄÙ ³ ³ ³ ³

                       Soft Sector option enable  ÄÄÄÙ ³ ³ ³

                                                       ³ ³ ³

                               B/Sec        Sectors    ³ ³ ³      0=open

                               ÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍ   | | ³      1=closed

                               Test Only  ³            1 1 ³

                               512        ³34          1 0 ³ = 93,306,880

                               512        ³36          0 0 ³ = 98,795,520

                               256        ³64          0 1 ³

                                                           ³

                       External Spindle clock  ÄÄÄÄÄÄÄÄÄÄÄÄÙ

                             ST-1111E

                         94356-111 Swift

       UNFORMATTED CAPACITY (MB) ________________111

       FORMATTED CAPACITY (36 SECTORS) (MB) _____98 **

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________5,360

       CYLINDERS ________________________________1,072

       HEADS ____________________________________5

       DISCS ____________________________________3

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       TRANSFER RATE (mbytes/sec) _______________1.25

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       INTERFACE ________________________________ESDI

       SECTORS PER DRIVE ________________________192,960

       TPI (TRACKS PER INCH) ____________________1,350

       BPI (BITS PER INCH) ______________________28,103

       AVERAGE ACCESS (ms) ______________________15

       SINGLE TRACK SEEK (ms) ___________________4

       MAX FULL SEEK (ms) _______________________35

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.5

                           +12V TYPICAL (amps) __0.7

                           +5V START-UP (amps) __0.75

                           +5V TYPICAL (amps) ___0.4

                           TYPICAL (watts) ______11

                           MAXIMUM (watts) ______33.75

       BUFFERED STEP PULSE RATE (micro sec) _____6-200

       WRITE PRECOMP (cyl) ______________________N/A (1073)

       REDUCED WRITE CURRENT (cyl) ______________N/A (1073)

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________*

 * MAY REQUIRE A CONTROLLER WITH BIOS SUPPORT, OR FORMATTING

   AND PARTITIONING SOFTWARE.  ALSO, CHECK TO SEE IF YOUR CMOS SETUP

   HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE.

** ESDI controllers which offer an Alternate/Spare sector per track

   option will format to a capacity = Cyl*Hd*(SPT-1)*512 bytes

                          Swift Remote LED Option

               Front View of Drive Without the Plastic Bezel

                                  ÚÄÄÄÂÄÄÄ¿

                                  ³ A ³ B ³    B = Anode

                                  ÃÄÄÄÅÄÄÄ´    D = Cathode

                                  ³ C ³ D ³

              ...ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÏÍÍÍÏÍÍÍÍÍPÍWÍAÍÍÍ...

        ø Default jumper at C-D for LED mounted on drive PWA

        ø To use remote LED, remove jumper and extend B (Anode)

          and D (Cathode).

        ø Swift LED kit 75912397 allows connection to a remote LED

        ø Swift LED kit 95913369 has an LED for attachment to the

          system front bezel or a 5.25-inch frame kit

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-1156E
ST-1156E (94356-155) Swift ESDI

     ÚÄÄÄ\

     ³ 0 ³  5    ÚÄÄ Drive Selects

     ³ 0 ³  G  ÄÄÁÄÄ

     ³ 0 ³  G  1 2 4                                   ÚÄ Located on rear

     ³ 0 ³ 12  o o o                                   ³  side of drive

     ÀÄÄÄ/     o o o     Ú Control Cable               ³

     ÍÍÍÍÍÍÍÍ ÍÍ   ÍÍÍÍÑÍÍÍÍÑÑÍÍÍ ÑÍÍ             ÚÄÄÄÄÁÄÄÄÄ¿

      ³                1ÄÄÄÄÙ1ÄÄÄÄÙ                o o o o o

      ÀData Cable       Terminators                o o o o o   (front)

                                                   M S ³ ³ Ext

                                                   ³ ³ ³ ³ ³

                                                   ³ ³ ³ ³ ³

                       Motor Start option enable ÄÄÙ ³ ³ ³ ³

                       Soft Sector option enable  ÄÄÄÙ ³ ³ ³

                                                       ³ ³ ³

                               B/Sec        Sectors    ³ ³ ³      0=open

                               ÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍ   | | ³      1=closed

                               Test Only  ³            1 1 ³

                               512        ³34          1 0 ³ = 130,629,632

                               512        ³36          0 0 ³ = 138,313,728

                               256        ³64          0 1 ³

                                                           ³

                       External Spindle clock  ÄÄÄÄÄÄÄÄÄÄÄÄÙ

                             ST-1156E

                          94356-155 Swift

       UNFORMATTED CAPACITY (MB) ________________155

       FORMATTED CAPACITY (36 SECTORS) (MB) _____138 **

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________7,504

       CYLINDERS ________________________________1,072

       HEADS ____________________________________7

       DISCS ____________________________________4

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL

       TRANSFER RATE (mbytes/sec) _______________1.25

       SPINDLE SPEED (RPM) ______________________3,600

       INTERFACE ________________________________ESDI

       TPI (TRACKS PER INCH) ____________________1,350

       BPI (BITS PER INCH) ______________________28,103

       AVERAGE ACCESS (ms) ______________________15

       SINGLE TRACK SEEK (ms) ___________________4

       MTBF (power-on hours) ____________________70,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.5

                           +12V TYPICAL (amps) __0.7

                           +5V START-UP (amps) __0.75

                           +5V TYPICAL (amps) ___0.4

                           TYPICAL (watts) ______11

                           MAXIMUM (watts) ______33.75

       BUFFERED STEP PULSE RATE (micro sec) _____6-200

       WRITE PRECOMP (cyl) ______________________N/A (1073)

       REDUCED WRITE CURRENT (cyl) ______________N/A (1073)

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________*

 * MAY REQUIRE A CONTROLLER WITH BIOS SUPPORT, OR FORMATTING

   AND PARTITIONING SOFTWARE.  ALSO, CHECK TO SEE IF YOUR CMOS SETUP

   HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE.

** ESDI controllers which offer an Alternate/Spare sector per track

   option will format to a capacity = Cyl*Hd*(SPT-1)*512 bytes

                          Swift Remote LED Option

               Front View of Drive Without the Plastic Bezel

                                  ÚÄÄÄÂÄÄÄ¿

                                  ³ A ³ B ³    B = Anode

                                  ÃÄÄÄÅÄÄÄ´    D = Cathode

                                  ³ C ³ D ³

              ...ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÏÍÍÍÏÍÍÍÍÍPÍWÍAÍÍÍ...

        ø Default jumper at C-D for LED mounted on drive PWA

        ø To use remote LED, remove jumper and extend B (Anode)

          and D (Cathode).

        ø Swift LED kit 75912397 allows connection to a remote LED

        ø Swift LED kit 95913369 has an LED for attachment to the

          system front bezel or a 5.25-inch frame kit

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-1201E
ST-1201E (94356-200) Swift ESDI

     ÚÄÄÄ\

     ³ 0 ³  5    ÚÄÄ Drive Selects

     ³ 0 ³  G  ÄÄÁÄÄ

     ³ 0 ³  G  1 2 4                                   ÚÄ Located on rear

     ³ 0 ³ 12  o o o                                   ³  side of drive

     ÀÄÄÄ/     o o o     Ú Control Cable               ³

     ÍÍÍÍÍÍÍÍ ÍÍ   ÍÍÍÍÑÍÍÍÍÑÑÍÍÍ ÑÍÍ             ÚÄÄÄÄÁÄÄÄÄ¿

      ³                1ÄÄÄÄÙ1ÄÄÄÄÙ                o o o o o

      ÀData Cable       Terminators                o o o o o   (front)

                                                   M S ³ ³ Ext

                                                   ³ ³ ³ ³ ³

                                                   ³ ³ ³ ³ ³

                       Motor Start option enable ÄÄÙ ³ ³ ³ ³

                       Soft Sector option enable  ÄÄÄÙ ³ ³ ³

                                                       ³ ³ ³

                               B/Sec        Sectors    ³ ³ ³      0=open

                               ÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍ   | | ³      1=closed

                               Test Only  ³            1 1 ³

                               512        ³34          1 0 ³ = 167,952,384

                               512        ³36          0 0 ³ = 177,831,936

                               256        ³64          0 1 ³

                                                           ³

                       External Spindle clock  ÄÄÄÄÄÄÄÄÄÄÄÄÙ

                             ST-1201E

                         94356-200 Swift

       UNFORMATTED CAPACITY (MB) ________________201

       FORMATTED CAPACITY (36 SECTORS) (MB) _____177 **

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________9,648

       CYLINDERS ________________________________1,072

       HEADS ____________________________________9

       DISCS ____________________________________5

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       TRANSFER RATE (mbytes/sec) _______________1.25

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       INTERFACE ________________________________ESDI

       SECTORS PER DRIVE ________________________347,328

       TPI (TRACKS PER INCH) ____________________1,350

       BPI (BITS PER INCH) ______________________28,103

       AVERAGE ACCESS (ms) ______________________15

       SINGLE TRACK SEEK (ms) ___________________4

       MAX FULL SEEK (ms) _______________________35

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.5

                           +12V TYPICAL (amps) __0.7

                           +5V START-UP (amps) __0.75

                           +5V TYPICAL (amps) ___0.4

                           TYPICAL (watts) ______11

                           MAXIMUM (watts) ______12

       BUFFERED STEP PULSE RATE (micro sec) _____6-200

       WRITE PRECOMP (cyl) ______________________N/A (1073)

       REDUCED WRITE CURRENT (cyl) ______________N/A (1073)

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________*

 * MAY REQUIRE A CONTROLLER WITH BIOS SUPPORT, OR FORMATTING

   AND PARTITIONING SOFTWARE.  ALSO, CHECK TO SEE IF YOUR CMOS SETUP

   HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE.

** ESDI controllers which offer an Alternate/Spare sector per track

   option will format to a capacity = Cyl*Hd*(SPT-1)*512 bytes

                          Swift Remote LED Option

               Front View of Drive Without the Plastic Bezel

                                  ÚÄÄÄÂÄÄÄ¿

                                  ³ A ³ B ³    B = Anode

                                  ÃÄÄÄÅÄÄÄ´    D = Cathode

                                  ³ C ³ D ³

              ...ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÏÍÍÍÏÍÍÍÍÍPÍWÍAÍÍÍ...

        ø Default jumper at C-D for LED mounted on drive PWA

        ø To use remote LED, remove jumper and extend B (Anode)

          and D (Cathode).

        ø Swift LED kit 75912397 allows connection to a remote LED

        ø Swift LED kit 95913369 has an LED for attachment to the

          system front bezel or a 5.25-inch frame kit

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-2106E
ST-2106E (94216-106) Wren 3 HH ESDI

                                                      ÚÄ Test Seek

                                                      ³

                                  Terminator          o o o o    Ú12ÄGÄGÄ5Ä¿

          ÚÄÄ                  ÚÄÄÄÄÄÄÄÄÄ1            o o o o    ³ 0 0 0 0 ³

          ³                    ÀÄÄÄÄÄÄÄÄÄÙ            T 4 2 1    \Ä1Ä2Ä3Ä4Ä/

          ³     ÍÍÍÍÍÍÍÍ ÍÍ    ÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍÍ    ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

          ³     À Data Cable     À Controller            À Drive Select

          ³

          ÀÄ Note: Config header located on left rear of drive.

                       ÚÄÄÄÄÄÄÄÄÄÄÄ Motor Start option enable (closest pair

                       M S S S       of pins to front of drive).

         ³          ³  o o o o

   B/Sec ³  Sectors ³  o o o o

   ÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍ

   256   ³    64    ³    0 0 0                 0=open

   512   ³    35    ³    1 0 0 = 91,750,400    1=closed

   512   ³    36    ³    0 1 0 = 94,371,840

   512   ³    34    ³    1 1 0 = 89,128,960

   1024  ³    19    ³    1 0 1

         ³  Add/Mark³    1 1 1

                             ST-2106E

                        94216-106 WREN 3 HH

       UNFORMATTED CAPACITY (MB) ________________106

       FORMATTED CAPACITY (34 SECTORS) (MB) _____89

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________5,120

       CYLINDERS ________________________________1,024

       HEADS ____________________________________5

       DISCS ____________________________________3

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       TRANSFER RATE (mbytes/sec) _______________1.25

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       INTERFACE ________________________________ESDI

       TPI (TRACKS PER INCH) ____________________960

       BPI (BITS PER INCH) ______________________19,058

       AVERAGE ACCESS (ms) ______________________18

       SINGLE TRACK SEEK (ms) ___________________4

       MAX FULL SEEK (ms) _______________________35

       MTBF (power-on hours) ____________________100,000

       POWER REQUIREMENTS: +12V START-UP (amps) _4.5

                           +12V TYPICAL (amps) __1.0

                           +5V START-UP (amps) __1.0

                           +5V TYPICAL (amps) ___0.6

                           TYPICAL (watts) ______15

                           MAXIMUM (watts) ______59

       BUFFERED STEP PULSE RATE (micro sec) _____N/A

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________*

 * MAY REQUIRE A CONTROLLER WITH BIOS SUPPORT, OR FORMATTING

   AND PARTITIONING SOFTWARE.  ALSO, CHECK TO SEE IF YOUR CMOS SETUP

   HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE.

** ESDI controllers which offer an Alternate/Spare sector per track

   option will format to a capacity = Cyl*Hd*(SPT-1)*512 bytes

Seagate reserves the right to change, without notice, product

offerings or specifications. (11/11/92)


ST-2182E
ST-2182E (94246-182) Wren 6 HH ESDI

       Ú Data Cable    Ú Controller Cable               /4Ä3Ä2Ä1\

      ÍÍÍÍÍÍÍÍ ÍÍ    ÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍÍ    ÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ0 0 0 0ÆÍÍ

                  1ÄÄÄÄÄÄÄÄÄÄÄ¿  o o o o o       o o o  ÀÄÄÄÄÄÄÄÙ

                  ÀÄÄÄÄÄÄÄÄÄÄÄÙ  o o o o o       o o o   5 G G 12

                   Terminator    5 4 3 2 1       4 2 1

                                 ³ ³ ³ ³ ³        ÀDrive Selects

      Motor Start option enable ÄÙ ³ ³ ³ ÀÄ Factory use only

                                   ³ ³ ³

             B/Sec ³ Sectors       ³ ³ ³

             ÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍØÍÍÏÍÏÍÏÍ

             256   ³  96        ³  0 0 0

             512   ³  54        ³  1 0 0  = 160,690,176

             1024  ³  15        ³  0 1 0

                   ³  Special   ³  1 1 0

             512   ³  53        ³  0 0 1  = 157,714,432

             512   ³  51        ³  1 0 1  = 151,762,944

             1024  ³  28        ³  0 1 1

                   ³  Add/Mark  ³  1 1 1

                             ST-2182E

                        94246-182  WREN 6 HH

       UNFORMATTED CAPACITY (MB) ________________182

       FORMATTED CAPACITY (54 SECTORS) (MB) _____160

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________5812

       CYLINDERS ________________________________1453

       HEADS ____________________________________4

       DISCS ____________________________________3

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       TRANSFER RATE (mbytes/sec) _______________1.875

       INTERNAL TRANSFER RATE (mbits/sec) _______15

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       INTERFACE ________________________________ESDI

       TPI (TRACKS PER INCH) ____________________1459

       BPI (BITS PER INCH) ______________________31699

       AVERAGE ACCESS (ms) ______________________16

       SINGLE TRACK SEEK (ms) ___________________3

       MAX FULL SEEK (ms) _______________________33

       MTBF (power-on hours) ____________________100,000

       POWER REQUIREMENTS: +12V START-UP (amps) _4.5

                           +12V TYPICAL (amps) __0.9

                           +5V START-UP (amps) __1.0

                           +5V TYPICAL (amps) ___0.8

                           TYPICAL (watts) ______15

                           MAXIMUM (watts) ______59

       BUFFERED STEP PULSE RATE (micro sec) _____

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________*

 * MAY REQUIRE A CONTROLLER WITH BIOS SUPPORT, OR FORMATTING

   AND PARTITIONING SOFTWARE.  ALSO, CHECK TO SEE IF YOUR CMOS SETUP

   HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE.

** ESDI controllers which offer an Alternate/Spare sector per track

   option will format to a capacity = Cyl*Hd*(SPT-1)*512 bytes

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-2383E
ST-2383E (94246-383) Wren 6 HH ESDI

       Ú Data Cable    Ú Controller Cable               /4Ä3Ä2Ä1\

      ÍÍÍÍÍÍÍÍ ÍÍ    ÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍÍ    ÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ0 0 0 0ÆÍÍÍ

                  1ÄÄÄÄÄÄÄÄÄÄÄ¿  o o o o o       o o o  ÀÄÄÄÄÄÄÄÙ

                  ÀÄÄÄÄÄÄÄÄÄÄÄÙ  o o o o o       o o o   5 G G 12

                   Terminator    5 4 3 2 1       4 2 1

                                 ³ ³ ³ ³ ³        ÀDrive Selects

      Motor Start option enable ÄÙ ³ ³ ³ ÀÄ Factory use only

                                   ³ ³ ³

             B/Sec ³ Sectors       ³ ³ ³

             ÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍØÍÍÏÍÏÍÏÍ

             256   ³  96        ³  0 0 0

             512   ³  54        ³  1 0 0  = 338,107,392

             1024  ³  15        ³  0 1 0

                   ³  Special   ³  1 1 0

             512   ³  53        ³  0 0 1  = 331,846,144

             512   ³  51        ³  1 0 1  = 319,323,648

             1024  ³  28        ³  0 1 1

                   ³  Add/Mark  ³  1 1 1

                             ST-2383E

                        94246-383 WREN 6 HH

       UNFORMATTED CAPACITY (MB) ________________383

       FORMATTED CAPACITY (54 SECTORS) (MB) _____337 **

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________12,229

       CYLINDERS ________________________________1,747

       HEADS ____________________________________7

       DISCS ____________________________________4

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       TRANSFER RATE (mbytes/sec) _______________1.875

       INTERNAL TRANSFER RATE (mbits/sec) _______15

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       INTERFACE ________________________________ESDI

       TPI (TRACKS PER INCH) ____________________1,459

       BPI (BITS PER INCH) ______________________31,699

       AVERAGE ACCESS (ms) ______________________16

       SINGLE TRACK SEEK (ms) ___________________3

       MAX FULL SEEK (ms) _______________________33

       MTBF (power-on hours) ____________________100,000

       POWER REQUIREMENTS: +12V START-UP (amps) _4.5

                           +12V TYPICAL (amps) __0.85

                           +5V START-UP (amps) __1.0

                           +5V TYPICAL (amps) ___0.75

                           TYPICAL (watts) ______14

                           MAXIMUM (watts) ______59

       BUFFERED STEP PULSE RATE (micro sec) _____N/A

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________*

 * MAY REQUIRE A CONTROLLER WITH BIOS SUPPORT, OR FORMATTING

   AND PARTITIONING SOFTWARE.  ALSO, CHECK TO SEE IF YOUR CMOS SETUP

   HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE.

** ESDI controllers which offer an Alternate/Spare sector per track

   option will format to a capacity = Cyl*Hd*(SPT-1)*512 bytes

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-4182E
ST-4182E (94166-182) Wren 3 ESDI

      ÚDrive Selects   ÚÄÄÄÄÄÄÄÄÄÄÄÄÄ¿                    12 G G 5

      1 2 3 4 5 6 7    ³   Term     1³                   ÚÄÄÄÄÄÄÄÄÄ¿

      o o o o o o o    ³ 14 pin dip  ³ ÚCommand Cable    ³ 0 0 0 0 ³ Power

      o o o o o o o    ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÙÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿1 \ÄÄÄÄÄÄÄÄÄ/

     ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                        ÚÄÄÄÄÄÄÄÄÄÄ¿1 ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

     ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍ ÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                        ÀÄÄÄÄÄÄÄÄÄÄÙ

                         ÀData Cable

                          ÚÄ Motor Start option enable

                          ³

                          |  SW1   (located at front of drive behind the

       B/Sec ³  Sectors ³ 1 2 3 4   front plate)

       ÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍØÍMÍÍÍÍÍÍ

       512   ³    34    ³   1 1 0 = 151,815,168   1=on; 0=off

       512   ³    35    ³   1 0 0 = 156,280,320

       512   ³    36    ³   0 1 0 = 160,745,472

       256   ³    64    ³   0 0 0

             ³ Add Mark ³   1 1 1

                             ST-4182E

                        94166-182 WREN 3 FH

       UNFORMATTED CAPACITY (MB) ________________182

       FORMATTED CAPACITY (34 SECTORS) (MB) _____151.8 **

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________8,721

       CYLINDERS ________________________________969

       HEADS ____________________________________9

       DISCS ____________________________________5

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       TRANSFER RATE (mbytes/sec) _______________1.25

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       INTERFACE ________________________________ESDI

       TPI (TRACKS PER INCH) ____________________960

       BPI (BITS PER INCH) ______________________19,058

       AVERAGE ACCESS (ms) ______________________16.5

       SINGLE TRACK SEEK (ms) ___________________4

       MAX FULL SEEK (ms) _______________________40

       MTBF (power-on hours) ____________________100,000

       POWER REQUIREMENTS: +12V START-UP (amps) _4.5

                           +12V TYPICAL (amps) __1.4

                           +5V START-UP (amps) __1.4

                           +5V TYPICAL (amps) ___0.8

                           TYPICAL (watts) ______21

                           MAXIMUM (watts) ______61

       BUFFERED STEP PULSE RATE (micro sec) _____N/A

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________*

 * MAY REQUIRE A CONTROLLER WITH BIOS SUPPORT, OR FORMATTING

   AND PARTITIONING SOFTWARE.  ALSO, CHECK TO SEE IF YOUR CMOS SETUP

   HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE.

** ESDI controllers which offer an Alternate/Spare sector per track

   option will format to a capacity = Cyl*Hd*(SPT-1)*512 bytes

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-4383E
ST-4383E (94186-383) Wren 5 FH ESDI

       ÚData Cable              ÚController Cable     /Ä5ÄGÄGÄ12\

      ÍÍÍÍÍÍÍÍ ÍÍÍ             ÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍÍÍ    Í³ 0 0 0 0 ÆÍÍ

                o o o o o 1ÄÄÄÄÄÄÄÄÄÄÄ¿ o o o o o o o ÀÄÄÄÄÄÄÄÄÄÙ

                o o o o o ÀTerminatorÄÙ o o o o o o o

                1 2 3 4 5               7 6 5 4 3 2 1

  Motor Start ÄÄÙ ³ ³ ³ ³                        ÀDrive Selects

option enable     ³ ³ ³ ÀÄ Factory use   Note:  There are 2 types of PWA's.

                  ³ ³ ³    only          One with drive select header on the

       Sectors    ³ ³ ³                  left, and one with header on the

       ÍÍÍÍÍÍÍÍÍÍÍØÍØÍØÍÍ                right (like this). Pins positions

          64      0 0 0                  are the same.

          35      0 0 1 = 328,939,520

          10      0 1 0

          19      0 1 1                0=open; 1=closed

          36      1 0 0 = 338,337,792

          34      1 0 1 = 319,541,248

          87      1 1 0

    Add Mark      1 1 1

                             ST-4383E

                        94186-383 WREN 5 FH

       UNFORMATTED CAPACITY (MB) ________________383

       FORMATTED CAPACITY (34 SECTORS) (MB) _____319 **

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________18356

       CYLINDERS ________________________________1412

       HEADS ____________________________________13

       DISCS ____________________________________7

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       TRANSFER RATE (mbytes/sec) _______________1.25

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       INTERFACE ________________________________ESDI

       TPI (TRACKS PER INCH) ____________________1280

       BPI (BITS PER INCH) ______________________19600

       AVERAGE ACCESS (ms) ______________________18

       SINGLE TRACK SEEK (ms) ___________________4

       MAX FULL SEEK (ms) _______________________40

       MTBF (power-on hours) ____________________100,000

       POWER REQUIREMENTS: +12V START-UP (amps) _4.5

                           +12V TYPICAL (amps) __2.0

                           +5V START-UP (amps) __1.4

                           +5V TYPICAL (amps) ___0.8

                           TYPICAL (watts) ______23

                           MAXIMUM (watts) ______61

       BUFFERED STEP PULSE RATE (micro sec) _____

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________*

 * MAY REQUIRE A CONTROLLER WITH BIOS SUPPORT, OR FORMATTING

   AND PARTITIONING SOFTWARE.  ALSO, CHECK TO SEE IF YOUR CMOS SETUP

   HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE.

** ESDI controllers which offer an Alternate/Spare sector per track

   option will format to a capacity = Cyl*Hd*(SPT-1)*512 bytes

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-4384E
ST-4384E (94186-383H) Wren 5 FH ESDI

       ÚData Cable              ÚController Cable     /Ä5ÄGÄGÄ12\

      ÍÍÍÍÍÍÍÍ ÍÍÍ             ÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍÍÍ    Í³ 0 0 0 0 ÆÍÍ

                o o o o o 1ÄÄÄÄÄÄÄÄÄÄÄ¿ o o o o o o o ÀÄÄÄÄÄÄÄÄÄÙ

                o o o o o ÀTerminatorÄÙ o o o o o o o

                1 2 3 4 5               7 6 5 4 3 2 1

  Motor Start ÄÄÙ ³ ³ ³ ³                        ÀDrive Selects

option enable     ³ ³ ³ ÀÄ Factory use    Note:  There are 2 types of PWA's.

                  ³ ³ ³    only           One with drive select header on the

       Sectors    ³ ³ ³                   left, and one with header on the

       ÍÍÍÍÍÍÍÍÍÍÍØÍØÍØÍÍ                 right (like this). Pin positions

          64      0 0 0                   are the same.

          35      0 0 1 = 329,011,200

          10      0 1 0

          19      0 1 1                0=open; 1=closed

          36      1 0 0 = 338,411,520

          34      1 0 1 = 319,610,880

          87      1 1 0

    Add Mark      1 1 1

                             ST-4384E

                        94186-383H WREN 5 FH

       UNFORMATTED CAPACITY (MB) ________________383

       FORMATTED CAPACITY (34 SECTORS) (MB) _____319 **

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________18360

       CYLINDERS ________________________________1224

       HEADS ____________________________________15

       DISCS ____________________________________8

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       TRANSFER RATE (mbytes/sec) _______________1.25

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       INTERFACE ________________________________ESDI

       TPI (TRACKS PER INCH) ____________________1280

       BPI (BITS PER INCH) ______________________19600

       AVERAGE ACCESS (ms) ______________________14.5

       SINGLE TRACK SEEK (ms) ___________________3

       MAX FULL SEEK (ms) _______________________29

       MTBF (power-on hours) ____________________100,000

       POWER REQUIREMENTS: +12V START-UP (amps) _4.5

                           +12V TYPICAL (amps) __2.0

                           +5V START-UP (amps) __1.4

                           +5V TYPICAL (amps) ___0.8

                           TYPICAL (watts) ______23

                           MAXIMUM (watts) ______61

       BUFFERED STEP PULSE RATE (micro sec) _____

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________*

 * MAY REQUIRE A CONTROLLER WITH BIOS SUPPORT, OR FORMATTING

   AND PARTITIONING SOFTWARE.  ALSO, CHECK TO SEE IF YOUR CMOS SETUP

   HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE.

** ESDI controllers which offer an Alternate/Spare sector per track

   option will format to a capacity = Cyl*Hd*(SPT-1)*512 bytes

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-4442E
ST-4442E (94186-442) Wren 5 FH ESDI

       ÚData Cable              ÚController Cable     /Ä5ÄGÄGÄ12\

      ÍÍÍÍÍÍÍÍ ÍÍÍ             ÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍÍÍ    Í³ 0 0 0 0 ÆÍÍ

                o o o o o 1ÄÄÄÄÄÄÄÄÄÄÄ¿ o o o o o o o ÀÄÄÄÄÄÄÄÄÄÙ

                o o o o o ÀTerminatorÄÙ o o o o o o o

                1 2 3 4 5               7 6 5 4 3 2 1

  Motor Start ÄÄÙ ³ ³ ³ ³                        ÀDrive Selects

option enable     ³ ³ ³ ÀÄ Factory use   Note:  There are 2 types of PWA's.

                  ³ ³ ³    only          One with drive select header on the

       Sectors    ³ ³ ³                  left, and one with header on the

       ÍÍÍÍÍÍÍÍÍÍÍØÍØÍØÍÍ                right (like this). Pin positions

          64      0 0 0                  are the same.

          35      0 0 1 = 379,545,600

          10      0 1 0                0=open; 1=closed

          19      0 1 1

          36      1 0 0 = 390,389,760

          34      1 0 1 = 368,701,440

          87      1 1 0

    Add Mark      1 1 1

                             ST-4442E

                       94186-442 WREN 5 FH

       UNFORMATTED CAPACITY (MB) ________________442

       FORMATTED CAPACITY (34 SECTORS) (MB) _____368 **

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________21180

       CYLINDERS ________________________________1412

       HEADS ____________________________________15

       DISCS ____________________________________8

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       TRANSFER RATE (mbytes/sec) _______________1.25

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       INTERFACE ________________________________ESDI

       TPI (TRACKS PER INCH) ____________________1280

       BPI (BITS PER INCH) ______________________19600

       AVERAGE ACCESS (ms) ______________________16

       SINGLE TRACK SEEK (ms) ___________________3

       MAX FULL SEEK (ms) _______________________33

       MTBF (power-on hours) ____________________100,000

       POWER REQUIREMENTS: +12V START-UP (amps) _4.5

                           +12V TYPICAL (amps) __2.0

                           +5V START-UP (amps) __1.4

                           +5V TYPICAL (amps) ___0.8

                           TYPICAL (watts) ______23

                           MAXIMUM (watts) ______61

       BUFFERED STEP PULSE RATE (micro sec) _____

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________*

 * MAY REQUIRE A CONTROLLER WITH BIOS SUPPORT, OR FORMATTING

   AND PARTITIONING SOFTWARE.  ALSO, CHECK TO SEE IF YOUR CMOS SETUP

   HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE.

** ESDI controllers which offer an Alternate/Spare sector per track

   option will format to a capacity = Cyl*Hd*(SPT-1)*512 bytes

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-4766E
ST-4766E (94196-766) (94196-383 same jumpers) Wren 6 FH ESDI

       ÚData Cable                     ÚController Cable     /Ä5ÄGÄGÄ12\

      ÍÍÍÍÍÍÍÍ ÍÍÍ                    ÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍÍÍ    Í³ 0 0 0 0 ÆÍÍ

                o o o o o o  1ÄÄÄÄÄÄÄÄÄÄÄ¿ oÂo o o o o o o o ÀÄÄÄÄÄÄÄÄÄÙ

                o o o o o o  ÀTerminatorÄÙ  ³  o o o o o o o

                1 2 3 4 5 6                 ³  7 6 5 4 3 2 1

  Motor Start ÄÄÙ ³ ³ ³ ³ À Reserved        ³           ÀDrive Selects

option enable     ³ ³ ³ ÀÄÄ Factory use     ³

                  ³ ³ ³     only            ÀÄÄ Write Protect drive

       Sectors    ³ ³ ³                         option enable

       ÍÍÍÍÍÍÍÍÑÍÍØÍØÍØÍÍ

          96   ³  0 0 0

          53   ³  0 0 1 = 664,289,280

   Undefined   ³  0 1 0               0=open; 1=closed

     Special   ³  0 1 1

          54   ³  1 0 0 = 676,823,040

          51   ³  1 0 1 = 639,221,760

   Undefined   ³  1 1 0

    Add Mark   ³  1 1 1

                             ST-4766E

                       94196-766 WREN 6 FH

       UNFORMATTED CAPACITY (MB) ________________766

       FORMATTED CAPACITY (53 SECTORS) (MB) _____664 **

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________24480

       CYLINDERS ________________________________1632

       HEADS ____________________________________15

       DISCS ____________________________________8

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       TRANSFER RATE (mbytes/sec) _______________1.875

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       INTERFACE ________________________________ESDI

       TPI (TRACKS PER INCH) ____________________1459

       BPI (BITS PER INCH) ______________________30500

       AVERAGE ACCESS (ms) ______________________15.5

       SINGLE TRACK SEEK (ms) ___________________3

       MAX FULL SEEK (ms) _______________________37

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _4.5

                           +12V TYPICAL (amps) __1.6

                           +5V START-UP (amps) __0.8

                           +5V TYPICAL (amps) ___1.2

                           TYPICAL (watts) ______20

                           MAXIMUM (watts) ______58

       BUFFERED STEP PULSE RATE (micro sec) _____

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________*

 * MAY REQUIRE A CONTROLLER WITH BIOS SUPPORT, OR FORMATTING

   AND PARTITIONING SOFTWARE.  ALSO, CHECK TO SEE IF YOUR CMOS SETUP

   HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE.

** ESDI controllers which offer an Alternate/Spare sector per track

   option will format to a capacity = Cyl*Hd*(SPT-1)*512 bytes

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-4767ES
ST-4767ES Wren Runner 2 FH ESDI

          ÚData Cable                ÚController Cable     /Ä5ÄGÄGÄ12\

         ÍÍÍÍÍÍÍÍ ÍÍÍ           J11 ÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍÍÍ    Í³ 0 0 0 0 ÆÍÍ

                o o o o o o o   o o   1ÄÄÄÄÄÄÄÄÄÄÄ¿ o o o oÀÄÄÄJ1ÄÄÄÄÙ

            J9  o o o o o o o   ÄÂÄ   ÀTerminatorÄÙ o o o o

                1 2 3 4 5 6 7    À´Synchronous      1 2 4 W

  Motor Start ÄÄÙ ³ ³ ³ ³ ³ ³     ³Spindles         ÄÄÂÄÄ ³    J8

option enable     ³ ³ ³ ³ ³ ³                         ³   À Write Protect

                  ³ ³ ³ ³ ³ À Synchronized Spindle    ÀÄÄÄÄ Drive Selects

Factory use only ÄÙ ³ ³ ³ ³   Terminator (connected on       Binary Coded

                    ³ ³ ³ ³   last drive in daisy chain)

         Sectors    ³ ³ ³ ÀÄ Factory use only

         ÍÍÍÍÍÍÍÍÍÍÍØÍØÍØÍÍ

       Special      0 0 0

            60      0 0 1 = 644,659,200

            61      0 1 0 = 655,403,520

            62      0 1 1 = 666,147,840

            63      1 0 0 = 676,892,160

            33      1 0 1

      Reserved      1 1 0    0=open; 1=closed

      Add Mark      1 1 1

                             ST-4767E

       UNFORMATTED CAPACITY (MB) ________________788

       FORMATTED CAPACITY (63 SECTORS) (MB) _____676 **

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________20,985

       CYLINDERS ________________________________1399

       HEADS ____________________________________15

       DISCS ____________________________________8

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (1,7)

       TRANSFER RATE (mbytes/sec) _______________3

       INTERNAL TRANSFER RATE (mbits/sec) _______24

       SPINDLE SPEED (RPM) ______________________4,800

       AVERAGE LATENCY (mSEC) ___________________6.25

       INTERFACE ________________________________ESDI

       TPI (TRACKS PER INCH) ____________________1,600

       BPI (BITS PER INCH) ______________________32,049

       AVERAGE ACCESS (ms) ______________________11.9

       SINGLE TRACK SEEK (ms) ___________________2.5

       MAX FULL SEEK (ms) _______________________25

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _4.5

                           +12V TYPICAL (amps) __2.0

                           +5V START-UP (amps) __1.2

                           +5V TYPICAL (amps) ___0.8

                           TYPICAL (watts) ______27

                           MAXIMUM (watts) ______

       BUFFERED STEP PULSE RATE (micro sec) _____

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________*

 * MAY REQUIRE A CONTROLLER WITH BIOS SUPPORT, OR FORMATTING

   AND PARTITIONING SOFTWARE.  ALSO, CHECK TO SEE IF YOUR CMOS SETUP

   HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE.

** ESDI controllers which offer an Alternate/Spare sector per track

   option will format to a capacity = Cyl*Hd*(SPT-1)*512 bytes

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-4769ES
ST-4769ES Wren Runner 2 FH ESDI

          ÚData Cable                ÚController Cable     /Ä5ÄGÄGÄ12\

         ÍÍÍÍÍÍÍÍ ÍÍÍ           J11 ÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍÍÍ    Í³ 0 0 0 0 ÆÍÍ

                o o o o o o o   o o   1ÄÄÄÄÄÄÄÄÄÄÄ¿ o o o oÀÄÄÄJ1ÄÄÄÄÙ

            J9  o o o o o o o   ÄÂÄ   ÀTerminatorÄÙ o o o o

                1 2 3 4 5 6 7    À´Synchronous      1 2 4 W

  Motor Start ÄÄÙ ³ ³ ³ ³ ³ ³     ³Spindles         ÄÄÂÄÄ ³    J8

option enable     ³ ³ ³ ³ ³ ³                         ³   À Write Protect

                  ³ ³ ³ ³ ³ À Synchronized Spindle    ÀÄÄÄÄ Drive Selects

Factory use only ÄÙ ³ ³ ³ ³   Terminator (connected on       Binary Coded

                    ³ ³ ³ ³   last drive in daisy chain)

         Sectors    ³ ³ ³ ÀÄ Factory use only

         ÍÍÍÍÍÍÍÍÍÍÍØÍØÍØÍÍ

       Special      0 0 0

            50      0 0 1 = 595,968,000

            51      0 1 0 = 607,887,360

            52      0 1 1 = 619,806,720

            53      1 0 0 = 631,726,080

            29      1 0 1

      Reserved      1 1 0

      Add Mark      1 1 1     0=open; 1=closed

                             ST-4769E

       UNFORMATTED CAPACITY (MB) ________________

       FORMATTED CAPACITY (53 SECTORS) (MB) _____631

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________23,280

       CYLINDERS ________________________________1552

       HEADS ____________________________________15

       DISCS ____________________________________8

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______22

       SPINDLE SPEED (RPM) ______________________4,800

       AVERAGE LATENCY (mSEC) ___________________6.25

       INTERFACE ________________________________ESDI

       TPI (TRACKS PER INCH) ____________________1,600

       BPI (BITS PER INCH) ______________________29,378

       AVERAGE ACCESS (ms) ______________________12.9

       SINGLE TRACK SEEK (ms) ___________________2.5

       MAX FULL SEEK (ms) _______________________27

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _4.5

                           +12V TYPICAL (amps) __2.0

                           +5V START-UP (amps) __1.2

                           +5V TYPICAL (amps) ___0.8

                           TYPICAL (watts) ______27

                           MAXIMUM (watts) ______

       BUFFERED STEP PULSE RATE (micro sec) _____

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________*

 * MAY REQUIRE A CONTROLLER WITH BIOS SUPPORT, OR FORMATTING

   AND PARTITIONING SOFTWARE.  ALSO, CHECK TO SEE IF YOUR CMOS SETUP

   HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE.

** ESDI controllers which offer an Alternate/Spare sector per track

   option will format to a capacity = Cyl*Hd*(SPT-1)*512 bytes

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-15150FC
ST-15150FC Fibre Channel FC-AL, Dual Port (Barracuda 4)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  ST-15150FC

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

       40 pin I/O and DC Power Wall/bracket Connection

                     ³  Female

    J1          /ÄÄÄÄ³ÄÄÄÄÄÄÄÄÄ\      TOP (HDA)

     ÍÍÍÍÍÍÍÍÍÍ/ ×××××××××××××× \ÍÍÍÍÍÍÍÍÍÍ

              (\Ä1ÄÄÄÄÄÄÄÄÄÄÄÄ20/)    BOTTOM

     Notes on 40 pin I/O connector:

            +12v  =  pins  2, 3, 4, 21

            +5v   =  pins  19, 20, 40

            GND   =  pins  6, 22, 23, 26, 29, 32, 35

  Mating FC connector: AMP US p/n: 787317-1 straight-in, Male 40-pin

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (ST-15150FC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

Reserved. Shipped with cover installed.

Do not remove. Do not install jumpers

                                  ³     ÚÂÄÄÄÄ Reserved

                                  ³     ³³ÚÄÄÄ Fault LED

                                  ³     ³³³ÚÄÄ Port B Bypass LED

                                  ³     ³³³³ÚÄ Port A Bypass LED

                      TOP (HDA)  ÕØÍÍÍ¸ ³³³³1

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::³::::::ÆÍÍ

                 *    BOTTOM     ÔÍÍÍÍ¾³³³ÀÅÙ

                 ³               J6    ³³³ ÀÄÄ Ground

            LED ÄÙ                     ³³ÀÄÄÄÄ Active LED

                                       ³ÀÄÄÄÄÄ Ground

                                       ÀÄÄÄÄÄÄ Remote LED (pin-11 +5v)

  ST15150FC drives have two ports for connection to two

  independent loops.  Both loops may be active, but only

  one of these ports may be receiving or originating data

  at any one time.  Do not connect both ports to the same

  loop.

                            ST-15150FC

       UNFORMATTED CAPACITY (MB) ________________5062

       FORMATTED CAPACITY (xx SECTORS) (MB) _____4294

       AVERAGE SECTORS PER TRACK ________________107 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________77,931

       CYLINDERS ________________________________3,711 user

       HEADS ______PHYSICAL______________________21

       DISCS (3.5 in) ___________________________11

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec)________47.4 to 71.9

       EXTERNAL TRANSFER RATE (mbyte/sec) _______106.3 Sync

       SPINDLE SPEED (RPM) ______________________7,200

       AVERAGE LATENCY (mSEC) ___________________4.17

       BUFFER ___________________________________1024 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________FC-AL

                                                 ASA II

       BYTES PER TRACK __________________________64,773 average

       SECTORS PER DRIVE ________________________8,388,315

       TPI (TRACKS PER INCH) ____________________4,048

       BPI (BITS PER INCH) ______________________73,820

       AVERAGE ACCESS (ms) (read/write)__________8.0/9.0

         Drive level without controller overhead

       SINGLE TRACK SEEK (ms) ___________________0.6/0.9

       MAX FULL SEEK (ms) _______________________17/19

       MTBF (power-on hours) ____________________800,000

       SHOCK (G's):

                operating (Read/Write) __________2

                nonoperating ____________________50

       ACOUSTICS (typ/max dBA) __________________4.7/

       POWER DISSIPATION (watts/BTUs) Active ____15/51

                                      Idle ______12/41

       POWER REQUIREMENTS: +12V START-UP (amps) _2.18

                           +12V TYPICAL (amps) __0.83 idle

                           +5V START-UP (amps) __1.0

                           +5V TYPICAL (amps) ___0.76 idle

                           IDLE (watts) _________14

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):     1.63/41.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.97/151.6

                        Weight    (lbs/kg):     2.3/1.04

Already low-level formatted at the factory with 9 spare sectors

per cylinder and 1 spare cylinder per unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (12/13/96)


ST-19101FC
ST-19101FC Fibre Channel FC-AL, Dual Port (Cheetah 9)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  ST-19101FC

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

       40 pin I/O and DC Power Wall/bracket Connection

                     ³  Female

    J1          /ÄÄÄÄ³ÄÄÄÄÄÄÄÄÄ\      TOP (HDA)

     ÍÍÍÍÍÍÍÍÍÍ/ ×××××××××××××× \ÍÍÍÍÍÍÍÍÍÍ

              (\Ä1ÄÄÄÄÄÄÄÄÄÄÄÄ20/)    BOTTOM

     Notes on 40 pin I/O connector:

            +12v  =  pins  2, 3, 4, 21

            +5v   =  pins  19, 20, 40

            GND   =  pins  6, 22, 23, 26, 29, 32, 35

  Mating FC connector: AMP US p/n: 787317-1 straight-in, Male 40-pin

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (ST-19101FC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

Reserved. Shipped with cover installed.

Do not remove. Do not install jumpers

                                  ³     ÚÂÄÄÄÄ Reserved

                                  ³     ³³ÚÄÄÄ Fault LED

                                  ³     ³³³ÚÄÄ Port B Bypass LED

                                  ³     ³³³³ÚÄ Port A Bypass LED

                      TOP (HDA)  ÕØÍÍÍ¸ ³³³³1

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::³::::::ÆÍÍ

                 *    BOTTOM     ÔÍÍÍÍ¾³³³ÀÅÙ

                 ³               J6    ³³³ ÀÄÄ Ground

            LED ÄÙ                     ³³ÀÄÄÄÄ Active LED

                                       ³ÀÄÄÄÄÄ Ground

                                       ÀÄÄÄÄÄÄ Remote LED (pin-11 +5v)

  ST19101FC drives have two ports for connection to two

  independent loops.  Both loops may be active, but only

  one of these ports may be receiving or originating data

  at any one time.  Do not connect both ports to the same

  loop.

                            ST-19101FC

       UNFORMATTED CAPACITY (MB) ________________11700

       FORMATTED CAPACITY (MB) __________________9100

       AVERAGE SECTORS PER TRACK ________________ rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________105,312

       CYLINDERS ________________________________6,582 user

       HEADS ______PHYSICAL______________________16

       DISCS (3.5 in) ___________________________8

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________PRML (0,4,4)

       INTERNAL TRANSFER RATE (mbits/sec)________122 to 177

       INTERNAL FORMATTED TRANSFER RATE (MB/sec)_11.3 to 16.8

       EXTERNAL TRANSFER RATE (mbyte/sec) _______106.3 Sync

       SPINDLE SPEED (RPM) ______________________7,200

       AVERAGE LATENCY (mSEC) ___________________4.17

       BUFFER ___________________________________1024 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________FC-AL

         Fibre Channel - Arbitrated Loop, ASA II

       BYTES PER TRACK __________________________

       SECTORS PER DRIVE ________________________17,839,344

       TPI (TRACKS PER INCH) ____________________

       BPI (BITS PER INCH) ______________________

       AVERAGE ACCESS (ms) (read/write)__________8/9

         Drive level with controller overhead

       SINGLE TRACK SEEK (ms) ___________________0.78/1.04

       MAX FULL SEEK (ms) _______________________19

       MTBF (power-on hours) ____________________1,000,000

       SHOCK (G's):

                operating (Read/Write) __________

                abnormal ________________________

                nonoperating ____________________

       ACOUSTICS (Bels typical, sound power) ____

       POWER DISSIPATION (watts/BTUs) Active ____

                                      Idle ______

       POWER REQUIREMENTS: +12V START-UP (amps) _4.2

                           +12V TYPICAL (amps) __1.6 idle

                           +5V START-UP (amps) __

                           +5V TYPICAL (amps) ___1.15 idle

                           IDLE (watts) _________24.6

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):     1.63/41.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.75/146.1

                        Weight    (lbs/kg):     2.3/1.04

Already low-level formatted at the factory with 16 spare sectors

per cylinder and 1 spare cylinder per unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (12/11/96)


ST-19171FC
ST-19171FC Fibre Channel FC-AL, Dual Port (Barracuda 9)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  ST-19171FC

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

       40 pin I/O and DC Power Wall/bracket Connection

                     ³  Female

    J1          /ÄÄÄÄ³ÄÄÄÄÄÄÄÄÄ\      TOP (HDA)

     ÍÍÍÍÍÍÍÍÍÍ/ ×××××××××××××× \ÍÍÍÍÍÍÍÍÍÍ

              (\Ä1ÄÄÄÄÄÄÄÄÄÄÄÄ20/)    BOTTOM

     Notes on 40 pin I/O connector:

            +12v  =  pins  2, 3, 4, 21

            +5v   =  pins  19, 20, 40

            GND   =  pins  6, 22, 23, 26, 29, 32, 35

  Mating FC connector: AMP US p/n: 787317-1 straight-in, Male 40-pin

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (ST-19171FC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

Reserved. Shipped with cover installed.

Do not remove. Do not install jumpers

                                  ³     ÚÂÄÄÄÄ Reserved

                                  ³     ³³ÚÄÄÄ Fault LED

                                  ³     ³³³ÚÄÄ Port B Bypass LED

                                  ³     ³³³³ÚÄ Port A Bypass LED

                      TOP (HDA)  ÕØÍÍÍ¸ ³³³³1

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::³::::::ÆÍÍ

                 *    BOTTOM     ÔÍÍÍÍ¾³³³ÀÅÙ

                 ³               J6    ³³³ ÀÄÄ Ground

            LED ÄÙ                     ³³ÀÄÄÄÄ Active LED

                                       ³ÀÄÄÄÄÄ Ground

                                       ÀÄÄÄÄÄÄ Remote LED (pin-11 +5v)

  ST19171FC drives have two ports for connection to two

  independent loops.  Both loops may be active, but only

  one of these ports may be receiving or originating data

  at any one time.  Do not connect both ports to the same

  loop.

                            ST-19171FC

       UNFORMATTED CAPACITY (MB) ________________11700

       FORMATTED CAPACITY (MB) __________________9100

       AVERAGE SECTORS PER TRACK ________________168 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________105,460

       CYLINDERS ________________________________5,273 user

       HEADS ______PHYSICAL______________________20

       DISCS (3.5 in) ___________________________11

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________PRML (0,4,4)

       INTERNAL TRANSFER RATE (mbits/sec)________80 to 124

       EXTERNAL TRANSFER RATE (mbyte/sec) _______106.3 Sync

       SPINDLE SPEED (RPM) ______________________7,200

       AVERAGE LATENCY (mSEC) ___________________4.17

       BUFFER (/optional)________________________512/2048 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________FC-AL

         Fibre Channel - Arbitrated Loop, ASA II

       BYTES PER TRACK __________________________

       SECTORS PER DRIVE ________________________17,773,440

       TPI (TRACKS PER INCH) ____________________5555

       BPI (BITS PER INCH) ______________________

       AVERAGE ACCESS (ms) (read/write)__________8.2/9.7

         Drive level with controller overhead

       SINGLE TRACK SEEK (ms) ___________________0.8/1.2

       MAX FULL SEEK (ms) _______________________19.2/20.2

       MTBF (power-on hours) ____________________1,000,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.2

                           +12V TYPICAL (amps) __0.8 idle

                           +5V START-UP (amps) __

                           +5V TYPICAL (amps) ___0.97 idle

                           IDLE (watts) _________12.4

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):     1.63/41.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.75/146.1

                        Weight    (lbs/kg):     2.3/1.04

Already low-level formatted at the factory with 16 spare sectors

per cylinder and 1 spare cylinder per unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (09/16/96)


ST-32171FC
ST-32171FC Fibre Channel FC-AL, Dual Port (Barracuda 4LP)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  ST-32171FC

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

       40 pin I/O and DC Power Wall/bracket Connection

                     ³  Female

    J1          /ÄÄÄÄ³ÄÄÄÄÄÄÄÄÄ\      TOP (HDA)

     ÍÍÍÍÍÍÍÍÍÍ/ ×××××××××××××× \ÍÍÍÍÍÍÍÍÍÍ

              (\Ä1ÄÄÄÄÄÄÄÄÄÄÄÄ20/)    BOTTOM

     Notes on 40 pin I/O connector:

            +12v  =  pins  2, 3, 4, 21

            +5v   =  pins  19, 20, 40

            GND   =  pins  6, 22, 23, 26, 29, 32, 35

  Mating FC connector: AMP US p/n: 787317-1 straight-in, Male 40-pin

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (ST-32171FC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

Reserved. Shipped with cover installed.

Do not remove. Do not install jumpers

                                  ³     ÚÂÄÄÄÄ Reserved

                                  ³     ³³ÚÄÄÄ Fault LED

                                  ³     ³³³ÚÄÄ Port B Bypass LED

                                  ³     ³³³³ÚÄ Port A Bypass LED

                      TOP (HDA)  ÕØÍÍÍ¸ ³³³³1

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::³::::::ÆÍÍ

                 *    BOTTOM     ÔÍÍÍÍ¾³³³ÀÅÙ

                 ³               J6    ³³³ ÀÄÄ Ground

            LED ÄÙ                     ³³ÀÄÄÄÄ Active LED

                                       ³ÀÄÄÄÄÄ Ground

                                       ÀÄÄÄÄÄÄ Remote LED (pin-11 +5v)

  ST32171FC drives have two ports for connection to two

  independent loops.  Both loops may be active, but only

  one of these ports may be receiving or originating data

  at any one time.  Do not connect both ports to the same

  loop.

                            ST-32171FC

       FORMATTED CAPACITY (GB) __________________2.16

       AVERAGE SECTORS PER TRACK ________________165 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________25,890

       CYLINDERS ________________________________5,178 user

       HEADS ______PHYSICAL______________________5

       DISCS (3.5 in) ___________________________3

       MEDIA TYPE _______________________________THIN FILM/MR

       RECORDING METHOD _________________________ZBR PRML (0,4,4)

       INTERNAL TRANSFER RATE (mbits/sec)________80 to 122

       EXTERNAL TRANSFER RATE (mbyte/sec) _______100 Sync

       SPINDLE SPEED (RPM) ______________________7,200

       AVERAGE LATENCY (mSEC) ___________________4.17

       BUFFER ___________________________________512 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________FC-AL

         Fibre Channel - Arbitrated Loop, ASA II

       BYTES PER TRACK __________________________102,500 average

       SECTORS PER DRIVE ________________________

       TPI (TRACKS PER INCH) ____________________5,555

       BPI (PEAK KBITS PER INCH) ________________123

       AVERAGE ACCESS (ms read/write)____________9.2/10.2

         Drive level with controller overhead

       SINGLE TRACK SEEK (ms read/write) ________1.9/2.2

       MAX FULL SEEK (ms) _______________________17.2/18.2

       MTBF (power-on hours) ____________________1,000,000

       SHOCK (G's):

                operating (Read/Write) __________2

                abnormal ________________________10

                nonoperating ____________________75

       ACOUSTICS (Bels typical, sound power) ____4.2

       POWER DISSIPATION (watts/BTUs) Active ____12.9/44

                                      Idle ______8.8/30

       POWER REQUIREMENTS: +12V START-UP (amps) _2.00

                           +12V TYPICAL (amps) __0.52 idle

                           +5V START-UP (amps) __0.78

                           +5V TYPICAL (amps) ___0.46 idle

                           IDLE (watts) _________10

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):      1.0/25.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.47/146

                        Weight    (lbs/kg):      1.5/0.68

Already low-level formatted at the factory with 80 spare sectors at

the end of each 8 cylinder region.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (12/11/96)


ST-32271FC
ST-32271FC Fibre Channel FC-AL, Dual Port (Barracuda 4LP)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  ST-32271FC

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

       40 pin I/O and DC Power Wall/bracket Connection

                     ³  Female

    J1          /ÄÄÄÄ³ÄÄÄÄÄÄÄÄÄ\      TOP (HDA)

     ÍÍÍÍÍÍÍÍÍÍ/ ×××××××××××××× \ÍÍÍÍÍÍÍÍÍÍ

              (\Ä1ÄÄÄÄÄÄÄÄÄÄÄÄ20/)    BOTTOM

     Notes on 40 pin I/O connector:

            +12v  =  pins  2, 3, 4, 21

            +5v   =  pins  19, 20, 40

            GND   =  pins  6, 22, 23, 26, 29, 32, 35

  Mating FC connector: AMP US p/n: 787317-1 straight-in, Male 40-pin

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (ST-32271FC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

Reserved. Shipped with cover installed.

Do not remove. Do not install jumpers

                                  ³     ÚÂÄÄÄÄ Reserved

                                  ³     ³³ÚÄÄÄ Fault LED

                                  ³     ³³³ÚÄÄ Port B Bypass LED

                                  ³     ³³³³ÚÄ Port A Bypass LED

                      TOP (HDA)  ÕØÍÍÍ¸ ³³³³1

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::³::::::ÆÍÍ

                 *    BOTTOM     ÔÍÍÍÍ¾³³³ÀÅÙ

                 ³               J6    ³³³ ÀÄÄ Ground

            LED ÄÙ                     ³³ÀÄÄÄÄ Active LED

                                       ³ÀÄÄÄÄÄ Ground

                                       ÀÄÄÄÄÄÄ Remote LED (pin-11 +5v)

  ST32271FC drives have two ports for connection to two

  independent loops.  Both loops may be active, but only

  one of these ports may be receiving or originating data

  at any one time.  Do not connect both ports to the same

  loop.

                            ST-32271FC

       FORMATTED CAPACITY (GB) __________________2.26

       AVERAGE SECTORS PER TRACK ________________172 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________25,890

       CYLINDERS ________________________________5,178 user

       HEADS ______PHYSICAL______________________5

       DISCS (3.5 in) ___________________________3

       MEDIA TYPE _______________________________THIN FILM/MR

       RECORDING METHOD _________________________ZBR PRML (0,4,4)

       INTERNAL TRANSFER RATE (mbits/sec)________83 to 126

       EXTERNAL TRANSFER RATE (mbyte/sec) _______100 Sync

       SPINDLE SPEED (RPM) ______________________7,200

       AVERAGE LATENCY (mSEC) ___________________4.17

       BUFFER ___________________________________512 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________FC-AL

         Fibre Channel - Arbitrated Loop, ASA II

       BYTES PER TRACK __________________________106,980 average

       SECTORS PER DRIVE ________________________

       TPI (TRACKS PER INCH) ____________________5,555

       BPI (PEAK KBITS PER INCH) ________________128

       AVERAGE ACCESS (ms read/write)____________9.2/10.2

         Drive level with controller overhead

       SINGLE TRACK SEEK (ms read/write) ________1.9/2.2

       MAX FULL SEEK (ms) _______________________17.2/18.2

       MTBF (power-on hours) ____________________1,000,000

       SHOCK (G's):

                operating (Read/Write) __________2

                abnormal ________________________10

                nonoperating ____________________75

       ACOUSTICS (Bels typical, sound power) ____4.2

       POWER DISSIPATION (watts/BTUs) Active ____12.9/44

                                      Idle ______8.8/30

       POWER REQUIREMENTS: +12V START-UP (amps) _2.00

                           +12V TYPICAL (amps) __0.52 idle

                           +5V START-UP (amps) __0.78

                           +5V TYPICAL (amps) ___0.46 idle

                           IDLE (watts) _________10

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):      1.0/25.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.47/146

                        Weight    (lbs/kg):      1.5/0.68

Already low-level formatted at the factory with 80 spare sectors at

the end of each 8 cylinder region.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (12/11/96)


ST-34371FC
ST-34371FC Fibre Channel FC-AL, Dual Port (Barracuda 4LP)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  ST-34371FC

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

       40 pin I/O and DC Power Wall/bracket Connection

                     ³  Female

    J1          /ÄÄÄÄ³ÄÄÄÄÄÄÄÄÄ\      TOP (HDA)

     ÍÍÍÍÍÍÍÍÍÍ/ ×××××××××××××× \ÍÍÍÍÍÍÍÍÍÍ

              (\Ä1ÄÄÄÄÄÄÄÄÄÄÄÄ20/)    BOTTOM

     Notes on 40 pin I/O connector:

            +12v  =  pins  2, 3, 4, 21

            +5v   =  pins  19, 20, 40

            GND   =  pins  6, 22, 23, 26, 29, 32, 35

  Mating FC connector: AMP US p/n: 787317-1 straight-in, Male 40-pin

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (ST-34371FC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

Reserved. Shipped with cover installed.

Do not remove. Do not install jumpers

                                  ³     ÚÂÄÄÄÄ Reserved

                                  ³     ³³ÚÄÄÄ Fault LED

                                  ³     ³³³ÚÄÄ Port B Bypass LED

                                  ³     ³³³³ÚÄ Port A Bypass LED

                      TOP (HDA)  ÕØÍÍÍ¸ ³³³³1

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::³::::::ÆÍÍ

                 *    BOTTOM     ÔÍÍÍÍ¾³³³ÀÅÙ

                 ³               J6    ³³³ ÀÄÄ Ground

            LED ÄÙ                     ³³ÀÄÄÄÄ Active LED

                                       ³ÀÄÄÄÄÄ Ground

                                       ÀÄÄÄÄÄÄ Remote LED (pin-11 +5v)

  ST34371FC drives have two ports for connection to two

  independent loops.  Both loops may be active, but only

  one of these ports may be receiving or originating data

  at any one time.  Do not connect both ports to the same

  loop.

                            ST-34371FC

       FORMATTED CAPACITY (GB) __________________4.35

       AVERAGE SECTORS PER TRACK ________________165 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________51,780

       CYLINDERS ________________________________5,178 user

       HEADS ______PHYSICAL______________________10

       DISCS (3.5 in) ___________________________5

       MEDIA TYPE _______________________________THIN FILM/MR

       RECORDING METHOD _________________________ZBR PRML (0,4,4)

       INTERNAL TRANSFER RATE (mbits/sec)________80 to 122

       EXTERNAL TRANSFER RATE (mbyte/sec) _______100 Sync

       SPINDLE SPEED (RPM) ______________________7,200

       AVERAGE LATENCY (mSEC) ___________________4.17

       BUFFER ___________________________________512 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________FC-AL

         Fibre Channel - Arbitrated Loop, ASA II

       BYTES PER TRACK __________________________102,500 average

       SECTORS PER DRIVE ________________________

       TPI (TRACKS PER INCH) ____________________5,555

       BPI (PEAK KBITS PER INCH) ________________123

       AVERAGE ACCESS (ms read/write)____________9.2/10.2

         Drive level with controller overhead

       SINGLE TRACK SEEK (ms read/write) ________1.9/2.2

       MAX FULL SEEK (ms) _______________________17.2/18.2

       MTBF (power-on hours) ____________________1,000,000

       SHOCK (G's):

                operating (Read/Write) __________2

                abnormal ________________________10

                nonoperating ____________________75

       ACOUSTICS (Bels typical, sound power) ____4.2

       POWER DISSIPATION (watts/BTUs) Active ____12.9/44

                                      Idle ______8.8/30

       POWER REQUIREMENTS: +12V START-UP (amps) _2.44

                           +12V TYPICAL (amps) __0.54 idle

                           +5V START-UP (amps) __0.78

                           +5V TYPICAL (amps) ___0.46 idle

                           IDLE (watts) _________10

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):      1.0/25.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.47/146

                        Weight    (lbs/kg):      1.5/0.68

Already low-level formatted at the factory with 80 spare sectors at

the end of each 8 cylinder region.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (12/11/96)


ST-34501FC
ST-34501FC Fibre Channel FC-AL, Dual Port (Cheetah 4LP)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  ST-34501FC

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

       40 pin I/O and DC Power Wall/bracket Connection

                     ³  Female

    J1          /ÄÄÄÄ³ÄÄÄÄÄÄÄÄÄ\      TOP (HDA)

     ÍÍÍÍÍÍÍÍÍÍ/ ×××××××××××××× \ÍÍÍÍÍÍÍÍÍÍ

              (\Ä1ÄÄÄÄÄÄÄÄÄÄÄÄ20/)    BOTTOM

     Notes on 40 pin I/O connector:

            +12v  =  pins  2, 3, 4, 21

            +5v   =  pins  19, 20, 40

            GND   =  pins  6, 22, 23, 26, 29, 32, 35

  Mating FC connector: AMP US p/n: 787317-1 straight-in, Male 40-pin

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (ST-34501FC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

Reserved. Shipped with cover installed.

Do not remove. Do not install jumpers

                                  ³     ÚÂÄÄÄÄ Reserved

                                  ³     ³³ÚÄÄÄ Fault LED

                                  ³     ³³³ÚÄÄ Port B Bypass LED

                                  ³     ³³³³ÚÄ Port A Bypass LED

                      TOP (HDA)  ÕØÍÍÍ¸ ³³³³1

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::³::::::ÆÍÍ

                 *    BOTTOM     ÔÍÍÍÍ¾³³³ÀÅÙ

                 ³               J6    ³³³ ÀÄÄ Ground

            LED ÄÙ                     ³³ÀÄÄÄÄ Active LED

                                       ³ÀÄÄÄÄÄ Ground

                                       ÀÄÄÄÄÄÄ Remote LED (pin-11 +5v)

  ST34501FC drives have two ports for connection to two

  independent loops.  Both loops may be active, but only

  one of these ports may be receiving or originating data

  at any one time.  Do not connect both ports to the same

  loop.

                            ST-34501FC

       FORMATTED CAPACITY (GB) __________________4.55

       AVERAGE SECTORS PER TRACK ________________172 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________52,656

       CYLINDERS ________________________________6,582 user

       HEADS ______PHYSICAL______________________8

       DISCS (3.5 in) ___________________________4

       MEDIA TYPE _______________________________THIN FILM/MR

       RECORDING METHOD _________________________ZBR PRML (0,4,4)

       INTERNAL TRANSFER RATE (mbits/sec)________122 to 177

       INTERNAL FORMATTED TRANSFER RATE (MB/sec)_11.3 to 16.8

       EXTERNAL TRANSFER RATE (mbyte/sec) _______100 Sync

       SPINDLE SPEED (RPM) ______________________10,033

       AVERAGE LATENCY (mSEC) ___________________2.99

       BUFFER ___________ _______________________1024 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________FC-AL

         Fibre Channel - Arbitrated Loop, ASA II

       BYTES PER TRACK __________________________ average

       SECTORS PER DRIVE ________________________8,890,080

       TPI (TRACKS PER INCH) ____________________

       BPI (PEAK KBITS PER INCH) ________________

       AVERAGE ACCESS (ms read/write)____________7.8/8.5

         Drive level with controller overhead

       SINGLE TRACK SEEK (ms read/write) ________0.78/1.04

       MAX FULL SEEK (ms) _______________________19

       MTBF (power-on hours) ____________________1,000,000

       SHOCK (G's):

                operating (Read/Write) __________

                abnormal ________________________

                nonoperating ____________________

       ACOUSTICS (Bels typical, sound power) ____

       POWER DISSIPATION (watts/BTUs) Active ____

                                      Idle ______

       POWER REQUIREMENTS: +12V START-UP (amps) _3.0

                           +12V TYPICAL (amps) __0.94 idle

                           +5V START-UP (amps) __

                           +5V TYPICAL (amps) ___1.15 idle

                           IDLE (watts) _________16.2

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):      1.0/25.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.47/146

                        Weight    (lbs/kg):      1.5/0.68

Already low-level formatted at the factory with 80 spare sectors at

the end of each 8 cylinder region.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (12/11/96)


ST-34571FC
ST-34571FC Fibre Channel FC-AL, Dual Port (Barracuda 4LP)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  ST-34571FC

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

       40 pin I/O and DC Power Wall/bracket Connection

                     ³  Female

    J1          /ÄÄÄÄ³ÄÄÄÄÄÄÄÄÄ\      TOP (HDA)

     ÍÍÍÍÍÍÍÍÍÍ/ ×××××××××××××× \ÍÍÍÍÍÍÍÍÍÍ

              (\Ä1ÄÄÄÄÄÄÄÄÄÄÄÄ20/)    BOTTOM

     Notes on 40 pin I/O connector:

            +12v  =  pins  2, 3, 4, 21

            +5v   =  pins  19, 20, 40

            GND   =  pins  6, 22, 23, 26, 29, 32, 35

  Mating FC connector: AMP US p/n: 787317-1 straight-in, Male 40-pin

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (ST-34571FC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

Reserved. Shipped with cover installed.

Do not remove. Do not install jumpers

                                  ³     ÚÂÄÄÄÄ Reserved

                                  ³     ³³ÚÄÄÄ Fault LED

                                  ³     ³³³ÚÄÄ Port B Bypass LED

                                  ³     ³³³³ÚÄ Port A Bypass LED

                      TOP (HDA)  ÕØÍÍÍ¸ ³³³³1

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::³::::::ÆÍÍ

                 *    BOTTOM     ÔÍÍÍÍ¾³³³ÀÅÙ

                 ³               J6    ³³³ ÀÄÄ Ground

            LED ÄÙ                     ³³ÀÄÄÄÄ Active LED

                                       ³ÀÄÄÄÄÄ Ground

                                       ÀÄÄÄÄÄÄ Remote LED (pin-11 +5v)

  ST34571FC drives have two ports for connection to two

  independent loops.  Both loops may be active, but only

  one of these ports may be receiving or originating data

  at any one time.  Do not connect both ports to the same

  loop.

                            ST-34571FC

       FORMATTED CAPACITY (GB) __________________4.55

       AVERAGE SECTORS PER TRACK ________________172 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________51,780

       CYLINDERS ________________________________5,178 user

       HEADS ______PHYSICAL______________________10

       DISCS (3.5 in) ___________________________5

       MEDIA TYPE _______________________________THIN FILM/MR

       RECORDING METHOD _________________________ZBR PRML (0,4,4)

       INTERNAL TRANSFER RATE (mbits/sec)________83 to 126

       EXTERNAL TRANSFER RATE (mbyte/sec) _______100 Sync

       SPINDLE SPEED (RPM) ______________________7,200

       AVERAGE LATENCY (mSEC) ___________________4.17

       BUFFER ___________________________________512 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________FC-AL

         Fibre Channel - Arbitrated Loop, ASA II

       BYTES PER TRACK __________________________106,980 average

       SECTORS PER DRIVE ________________________

       TPI (TRACKS PER INCH) ____________________5,555

       BPI (PEAK KBITS PER INCH) ________________128

       AVERAGE ACCESS (ms read/write)____________9.2/10.2

         Drive level with controller overhead

       SINGLE TRACK SEEK (ms read/write) ________1.9/2.2

       MAX FULL SEEK (ms) _______________________17.2/18.2

       MTBF (power-on hours) ____________________1,000,000

       SHOCK (G's):

                operating (Read/Write) __________2

                abnormal ________________________10

                nonoperating ____________________75

       ACOUSTICS (Bels typical, sound power) ____4.2

       POWER DISSIPATION (watts/BTUs) Active ____12.9/44

                                      Idle ______8.8/30

       POWER REQUIREMENTS: +12V START-UP (amps) _2.44

                           +12V TYPICAL (amps) __0.54 idle

                           +5V START-UP (amps) __0.78

                           +5V TYPICAL (amps) ___0.46 idle

                           IDLE (watts) _________10

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):      1.0/25.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.47/146

                        Weight    (lbs/kg):      1.5/0.68

Already low-level formatted at the factory with 80 spare sectors at

the end of each 8 cylinder region.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (12/11/96)


Glossary
A

ACCESS

ACCESS TIME

ACTUATOR

ADAPTIVE CACHING

ADDRESS

ADDRESS MARK

ADJUSTABLE INTERLEAVE

ANSI

APPLICATION PROGRAM

AREAL DENSITY

ARRAY

ASA

ASCII

ASME

ASPI

ASYNCHRONOUS DATA

ATA

ATAPI

AT INTERFACE

AUTOMATIC BACK UP OF FILES

AUXILIARY MEMORY

AUXILIARY STORAGE DEVICE

AVERAGE ACCESS TIME

AZIMUTH

B

BACKUP DEVICE

BACKUP FILE

BAUD RATE

BCAI

BDOS

BI-DIRECTIONAL BUS

BINARY

BIOS

BIT

BIT CELL LENGTH

BIT CELL TIME

BIT DENSITY

BIT JITTER

BIT SHIFT

BLOCK

BOOT

BUFFER

BUFFERED SEEK

BUS

BUS MASTERING

BYTE

C

CACHE HIT

CACHE MEMORY

CAM

CAPACITY

CARRIAGE ASSEMBLY

CD-ROM

CENTRAL PROCESSOR UNIT

CHANNEL

CHARACTER

CHIP

CLOCK RATE

CLOSED LOOP

CLUSTER SIZE

CODE

COERCIVITY

COMMAND

CONSOLE

CONTROLLER

CORE

CPU

CRASH

CYCLIC-REDUNDANCY-CHECK

CYLINDER

D

DAISY CHAIN

DAT

DATA

DATA ACCESS

DATA ADDRESS

DATA BASE

DATA BASE MANAGEMENT SYSTEM

DATA ENCODING

DATA FIELD

DATA SEPARATOR

DATA TRACK

DATA TRANSFER RATE

DECREASE THE FLYING HEIGHT

DEDICATED SERVO SYSTEM

DEFAULT

DEFECT-FREE DRIVE

DENSITY

DIGITAL

DIRECT ACCESS

DIRECTORY

DISC FILE

DISC OPERATING SYSTEM

DISC PACK

DISC/PLATTER

DISC STORAGE

DISKETTE

DMA

DOS

DRIVE

DRIVE SELECT

DRIVE TYPE

DRIVER

DROP-IN/DROP-OUT

DRUM

E

ECC

EFFECTIVE SEEK TIME

EISA

ELECTRO-STATIC DISCHARGE

ELEVATOR SORTING

EMBEDDED SERVO SYSTEM

ENHANCED IDE

ERASE

ERROR

ESDI

EXECUTE

F

FAST ATA

Fast SCSI

FCI

FEEDBACK

FETCH

FIBRE CHANNEL

FIELDS

FILE

FILE ALLOCATION TABLE

FILE NAME

FIRMWARE

FIXED DISC

FLOPPY DISC

FLUX CHANGE

FLUX CHANGES PER INCH

FM

FORMAT

FORMATTED CAPACITY

FPI

FRICTION

FULL HEIGHT DRIVE

G

G

GAP

GAP LENGTH

GAP WIDTH

GCR

GIGABYTE

GUARD BAND

H

HALF HIGH DRIVE

HARD DISC DRIVE

HARD ERROR

HARD ERROR MAP

HARD SECTOR MODE

HARDWARE

HDA

HEAD

HEAD CRASH

HEAD LANDING AND TAKEOFF

HEAD LANDING ZONE

HEAD POSITIONER

HEAD SLAP

HELICAL SCAN

HEXADECIMAL

HOT SPARE

HOT SWAP

I

IDE

ID FIELD

IMAGE-BACKUP MODE

INDEX

INDEX TIME

INPUT

INPUT/OUTPUT

INTELLIGENT PERIPHERAL

INTERFACE

INTERFACE STANDARD

INTERLEAVE FACTOR

INTERLEAVING

INTERRUPT

I/O PROCESSOR

ISA

J

K

KILOBYTE

L

LAN

LANDING ZONE

LATENCY

LOGIC

LOOKUP

LOW LEVEL FORMAT

LUN

M

MAGNETIC MEDIA

MAGNETIC RECORDING

MAINFRAME COMPUTER

MAIN MEMORY

MEAN TIME BEFORE FAILURE

MEAN TIME TO REPAIR

MEAN TIME until DATA LOSS

MEDIA

MEDIA DEFECT

MEGABYTE

MEMORY

MICROCOMPUTER

MICROINCH

MICROSECOND

MILLISECOND

MINICOMPUTER

MINI-SLIDER HEADS

MINI WINCHESTER

MIRRORING

MNEMONIC

MODIFIED FREQUENCY MODULATION

MULTIPLE SEGMENT CACHING

MULTIPROCESSOR

MULTITASKING

MULTI-THREADED

MULTI-USER

N

NOISE

NRZ

O

OEM

OFF LINE

OPEN COLLECTOR

OPERATING SYSTEM

OUTPUT

P

PARITY

PARKING

PARTITIONING

PATH

PCMCIA

PERIPHERAL EQUIPMENT

PLATED THIN FILM DISCS

PLATTER

PLUG AND PLAY

POLLING

PRECOMPENSATION

PREVENTIVE MAINTENANCE

PRINTED CIRCUIT BOARD

PROCESSING

PROGRAM

PROTOCOL

Q

R

RADIAL

RAID

RAM DISC

RANDOM ACCESS MEMORY

READ

RECALIBRATE

RECORD

REDUCED WRITE CURRENT

REDUCED WRITECURRENT

RESOLUTION

RLL

ROM

ROTATIONAL SPEED

S

SCA

SCAM

SCATTER/GATHER

SCSI

SECTOR

SECTOR-SLIP

SEEK

SEEK COMPLETE

SEQUENTIAL ACCESS

SERVO TRACK

SETUP

SILICON

SINGLE CONNECTOR ATTACHMENT

SINGLE-ENDED

SKEWING

SMART

SMD

SOFT ERROR

SOFT SECTOR MODE

SOFTWARE

SOFTWARE PATCH

SPINDLE

SPINDLE MOTOR

ST-506/ST-412 INTERFACE

STEP

STEPPER MOTOR

STEP PULSE

STEP TIME

STORAGE CAPACITY

STORAGE DENSITY

STORAGE LOCATION

STORAGE MODULE DRIVE

STRIPE

STRIPING

SYNCHRONOUS DATA

T

TAGGED COMMAND QUEUING

TAPE DRIVE

TERMINATION

THIN FILM HEADS

TPI

TRACK

TRACK ACCESS TIME

TRACK DENSITY

TRACK FOLLOWING SERVO

TRACK PITCH

TRACKS PER INCH

TRACK WIDTH

TRACK ZERO

TRACK ZERO DETECTOR

TRAVAN

TUNNEL ERASE

U

ULTRA-SCSI

UNFORMATTED

UPGRADE PATH

V

VERIFICATION

VOICE COIL MOTOR

VOLATILE

W

WAN

WEDGE SERVO SYSTEM

WIDE SCSI

WINCHESTER DRIVE

WORD

WRITE

WRITE CURRENT

WRITE FAULT

X

XSMD

Y

Z

ZBR (Zone Bit Recording)

ZERO LATENCY READ


ACCESS

    Refers to the process of obtaining data from, or placing data into a disc storage device, register, or RAM. (i.e. accessing a memory location).


ACCESS TIME

    Time required to perform an ACCESS. Usages, e.g.: 1) seek to location on a disc, 2) amount of time to read or write to a memory location, 3) the time to position to the correct location in a disc drive and carry out a read or write operation. ACCESS TIME is often defined as the time from the leading edge of the first step pulse received to SEEK COMPLETE (including settling).


ACTUATOR

    See HEAD POSITIONER. The two basic types of actuators are steppers and voice coils. Open-loop steppers generally cannot achieve tracks per inch (TPI) as high as the closed-loop system because of the lack of feedback on track positioning accuracy. In open-loop stepper drives mechanical tolerances are one of the most significant factors in limiting TPI enhancement.


ADAPTIVE CACHING

    This allows the drive to tune the cache (number of segments and segment size) to best suit the system's needs.


ADDRESS

    (physical) A specific location in memory where a unit record, or sector, of data is stored. To return to the same area on the disc, each area is given a unique address consisting of three components: cylinder, sector, and head. CYLINDER ADDRESSING is accomplished by assigning numbers to the disc's surface concentric circles (cylinders). The cylinder number specifies the radial address component of the data area. SECTOR ADDRESSING is accomplished by numbering the data records (sectors) from an index that defines the reference angular position of the discs. Index records are then counted by reading their ADDRESS MARKS. Finally, HEAD ADDRESSING is accomplished by vertically numbering the disc surfaces, usually starting with the bottom-most disc data surface. For example, the controller might send the binary equivalent of the decimal number 610150 to instruct the drive to access data at cylinder 610, sector 15, and head 0.


ADDRESS MARK

    Two byte address at the beginning of both the ID field and the data field of the track format. The first byte is the "A1" data pattern, the second byte is used to specify either an ID field or a data field.


ADJUSTABLE INTERLEAVE

    Interleaving permits access to more than one memory module, e.g., if one memory module contains odd-numbered address and another even-numbered address, they can both be accessed simultaneously for storage. If the interleave is adjustable, the user may select which ranges or areas are to be accessed each time.


ANSI

    American National Standards Institute


APPLICATION PROGRAM

    A sequence of programmed instructions that tell the computer how to perform an end use task (i.e. accounting, word processing or other work for the computer system user). To use a program, it must first be loaded into MAIN MEMORY from some AUXILIARY MEMORY such as a floppy diskette or hard disk.


AREAL DENSITY

    Bit density (bits per inch, or BPI) multiplied by track density (tracks per inch, or TPI), or bits per square inch of the disc surface. Bit density is measured around a track (circumferential on the disc), and track density is radially measured.


ARRAY

    A group of disk drives which have been combined into a common Hardware Array or Dual-Level Array and appear as a single LSU (Logical Storage Unit).


ASA

    Advanced SCSI Architecture.  Seagate chipset technology streamlines the internal architecture of the disc drive, dramatically increasing drive performance.  Fully compatible with all industry standard SCSI.


ASCII

    American Standard for Coded Information Interchange.


ASME

    American Society of Mechanical Engineers


ASPI

    Advanced SCSI Programming Interface - A protocol developed by Adaptec and supported by host adapter OEM's is used by some SCSI application programs to communicate with SCSI adapters.


ASYNCHRONOUS DATA

    Data sent usually in parallel mode without a clock pulse. Time intervals between transmitted bits may be of unequal lengths.


ATA

    AT Attachment.  This term defines the signal and logical protocol described in X3.221 for IDE (Integrated Drive Electronics) peripherals.


ATAPI

    AT Attachment Packet Interface.  A command protocol used for accessing ATA (IDE) peripheral devices.  Widely used on CD-ROM and Tape Backup units attached to ATA bus..


AT INTERFACE

     Disk drive interface on the IBM PC-at computer and compatibles. Sometimes called the IDE (integrated drive electronics) interface


AUTOMATIC BACK UP OF FILES

    This gives a user the security to make changes to a file without worrying about accidentally destroying it; there is always another copy. One weakness of this method is that files take up twice the room on a disc.


AUXILIARY MEMORY

    Memory other than main memory; generally a mass storage subsystem, it can include disc drives, backup tape drives, controllers and buffer memory. Typically, AUXILIARY MEMORY is non-volatile.


AUXILIARY STORAGE DEVICE

    Devices, generally magnetic tape and magnetic disk, on which data can be stored for use by computer programs. Also known as secondary storage.


AVERAGE ACCESS TIME

    The average track access time, calculated from the end of the CONTROLLER commands to access a drive, to drive "seek complete" time averaged over all possible track locations at the start of ACCESS, and over all possible data track ADDRESSES. Typically, the minimum average access time including carriage settling for open loop actuators is less than 85 ms and for voice coil disc drives is less than 40 ms. As technology improves these times will continue to decrease.


AZIMUTH

    The angular distance in the horizontal plane, usually measured as an angle from true track location.


BACKUP DEVICE

    Disc or tape drive used with a fixed Winchester disc drive to make copies of files or other data for off line storage, distribution or protection against accidental data deletion from the Winchester drive, or against drive failure.


BASE CASTING

    The rigid structure which holds the mechanical sub-assemblies.  Together with the top cover, creates an airtight, extremely clean enclosure.


BACKUP FILE

    File copies made on another removable media device (disc, tape or sometimes a remote hard disc system) and kept to ensure recovery of data lost due to equipment failure, human errors, updates, disasters and the like.


BAUD RATE

    A variable unit of data transmission speed equal to one bit per second.


BCAI

             Byte count after index. Used in defect mapping to indicate the position of defects with relation to index.


BDOS

    The Basic Disk Operating System (BDOS) controls the organization of data on a disk. BDOS is usually pronounced "B-DOS".


BI-DIRECTIONAL BUS

    A bus that may carry information in either direction but not in both simultaneously.


BINARY

    A number system like the decimal numbers, but using 2 as its base and having only the two digits 0 (zero) and 1 (one). It is used in computers because digital logic can only determine one of two states - "OFF" and "ON." Digital data is equivalent to a binary number.


BIOS

    (BASIC INPUT OUTPUT SYSTEM) A collection of information (firmware) that controls communication between the Central Processor and its peripherals.


BIT

    The smallest unit of data. Consists of a single binary digit that can take the value of 0 or 1.


BIT CELL LENGTH

    Physical dimension of the bit cell in direction of recording along the disc circumference of a track.


BIT CELL TIME

    The time required to pass one bit of information between the controller and the drive. Cell time is the inverse of the drive's data rate; nominally 200 nsec for 5 MHz drives.


BIT DENSITY

    Expressed as "BPI" (for bits per inch), bit density defines how many bits can be written onto one inch of a track on a disc surface. It is usually specified for "worst case", which is the inner track. Data is the densest in the inner tracks where track circumferences are the smallest.


BIT JITTER

    The time difference between the leading edge of read and the center of the data window.


BIT SHIFT

    A data recording effect, which results when adjacent 1's written on magnetic discs repel each other. The "worst case" is at the inner cylinder where bits are closest together. BIT SHIFT is also called pulse crowding.


BLOCK

    A group of BYTES handled, stored and accessed as a logical data unit, such as an individual file record. Typically, one block of data is stored as one physical sector of data on a disc drive.


BOOT

    (Short for bootstrap). Transfer of a disc operating system program from storage on diskette or hard disc drive to computer's working memory.


BUFFER

    A temporary data storage area that compensates for a difference in data transfer rates and/or data processing rates between sender and receiver.


BUFFERED SEEK

    A feature of the ST412 INTERFACE. In buffered mode head motion is postponed until a string of step pulses can be sent to the drive. These pulses represent the number of tracks that the head is to be stepped over and are sent much faster than the heads can move. The pulses are saved or buffered then the optimum head movement to the correct track is performed.


BUS

    A length of parallel conductors that forms a major interconnection route between the computer system CPU and its peripheral subsystems. Depending on its design, a bus may carry data to and from peripheral's addresses, power, and other related signals.


BUS MASTERING

    A method of data transfer which allows data to be moved between a peripheral controller and system memory without interaction with the host CPU or a third party DMA controller.  This technique allows the peripheral controller to take control of the system bus, and in the case of EISA, to move data at up to 33MB/s.


BYTE

    A sequence of adjacent BINARY digits or BITS considered as a unit, 8 bits in length. One byte is sufficient to define all the alphanumeric characters. There are 8 BITS in 1 BYTE. The storage capacity of a disc drive is commonly measured in MEGABYTES, which is the total   number of bits storable, divided by eight million.


CACHE HIT

    This occurs when the data requested is already in the cache. A cache hit saves the time of getting the data from the rotating disc; the seek, latency and read times.


CACHE MEMORY

    Cache Memory allows the system to load bytes of data from the hard disc to memory. The system may then refer to memory for information instead of going back to the hard disc, thereby increasing the processing speed.


CAM

    Common Access Method.  Defines a set of software and hardware interfaces which attempt to standardize an operating system's access to peripheral devices.


CAPACITY

    Amount of memory (measured in megabytes) which can be stored in a disc drive. Usually given as formatted (see FORMAT OPERATION).


CARRIAGE ASSEMBLY

    Assembly which holds read/write heads and roller bearings. It is used to position the heads radially by the actuator, in order to access a track of data.


CD-ROM

    Compact Disc Read Only Memory.  A read only storage device  which retrieves up to 660 Mbytes of information from a removable laser disk similar to an audio compact disc.


CENTRAL PROCESSOR UNIT

    (CPU). The heart of the computer system that executes programmed instructions. It includes the arithmetic logic unit (ALU) for performing all math and logic operations, a control section for interpreting and executing instructions, fast main memory for temporary (VOLATILE) storage of an application program and its data.


CHANNEL

    With regards to disk drives, a channel is an electrical  path for the transfer of data and control information between  a disk and a disk controller.  The Primary and Secondary Hard  Drive Port Addresses are an example to two channels.


CHARACTER

    An information symbol used to denote a number, letter, symbol or punctuation mark stored by a computer. In a computer a character can be represented in one (1) byte or eight (8) bits of data. There are 256 different one-byte binary numbers, sufficient for 26 lower case alphas, 26 upper case alphas, 10 decimal digits, control codes and error checks.


CHIP

    An integrated circuit fabricated on a chip of silicon or other semiconductor material, e.g., a CHIP is an integrated circuit, a microprocessor, memory device, or a digital logic device.


CLOCK RATE

    The rate at which bits or words are transferred between internal elements of a computer or to another computer.


CLOSED LOOP

    A control system consisting of one or more feedback control loops in which functions of the controlled signals are combined with functions of the command to maintain prescribed relationships between the commands and the controlled signals.

    This control technique allows the head actuator system to detect and correct off-track errors. The actual head position is monitored and compared to the ideal track position, by reference information either recorded on a dedicated servo surface, or embedded in the inter-sector gaps. A position error is used to produce a correction signal (FEEDBACK) to the actuator to correct the error. See TRACK FOLLOWING SERVO.


CLUSTER SIZE

    Purely an operating system function or term describing the number of sectors that the operating system allocates each time disc space is needed.


CODE

    A set of unambiguous rules specifying the way which digital data is represented physically, as magnetized bits, on a disc drive. One of the objectives of coding is to add timing data for use in data reading. See DATA SEPARATOR, MFM and RLL.


COERCIVITY

    A measurement in units of orsteads of the amount of magnetic energy to switch or "coerce" the flux change (di-pole) in the magnetic recording media.


COMMAND

    1) An instruction sent by the central processor unit (CPU) to a     controller for execution. 2) English-like commands entered by users to select computer programs or functions. 3) A CPU command, which is a single instruction such as "add two binary numbers" or "output a byte to the display screen."


CONSOLE

    (also called CRT or Terminal) A device from which a computer can be operated; often includes a monitor and keyboard.


CONTROLLER

    A controller is a printed circuit board required to interpret data access commands from host computer (via a BUS), and send track seeking, read/write, and other control signals to a disc drive. The computer is free to perform other tasks until the controller signals DATA READY for transfer via the CPU BUS.


CORE

    Originally a computer's main memory was made of ferrite rings (CORES) that could be magnetized to contain one bit of data each. CORE MEMORY is synonymous with MAIN MEMORY. Main memory today is fabricated from CHIPS.


CPU

    See CENTRAL PROCESSOR UNIT


CRASH

    A malfunction in the computer hardware or software, usually causing loss of data.


CYCLIC-REDUNDANCY-CHECK

    (CRC). Used to verify data block integrity. In a typical scheme, 2 CRC bytes are added to each user data block. The 2 bytes are computed from the user data, by digital logical chips. The mathematical model is polynomials with binary coefficients. When reading back data, the CRC bytes are read and compared to new CRC bytes computed from the read back block to detect a read error. The read back error check process is mathematically equivalent to dividing the read block, including its CRC, by a binomial polynomial. If the division remainder is zero, the data is error free.


CYLINDER

    The cylindrical surface formed by identical track numbers on vertically stacked discs. At any location of the head positioning arm, all tracks under all heads are the cylinder. Cylinder number is one of the three address components required to find a specific ADDRESS, the other two being head number and sector number.


DAISY CHAIN

    A way of connecting multiple drives to one controller. The controller drive select signal is routed serially through the drives, and is intercepted by the drive whose number matches. The disc drives have switches or jumpers on them which allow the user to select the drive number desired.


DAT

    Digital Audio Tape.  A storage device that records digital information on magnetic tape measuring 4mm in width.


DATA

    Information processed by a computer, stored in memory, or fed into a computer.


DATA ACCESS

    When the controller has specified all three components of the sector address to the drive, the ID field of the sector brought under the head by the drive is read and compared with the address of the target sector. A match enables access to the data field of the sector.


DATA ADDRESS

    To return to the same area on the disc, each area is given a unique address consisting of the three components: cylinder, head and sector. HORIZONTAL: accomplished by assigning numbers to the concentric circles (cylinders) mapped out by the heads as the positioning arm is stepped radially across the surface, starting with 0 for the outermost circle. By specifying the cylinder number the controller specifies a horizontal or radial address component of the data area. ROTATIONAL: once a head and cylinder have been addressed, the desired sector around the selected track of the selected surface is found by counting address marks from the index pulse of the track. Remember that each track starts with an index pulse and each sector starts with an address mark. VERTICAL: assume a disc pack with six surfaces, each with its own read/write head, vertical addressing is accomplished by assigning the numbers 00 through XX to the heads, in consecutive order. By specifying the head number, the controller specifies the vertical address component of the data area.


DATA BASE

    An organized collection of data stored in DISC FILES, often shared by multiple users., e.g., the Official Airline Guide, which contains up-to-date schedules for all airlines.


DATA BASE MANAGEMENT SYSTEM

    (DBMS) Application program used to manage, access and update files in a data base.


DATA ENCODING

    To use a code such as GCR, MFM, RLL, NZR, etc. to represent characters for memory storage.


DATA FIELD

    The portion of a sector used to store the user's DIGITAL data. Other fields in each sector include ID, SYNC and CRC which are used to locate the correct data field.


DATA SEPARATOR

    Controller circuitry takes the CODED playback pulses and uses the timing information added by the CODE during the write process to reconstruct the original user data record. See NRZ, MFM, and RLL.


DATA TRACK

    Any of the circular tracks magnetized by the recording head during data storage.


DATA TRANSFER RATE

    (DTR). Speed at which bits are sent: In a disc storage system, the communication is between CPU and controller, plus controller and the disc drive. Typical units are bits per second (BPS), or bytes per second, e.g., ST506/412 INTERFACE allows 5 Mbits/sec. transfer rate.  I/O transfer rate is the data rate between the drive and the CPU.  Internal transfer rate is the rate data is written to/from the disc.


DECREASE THE FLYING HEIGHT

    Since the head core is closer to the media surface, the lines of flux magnetize a smaller area. Thus, more bits can be recorded in a given distance, and higher BPI (bits per inch) is achievable.


DEDICATED SERVO SYSTEM

    A complete disc surface is dedicated for servo data.


DEFAULT

    A particular value of a variable which is used by a computer unless specifically changed, usually via an entry made through a software program.


DEFECT-FREE DRIVE

    With a nonintelligent drive and controller (ST412, ESDI) the drive installer has to enter the locations of any sectors with hard errors so the operating system can remember not to read these locations, but rather seek to other sectors which are substitutes for the defective ones.  This relocation or error mapping must be  logged by the operating system and accordingly, adds overhead to the operation of the system.  With an intelligent drive (AT, SCSI) the relocation of sectors with hard errors is done at the factory during the low-level formatting and is monitored by the drive.   In this way, the operating system does not need to keep track of defective sectors (blocks).  The drive appears defect-free to the operating system.  As a result, the installation is much easier.


DENSITY

    Generally, bit recording density. SEE AREAL, BIT and STORAGE DENSITY.


DIGITAL

    Any system that processes digital binary signals having only the values of a 1 or 0. An example of a non-digital signal is an analog signal which continuously varies, e.g., TV or audio.


DIRECT ACCESS

    Generally refers to an AUXILIARY MEMORY device, having all data on-line. E.G., a tape drive without a tape mounted is not direct access, but a WINCHESTER DRIVE is direct access.


DIRECTORY

    A special disc storage area (usually cylinder zero) that is read by a computer operating system to determine the ADDRESSES of the data records that form a DISC FILE.


DISC FILE

    A file of user data, e.g. the company employee list, with all names and information. The data in the file is stored in a set of disc SECTORS (records).


DISC OPERATING SYSTEM

    (DOS). A computer program which continuously runs and mediates between the computer user and the APPLICATION PROGRAM, and allows access to disc data by DISC FILE names.


DISC PACK

    A number of metal discs packaged in a canister for removal from the disc drive. WINCHESTER DRIVES do not have disc packs.


DISC/PLATTER

    For rigid discs, a flat, circular aluminum disc substrate, coated on both sides with a magnetic substance (iron oxide or thin film metal media) for non-VOLATILE data storage. The substrate may consist of metal, plastic, or even glass. Surfaces of discs are usually lubricated to minimize wear during drive start-up or power down.


DISC STORAGE

    Auxiliary memory system containing disc drives.


DISKETTE

    A floppy disc. A plastic (mylar) substrate, coated with magnetic iron oxide, enclosed in a protective jacket.


DMA

    Direct Memory Access.  A means of data transfer between peripheral and host memory without processor intervention.


DOS

      Disc Operating System. a computer program which runs continuously and mediates between the computer user and the application program and allows access to the disc data by disc file names.


DRIVE

    A computer memory device with moving storage MEDIA (disc or tape).


DRIVE SELECT

    An ADDRESS component that selects among a string of drives attached to a disc controller. In the ST 506/412 interface standard, a drive's select code is physically set in the drive to a value between 0 and 3. When the controller activates one of the four drive select code lines in the J1 cable, the selected drive is enabled to respond to access commands from the controller.


DRIVE TYPE

    A number representing a standard configuration of physical parameters (cylinders, heads, and sectors) of a particular type of disc drive.  Each at system bios contains a list of drive types that the system considers "standard types".  These types are not necessarily the same from one bios to the next.  That is, drive type 25 on one bios may represent a drive that has 615 cylinders, 4 data heads, and 17 sectors per track, while type 25 on another bios could be totally different.


DRIVER

    A software routine which receives I/O requests from higher  levels within the operating system and converts those requests  to the protocol required by a specific hardware device.


DROP-IN/DROP-OUT

    Types of disc media defects usually caused by a pin-hole in the disc coating. If the coating is interrupted, the magnetic flux between medium and head is zero. A large interruption will induce two extraneous pulses, one at the beginning and one at the end of the pin-hole (2 DROP-INs). A small coating interruption will result in no playback from a recorded bit (a DROP-OUT).


DRUM

    An early form of rotating magnetic storage, utilizing a rotating cylindrical drum and a multiplicity of heads (one per track). Discs stack more compactly than drums.


E BLOCK

     A single metal piece which joins all the head and slider assemblies to the accuator.  When viewed from the side, this unit looks like an E (if there were three heads.)


ECC

    ERROR CORRECTION CODE: The ECC hardware in the controller used to interface the drive to the system can typically correct a single burst error of 11 bits or less. This maximum error burst correction length is function of the controller. With some controllers the user is allowed to the select this length. The most common selection is 11.


EFFECTIVE SEEK TIME

    Sometimes drives have the needed data in their buffer so the drive will not have to perform a seek to get the data.  If the average seek time of the drive is, say, 20 msec but for half of the data requests the buffer already contains the data, the effective seek time will be about half of 20 msec or 10 msec. It takes almost no time at all (compared to the time it takes to do a seek) for a buffer to deliver its contents, so the average time required drops significantly, in this example by one half.


EISA

    Extended Industry Standard Architecture - An enhanced  version of the PC/AT architecture which provides backwards  compatibility with existing 8 and 16-bit hardware cards.   In addition, EISA supports 32-bit data paths, 33 Mbytes/sec  data transfers from Bus Mastering peripheral cards, automatic  configuration, and a more sophisticated I/O addressing scheme.


ELECTRO-STATIC DISCHARGE

    (ESD) An integrated circuit (CHIP) failure mechanism. Since the circuitry of CHIPs are microscopic in size, they can be damaged or destroyed by small static discharges. People handling electronic equipment should always ground themselves before touching the equipment. Electronic equipment should always be handled by the chassis or frame. Components, printed circuit board edge connectors should never be touched.


ELEVATOR SORTING

    A method of sorting records or cache pages by physical  location on disk so that the information may be written to  disk with less seek and rotational latency.


EMBEDDED SERVO SYSTEM

    Servo data is embedded or superimposed along with data on every cylinder.


ENHANCED IDE

    Enhanced IDE (EIDE) is the market identity given to a collection of four features that are designed to help meet the future needs of the market.  Enhanced IDE features include:  High-capacity addressing of ATA hard drives over 528 Mbytes, fast data transfer rates for ATA hard drives (support for PIO mode 3 up to 13.3 Mbytes per sec), Dual ATA host adapters supporting up to 4 hard disc drives per computer system, nonhard disc ATA peripherals (such as CD-ROM).


ERASE

    To remove previously recorded data from magnetic storage media.


ERROR

    See HARD ERROR and SOFT ERROR.


ESDI

    ENHANCED SMALL DEVICE INTERFACE. A set of specifications for the drives. See also SCSI.


EXECUTE

    To perform a data processing operation described by an instruction or a program in a computer.


FAST ATA

    Fast ATA is the market identity given to disc drives that support the high-speed data transfers resulting from implementing the industry standard protocols:  Programmed input/output (PIO) mode 3, Multiword direct memory access, read/write multiple  sectors per interrupt.


FAST SCSI

    The original SCSI specification defined synchronous data  transmission speeds of up to 5MHz.  By assuming transceivers  which provide tighter timing margins, the SCSI-2 standard  allows synchronous transfers of up to 10MHz.  Devices which  utilize these faster timings are called Fast SCSI devices.


FCI

    (FLUX CHANGES PER INCH): Synonymous with FRPI (flux reversals per inch). In MFM recording 1 FCI equals 1 BPI (bit per inch). In RLL encoding schemes, 1 FCI generally equals 1.5 BPI.


FEEDBACK

    A closed-loop control system, using the head-to-track positioning signal (from the servo head) to modify the HEAD POSITIONER signal (to correctly position the head on the track).


FETCH

    A CPU read operation from MAIN MEMORY and its related data transfer operations.


FIBRE CHANNEL

    FC-AL  Fibre Channel Arbitrated Loop. Open industry standard serial interface for high speed systems.  You can view Fibre Channel simply as a transport vehicle for the supported command set (usually SCSI commands).  In fact, Fibre Channel is unaware of the content of the information being transported.  It simply packs data in frames, transports them to the appropriate devices, and provides error checking.


FIELDS

    1. SOFTWARE: Storage units grouped together to make a record are considered to be a field; e.g., a record might be a company's address; a field in the record might be the company's ZIP code.


FILE

    See DISC FILE. 1. SOFTWARE: A file consists of a group of logically related records that, in turn, are made up of groups of logically related fields.


FILE ALLOCATION TABLE

    FAT: What the operating systems uses to keep track of which clusters are allocated to which files and which are available for use. FAT is usually stored on Track-0.


FILE NAME

    Each file has a name, just like the name on the tab of a file folder. When you want DOS to find a file, you give DOS the file name.


FIRMWARE

    A computer program written into a storage medium which cannot be accidentally erased, e.g., ROM. It can also refer to devices containing such programs.


FIXED DISC

    A disc drive with discs that cannot be removed from the drive by the user, e.g., WINCHESTER DISC DRIVE.


FLEXTURE

     An extremely pliable plastic circuit which connects the accuator assembly electronics to the base casting.  The drive may have access times that move the heads from the outer diameter to the inner as low as 20 milliseconds and this flexture rides along.


FLOPPY DISC

    A flexible plastic disc coated with magnetic media and packaged in a stiff envelope. Comes in 8-inch, 5-1/4-inch, and various sub-4 inch sizes. FLOPPY DISCS generally exhibit slow ACCESS TIME and smaller CAPACITY compared to WINCHESTER DRIVES, but feature removable diskettes.


FLUX CHANGE

    Location on the data track, where the direction of magnetization reverses in order to define a 1 or 0 bit.


FLUX CHANGES PER INCH

    (FCI). Linear recording density defined as the number of flux changes per inch of data track.


FM

    Frequency modulation CODE scheme, superseded by MFM, which is being superseded by RLL.


FORMAT

    The purpose of a format is to record "header" data that organize the tracks into sequential sectors on the disc surfaces. This information is never altered during normal read/write operations. Header information identifies the sector number and also contains the head and cylinder ADDRESS in order to detect an ADDRESS ACCESS error.


FORMATTED CAPACITY

    Actual capacity available to store user data. The formatted capacity is the gross capacity, less the capacity taken up by the overhead data used in formatting the discs. While the unformatted size may be 24 M bytes, only 20 M bytes of storage may actually be available to the user after formatting.


FPI

    (flux changes per inch), also FRPI, the number of Flux Reversals per inch.


FRICTION

    Resistance to relative motion between two bodies in contact; e.g., there is sliding friction between head and disc during drive power up/down.


FULL HEIGHT DRIVE

    Winchester 5-1/4" drive which fits in the same space as full height mini-floppy drive (called the full-height form factor),  which is 3.25 inches high.


G

    A G is a unit of force applied to a body at rest equal to the force exerted on it by gravity. Hard disc drive shock specifications are usually called out in Gs. A shock specification of 40 Gs non-operating means that a drive will not suffer any permanent damage if subjected to a 40 G shock. This is roughly equivalent to a drop of the drive to a hard surface from a distance of 1 inch.


GAP

    1. FORMAT: Part of the disc format. Allows mechanical compensations (e.g. spindle motor rotational speed variations) without the last sector on a track overwriting the first sector. 2. HEAD: An interruption in the permeable head material, usually a glass bonding material with high permeability, allowing the flux fields to exit the head structure to write / read data bits in the form of flux changes on the recording media.


GAP LENGTH

    Narrowing the head gap length achieves higher bit density because the lines of force magnetize a smaller area where writing data in the form of flux changes on the recording media.


GAP WIDTH

    The narrower the gap width, the closer the tracks can be placed. Closer track placement results in higher TPI.


GCR

    GROUP CODE ENCODING. Data encoding method.


GIGABYTE

    1,000,000,000 bytes. (not 1,073,741,824 bytes).  Gbytes


GUARD BAND

    1. Non-recorded band between adjacent data tracks, 2. For closed loop servo drives, extra servo tracks outside the data band preventing the Carriage Assembly from running into the crash stop.


HALF HIGH DRIVE

    A Winchester drive which fits in one half of the space of a full height mini-floppy drive, which is 1.63 inches high.


HARD DISC DRIVE

    Commonly called rigid disc drives, or Winchester disc drives. An electromechanical device that can read rigid discs. Though similar to floppy disc drives, the hard discs have higher bit density and multiple read/write surfaces.


HARD ERROR

    An error that occurs repeatedly at the same location on a disc surface. Hard errors are caused by imperfections in the disc surface, called media defects. When formatting hard disc drives, hard error locations, if known, should be spared out so that data is not written to these locations. Most drives come with a hard error map listing the locations of any hard errors by head, cylinder and BFI (bytes from index - or how many bytes from the beginning of the cylinder).


HARD ERROR MAP

    Also called defect map, bad spot map, media map. Media defects are avoided by deleting the defective sectors from system use, or assigning an alternative track (accomplished during format operation). The defects are found during formatting, and their locations are stored on a special DOS file on the disc, usually on cylinder 0.


HARD SECTOR MODE

     a hardware controlled convention defining a fixed number of sectors per track in any specified zone


HARDWARE

    Computer equipment (as opposed to the computer programs and software).


HDA

    HEAD/DISK ASSEMBLY: A sealed Winchester assembly including discs, heads, filter and actuator assembly.


HDA INTERCONNECT

     Connects the drive electronics to the mechanical assembly.


HEAD

    An electromagnetic device that can write (record), read (playback), or erase data on magnetic media. There are three types: Head Type BPI TPI Areal density Monolithic 8000 450 3.6 X 10 to 6th Composition 12000 1000 12 X 10 to 6th Thin-film 25000 1500 37.5 X 10 to 6th


HEAD CRASH

    A head landing occurs when the disc drive is turned on or off. This function normally does not damage the disc as the disc has a very thin lubricant on it. A head crash occurs when the head and disc damage each other during landing, handling or because a contaminant particle gets between them. Head crash is a catastrophic failure condition and causes permanent damage and loss of data.


HEAD LANDING AND TAKEOFF

    In Winchester drives, the head is in contact with the platter when the drive is not powered. During the power up cycle, the disc begins rotation and an "air bearing" is established as the disc spins up to full RPM (rotations per minute). This air bearing prevents any mechanical contact between head and disc.


HEAD LANDING ZONE

    An area of the disc set aside for takeoff and landing of the Winchester heads when the drive is turned on and off.


HEAD POSITIONER

    Also known as the ACTUATOR, a mechanism that moves the CARRIAGE ASSEMBLY to the cylinder being accessed.


HEAD SLAP

    Similar to a head crash but occurs while the drive is turned off. It usually occurs during mishandling or shipping. Head slap can cause permanent damage to a hard disc drive. See HEAD CRASH.


HELICAL SCAN

     A DAT recording method whereby heads record data at an angle rather than in a straight line (linear) which uses the entire width of the tape.


HEXADECIMAL

    (HEX) A number system based on sixteen, using digits 0 through 9 and letters A through F to represent each digit of the number. (A = 10, B = 11, C = 12, D = 13, E = 14, F = 15).


HOT SPARE

   A spare disk drive which, upon failure of a member of a  redundant disk array, will automatically be used to replace the  failed disk drive.


HOT SWAP

   The operation of removing a failed disk drive, which is a  member of a redundant array, and replacing it with a good drive.


IDE

    Integrated Drive Electronics.   IDE describes a device with  built in ATA protocol electronics.


ID FIELD

    The address portion of a sector. The ID field is written during the Format operation. It includes the cylinder, head, and sector number of the current sector. This address information is compared by the disc controller with the desired head, cylinder, and sector number before a read or write operation is allowed.


IMAGE-BACKUP MODE

    Used with streaming tape, image-backup mode records an exact copy of the disc, including unused sectors and bad tracks.


INDEX

    (PULSE): The Index Pulse is the starting point for each disc track. The index pulse provides initial synchronization for sector addressing on each individual track.


INDEX TIME

    The time interval between similar edges of the index pulse, which measures the time for the disc to make one revolution. This information is used by a disc drive to verify correct rotational speed of the media.


INPUT

    1. Data entered into the computer to be processed. 2. User commands or queries.


INPUT/OUTPUT

    The process of entering data into or removing data from a computer system.


INTELLIGENT PERIPHERAL

    A peripheral device that contains a processor or microprocessor to enable it to interpret and execute commands, thus relieving the computer for other tasks.


INTERFACE

    The protocol data transmitters, data receivers, logic and wiring that link one piece of computer equipment to another, such as a disc drive to a controller or a controller to a system bus. Protocol means a set of rules for operating the physical interface, e.g., don't read or write before SEEK COMPLETE is true.


INTERFACE CONNECTOR

     Attachment point for the interface ribbon cable.  40 pins for ATA; 50 pins for SCSI Narrow etc.  Care must always be taken to orient pin-1 on the cable to pin-1 on the drive.  Pin-1 on the cable is usually marked.  The cable should never be removed when power is applied to the drive.


INTERFACE STANDARD

    The interface specifications agreed to by various manufacturers to promote industry-wide interchangeability of products such as disc drives and controllers. An interface standard generally reduces product costs, allows buyers to purchase from more than one source, and allows faster market acceptance of new products. (See ST-506/412, SCSI, ESDI)


INTERLEAVE FACTOR

    The ratio of physical disc sectors skipped for every sector actually written.


INTERLEAVING

    The interleave value tells the controller where the next logical sector is located in relation to the current sector. For example, an interleave value of one (1) specifies that the next logical sector is physically the next sector on the track. Interleave of two (2) specifies every other physical sector, three (3) every third sector and so on. Interleaving is used to improve the system throughout based on overhead time of the host software, the disc drive and the controller; e.g., if an APPLICATION PROGRAM is processing sequential logical records of a DISC FILE in a CPU time of more than one second but less than two, then an interleave factor of 3 will prevent wasting an entire disc revolution between ACCESSES.


INTERRUPT

    A signal, usually from a peripheral device to a CPU, to signify that a commanded operation has been completed or cannot be completed.


I/O PROCESSOR

    Intelligent processor or controller that handles the input/output operations of a computer.


ISA

    Industry Standard Architecture - The name given to the  original IBM PC/AT 16-bit bus architecture.


KILOBYTE

    (KBYTE). 1) 1024 bytes (two to the tenth power); 2) 1000 bytes; 1024 bytes is the normal definition.


LABEL

    Basic information about the drive: part number, model number, serial number, firmware revision, production lot number, bar code, jumper settings, drive geometry specifications.  Voids warranty if removed.


LAN

    Local Area Network


LANDING ZONE

    The landing zone is where the read/write head sits when it is not active. If the system features a dedicated landing zone, the head will rest on the same track each time.


LATENCY

    (ROTATIONAL) The time for the disc to rotate the accessed sector under the head for read or write. On the average, latency is the time for half of a disc revolution.


LOGIC

    Electronic circuitry that switches on and off ("1" and "0") to perform digital operations.


LOOKUP

    The action of obtaining and displaying data in a file.


LOW LEVEL FORMAT

     The first step in preparing a drive to store information after physical installation is complete. The process sets up the "handshake" between the drive and the controller. In an XT system, the low level format is usually done using DOS's debug utility. In an AT system, AT advanced diagnostics is typically used. Other third party software may also be used to do low level format on both XTs and ATs.


LUN

     Logical Unit Number


MAGNET

     Two very strong magnets are used in conjunction with the voice coil assembly to position the heads over the data tracks.


MAGNETIC MEDIA

    A disc or tape with a surface layer containing particles of metal, or metallic oxides that can be magnetized in different directions to represent bits of data, sounds or other information.


MAGNETIC RECORDING

    The use of a head, recording head, recording media (tape or disc), and associated electronic circuitry for storing data or sound or video.


MAINFRAME COMPUTER

    A large computer generally found in data processing centers. See MINICOMPUTER AND MICROCOMPUTER.


MAIN MEMORY

    Random-access memory used by the CPU for storing program instructions and data currently being processed by those instructions. See RANDOM-ACCESS MEMORY.


MEAN TIME BEFORE FAILURE

     (MTBF). The average time before a failure will occur. This is not a warranty measurement. MTBF is a calculation taking into consideration the MTBF of each component in a system and is the statistical average operation time between the start of a unit's lifetime and its time of a failure. After a product has been in the field for a few years, the MTBF can become a field proven statistic.


MEAN TIME TO REPAIR

    (MTTR) The average time to repair a given unit. Limited to a qualified technician with proper equipment.


MEAN TIME until DATA LOSS

    (MTDL)  The average time from startup until a component failure causes a permanent loss of user data in a disk array.  The concept is similar to MTBF, but takes into account the possibility   that RAID redundancy can protect against loss due to single component failures.


MEDIA

    The magnetic layers of a disc or tape. See DISC/PLATTER.


MEDIA DEFECT

    A media defect can cause a considerable reduction of the read signal (missing pulse or DROP-OUT), or create an extra pulse (DROP-IN). See HARD ERROR MAP.


MEGABYTE

    One million bytes (exactly 1,000,000 bytes). Abbreviation: MB or Mbyte. (not 1,048,576 bytes)


MEMORY

    Any device or storage system capable of storing and retrieving information. See also STORAGE DEFINITIONS.


MICROCOMPUTER

    A computer whose central processor unit (CPU) is manufactured as a chip or a small number of chips. Personal computers are examples of microcomputers.


MICROINCH

    One-millionth of an inch.


MICROSECOND

    One-millionth of a second.


MILLISECOND

    (Msec)  One-thousandth of a second.


MINICOMPUTER

    A computer midway in size and processing power between a MICROCOMPUTER and a MAINFRAME COMPUTER.


MINI-SLIDER HEADS

    Manganese/Zinc Ferrite Winchester heads. Smaller, lighter heads with stiffer load arms than standard Winchester heads. They allow smaller flying heights, and therefore higher bit and track density, if they are made with smaller and narrower gaps.


MINI WINCHESTER

    A Winchester disc drive with 5-1/4 or 3-1/2 inch diameter discs.


MIRRORING

     A popular term for RAID-1.  A method of creating disk-fault  tolerance by redundantly storing information on pairs of drives.


MNEMONIC

    A shortened code for a longer term.


MODIFIED FREQUENCY MODULATION

    (MFM). A method of recording digital data, using a particular CODE to get the flux reversal times from the data pattern. MFM recording is self-clocking because the CODE guarantees timing information for the playback process. The controller is thus able to synchronize directly from the data. This method has a maximum of one bit of data with each flux reversal. (See NRZ, RLL).


MOUNTING HOLES

    Attachment points for mounting the drive to the system enclosure.  Also, may be used to attach drive rails which are commonly used for sliding a drive into a drive bay.  Frame kits that adapt 3.5 to 5.25 drive bays may attach to these holes.  Screws should be made barely tight because over tightening the mounting screws may cause the drive to flex and go off track.


MULTIPLE SEGMENT CACHING

    This allows the user to divide the cache into segments so that different blocks of data can be cached simultaneously and subsequent commands will have a better probability of a cache hit

.


MULTIPROCESSOR

    A computer containing two or more processors.


MULTITASKING

    The ability of a computer system to execute more than one program or program task at a time.


MULTI-THREADED

    Having multiple concurrent or pseudo-concurrent execution  sequences.  Used to describe processes in computer systems.   Multi-threaded processes are one means by which throughput  intensive applications can make maximum use of a disk array to  increase I/O performance.


MULTI-USER

    The ability of a computer system to execute programs for more than one user at a time.


NOISE

    Extraneous electronic signals that interfere with information signals (similar to radio static or TV interference). Sources of noise in computers can be power supplies, ground loops, radio interference, cable routing, etc.


NRZ

    NON-RETURN TO ZERO 1) User digital data bits; 2) A method of magnetic recording of digital data in which a flux reversal denotes a one bit, and no flux reversal a zero bit, NRZ recording requires an accompanying synchronization clock to define each cell time unlike MFM or RLL recording). No Seagate drives use NRZ recording methods.


OEM

    Original Equipment Manufacturer, such as Hewlett Packard, IBM or Apple.


OFF LINE

    Processing or peripheral operations performed while not connected to the system CPU via the system BUS.


OPEN COLLECTOR

    A type of output structure found in certain bipolar logic families. The device has a transistor that enables it to output to a low voltage level only. When the device is inactive, an external resistor holds the device output at a high voltage level.


OPERATING SYSTEM

    An operating system is a program which acts as an interface between the user of a computer and the computer hardware. The purpose of the operating system is to provide an environment in which a user may run programs. The goal of the operating system is to enable the user to conveniently use the computer's resources such as the CPU, memory, storage devices and printers.


OUTPUT

    Processing data being transferred out of the computer system to peripherals (i.e. disc, printer, etc.). This includes responses to user commands or queries.


PARITY

    A computer data checking method using an extra bit in which the total number of binary 1's (or 0's) in a byte is always odd or always even; thus, in an odd parity scheme, every byte has eight bits of data and one parity bit. If using odd parity and the number of 1 bits comprising the byte of data is not odd, the 9th or parity bit is set to 1 to create the odd parity. In this way, a byte of data can be checked for accurate transmission by simply counting the bits for an odd parity indication. If the count is ever even, an error is indicated.


PARKING

    Parking the disc drive heads means the recording heads are moved so that they are not over the platter's data area. Many drives have an auto-park feature where the heads are automatically parked when power to the drive is shut off. Other drives require the user to run some kind of parking software to park the heads.


PARTITIONING

    Method for dividing an area on disc drive for use by more than one disc operating system or for dividing large disc drives into areas which the File Allocation Table (FAT) can deal with when in use. The current IBM DOS maximum partition size is 32 MB for the XT and AT. This limit can be overridden using partitioning software written expressly for this purpose.


PATH

    The DOS term "path" has three definitions and each definition involves directories. A PATH may be defined as: 1) the names of the chain of directories leading to a file; 2) the complete file or directory name; 3) a DOS command.


PCMCIA

    This is the acronym for the Personal Computer Memory Card  Industry Association, a trade association responsible for the promotion of removable device interfaces for a variety of products including memory, modems, disks, etc.


PERIPHERAL EQUIPMENT

    Auxiliary memory, displays, printers, disc drives, and other equipment usually attached to computer systems' CPU by controllers and cables (they are often packaged together in a desktop computer).


PLATED THIN FILM DISCS

    Magnetic disc memory media having its surface plated with a thin coating of a metallic alloy instead of being coated with oxide.


PLATTER

    The round magnetic disc surfaces used for read/write operations in a hard disc system.


PLUG AND PLAY

    A.auto detect method used by the system BIOS to identify and configure peripheral devices.  IDs, IRQs and port addresses are set on the fly at boot time.


POLLING

    A technique that discerns which of several devices on a connection is trying to get the processor's attention.


POWER PLUG

     4-pin power supply Molex type connector delivers +5V, +12V and two grounds.  Some drives have an optional 3-pin connector.  Some drives have the drive power delivered through the interface cable.


PRECOMPENSATION

    Applied to write data by the controller in order to partially alleviate bit shift which causes adjacent 1's written on magnetic media physically to move apart. When adjacent 1's are sensed by the controller, precompensation is used to write them closer together on the disc, thus fighting the repelling effect caused by the recording. Precompensation is only required on some oxide media drives.


PREVENTIVE MAINTENANCE

    A method of doing a scheduled routine observation or exchanging a part, prior to a breakdown of a piece of equipment.


PRINTED CIRCUIT BOARD

    (PCB) The circuit board with the chips attached to a drive.


PROCESSING

    (DATA PROCESSING) The process of computer handling, manipulating, and modifying data such as arithmetic calculation, file lookup and updating, or word processing.


PROGRAM

    A sequence of instructions stored in memory and executed by a processor or microprocessor. See also APPLICATIONS PROGRAMS.


PROTOCOL

    A set of conventions governing the format of messages to be exchanged within a communications system.


RADIAL

    A way of connecting multiple drives to one controller. In radial operation, all output signals are active even if the drive is not selected. Also see DAISY CHAIN.


RAID

    Redundant Array of Inexpensive Disks - A method of  combining hard disks into one logical storage unit which offers  disk-fault tolerance and can operate at higher throughput levels  than a single hard disk.


RAM DISC

    A DOS operation, where part of the computer's random access memory is used to simulate a disk drive. The RAM disc and its contents will disappear if power is lost or DOS MAIN MEMORY is restarted. RAM is far faster (microseconds ACCESS TIME) than discs (milliseconds), so APPLICATIONS PROGRAMS which access the disk run faster.


RANDOM ACCESS MEMORY

    (RAM) Memory where any location can be read from or written to in a random order. Random access memory usually refers to volatile memory where the contents are lost when power is removed. The user addressable memory of a computer is random access memory.


READ

    To access a storage location and obtain previously recorded data.


RECALIBRATE

    Return to Track Zero. A common disc drive function in which the heads are returned to track 0 (outermost track).


RECORD

    1. Software. A record is a single unit made up of logically related fields.


REDUCED WRITE CURRENT

    A signal input (to some older drives) which decreases the amplitude of the write current at the actual drive head. Normally this signal is specified to be used during inner track write operations to lessen the effect of adjacent bit "crowding." Most drives today provide this internally and do not require controller intervention.


REDUCED WRITECURRENT

    To minimize the effects of peak shift, on some drives, the magnitude of the write current is reduced on some of the innermost tracks.  When installing a drive in a system, the number requested is the first track number to begin the area of reduced write current. that track and all subsequent tracks will be written with reduced write current.


RESOLUTION

    With regards to magnetic recording, the band width (or frequency response) of the recording heads.


RLL

    (RUN LENGTH LIMITED CODE). 1) A method of recording digital data, whereby the combinations of flux reversals are coded/decoded to allow greater than one (1) bit of information per flux reversal. This compaction of information increases data capacity by approximately 50 percent; 2) a scheme of encoding designed to operate with the ST412 interface at a dial transfer rate of 7.5 megabit/sec. The technical name of the specific RLL CODE used is "two, seven".


ROM

    (READ ONLY MEMORY) A chip that can be programmed once with bits of information. This chip retains this information even if the power is turned off. When this information is programmed into the ROM, it is called burning the ROM.


ROTATIONAL SPEED

    The speed at which the media spins. On a 5-1/4 or 3-1/2" Winchester drive it is usually 3600 rpm.


SCA

    BlindMate Single Connector Attachment.  All disc I/O and configurations have been incorporated within an 80-pin single connector that supports both 8-bit and 16-bit parallel SCSI with Singled-Ended or Differential options.  Used in hot swap systems, drive usually plugs into a backplane..


SCAM

    SCSI Configure Auto-Magically. A form of Plug and Play developed for SCSI peripherals.  SCSI IDs are set boot time.


SCATTER/GATHER

    A feature which allows data to be transferred to or from  multiple discontiguous areas of host computer memory with a  single I/O command.


SCSI

    Small Computer Systems Interface. The current "high end" CPU-to-drive interface.


SECTOR

    A sector is a section of a track whose size is determined by formatting. When used as an address component, sector and location refer to the sequence number of the sector around the track. Typically, one sector stores one user record of data. Drives typically are formatted from 17 to 26 sectors per track. Determining how many sectors per track to use depends on the system type, the controller capabilities and the drive encoding method and interface.


SECTOR-SLIP

    Sector-slip allows any sector with a defect to be mapped and bypassed. The next contiguous sector is given that sector address.


SEEK

    The radial movement of the heads to a specified track address.


SEEK COMPLETE

    An ST506 interface signal from drive to controller which indicates that read/write heads have settled on the desired track and completed the seek.


SEQUENTIAL ACCESS

    Writing or reading data in a sequential order, such as reading data blocks stored one after the other on magnetic tape (the opposite of random access).


SERVO TRACK

    A prerecorded reference track on the dedicated servo surface of a closed-loop disc drive. All data track positions are compared to their corresponding servo track to determine "off-track/on-track" position.

    Information written on the servo surface that the electronics of the drive uses to position the heads over the correct data track. This information is written on the drive by the servo track writer.


SETUP

            Program used by at type computers to store configuration in CMOS.  This program is sometimes found in the system bios and can be accessed from the keyboard.  On other systems, the program is on a diskette.


SILICON

    Semiconductor substrate material generally used to manufacture micro- processors and other integrated circuit chips.


SINGLE CONNECTOR ATTACHMENT

    The single-connector attachment incorporates all of the disc functionality and configurations into a single point of connection. This is a cost-effective solution for multi-disc and removable applications requiring semi-automated connections and installations. Used primarily with backplanes.


SINGLE-ENDED

    An electrical signal protocol which transmits information  through changes in voltage.  Single-ended SCSI uses standard  TTL signal-and-ground pairs to transmit information over the  SCSI bus.


SKEWING

    Some low-level formatting routines may ask for a Head and/or Cylinder Skew value. The value will represent the number of sectors being skewed to compensate for head switching time of the drive and/or track-to-track seek time allowing continuous read/write operation without losing disk revolutions.


SLIDER ASSEMBLY

     Includes the magnetic recording head, the slider (which lands on the media when the platters stop spinning), and the head arm.  The arm is aerodynamically designed to fly at a very low height above the media.  The spinning media creates air motion within the enclosure which is used to fly the heads.


SMART

     Self-Monitoring, Analysis and Reporting Technology can help prevent data loss and unscheduled computer downtime.  It provides advanced warning of certain types of drive failures, allowing the user of data-management software to backup the data.  Even though Seagate offers this technology, it is not supported by all system manufacturers or hard drive distributors and requires third party software..


SMD

    SURFACE MOUNTED DEVICE. A CHIP in a smaller integrated surface package, without connection leads.


SOFT ERROR

    A bit error during playback which can be corrected by repeated attempts to read.


SOFT SECTOR MODE

    A convention, defined by software, of setting a variable numbers of sectors per track in direct relationship to the drive's fci rating in regards to the area of media that passes beneath the head. This schema takes advantage of the fact that, in actual surface area, the outermost tracks are longer than the innermost.


SOFTWARE

    APPLICATION PROGRAMS, disc operating systems and other programs (as opposed to HARDWARE). The instructions or programs, usually stored on floppy or hard discs, which are used to direct the operations of a computer, or other hardware.


SOFTWARE PATCH

    Software modification which allows or adds functions not otherwise available using the standard software program.


SPINDLE

    The rotating hub structure to which the discs are attached.


SPINDLE MOTOR

    The spindle motor is the electro-mechanical part of the disc drive that rotates the platters.


ST-506/ST-412 INTERFACE

    One of several industry standard interfaces between a hard disc and hard disc controller. In the ST-506/ST-412 interface, the "intelligence" is on the controller rather than the drive. SEE INTERFACE STANDARD, ESDI AND SCSI.


STEP

    An increment or decrement of the head positioning arm to move the heads in or out, respectively, one track from their current position. In buffered mode (open loop drives), the head motion is postponed until the last of a string of step pulses has been received.


STEPPER MOTOR

    The stepper motor is the electro-mechanical part of the disc drive that positions the heads by step pulse on the tracks of the disc to read and write data.


STEP PULSE

    The pulse sent from the controller to the stepper motor on the step interface signal line to initiate a step operation.


STEP TIME

    The time required by the drive to step the heads from the current cylinder position to a target cylinder.


STORAGE CAPACITY

    Amount of data that can be stored in a memory, usually specified in kilobytes (KB) for main memory and floppy disc drives and megabytes (MB) for hard disc and tape drives.


STORAGE DENSITY

    Usually refers to recording density (BPI, TPI, or their product, AREAL DENSITY).


STORAGE LOCATION

    A memory location, identified by an ADDRESS, where information is to be read or written.


STORAGE MODULE DRIVE

     (SMD). Storage module drive interface. An interface, used in larger disc drives, e.g., 14" drives.


STRIPE

    A contiguous region of disk space.  Stripes may be as small  as one sector or may be composed of many contiguous sectors.


STRIPING

    Also called RAID-0, A method of distributing data evenly  across all drives in an array by concatenating interleaved  stripes from each drive.


SYNCHRONOUS DATA

    Data sent, usually in serial mode, with a clock pulse.


TAGGED COMMAND QUEUING

    The drive can accept commands while processing a current  command and reorder the commands to save seek time.  Tagged command queuing sets the priorities for the reordering.  To utilize these advanced features, the host adapter must be  SCSI-2 compatible.  If the host adapter is not SCSI-2  compatible, the disc drive will still work, but not all of the features will be implemented.


TAPE DRIVE

    A sequential access memory device whose magnetic media is tape in a cassette, reel or continuous loop.


TERMINATION

    A method of matching the transmission impedance of a  electrical bus so as to eliminate signal reflections from the  physical ends of the bus.


THIN FILM HEADS

    A read/write head whose read/write element is deposited using integrated circuit techniques rather than being manually fabricated by grinding ferrite and hand winding coils.


TOP COVER

    Together with the base casting, creates an airtight, extremely clean environment.  Any attempt to remove this top cover outside of a clean room will immediately contaminate and ruin a disc drive.  Needless to say, any warranty is immediately voided if the top is removed.


TPI

    Tracks per inch.


TRACK

    The radial position of the heads over the disc surface. A track is the circular ring traced over the disc surface by a head as the disc rotates under the heads.


TRACK ACCESS TIME

    See AVERAGE ACCESS TIME.


TRACK DENSITY

    See TPI.


TRACK FOLLOWING SERVO

    A closed-loop positioner control system that continuously corrects the position of the disc drive's heads by utilizing a reference track and a feedback loop in the head positioning system. See also CLOSED LOOP.


TRACK PITCH

    Distance from centerline to centerline of adjacent tracks (TPI divided into 1.0).


TRACKS PER INCH

    Track density, number of tracks per inch.


TRACK WIDTH

    Width of data track. Also called core width of Read/Write Head.


TRACK ZERO

    Track zero is the outermost data track on a disc drive. In the ST 506 INTERFACE, the interface signal denotes that the heads are positioned at the outermost cylinder.


TRACK ZERO DETECTOR

    An obsolete technology that RECALIBRATES by sensing when infrared beams between a LED and infrared sensitive photo-transistor are blocked by the track zero interrupter (TZI).


TRAVAN

     Travan is a subset of the QIC minicartridge format.  At 0.315 inches, Travan is slightly wider than standard QIC.


TUNNEL ERASE

    An erase scheme where both sides of the recorded data is erased when writing data to eliminate track to track interference. This is primarily used on floppy disk drives.


ULTRA-SCSI

    Doubles the bandwidth of SCSI Fast.  It provides 8-bit (SCSI Narrow) data rates of 20 Mbytes per second and 16-bit (SCSI Wide) data rates of 40 Mbytes per second.  Shorter cables may be required.  Formerly known as Fast-20.


UNFORMATTED

    (Capacity) Drive byte capacity before formatting. Maximum capacity of a disc drive before formatting = (bits per track) x number of heads x # of cylinders. See MEGABYTE.


UPGRADE PATH

    Generally, with disc products, a family having multiple products with varying capacities such that the system storage capacity can increase with changing application requirements simply using a different disc drive within the product family.


VERIFICATION

    This feature lets the computer go back and read what it just wrote to disc to ensure the data was written correctly.


VOICE COIL MOTOR

    An electro-magnetic positioning motor in the rigid disk drive similar to that used in audio speakers. A wire coil is placed in a stationary magnetic field. When current is passed through the coil, the resultant flux causes the coil to move. In a disc drive, the CARRIAGE ASSEMBLY is attached to the voice coil motor. Either a straight line (linear) or circular (rotary) design may be employed to position the heads on the disc's surface.


VOLATILE

    Memory that will be erased if power is lost. Typically, MAIN MEMORY is volatile, and AUXILIARY MEMORY is non-volatile and can be used for permanent (but changeable at will) storage of programs and data.


WAN

    Wide Area Network


WEDGE SERVO SYSTEM

    A certain part of each CYLINDER contains servo positioning data. Gap spacing between each sector contains servo data to maintain position on that cylinder.


WIDE SCSI

    The Wide SCSI interface provides a 16-bit wide SCSI bus, as compared to the narrow 8-bit SCSI bus.  The wider 16-bit bus provides a transfer rate of 20 Mbytes per second compared to 10 Mbytes per second with Fast SCSI 8-bit interface.


WINCHESTER DRIVE

    A disc drive with a Winchester head and non-removable (fixed) discs sealed in a contaminant-free housing.


WORD

    Number of bits processed in parallel (in a single operation) by a CPU. Standard word lengths are 8, 16, 32, and 64 (1, 2, 4 or 8 bytes).


WRITE

    To access a storage location and store data on the magnetic surface.


WRITE CURRENT

    The optimum HEAD write current necessary to saturate the magnetic media in a cell location.


WRITE FAULT

    Disc drive interface signal to the controller used to inhibit further writing when a condition exists in the drive which, if not detected, would cause improper writing on the disc.


WRITE IMMEDIATE

    With host-controlled write immediate, status is returned when data is transferred to the drive buffer instead of waiting until the data is written to the media.  The seek, latency, and write times are cut out of the total command completion as seen by the host.


XSMD

    Extended storage module drive interface.


ZBR (Zone Bit Recording)

    Trademark of Seagate Technology. A media optimization technique where the number of sectors per track is dependent upon the cylinder circumference. E.G. tracks on the outside cylinders have more sectors per track than the inside cylinders. The ZBR format is only done at the factory. These drives should not be low-level formatted by the end-user.


ZERO LATENCY READ

    This reduces the delay in transferring data from the drive to  the initiator due to rotational latency delays.  Data is read out of order from the disc and transferred to the host where the  requested order is restored.


ST-41201K
ST-41201K (97509-12G) Elite-1.2

                             ST-41201K

                        97509-12G Elite-1.2

       UNFORMATTED CAPACITY _____________________1,200

       FORMATTED CAPACITY (xx SECTORS) __________

       AVERAGE SECTORS PER TRACK (with spares)___

       ACTUATOR TYPE ____________________________STRAIGHT ARM

       TRACKS ___________________________________

       CYLINDERS ________________________________2,101

       HEADS ____________________________________17

       DISCS (5.25 in) __________________________10

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______24

       EXTERNAL TRANSFER RATE (mbytes/sec) ______3

       SPINDLE SPEED (RPM) ______________________5,400

       AVERAGE LATENCY (mSEC) ___________________5.56

       BUFFER ___________________________________

       INTERFACE ________________________________IPI-2

       BYTES PER TRACK __________________________33,600

       SECTORS PER DRIVE ________________________

       BYTES PER CYLINDER _______________________571,200

       TPI (TRACKS PER INCH) ____________________1,801

       BPI (BITS PER INCH) ______________________17,591-33,344

       AREAL DENSITY (MBits/sq in) ______________60.0

       AVERAGE ACCESS (ms) ______________________11.5

       SINGLE TRACK SEEK (ms) ___________________1.7

       MAX FULL SEEK (ms) _______________________22.5

       MTBF (power-on hours) Class A Room _______250,000

       MTBF (power-on hours) Office _____________150,000

       POWER DISSIPATION (watts) ________________50

       POWER REQUIREMENTS:

                           TYPICAL (watts) ______44

                           IDLE (watts) __ ______40

       USER MANUAL PART NUMBER __________________83327320

       REFERENCE MANUAL PART NUMBER _____________83327330

       OTHER ____________________________________Dual Access,

        Synchronized Spindles, Sweep Cycle Capability

       Physical:

                        Height (inches/mm):     3.25/82.6

                        Width  (inches/mm):     5.57/146.1

                        Depth  (inches/mm):     9.90/252.5

                        Weight    (lbs/kg):     9/4.1

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/23/91)


ST-41800K
ST-41800K  Elite 2

                             ST-41800K

                            Elite 2

       UNFORMATTED CAPACITY _____________________1,986

       FORMATTED CAPACITY (xx SECTORS) __________

       AVERAGE SECTORS PER TRACK (with spares)___

       ACTUATOR TYPE ____________________________STRAIGHT ARM

       TRACKS ___________________________________

       CYLINDERS ________________________________2,627

       HEADS ____________________________________18

       DISCS (5.25 in) __________________________11

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______60

       EXTERNAL TRANSFER RATE (mbyte/sec) _______7.5

       SPINDLE SPEED (RPM) ______________________5,400

       AVERAGE LATENCY (mSEC) ___________________5.55

       BUFFER ___________________________________

       INTERFACE ________________________________IPI-2

       BYTES PER TRACK __________________________84,000

       SECTORS PER DRIVE ________________________

       BYTES PER CYLINDER _______________________756,000

       TPI (TRACKS PER INCH) ____________________2,250

       BPI (BITS PER INCH) ______________________37,836

       AVERAGE ACCESS (ms) ______________________11.5

       SINGLE TRACK SEEK (ms) ___________________1.7

       MAX FULL SEEK (ms) _______________________22.5

       MTBF (power-on hours) Class A Room _______250,000

       MTBF (power-on hours) Office _____________150,000

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS:

                           +12V START-UP (amps) _

                           +12V TYPICAL (amps) __

                           +5V START-UP (amps) __

                           +5V TYPICAL (amps) ___

                           TYPICAL (watts) ______35

                           IDLE (watts) __ ______31

       USER MANUAL PART NUMBER __________________

       OTHER ____________________________________Dual Access,

        Synchronized Spindles, Sweep Cycle Capability

       Physical:

                        Height (inches/mm):     3.25/82.6

                        Width  (inches/mm):     5.75/146.1

                        Depth  (inches/mm):     8.5/216

                        Weight    (lbs/kg):     7.8/3.6

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/23/91)


ST-43200K
ST-43200K  Elite 3 2HP

                             ST-43200K

                            Elite 3 2HP

       UNFORMATTED CAPACITY _____________________3,338

       FORMATTED CAPACITY (xx SECTORS) __________

       AVERAGE SECTORS PER TRACK (with spares)___

       ACTUATOR TYPE ____________________________STRAIGHT ARM

       TRACKS ___________________________________

       CYLINDERS ________________________________2,627

       HEADS ____________________________________20

       DISCS (5.25 in) __________________________11

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______72 to 108

       INTERNAL TRANSFER RATE (mbyte/sec) _______12.0 avg

       EXTERNAL TRANSFER RATE (mbyte/sec) _______25

       SPINDLE SPEED (RPM) ______________________5,400

       AVERAGE LATENCY (mSEC) ___________________5.55

       BUFFER ___________________________________

       INTERFACE ________________________________IPI-2

       BYTES PER TRACK __________________________100,800 to 151,200

       SECTORS PER DRIVE ________________________2,984,520

       BYTES PER CYLINDER _______________________1,008,000 to 1,512,000

       TPI (TRACKS PER INCH) ____________________

       BPI (BITS PER INCH) ______________________

       AVERAGE ACCESS (ms) ______________________11.5

       SINGLE TRACK SEEK (ms) ___________________1.7

       MAX FULL SEEK (ms) _______________________22.5

       MTBF (power-on hours) Class A Room _______250,000

       MTBF (power-on hours) Office _____________150,000

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS:

                           +12V START-UP (amps) _

                           +12V TYPICAL (amps) __

                           +5V START-UP (amps) __

                           +5V TYPICAL (amps) ___

                           TYPICAL (watts) ______35

                           IDLE (watts) __ ______31

       USER MANUAL PART NUMBER __________________

       OTHER ____________________________________Dual Access,

        Synchronized Spindles, Sweep Cycle Capability,

        Writes/Reads Two Heads Parallel

       Physical:

                        Height (inches/mm):     3.25/82.6

                        Width  (inches/mm):     5.75/146.1

                        Depth  (inches/mm):     8.5/216

                        Weight    (lbs/kg):     7.8/3.6

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/23/91)


ST-6515K
ST-6515K (97159-500) FSD-515

                             ST-6515K

                        97159-500 FSD-515

       UNFORMATTED CAPACITY _____________________516

       FORMATTED CAPACITY (xx SECTORS) __________

       AVERAGE SECTORS PER TRACK (with spares)___

       ACTUATOR TYPE ____________________________

       TRACKS ___________________________________

       CYLINDERS ________________________________711

       HEADS ____________________________________24

       DISCS (9 in) _____________________________7

       MEDIA TYPE _______________________________OXIDE

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       EXTERNAL TRANSFER RATE (mbytes/sec) ______1.80

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________

       INTERFACE ________________________________IPI-2

       BYTES PER TRACK __________________________30,240

       SECTORS PER DRIVE ________________________

       BYTES PER CYLINDER _______________________302,400

       TPI (TRACKS PER INCH) ____________________960

       BPI (BITS PER INCH) ______________________9,167-15,040

       AREAL DENSITY (MBits/sq in) ______________14.6

       AVERAGE ACCESS (ms) ______________________18

       SINGLE TRACK SEEK (ms) ___________________5

       MAX FULL SEEK (ms) _______________________40

       MTBF (power-on hours) Class A Room _______

       MTBF (power-on hours) Office _____________30,000

       POWER DISSIPATION (watts) ________________225

       USER MANUAL PART NUMBER __________________

       OTHER ____________________________________Dual Access,

        Sweep Cycle Capability, Remote/Integral Power Supply

       Physical:

                        Height (inches/mm):     10.20/259

                        Width  (inches/mm):     8.50/216

                        Depth  (inches/mm):     30.0/757

                        Weight    (lbs/kg):     82/36.4

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/23/91)


ST-8100K

                             ST-8100K

                          Solid State Disc

       UNFORMATTED CAPACITY _____________________100

       FORMATTED CAPACITY (xx SECTORS) __________

       SECTORS PER TRACK (Logical)_______________1-256

       CYLINDERS (Logical)_______________________1-992

       HEADS (Logical)___________________________1-32

       MEDIA TYPE _______________________________SOLID STATE

       HEAD TYPE ________________________________SOLID STATE

       RECORDING METHOD _________________________1 Mbit DRAM

       BACKUP MEMORY ____________________________3.5" disc drive

       BATTERY LIFE _____________________________3 yrs.

       TRANSFER RATE (mbytes/sec) _______________2.5-10.0

       BUFFER ___________________________________

       INTERFACE ________________________________IPI-2

       AVERAGE ACCESS (ms) ______________________0.1

       MTBF (power-on hours) Class A Room _______

       MTBF (power-on hours) Office _____________100,000

       POWER DISSIPATION (watts/BTU) ____________89/304

       USER MANUAL PART NUMBER __________________

       OTHER ____________________________________

       Physical:

                        Height (inches/mm):     4.75/120.65

                        Width  (inches/mm):     8.26/209.8

                        Depth  (inches/mm):     15.75/400.05

                        Weight    (lbs/kg):     31/14.09

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/23/91)


ST-81154K
ST-81154K (97229-1150) Sabre 5 2HP

                             ST-81154K

                         97229-1150 Sabre 5 2HP

       UNFORMATTED CAPACITY _____________________1,154

       FORMATTED CAPACITY (xx SECTORS) __________

       AVERAGE SECTORS PER TRACK (with spares)___

       ACTUATOR TYPE ____________________________STRAIGHT ARM

       TRACKS ___________________________________

       CYLINDERS ________________________________1,635

       HEADS (Logical/Physical)__________________7/14

       DISCS (8 in) _____________________________9

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       EXTERNAL TRANSFER RATE (mbytes/sec) ______6.0

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________

       INTERFACE ________________________________IPI-2

       BYTES PER TRACK __________________________100,800

       SECTORS PER DRIVE ________________________

       BYTES PER CYLINDER _______________________705,600

       TPI (TRACKS PER INCH) ____________________1,289

       BPI (BITS PER INCH) ______________________16,420-24,307

       AREAL DENSITY (MBits/sq in) ______________32.6

       AVERAGE ACCESS (ms) ______________________15

       SINGLE TRACK SEEK (ms) ___________________4

       MAX FULL SEEK (ms) _______________________30

       MTBF (power-on hours) Class A Room _______250,000

       MTBF (power-on hours) Office _____________150,000

       POWER DISSIPATION (watts/BTU) ____________110/375

       USER MANUAL PART NUMBER __________________83326010

       DIAGRAMS MANUAL PART NUMBER ______________83325730

       MAINT. MANUAL PART NUMBER ________________83325720

       PARTS MANUAL PART NUMBER _________________83325700

       THEORY MANUAL PART NUMBER ________________83325690

       OTHER ____________________________________Dual Access,

        Synchronized Spindles, Sweep Cycle Capability,

        Writes/Reads Two Heads Parallel

       Physical:

                        Height (inches/mm):     4.75/120.65

                        Width  (inches/mm):     8.50/216

                        Depth  (inches/mm):     14.7/373.38

                        Weight    (lbs/kg):     32/15

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/23/91)


ST-81236K
ST-81236K (97209-12G) Sabre 5

                             ST-81236K

                         97209-12G Sabre 5

       UNFORMATTED CAPACITY _____________________1,236

       FORMATTED CAPACITY (xx SECTORS) __________

       AVERAGE SECTORS PER TRACK (with spares)___

       ACTUATOR TYPE ____________________________STRAIGHT ARM

       TRACKS ___________________________________

       CYLINDERS ________________________________1,635

       HEADS ____________________________________15

       DISCS (8 in) _____________________________9

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       EXTERNAL TRANSFER RATE (mbytes/sec) ______3.0

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________

       INTERFACE ________________________________IPI-2

       BYTES PER TRACK __________________________50,400

       SECTORS PER DRIVE ________________________

       BYTES PER CYLINDER _______________________756,000

       TPI (TRACKS PER INCH) ____________________1,289

       BPI (BITS PER INCH) ______________________16,420-24,307

       AREAL DENSITY (MBits/sq in) ______________32.6

       AVERAGE ACCESS (ms) ______________________15

       SINGLE TRACK SEEK (ms) ___________________4

       MAX FULL SEEK (ms) _______________________30

       MTBF (power-on hours) Class A Room _______250,000

       MTBF (power-on hours) Office _____________150,000

       POWER DISSIPATION (watts/BTU) ____________95/324.2

       USER MANUAL PART NUMBER __________________83326010

       DIAGRAMS MANUAL PART NUMBER ______________83325730

       MAINT. MANUAL PART NUMBER ________________83325720

       PARTS MANUAL PART NUMBER _________________83325700

       THEORY MANUAL PART NUMBER ________________83325690

       OTHER ____________________________________Dual Access,

        Synchronized Spindles, Sweep Cycle Capability

       Physical:

                        Height (inches/mm):     4.75/120.65

                        Width  (inches/mm):     8.50/216

                        Depth  (inches/mm):     14.7/373.38

                        Weight    (lbs/kg):     32/15

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/23/91)


ST-8134K

                             ST-8134K

       UNFORMATTED CAPACITY _____________________134

       FORMATTED CAPACITY (xx SECTORS) __________

       SECTORS PER TRACK (Logical)_______________1-256

       CYLINDERS (Logical)_______________________1-992

       HEADS (Logical)___________________________1-32

       MEDIA TYPE _______________________________SOLID STATE

       HEAD TYPE ________________________________SOLID STATE

       RECORDING METHOD _________________________1 Mbit DRAM

       BACKUP MEMORY ____________________________3.5" disc drive

       BATTERY LIFE _____________________________3 yrs.

       TRANSFER RATE (mbytes/sec) _______________2.5-10.0

       BUFFER ___________________________________

       INTERFACE ________________________________IPI-2

       AVERAGE ACCESS (ms) ______________________0.1

       MTBF (power-on hours) Class A Room _______

       MTBF (power-on hours) Office _____________90,000

       POWER DISSIPATION (watts/BTU) ____________92/314

       USER MANUAL PART NUMBER __________________

       OTHER ____________________________________

       Physical:

                        Height (inches/mm):     4.75/120.65

                        Width  (inches/mm):     8.26/209.8

                        Depth  (inches/mm):     15.75/400.05

                        Weight    (lbs/kg):     32/14.55

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/23/91)


ST-8135K

                             ST-8135K

                          Solid State Disc

       UNFORMATTED CAPACITY _____________________134

       FORMATTED CAPACITY (xx SECTORS) __________

       SECTORS PER TRACK (Logical)_______________1-256

       CYLINDERS (Logical)_______________________1-992

       HEADS (Logical)___________________________1-32

       MEDIA TYPE _______________________________SOLID STATE

       HEAD TYPE ________________________________SOLID STATE

       RECORDING METHOD _________________________4 Mbit DRAM

       BACKUP MEMORY ____________________________3.5" disc drive

       BATTERY LIFE _____________________________3 yrs.

       TRANSFER RATE (mbytes/sec) _______________2.5-10.0

       BUFFER ___________________________________

       INTERFACE ________________________________IPI-2

       AVERAGE ACCESS (ms) ______________________0.1

       MTBF (power-on hours) Office _____________150,000

       POWER DISSIPATION (watts/BTU) ____________98/334

       USER MANUAL PART NUMBER __________________

       OTHER ____________________________________

       Physical:

                        Height (inches/mm):     4.75/120.65

                        Width  (inches/mm):     8.26/209.8

                        Depth  (inches/mm):     15.75/400.05

                        Weight    (lbs/kg):     33/14.97

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/23/91)


ST-8167K

                             ST-8167K

                          Solid State Disc

       UNFORMATTED CAPACITY _____________________167

       FORMATTED CAPACITY (xx SECTORS) __________

       SECTORS PER TRACK (Logical)_______________1-256

       CYLINDERS (Logical)_______________________1-992

       HEADS (Logical)___________________________1-32

       MEDIA TYPE _______________________________SOLID STATE

       HEAD TYPE ________________________________SOLID STATE

       RECORDING METHOD _________________________1 Mbit DRAM

       BACKUP MEMORY ____________________________3.5" disc drive

       BATTERY LIFE _____________________________3 yrs.

       TRANSFER RATE (mbytes/sec) _______________2.5-10.0

       BUFFER ___________________________________

       INTERFACE ________________________________IPI-2

       AVERAGE ACCESS (ms) ______________________0.1

       MTBF (power-on hours) Office _____________80,000

       POWER DISSIPATION (watts/BTU) ____________95/324

       USER MANUAL PART NUMBER __________________

       OTHER ____________________________________

       Physical:

                        Height (inches/mm):     4.75/120.65

                        Width  (inches/mm):     8.26/209.8

                        Depth  (inches/mm):     15.75/400.05

                        Weight    (lbs/kg):     33/14.97

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/23/91)


ST-8201K

                             ST-8201K

                          Solid State Disc

       UNFORMATTED CAPACITY _____________________201

       FORMATTED CAPACITY (xx SECTORS) __________

       SECTORS PER TRACK (Logical)_______________1-256

       CYLINDERS (Logical)_______________________1-992

       HEADS (Logical)___________________________1-32

       MEDIA TYPE _______________________________SOLID STATE

       HEAD TYPE ________________________________SOLID STATE

       RECORDING METHOD _________________________4 Mbit DRAM

       BACKUP MEMORY ____________________________3.5" disc drive

       BATTERY LIFE _____________________________3 yrs.

       TRANSFER RATE (mbytes/sec) _______________2.5-10.0

       BUFFER ___________________________________

       INTERFACE ________________________________IPI-2

       AVERAGE ACCESS (ms) ______________________0.1

       MTBF (power-on hours) Office _____________120,000

       POWER DISSIPATION (watts/BTU) ____________101/344

       USER MANUAL PART NUMBER __________________

       OTHER ____________________________________

       Physical:

                        Height (inches/mm):     4.75/120.65

                        Width  (inches/mm):     8.26/209.8

                        Depth  (inches/mm):     15.75/400.05

                        Weight    (lbs/kg):     33/14.97

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/23/91)


ST-82030K
ST-82030K  Sabre 6

                             ST-82030K

                             Sabre 6

       UNFORMATTED CAPACITY _____________________2,030

       FORMATTED CAPACITY (xx SECTORS) __________

       AVERAGE SECTORS PER TRACK (with spares)___

       ACTUATOR TYPE ____________________________STRAIGHT ARM

       TRACKS ___________________________________

       CYLINDERS ________________________________2,120

       HEADS ____________________________________19

       DISCS (8 in) _____________________________11

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       EXTERNAL TRANSFER RATE (mbytes/sec) ______3.0

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________

       INTERFACE ________________________________IPI-2

       BYTES PER TRACK __________________________50,400

       SECTORS PER DRIVE ________________________

       BYTES PER CYLINDER _______________________957,600

       TPI (TRACKS PER INCH) ____________________1,880

       BPI (BITS PER INCH) ______________________20,789

       AVERAGE ACCESS (ms) ______________________11

       SINGLE TRACK SEEK (ms) ___________________2

       MAX FULL SEEK (ms) _______________________26

       MTBF (power-on hours) Class A Room _______250,000

       MTBF (power-on hours) Office _____________150,000

       POWER DISSIPATION (watts/BTU) ____________95/324.2

       USER MANUAL PART NUMBER __________________83327230

       OTHER ____________________________________Dual Access,

        Synchronized Spindles, Sweep Cycle Capability

       Physical:

                        Height (inches/mm):     4.75/120.65

                        Width  (inches/mm):     8.50/216

                        Depth  (inches/mm):     14.7/373.3

                        Weight    (lbs/kg):     32/13

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/23/91)


ST-82105K
ST-82105K  (97289-21G) Sabre 6 8HP

                             ST-82105K

                      97289-21G Sabre 6 8HP

       UNFORMATTED CAPACITY _____________________2,105

       FORMATTED CAPACITY (xx SECTORS) __________

       AVERAGE SECTORS PER TRACK (with spares)___

       ACTUATOR TYPE ____________________________STRAIGHT ARM

       TRACKS ___________________________________

       CYLINDERS ________________________________2,611

       HEADS (Logical/Physical)__________________2/16

       DISCS (8 in) _____________________________11

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       EXTERNAL TRANSFER RATE (mbytes/sec) ______24.3

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________

       INTERFACE ________________________________IPI-2

       BYTES PER TRACK __________________________403,199

       SECTORS PER DRIVE ________________________

       BYTES PER CYLINDER _______________________806,400

       TPI (TRACKS PER INCH) ____________________1,880

       BPI (BITS PER INCH) ______________________24,200

       AREAL DENSITY (MBits/sq in) ______________

       AVERAGE ACCESS (ms) ______________________12

       SINGLE TRACK SEEK (ms) ___________________2

       MAX FULL SEEK (ms) _______________________26

       MTBF (power-on hours) Class A Room _______100,000

       MTBF (power-on hours) Office _____________80,000

       POWER DISSIPATION (watts/BTU) ____________255/870

       USER MANUAL PART NUMBER __________________

       OTHER ____________________________________Dual Access,

        Synchronized Spindles, Sweep Cycle Capability,

        Writes/Reads Eight Heads Parallel

       Physical:

                        Height (inches/mm):     8.44/214.4

                        Width  (inches/mm):     8.72/221.5

                        Depth  (inches/mm):     29.5/749.3

                        Weight    (lbs/kg):     55/25

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/23/91)


ST-82368K
ST-82368K (97299-23G) Sabre 6 9HP

                             ST-82368K

                         97299-23G Sabre 6 9HP

       UNFORMATTED CAPACITY _____________________2,368

       FORMATTED CAPACITY (xx SECTORS) __________

       AVERAGE SECTORS PER TRACK (with spares)___

       ACTUATOR TYPE ____________________________STRAIGHT ARM

       TRACKS ___________________________________

       CYLINDERS ________________________________2,611

       HEADS (Logical/Physical)__________________2/18

       DISCS (8 in) _____________________________11

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       EXTERNAL TRANSFER RATE (mbytes/sec) ______27.3

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________

       INTERFACE ________________________________IPI-2

       BYTES PER TRACK __________________________453,599

       SECTORS PER DRIVE ________________________

       BYTES PER CYLINDER _______________________907,200

       TPI (TRACKS PER INCH) ____________________1,880

       BPI (BITS PER INCH) ______________________24,200

       AREAL DENSITY (MBits/sq in) ______________

       AVERAGE ACCESS (ms) ______________________12

       SINGLE TRACK SEEK (ms) ___________________2

       MAX FULL SEEK (ms) _______________________26

       MTBF (power-on hours) Class A Room _______100,000

       MTBF (power-on hours) Office _____________80,000

       POWER DISSIPATION (watts/BTU) ____________275/938

       USER MANUAL PART NUMBER __________________83327350

       PARTS MANUAL PART NUMBER _________________83327360

       MAINT. MANUAL PART NUMBER ________________83327370

       OTHER ____________________________________Dual Access,

        Synchronized Spindles, Sweep Cycle Capability,

        Writes/Reads Nine Heads Parallel

       Physical:

                        Height (inches/mm):     8.44/214.4

                        Width  (inches/mm):     8.72/221.5

                        Depth  (inches/mm):     29.5/749.3

                        Weight    (lbs/kg):     55/25

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/23/91)


ST-82500K
ST-82500K (97209-25G) Sabre 6

                             ST-82500K

                        97209-25G Sabre 6

       UNFORMATTED CAPACITY _____________________2,500

       FORMATTED CAPACITY (xx SECTORS) __________

       AVERAGE SECTORS PER TRACK (with spares)___

       ACTUATOR TYPE ____________________________STRAIGHT ARM

       TRACKS ___________________________________

       CYLINDERS ________________________________2,611

       HEADS ____________________________________19

       DISCS (8 in) _____________________________11

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       EXTERNAL TRANSFER RATE (mbytes/sec) ______3.04

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________

       INTERFACE ________________________________IPI-2

       BYTES PER TRACK __________________________50,400

       SECTORS PER DRIVE ________________________

       BYTES PER CYLINDER _______________________957,600

       TPI (TRACKS PER INCH) ____________________1,880

       BPI (BITS PER INCH) ______________________24,200

       AREAL DENSITY (MBits/sq in) ______________

       AVERAGE ACCESS (ms) ______________________12

       SINGLE TRACK SEEK (ms) ___________________2

       MAX FULL SEEK (ms) _______________________26

       MTBF (power-on hours) Class A Room _______250,000

       MTBF (power-on hours) Office _____________150,000

       POWER DISSIPATION (watts/BTU) ____________95/324.2

       USER MANUAL PART NUMBER __________________83327210

       MAINT. MANUAL PART NUMBER ________________83327230

       PARTS MANUAL PART NUMBER _________________83327240

       THEORY MANUAL PART NUMBER ________________83327530

       OTHER ____________________________________Dual Access,

        Synchronized Spindles, Sweep Cycle Capability

       Physical:

                        Height (inches/mm):     4.75/120.65

                        Width  (inches/mm):     8.50/216

                        Depth  (inches/mm):     14.7/373.3

                        Weight    (lbs/kg):     28/13

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/23/91)


ST-8268K

                             ST-8268K

                          Solid State Disc

       UNFORMATTED CAPACITY _____________________268

       FORMATTED CAPACITY (xx SECTORS) __________

       SECTORS PER TRACK (Logical)_______________1-256

       CYLINDERS (Logical)_______________________1-992

       HEADS (Logical)___________________________1-32

       MEDIA TYPE _______________________________SOLID STATE

       HEAD TYPE ________________________________SOLID STATE

       RECORDING METHOD _________________________4 Mbit DRAM

       BACKUP MEMORY ____________________________3.5" disc drive

       BATTERY LIFE _____________________________3 yrs.

       TRANSFER RATE (mbytes/sec) _______________2.5-10.0

       BUFFER ___________________________________

       INTERFACE ________________________________IPI-2

       AVERAGE ACCESS (ms) ______________________0.1

       MTBF (power-on hours) Office _____________100,000

       POWER DISSIPATION (watts/BTU) ____________104/355

       USER MANUAL PART NUMBER __________________

       OTHER ____________________________________

       Physical:

                        Height (inches/mm):     4.75/120.65

                        Width  (inches/mm):     8.26/209.8

                        Depth  (inches/mm):     15.75/400.05

                        Weight    (lbs/kg):     33/14.97

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/23/91)


ST-83050K
ST-83050K  Sabre 7 2HP

                             ST-83050K

                             Sabre 7 2HP

       UNFORMATTED CAPACITY _____________________3,050

       FORMATTED CAPACITY (xx SECTORS) __________

       AVERAGE SECTORS PER TRACK (with spares)___

       ACTUATOR TYPE ____________________________STRAIGHT ARM

       TRACKS ___________________________________

       CYLINDERS ________________________________2,655

       HEADS ____________________________________18

       DISCS (8 in) _____________________________11

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________RLL (1,7)

       EXTERNAL TRANSFER RATE (mbytes/sec) ______9.34

       SPINDLE SPEED (RPM) ______________________4,365

       AVERAGE LATENCY (mSEC) ___________________6.87

       BUFFER ___________________________________

       INTERFACE ________________________________IPI-2

       BYTES PER TRACK __________________________127,680

       SECTORS PER DRIVE ________________________

       BYTES PER CYLINDER _______________________1,149,120

       TPI (TRACKS PER INCH) ____________________1,912

       BPI (BITS PER INCH) ______________________32,202

       AVERAGE ACCESS (ms) ______________________12

       SINGLE TRACK SEEK (ms) ___________________2

       MAX FULL SEEK (ms) _______________________26

       MTBF (power-on hours) Class A Room _______250,000

       MTBF (power-on hours) Office _____________150,000

       POWER DISSIPATION (watts/BTU) ____________110/375

       USER MANUAL PART NUMBER __________________83327210

       OTHER ____________________________________Dual Access,

        Synchronized Spindles, Sweep Cycle Capability

        Writes/Reads Two Heads Parallel

       Physical:

                        Height (inches/mm):     4.75/120.65

                        Width  (inches/mm):     8.50/216

                        Depth  (inches/mm):     14.7/373.3

                        Weight    (lbs/kg):     26/13

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/23/91)


ST-83220K
ST-83220K  Sabre 7

                             ST-83220K

                              Sabre 7

       UNFORMATTED CAPACITY _____________________3,220

       FORMATTED CAPACITY (xx SECTORS) __________

       AVERAGE SECTORS PER TRACK (with spares)___

       ACTUATOR TYPE ____________________________STRAIGHT ARM

       TRACKS ___________________________________

       CYLINDERS ________________________________2,655

       HEADS ____________________________________19

       DISCS (8 in) _____________________________11

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________RLL (1,7)

       EXTERNAL TRANSFER RATE (mbytes/sec) ______4.67

       SPINDLE SPEED (RPM) ______________________4,365

       AVERAGE LATENCY (mSEC) ___________________6.87

       BUFFER ___________________________________

       INTERFACE ________________________________IPI-2

       BYTES PER TRACK __________________________63,840

       SECTORS PER DRIVE ________________________

       BYTES PER CYLINDER _______________________1,212,960

       TPI (TRACKS PER INCH) ____________________1,912

       BPI (BITS PER INCH) ______________________32,202

       AVERAGE ACCESS (ms) ______________________12

       SINGLE TRACK SEEK (ms) ___________________2.2

       MAX FULL SEEK (ms) _______________________26

       MTBF (power-on hours) Class A Room _______250,000

       MTBF (power-on hours) Office _____________150,000

       POWER DISSIPATION (watts/BTU) ____________95/324.2

       USER MANUAL PART NUMBER __________________83327210

       OTHER ____________________________________Dual Access,

        Synchronized Spindles, Sweep Cycle Capability

       Physical:

                        Height (inches/mm):     4.75/120.65

                        Width  (inches/mm):     8.50/216

                        Depth  (inches/mm):     14.7/373.3

                        Weight    (lbs/kg):     28/13

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/23/91)


ST-8335K

                             ST-8335K

                          Solid State Disc

       UNFORMATTED CAPACITY _____________________335

       FORMATTED CAPACITY (xx SECTORS) __________

       SECTORS PER TRACK (Logical)_______________1-256

       CYLINDERS (Logical)_______________________1-992

       HEADS (Logical)___________________________1-32

       MEDIA TYPE _______________________________SOLID STATE

       HEAD TYPE ________________________________SOLID STATE

       RECORDING METHOD _________________________4 Mbit DRAM

       BACKUP MEMORY ____________________________3.5" disc drive

       BATTERY LIFE _____________________________3 yrs.

       TRANSFER RATE (mbytes/sec) _______________2.5-10.0

       BUFFER ___________________________________

       INTERFACE ________________________________IPI-2

       AVERAGE ACCESS (ms) ______________________0.1

       MTBF (power-on hours) Office _____________85,000

       POWER DISSIPATION (watts/BTU) ____________107/365

       USER MANUAL PART NUMBER __________________

       OTHER ____________________________________

       Physical:

                        Height (inches/mm):     4.75/120.65

                        Width  (inches/mm):     8.26/209.8

                        Depth  (inches/mm):     15.75/400.05

                        Weight    (lbs/kg):     33/14.97

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/23/91)


ST-833K

                             ST-833K

                          Solid State Disc

       UNFORMATTED CAPACITY _____________________33

       FORMATTED CAPACITY (xx SECTORS) __________

       SECTORS PER TRACK (Logical)_______________1-256

       CYLINDERS (Logical)_______________________1-992

       HEADS (Logical)___________________________1-32

       MEDIA TYPE _______________________________SOLID STATE

       HEAD TYPE ________________________________SOLID STATE

       RECORDING METHOD _________________________1 Mbit DRAM

       BACKUP MEMORY ____________________________3.5" disc drive

       BATTERY LIFE _____________________________3 yrs.

       TRANSFER RATE (mbytes/sec) _______________2.5-10.0

       BUFFER ___________________________________

       INTERFACE ________________________________IPI-2

       AVERAGE ACCESS (ms) ______________________0.1

       MTBF (power-on hours) Office _____________150,000

       POWER DISSIPATION (watts/BTU) ____________83/284

       USER MANUAL PART NUMBER __________________

       OTHER ____________________________________

       Physical:

                        Height (inches/mm):     4.75/120.65

                        Width  (inches/mm):     8.26/209.8

                        Depth  (inches/mm):     15.75/400.05

                        Weight    (lbs/kg):     29/13.18

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/23/91)


ST-8402K

                             ST-8402K

                          Solid State Disc

       UNFORMATTED CAPACITY _____________________402

       FORMATTED CAPACITY (xx SECTORS) __________

       SECTORS PER TRACK (Logical)_______________1-256

       CYLINDERS (Logical)_______________________1-992

       HEADS (Logical)___________________________1-32

       MEDIA TYPE _______________________________SOLID STATE

       HEAD TYPE ________________________________SOLID STATE

       RECORDING METHOD _________________________4 Mbit DRAM

       BACKUP MEMORY ____________________________3.5" disc drive

       BATTERY LIFE _____________________________3 yrs.

       TRANSFER RATE (mbytes/sec) _______________2.5-10.0

       BUFFER ___________________________________

       INTERFACE ________________________________IPI-2

       AVERAGE ACCESS (ms) ______________________0.1

       MTBF (power-on hours) Office _____________75,000

       POWER DISSIPATION (watts/BTU) ____________110/375

       USER MANUAL PART NUMBER __________________

       OTHER ____________________________________

       Physical:

                        Height (inches/mm):     4.75/120.65

                        Width  (inches/mm):     8.26/209.8

                        Depth  (inches/mm):     15.75/400.05

                        Weight    (lbs/kg):     33/14.97

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/23/91)


ST-867K

                             ST-867K

                          Solid State Disc

       UNFORMATTED CAPACITY _____________________67

       FORMATTED CAPACITY (xx SECTORS) __________

       SECTORS PER TRACK (Logical)_______________1-256

       CYLINDERS (Logical)_______________________1-992

       HEADS (Logical)___________________________1-32

       MEDIA TYPE _______________________________SOLID STATE

       HEAD TYPE ________________________________SOLID STATE

       RECORDING METHOD _________________________1 Mbit DRAM

       BACKUP MEMORY ____________________________3.5" disc drive

       BATTERY LIFE _____________________________3 yrs.

       TRANSFER RATE (mbytes/sec) _______________2.5-10.0

       BUFFER ___________________________________

       INTERFACE ________________________________IPI-2

       AVERAGE ACCESS (ms) ______________________0.1

       MTBF (power-on hours) Office _____________120,000

       POWER DISSIPATION (watts/BTU) ____________86/294

       USER MANUAL PART NUMBER __________________

       OTHER ____________________________________

       Physical:

                        Height (inches/mm):     4.75/120.65

                        Width  (inches/mm):     8.26/209.8

                        Depth  (inches/mm):     15.75/400.05

                        Weight    (lbs/kg):     30/13.64

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/23/91)


ST-868K

                             ST-868K

                          Solid State Disc

       UNFORMATTED CAPACITY _____________________67

       FORMATTED CAPACITY (xx SECTORS) __________

       SECTORS PER TRACK (Logical)_______________1-256

       CYLINDERS (Logical)_______________________1-992

       HEADS (Logical)___________________________1-32

       MEDIA TYPE _______________________________SOLID STATE

       HEAD TYPE ________________________________SOLID STATE

       RECORDING METHOD _________________________4 Mbit DRAM

       BACKUP MEMORY ____________________________3.5" disc drive

       BATTERY LIFE _____________________________3 yrs.

       TRANSFER RATE (mbytes/sec) _______________2.5-10.0

       BUFFER ___________________________________

       INTERFACE ________________________________IPI-2

       AVERAGE ACCESS (ms) ______________________0.1

       MTBF (power-on hours) Office _____________200,000

       POWER DISSIPATION (watts/BTU) ____________95/324

       USER MANUAL PART NUMBER __________________

       OTHER ____________________________________

       Physical:

                        Height (inches/mm):     4.75/120.65

                        Width  (inches/mm):     8.26/209.8

                        Depth  (inches/mm):     15.75/400.05

                        Weight    (lbs/kg):     33/14.97

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/23/91)


ST-8851K
ST-8851K (97209-850) Sabre 4

                             ST-8851K

                       97209-850 Sabre 4

       UNFORMATTED CAPACITY ____ ________________851

       FORMATTED CAPACITY (xx SECTORS) __________

       AVERAGE SECTORS PER TRACK (with spares)___

       ACTUATOR TYPE ____________________________STRAIGHT ARM

       TRACKS ___________________________________

       CYLINDERS ________________________________1,381

       HEADS ____________________________________15

       DISCS (8 in) _____________________________9

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       EXTERNAL TRANSFER RATE (mbytes/sec) ______2.46

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________

       INTERFACE ________________________________IPI-2

       BYTES PER TRACK __________________________41,088

       SECTORS PER DRIVE ________________________

       BYTES PER CYLINDER _______________________616,320

       TPI (TRACKS PER INCH) ____________________1,089

       BPI (BITS PER INCH) ______________________19,816

       AVERAGE ACCESS (ms) ______________________15

       SINGLE TRACK SEEK (ms) ___________________4

       MAX FULL SEEK (ms) _______________________30

       MTBF (power-on hours) Class A Room _______100,000

       MTBF (power-on hours) Office _____________100,000

       POWER DISSIPATION (watts/BTU) ____________95/324.2

       USER MANUAL PART NUMBER __________________83326010

       OTHER ____________________________________Dual Access,

        Synchronized Spindles, Sweep Cycle Capability

       Physical:

                        Height (inches/mm):     4.75/120.65

                        Width  (inches/mm):     8.50/216

                        Depth  (inches/mm):     14.7/373.38

                        Weight    (lbs/kg):     32/15

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/23/91)


ST-1100
ST-1100 (94355-100) Swift ST412 MFM

     ÚÄÄÄ\

     ³ O ³  5

     ³ O ³  G

     ³ O ³  G                                          ÚÄÄÄ Located on rear

     ³ O ³ 12                                          ³     side of drive

     ÀÄÄÄ/          Ú Controller Cable                 ³

     ÍÍÍÍÍÍÍÍ ÍÍ   ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍÍ            ÚÄÄÄÄÄÁÄÄÄÄÄ¿

      ÀData Cable    ÚÄÄÄÄÄÄÄÄÄÄ¿   1             o o o o o o

                     1ÄÄÄÄÄÄÄÄÄÄÙ                 o o o o o o   (front)

                      Terminator                  1 2 3 4 R Ext

                                                  ÄÄÄÂÄÄÄ ³ ³

                                                     ³    ³ ³

                                                     ³    ³ ³

                                                     ³    ³ ³

                                                     ³    ³ ³

                                Drive Selects  ÄÄÄÄÄÄÙ    ³ ³

                                Radial Select ÄÄÄÄÄÄÄÄÄÄÄÄÙ ³

                                External spindle clock  ÄÄÄÄÙ

                              ST-1100

                         94355-100 Swift

       UNFORMATTED CAPACITY (MB) ________________100

       FORMATTED CAPACITY (17 SECTORS) (MB) _____83

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________9,648

       CYLINDERS ________________________________1,072

       HEADS ____________________________________9

       DISCS ____________________________________5

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________MFM

       TRANSFER RATE (mbits/sec) ________________5.0

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       INTERFACE ________________________________ST412

       SECTORS PER DRIVE ________________________164,016

       TPI (TRACKS PER INCH) ____________________1,350

       BPI (BITS PER INCH) ______________________14,019

       AVERAGE ACCESS (ms) ______________________15

       SINGLE TRACK SEEK (ms) ___________________4

       MAX FULL SEEK (ms) _______________________35

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.5

                           +12V TYPICAL (amps) __0.7

                           +5V START-UP (amps) __0.75

                           +5V TYPICAL (amps) ___0.4

                           TYPICAL (watts) ______10

                           MAXIMUM (watts) ______12

       BUFFERED STEP PULSE RATE (micro sec) _____6-200

       WRITE PRECOMP (cyl) ______________________N/A (1073)

       REDUCED WRITE CURRENT (cyl) ______________N/A (1073)

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________35 or *

 * FORMATTING AND PARTITIONING SOFTWARE MAY BE REQUIRED TO

   ACHIEVE FULL CAPACITY.  ALSO, CHECK TO SEE IF YOUR CMOS SETUP

   HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE.

                          Swift Remote LED Option

               Front View of Drive Without the Plastic Bezel

                                  ÚÄÄÄÂÄÄÄ¿

                                  ³ A ³ B ³    B = Anode

                                  ÃÄÄÄÅÄÄÄ´    D = Cathode

                                  ³ C ³ D ³

              ...ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÏÍÍÍÏÍÍÍÍÍPÍWÍAÍÍÍ...

        ø Default jumper at C-D for LED mounted on drive PWA

        ø To use remote LED, remove jumper and extend B (Anode)

          and D (Cathode).

        ø Swift LED kit 75912397 allows connection to a remote LED

        ø Swift LED kit 95913369 has an LED for attachment to the

          system front bezel or a 5.25-inch frame kit

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-124
ST-124 ST412 MFM

                                                     /ÄÄÄ¿

                                                     ³ O ³12

                                                     ³ O ³G

                                                     ³ O ³G

                                                     ³ O ³5

      ÚData Cable     ÚController Cable    1         \ÄÄÄÙ

      ÍÍÍÍÍÍÍÍÍ ÍÍ   ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍÍÍ   ÍÍÍÍÍÍÍÍÍÍÍÍ

                  o o o o o o ÚÄÄÄÄÄÄÄÄÄÄÄÄ¿

                  o o o o o o ÀÄÄÂÄÄÄÄÄÄÄÄÄÙ

                  ³ ³ 4 3 2 1    À Resistor Termination Pack located

                  ³ ³ ÄÄÄÂÄÄÄ      behind options header (fixed)

                  ³ ³    ³

                  ³ ³    ÀÄÄÄÄ Drive Selects

                  ³ ÀÄÄÄÄÄÄÄÄÄ Factory Test

                  ÀÄÄÄÄÄÄÄÄÄÄÄ Radial

                              ST - 124

       UNFORMATTED CAPACITY (MB) ________________25.6

       FORMATTED CAPACITY (17 SECTORS) (MB) _____21.4

       ACTUATOR TYPE ____________________________STEPPER

       TRACKS ___________________________________2,460

       CYLINDERS ________________________________615

       HEADS ____________________________________4

       DISCS ____________________________________2

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________MFM

       TRANSFER RATE (mbits/sec) ________________5.0

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.3

       INTERFACE ________________________________ST412

       SECTORS PER DRIVE ________________________41,820

       TPI (TRACKS PER INCH) ____________________824

       BPI (BITS PER INCH) ______________________14,953

       AVERAGE ACCESS (ms) ______________________40

       SINGLE TRACK SEEK (ms) ___________________12

       MAX FULL SEEK (ms) _______________________95

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.4

                           +12V TYPICAL (amps) __0.35

                           +5V TYPICAL (amps) ___0.8

                           TYPICAL (watts) ______8

                           MAXIMUM (watts) ______33

       BUFFERED STEP PULSE RATE (micro sec) _____3-200

       WRITE PRECOMP (cyl) ______________________N/A (616)

       REDUCED WRITE CURRENT (cyl) ______________N/A (616)

       LANDING ZONE (cyl)________________________670

       IBM AT DRIVE TYPE ________________________6

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-125
ST-125 ST412 MFM

                                                            /ÄÄÄ¿

                                                            ³ O ³12

                                                            ³ O ³G

                                                            ³ O ³G

                                                            ³ O ³5

      ÚData Cable            ÚController Cable    1         \ÄÄÄÙ

      ÍÍÍÍÍÍÍÍÍ ÍÍ          ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍÍÍ   ÍÍÍÍÍÍÍÍÍÍÍÍ

              1 o o o o o o o ÚÄÄÄÄÄÄÄÄÄÄÄÄ1

              o o o o o o o o ÀÄÄÂÄÄÄÄÄÄÄÄÄÙ

              ³ ³ ³ ³ 4 3 2 1    À Resistor Termination Pack

              ³ ³ ³ ³ ÄÄÄÂÄÄÄ

              ³ ³ ³ ³    ³

              ³ ³ ³ ³    ÀÄÄÄÄ Drive Selects

              ³ ³ ³ ÀÄÄÄÄÄÄÄÄÄ Factory Test

              ³ ³ ÀÄÄÄÄÄÄÄÄÄÄÄ Write Fault

              ³ ÀÄÄÄÄÄÄÄÄÄÄÄÄÄ Not Used

              ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Radial

Note: Some configurations have the drive select jumper block oriented

      perpendicular to the back of the drive. In this configuration,

      pin-1 (radial select) is closest to the front faceplate of the

      drive.

                          ST - 125

       UNFORMATTED CAPACITY (MB) ________________25.6

       FORMATTED CAPACITY (17 SECTORS) (MB) _____21.4

       ACTUATOR TYPE ____________________________STEPPER

       TRACKS ___________________________________2,460

       CYLINDERS ________________________________615

       HEADS ____________________________________4

       DISCS ____________________________________2

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________MFM

       TRANSFER RATE (mbits/sec) ________________5.0

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.3

       INTERFACE ________________________________ST412

       SECTORS PER DRIVE ________________________41,820

       TPI (TRACKS PER INCH) ____________________824

       BPI (BITS PER INCH) ______________________14,953

       AVERAGE ACCESS (ms)*______________________40/28

       SINGLE TRACK SEEK (ms) ___________________8

       MAX FULL SEEK (ms) _______________________70

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.0

                           +12V TYPICAL (amps) __0.35

                           +5V TYPICAL (amps) ___0.8

                           TYPICAL (watts) ______8

                           MAXIMUM (watts) ______28

       BUFFERED STEP PULSE RATE (micro sec) _____3-200

       WRITE PRECOMP (cyl) ______________________N/A (616)

       REDUCED WRITE CURRENT (cyl) ______________N/A (616)

       LANDING ZONE (cyl)________________________AUTO PARK

       IBM AT DRIVE TYPE ________________________6

       *ST125-0/ST125-1

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-138
ST-138 ST412 MFM

                                                            /ÄÄÄ¿

                                                            ³ O ³12

                                                            ³ O ³G

                                                            ³ O ³G

                                                            ³ O ³5

      ÚData Cable            ÚController Cable    1         \ÄÄÄÙ

      ÍÍÍÍÍÍÍÍÍ ÍÍ          ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍÍÍ   ÍÍÍÍÍÍÍÍÍÍÍÍ

              1 o o o o o o o ÚÄÄÄÄÄÄÄÄÄÄÄÄ1

              o o o o o o o o ÀÄÄÂÄÄÄÄÄÄÄÄÄÙ

              ³ ³ ³ ³ 4 3 2 1    À Resistor Termination Pack

              ³ ³ ³ ³ ÄÄÄÂÄÄÄ

              ³ ³ ³ ³    ³

              ³ ³ ³ ³    ÀÄÄÄÄ Drive Selects

              ³ ³ ³ ÀÄÄÄÄÄÄÄÄÄ Factory Test

              ³ ³ ÀÄÄÄÄÄÄÄÄÄÄÄ Write Fault

              ³ ÀÄÄÄÄÄÄÄÄÄÄÄÄÄ Not Used

              ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Radial

Note: Some configurations have the drive select jumper block oriented

      perpendicular to the back of the drive. In this configuration,

      pin-1 (radial select) is closest to the front faceplate of the

      drive.

                         ST - 138

       UNFORMATTED CAPACITY (MB) ________________38.4

       FORMATTED CAPACITY (17 SECTORS) (MB) _____32.1

       ACTUATOR TYPE ____________________________STEPPER

       TRACKS ___________________________________3,690

       CYLINDERS ________________________________615

       HEADS ____________________________________6

       DISCS ____________________________________3

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________MFM

       TRANSFER RATE (mbits/sec) ________________5.0

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.3

       INTERFACE ________________________________ST412

       SECTORS PER DRIVE ________________________62,730

       TPI (TRACKS PER INCH) ____________________824

       BPI (BITS PER INCH) ______________________14,953

       AVERAGE ACCESS (ms)*______________________40/28

       SINGLE TRACK SEEK (ms) ___________________8

       MAX FULL SEEK (ms) _______________________70

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.0

                           +12V TYPICAL (amps) __0.35

                           +5V TYPICAL (amps) ___0.8

                           TYPICAL (watts) ______8

                           MAXIMUM (watts) ______28

       BUFFERED STEP PULSE RATE (micro sec) _____3-200

       WRITE PRECOMP (cyl) ______________________N/A (616)

       REDUCED WRITE CURRENT (cyl) ______________N/A (616)

       LANDING ZONE (cyl)________________________AUTO PARK

       IBM AT DRIVE TYPE ________________________3

       *ST138-0/ST138-1

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-151
ST-151 ST412 MFM

                                                          /ÄÄÄ¿

                                                          ³ 0 ³12

                                                          ³ 0 ³G

                                                          ³ 0 ³G

                                                          ³ 0 ³5

               ÚData Cable      ÚController Cable    1    \ÄÄÄÙ

               ÍÍÍÍÍÍÍÍÍ ÍÍ    ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍÍÍ   ÍÍÍÍÍÍÍ

                       o o o o o o o o ÚÄÄÄÄÄÄÄÄÄÄÄÄ1

                       o o o o o o o o ÀÄÄÂÄÄÄÄÄÄÄÄÄÙ

                       ³ ³ ³ ³ 4 3 2 1    À Resistor Termination Pack

    (front corner)     ³ ³ ³ ³ ÄÄÄÂÄÄÄ

    Úo Optional        ³ ³ ³ ³    ³

    Ào LED             ³ ³ ³ ³    ÀÄÄÄÄ Drive Selects

       Connector       ³ ³ ³ ÀÄÄÄÄÄÄÄÄÄ Factory Test

                       ³ ³ ÀÄÄÄÄÄÄÄÄÄÄÄ Not Used

                       ³ ÀÄÄÄÄÄÄÄÄÄÄÄÄÄ Recovery Mode

                       ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Radial

                              ST - 151

       UNFORMATTED CAPACITY (MB) ________________50.8

       FORMATTED CAPACITY (17 SECTORS) (MB) _____42.5

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________4,885

       CYLINDERS ________________________________977

       HEADS ____________________________________5

       DISCS ____________________________________3

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________MFM

       TRANSFER RATE (mbits/sec) ________________5.0

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       INTERFACE ________________________________ST412

       SECTORS PER DRIVE ________________________83,045

       TPI (TRACKS PER INCH) ____________________1,300

       BPI (BITS PER INCH) ______________________14,108

       AVERAGE ACCESS (ms) ______________________24

       SINGLE TRACK SEEK (ms) ___________________8

       MAX FULL SEEK (ms) _______________________44

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.0

                           +12V TYPICAL (amps) __0.45

                           +5V TYPICAL (amps) ___0.5

                           TYPICAL (watts) ______8

                           MAXIMUM (watts) ______27

       BUFFERED STEP PULSE RATE (micro sec) _____3-200

       WRITE PRECOMP (cyl) ______________________N/A (978)

       REDUCED WRITE CURRENT (cyl) ______________N/A (978)

       LANDING ZONE (cyl)________________________AUTO PARK

       IBM AT DRIVE TYPE ________________________17 or 11*

 * MAY REQUIRE A CONTROLLER WITH BIOS SUPPORT, OR FORMATTING

   AND PARTITIONING SOFTWARE.  ALSO, CHECK TO SEE IF YOUR CMOS SETUP

   HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE.

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-212
ST-212 ST412 MFM

       UNFORMATTED CAPACITY (MB) ________________12.76

       FORMATTED CAPACITY (17 SECTORS) (MB) _____10.0

       ACTUATOR TYPE ____________________________STEPPER

       TRACKS ___________________________________1,224

       CYLINDERS ________________________________306

       HEADS ____________________________________4

       DISCS ____________________________________1

       MEDIA TYPE _______________________________OXIDE

       RECORDING METHOD _________________________MFM

       TRANSFER RATE (mbits/sec) ________________5.0

       SPINDLE SPEED (RPM) ______________________3,600

       INTERFACE ________________________________ST412

       TPI (TRACKS PER INCH) ____________________550

       BPI (BITS PER INCH) ______________________10,560

       AVERAGE ACCESS (ms) ______________________65

       SINGLE TRACK SEEK (ms) ___________________23

       MTBF (power-on hours) ____________________11,000

       POWER REQUIREMENTS: +12V START-UP (amps) _3.2

                           +12V TYPICAL (amps) __1.0

                           +5V TYPICAL (amps) ___1.0

                           TYPICAL (watts) ______17

                           MAXIMUM (watts) ______44.4

       BUFFERED STEP PULSE RATE (micro sec) _____5-500

       WRITE PRECOMP (cyl) ______________________128

       REDUCED WRITE CURRENT (cyl) ______________N/A (307)

       LANDING ZONE (cyl)________________________319

       IBM AT DRIVE TYPE ________________________1

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-213
ST-213 ST412 MFM

                                                          /Ä4Ä3Ä2Ä1Ä\

                                                          ³ O O O O ³ Power

              o o o o o o o o                             ÀÄÄÄÄÄÄÄÄÄÙ

  ÚData Cable o o o o o o o o  ÚController Cable    1       5 G G 12

 ÍÍÍÍÍÍÍÍÍ ÍÍ ³ ³ ³ ³ ³ ³ ³ ³ ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍÍÍ   ÍÍÍÍÍÍÍÍÍÍÍÍ

              ³ ³ ³ ³ ³ ³ ³ ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄ1

              ³ ³ ³ ³ ³ ³ ³ ³ ÀÄTerminatorÄÙ

              ³ ³ ³ ³ ³ ³ ³ ³

Drive Select->1 2 3 4 ³ ³ ³ À Radial

                ³ ³ ³ ³ ³ ÀÄÄ Reserved

                ³ ÀÂÙ ³ ÀÄÄÄÄ Write Fault

                ³  ³  ÀÄÄÄÄÄÄ Factory Test

                ³  ÀÄÄÄÄÄÄÄÄÄ Never Used (Drive Select 3 and 4)

                À If twisted cable, use Drive Select 2

                              ST - 213

       UNFORMATTED CAPACITY (MB) ________________12.8

       FORMATTED CAPACITY (17 SECTORS) (MB) _____10.7

       ACTUATOR TYPE ____________________________STEPPER

       TRACKS ___________________________________1,230

       CYLINDERS ________________________________615

       HEADS ____________________________________2

       DISCS ____________________________________1

       MEDIA TYPE _______________________________OXIDE

       RECORDING METHOD _________________________MFM

       TRANSFER RATE (mbits/sec) ________________5.0

       SPINDLE SPEED (RPM) ______________________3,600

       INTERFACE ________________________________ST412

       TPI (TRACKS PER INCH) ____________________588

       BPI (BITS PER INCH) ______________________9,827

       AVERAGE ACCESS (ms) ______________________65

       SINGLE TRACK SEEK (ms) ___________________20

       MTBF (power-on hours) ____________________20,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.2

                           +12V TYPICAL (amps) __0.9

                           +5V TYPICAL (amps) ___0.8

                           TYPICAL (watts) ______14.8

                           MAXIMUM (watts) ______30.4

       BUFFERED STEP PULSE RATE (micro sec) _____5-200

       WRITE PRECOMP (cyl) ______________________300

       REDUCED WRITE CURRENT (cyl) ______________N/A (616)

       LANDING ZONE (cyl)________________________670

       IBM AT DRIVE TYPE ________________________N/A

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-225
ST-225 ST412 MFM

                                                          /Ä4Ä3Ä2Ä1Ä\

                                                          ³ O O O O ³ Power

              o o o o o o o o                             ÀÄÄÄÄÄÄÄÄÄÙ

  ÚData Cable o o o o o o o o  ÚController Cable    1       5 G G 12

 ÍÍÍÍÍÍÍÍÍ ÍÍ ³ ³ ³ ³ ³ ³ ³ ³ ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍÍÍ   ÍÍÍÍÍÍÍÍÍÍÍÍ

              ³ ³ ³ ³ ³ ³ ³ ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄ1

              ³ ³ ³ ³ ³ ³ ³ ³ ÀÄTerminatorÄÙ

              ³ ³ ³ ³ ³ ³ ³ ³

Drive Select->1 2 3 4 ³ ³ ³ À Radial

                ³ ³ ³ ³ ³ ÀÄÄ Reserved

                ³ ÀÂÙ ³ ÀÄÄÄÄ Write Fault

                ³  ³  ÀÄÄÄÄÄÄ Factory Test

                ³  ÀÄÄÄÄÄÄÄÄÄ Never Used (Drive Select 3 and 4)

                À If twisted cable, use Drive Select 2

                              ST - 225

       UNFORMATTED CAPACITY (MB) ________________25.6

       FORMATTED CAPACITY (17 SECTORS) (MB) _____21.4

       ACTUATOR TYPE ____________________________STEPPER

       TRACKS ___________________________________2,460

       CYLINDERS ________________________________615

       HEADS ____________________________________4

       DISCS ____________________________________2

       MEDIA TYPE _______________________________OXIDE

       RECORDING METHOD _________________________MFM

       TRANSFER RATE (mbits/sec) ________________5.0

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.3

       INTERFACE ________________________________ST412

       SECTORS PER DRIVE ________________________41,820

       TPI (TRACKS PER INCH) ____________________588

       BPI (BITS PER INCH) ______________________9,827

       AVERAGE ACCESS (ms) ______________________65

       SINGLE TRACK SEEK (ms) ___________________20

       MAX FULL SEEK (ms) _______________________150

       MTBF (power-on hours) ____________________100,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.4

                           +12V TYPICAL (amps) __0.9

                           +5V TYPICAL (amps) ___0.8

                           TYPICAL (watts) ______14.8

                           MAXIMUM (watts) ______33

       BUFFERED STEP PULSE RATE (micro sec) _____5-200

       WRITE PRECOMP (cyl) ______________________300

       REDUCED WRITE CURRENT (cyl) ______________N/A (616)

       LANDING ZONE (cyl)________________________670

       IBM AT DRIVE TYPE ________________________2

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-251
ST-251 ST412 MFM

                                                          /Ä4Ä3Ä2Ä1Ä\

                                                          ³ O O O O ³ Power

              o o o o o o o o                             ÀÄÄÄÄÄÄÄÄÄÙ

  ÚData Cable o o o o o o o o  ÚController Cable    1       5 G G 12

 ÍÍÍÍÍÍÍÍÍ ÍÍ ³ ³ ³ ³ ³ ³ ³ ³ ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍÍÍ   ÍÍÍÍÍÍÍÍÍÍÍÍ

              ³ ³ ³ ³ ³ ³ ³ ³ 1ÄÄÄÄÄÄÄÄÄÄÄÄ¿

              ³ ³ ³ ³ ³ ³ ³ ³ ÀÄTerminatorÄÙ

              ³ ³ ³ ³ ³ ³ ³ ³

Drive Select->1 2 3 4 ³ ³ ³ À Radial

                ³ ³ ³ ³ ³ ÀÄÄ Reserved

                ³ ÀÂÙ ³ ÀÄÄÄÄ Write Fault

                ³  ³  ÀÄÄÄÄÄÄ Factory Test

                ³  ÀÄÄÄÄÄÄÄÄÄ Never Used (Drive Select 3 and 4)

                À If twisted cable, use Drive Select 2

                          ST - 251

       UNFORMATTED CAPACITY (MB) ________________51.2

       FORMATTED CAPACITY (17 SECTORS) (MB) _____42.8

       ACTUATOR TYPE ____________________________STEPPER

       TRACKS ___________________________________4,920

       CYLINDERS ________________________________820

       HEADS ____________________________________6

       DISCS ____________________________________3

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________MFM

       TRANSFER RATE (mbits/sec) ________________5.0

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.3

       INTERFACE ________________________________ST412

       SECTORS PER DRIVE ________________________83,640

       TPI (TRACKS PER INCH) ____________________777

       BPI (BITS PER INCH) ______________________9,935

       AVERAGE ACCESS (ms) ______________________40/28*

       SINGLE TRACK SEEK (ms) ___________________8

       MAX FULL SEEK (ms) _______________________ /70

       MTBF (power-on hours) ____________________100,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.0/2.5*

                           +12V TYPICAL (amps) __0.5

                           +5V TYPICAL (amps) ___1.0/1.2*

                           TYPICAL (watts) ______11/12*

                           MAXIMUM (watts) ______29/36*

       BUFFERED STEP PULSE RATE (micro sec) _____3-200

       WRITE PRECOMP (cyl) ______________________N/A (821)

       REDUCED WRITE CURRENT (cyl) ______________N/A (821)

       LANDING ZONE (cyl)________________________AUTO PARK

       IBM AT DRIVE TYPE ________________________44, 40, or 3**

       *ST251-0/ST251-1

       **MAY REQUIRE PARTITIONING SOFTWARE

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-252
ST-252 ST412 MFM

(same as ST-251 with Terminator that cannot be removed, therfore

drive must be installed at the end of the daisychain cable.)

                                                          /Ä4Ä3Ä2Ä1Ä\

                                                          ³ O O O O ³ Power

              o o o o o o o o                             ÀÄÄÄÄÄÄÄÄÄÙ

  ÚData Cable o o o o o o o o  ÚController Cable    1       5 G G 12

 ÍÍÍÍÍÍÍÍÍ ÍÍ ³ ³ ³ ³ ³ ³ ³ ³ ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍÍÍ   ÍÍÍÍÍÍÍÍÍÍÍÍ

              ³ ³ ³ ³ ³ ³ ³ ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄ1

              ³ ³ ³ ³ ³ ³ ³ ³ ÀÄTerminatorÄÙ- cannot be removed

              ³ ³ ³ ³ ³ ³ ³ ³

Drive Select->1 2 3 4 ³ ³ ³ À Radial

                ³ ³ ³ ³ ³ ÀÄÄ Reserved

                ³ ÀÂÙ ³ ÀÄÄÄÄ Write Fault

                ³  ³  ÀÄÄÄÄÄÄ Factory Test

                ³  ÀÄÄÄÄÄÄÄÄÄ Never Used (Drive Select 3 and 4)

                À If twisted cable, use Drive Select 2

                          ST - 252

       UNFORMATTED CAPACITY (MB) ________________51.2

       FORMATTED CAPACITY (17 SECTORS) (MB) _____42.8

       ACTUATOR TYPE ____________________________STEPPER

       TRACKS ___________________________________4,920

       CYLINDERS ________________________________820

       HEADS ____________________________________6

       DISCS ____________________________________3

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________MFM

       TRANSFER RATE (mbits/sec) ________________5.0

       SPINDLE SPEED (RPM) ______________________3,600

       INTERFACE ________________________________ST412

       TPI (TRACKS PER INCH) ____________________777

       BPI (BITS PER INCH) ______________________9,935

       AVERAGE ACCESS (ms) ______________________40/28*

       SINGLE TRACK SEEK (ms) ___________________8

       MTBF (power-on hours) ____________________100,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.0/2.5*

                           +12V TYPICAL (amps) __0.5

                           +5V TYPICAL (amps) ___1.0/1.2*

                           TYPICAL (watts) ______11/12*

                           MAXIMUM (watts) ______29/36*

       BUFFERED STEP PULSE RATE (micro sec) _____3-200

       WRITE PRECOMP (cyl) ______________________N/A (821)

       REDUCED WRITE CURRENT (cyl) ______________N/A (821)

       LANDING ZONE (cyl)________________________AUTO PARK

       IBM AT DRIVE TYPE ________________________44, 40, or 3**

       *ST251-0/ST251-1

       **MAY REQUIRE PARTITIONING SOFTWARE

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-253
ST-253  (94205-51) Wren 2 HH ST412 MFM

     Drive Select                                     ÚÄÄÄÄÄÄÄÄÄ¿

     o o o o o o o           1 Terminator             ³ O O O O ³ Power

     o o o o o o o          ÚÄÄÄÄÄÄÄÄÄÄÄÄ¿            \ÄÄÄÄÄÄÄÄÄ/

     1 2 3 4 R r reserved   ÀÄÄÄÄÄÄÄÄÄÄÄÄÙ    1        12 G G 5

     ÍÍÍÍÍÍÍÍÍÍ ÍÍ    ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍÍÍ   ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

       ³     ³                ÀÄController Cable

       ³     ÀÄÄRadial

       ÀÄÄÄÄÄÄÄÄIf twisted cable, use Drive Select 2

                              ST-253

                        94205-51 WREN 2 HH

       UNFORMATTED CAPACITY (MB) ________________51

       FORMATTED CAPACITY (17 SECTORS) (MB) _____43

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________4,795

       CYLINDERS ________________________________989

       HEADS ____________________________________5

       DISCS ____________________________________3

       MEDIA TYPE _______________________________OXIDE

       RECORDING METHOD _________________________MFM

       TRANSFER RATE (mbits/sec) ________________5.0

       SPINDLE SPEED (RPM) ______________________3,600

       INTERFACE ________________________________ST412

       TPI (TRACKS PER INCH) ____________________960

       BPI (BITS PER INCH) ______________________9,535

       AVERAGE ACCESS (ms) ______________________28

       SINGLE TRACK SEEK (ms) ___________________5

       MTBF (power-on hours) ____________________40,000

       POWER REQUIREMENTS: +12V START-UP (amps) _4.5

                           +12V TYPICAL (amps) __1.5

                           +5V START-UP (amps) __1.0

                           +5V TYPICAL (amps) ___0.4

                           TYPICAL (watts) ______20

                           MAXIMUM (watts) ______??

       BUFFERED STEP PULSE RATE (micro sec) _____8-200

       WRITE PRECOMP (cyl) ______________________128

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________*, 17 is close

 * MAY REQUIRE A CONTROLLER WITH BIOS SUPPORT, OR FORMATTING

   AND PARTITIONING SOFTWARE.  ALSO, CHECK TO SEE IF YOUR CMOS SETUP

   HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE.

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-4026
ST-4026 ST412 MFM

                                                     /Ä4Ä3Ä2Ä1Ä\

                                                     ³ O O O O ³ Power

                                                     ÀÄÄÄÄÄÄÄÄÄÙ

    ÚData Cable           ÚController Cable    1       5 G G 12

    ÍÍÍÍÍÍÍÍÍ ÍÍ         ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍÍÍ   ÍÍÍÍÍÍÍÍÍÍÍÍ

                 o o o o                         ÚÄ1

                 o o o o                         ³ ³

   Drive Select->1 2 3 4                         ³ ÃÄ Resistor

                   ³ ³ ³                         ³ ³  Termination Pack

                   ³ ÀÂÙ                         ÀÄÙ

                   ³  ³

                   ³  ÀÄNever Used (Drive Select 3 and 4)

                   ÀÄÄÄÄIf twisted cable, use Drive Select 2

                              ST - 4026

       UNFORMATTED CAPACITY (MB) ________________25.6

       FORMATTED CAPACITY (17 SECTORS) (MB) _____21.4

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________2,460

       CYLINDERS ________________________________615

       HEADS ____________________________________4

       DISCS ____________________________________3

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________MFM

       TRANSFER RATE (mbits/sec) ________________5.0

       SPINDLE SPEED (RPM) ______________________3,600

       INTERFACE ________________________________ST412

       TPI (TRACKS PER INCH) ____________________625

       BPI (BITS PER INCH) ______________________9,617

       AVERAGE ACCESS (ms) ______________________40

       SINGLE TRACK SEEK (ms) ___________________8

       MTBF (power-on hours) ____________________15,000

       POWER REQUIREMENTS: +12V START-UP (amps) _4.0

                           +12V TYPICAL (amps) __1.5

                           +5V TYPICAL (amps) ___1.5

                           TYPICAL (watts) ______25.5

                           MAXIMUM (watts) ______55

       BUFFERED STEP PULSE RATE (micro sec) _____25-50

       WRITE PRECOMP (cyl) ______________________N/A (616)

       REDUCED WRITE CURRENT (cyl) ______________N/A (616)

       LANDING ZONE (cyl)________________________AUTO PARK

       IBM AT DRIVE TYPE ________________________2

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-4038
ST-4038 ST412 MFM

                                                          /Ä4Ä3Ä2Ä1Ä\

                                                          ³ O O O O ³ Power

                                                          ÀÄÄÄÄÄÄÄÄÄÙ

 ÚData Cable                                        1       5 G G 12

 ÍÍÍÍÍÍÍÍÍ ÍÍ                 ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍÍÍ   ÍÍÍÍÍÍÍÍÍÍÍÍ

              o o o o o o o o    Ú1     ÀController Cable

              o o o o o o o o    ³³

Drive Select->1 2 3 4 ³ ³ ³ ³    ³ÃÄ Resistor Termination Pack

                ³ ³ ³ ³ ³ ³ ³    ³³

                ³ ÀÂÙ ³ ³ ³ ³    ÀÙ

                ³  ³  ³ ³ ³ ³

                ³  ³  ³ ³ ³ ³

                ³  ³  ³ ³ ³ À Radial

                ³  ³  ³ ³ ÀÄÄ Recovery Mode

                ³  ³  ³ ÀÄÄÄÄ Write Fault

                ³  ³  ÀÄÄÄÄÄÄ Not Connected

                ³  ÀÄÄÄÄÄÄÄÄÄ Never Used (Drive Select 3 and 4)

                À If twisted cable, use Drive Select 2

                              ST - 4038

       UNFORMATTED CAPACITY (MB) ________________38.2

       FORMATTED CAPACITY (17 SECTORS) (MB) _____31.9

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________3,665

       CYLINDERS ________________________________733

       HEADS ____________________________________5

       DISCS ____________________________________3

       MEDIA TYPE _______________________________OXIDE

       RECORDING METHOD _________________________MFM

       TRANSFER RATE (mbits/sec) ________________5.0

       SPINDLE SPEED (RPM) ______________________3,600

       INTERFACE ________________________________ST412

       TPI (TRACKS PER INCH) ____________________750

       BPI (BITS PER INCH) ______________________9,617

       AVERAGE ACCESS (ms) ______________________40

       SINGLE TRACK SEEK (ms) ___________________8

       MTBF (power-on hours) ____________________25,000

       POWER REQUIREMENTS: +12V START-UP (amps) _4.0

                           +12V TYPICAL (amps) __1.5

                           +5V TYPICAL (amps) ___1.5

                           TYPICAL (watts) ______25.5

                           MAXIMUM (watts) ______56

       BUFFERED STEP PULSE RATE (micro sec) _____10-70

       WRITE PRECOMP (cyl) ______________________300

       REDUCED WRITE CURRENT (cyl) ______________N/A (734)

       LANDING ZONE (cyl)________________________AUTO PARK

       IBM AT DRIVE TYPE ________________________22, 20 or 8

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-4038M
ST-4038M ST412 MFM

       UNFORMATTED CAPACITY (MB) ________________38.2

       FORMATTED CAPACITY (17 SECTORS) (MB) _____31.9

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________3,665

       CYLINDERS ________________________________733

       HEADS ____________________________________5

       DISCS ____________________________________3

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________MFM

       TRANSFER RATE (mbits/sec) ________________5.0

       SPINDLE SPEED (RPM) ______________________3,600

       INTERFACE ________________________________ST412

       TPI (TRACKS PER INCH) ____________________750

       BPI (BITS PER INCH) ______________________9,617

       AVERAGE ACCESS (ms) ______________________40

       SINGLE TRACK SEEK (ms) ___________________8

       MTBF (power-on hours) ____________________15,000

       POWER REQUIREMENTS: +12V START-UP (amps) _4.0

                           +12V TYPICAL (amps) __1.5

                           +5V TYPICAL (amps) ___1.5

                           TYPICAL (watts) ______25.5

                           MAXIMUM (watts) ______56

       BUFFERED STEP PULSE RATE (micro sec) _____10-70

       WRITE PRECOMP (cyl) ______________________N/A (734)

       REDUCED WRITE CURRENT (cyl) ______________N/A (734)

       LANDING ZONE (cyl)________________________AUTO PARK

       IBM AT DRIVE TYPE ________________________8

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-4051
ST-4051 ST412 MFM

                                                          /Ä4Ä3Ä2Ä1Ä\

                                                          ³ O O O O ³ Power

                                                          ÀÄÄÄÄÄÄÄÄÄÙ

 ÚData Cable                                        1       5 G G 12

 ÍÍÍÍÍÍÍÍÍ ÍÍ                 ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍÍÍ   ÍÍÍÍÍÍÍÍÍÍÍÍ

              o o o o o o o o    Ú1     ÀController Cable

              o o o o o o o o    ³³

Drive Select->1 2 3 4 ³ ³ ³ ³    ³ÃÄ Resistor Termination Pack

                ³ ³ ³ ³ ³ ³ ³    ³³

                ³ ÀÂÙ ³ ³ ³ ³    ÀÙ

                ³  ³  ³ ³ ³ ³

                ³  ³  ³ ³ ³ ³

                ³  ³  ³ ³ ³ À Radial

                ³  ³  ³ ³ ÀÄÄ Recovery Mode

                ³  ³  ³ ÀÄÄÄÄ Write Fault

                ³  ³  ÀÄÄÄÄÄÄ Not Connected

                ³  ÀÄÄÄÄÄÄÄÄÄ Never Used (Drive Select 3 and 4)

                À If twisted cable, use Drive Select 2

                              ST - 4051

       UNFORMATTED CAPACITY (MB) ________________50.88

       FORMATTED CAPACITY (17 SECTORS) (MB) _____42.52

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________4,885

       CYLINDERS ________________________________977

       HEADS ____________________________________5

       DISCS ____________________________________3

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________MFM

       TRANSFER RATE (mbits/sec) ________________5.0

       SPINDLE SPEED (RPM) ______________________3,600

       INTERFACE ________________________________ST412

       TPI (TRACKS PER INCH) ____________________960

       BPI (BITS PER INCH) ______________________9,720

       AVERAGE ACCESS (ms) ______________________40

       SINGLE TRACK SEEK (ms) ___________________8

       MTBF (power-on hours) ____________________15,000

       POWER REQUIREMENTS: +12V START-UP (amps) _4.0

                           +12V TYPICAL (amps) __1.5

                           +5V TYPICAL (amps) ___1.5

                           TYPICAL (watts) ______25.5

                           MAXIMUM (watts) ______55

       BUFFERED STEP PULSE RATE (micro sec) _____10-70

       WRITE PRECOMP (cyl) ______________________N/A (978)

       REDUCED WRITE CURRENT (cyl) ______________N/A (978)

       LANDING ZONE (cyl)________________________AUTO PARK

       IBM AT DRIVE TYPE ________________________11 or 17*

 * MAY REQUIRE A CONTROLLER WITH BIOS SUPPORT, OR FORMATTING

   AND PARTITIONING SOFTWARE.  ALSO, CHECK TO SEE IF YOUR CMOS SETUP

   HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE.

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-4053
ST-4053 ST412 MFM

                                                          Ú12ÄGÄGÄ5Ä¿

                                                          ³ 0 0 0 0 ³

 ÚData Cable                    ÚController Cable   1     \Ä1Ä2Ä3Ä4Ä/

 ÍÍÍÍÍÍÍÍÍ ÍÍ                 ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍÍÍ   ÍÍÍÍÍÍÍÍÍÍÍÍ

              o o o o o o o o       1ÄÄÄÄÄÄÄÄÄÄÄÄ¿

              o o o o o o o o       ÀÄÄÄÄÄÄÄÄÄÄÄÄÙ

Drive Select->1 2 3 4 ³ ³ ³ ³          ÀResistor Termination Pack

                ³ ³ ³ ³ ³ ³ ³

                ³ ÀÂÙ ³ ³ ³ ³

                ³  ³  ³ ³ ³ À Radial

                ³  ³  ³ ³ ÀÄÄ Recovery Mode

                ³  ³  ³ ÀÄÄÄÄ Write Fault

                ³  ³  ÀÄÄÄÄÄÄ Not Connected

                ³  ÀÄÄÄÄÄÄÄÄÄ Never Used (Drive Select 3 and 4)

                À If twisted cable, use Drive Select 2

                              ST - 4053

       UNFORMATTED CAPACITY (MB) ________________53.3

       FORMATTED CAPACITY (17 SECTORS) (MB) _____44.5

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________5,120

       CYLINDERS ________________________________1,024

       HEADS ____________________________________5

       DISCS ____________________________________3

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________MFM

       TRANSFER RATE (mbits/sec) ________________5.0

       SPINDLE SPEED (RPM) ______________________3,600

       INTERFACE ________________________________ST412

       TPI (TRACKS PER INCH) ____________________1,031

       BPI (BITS PER INCH) ______________________9,792

       AVERAGE ACCESS (ms) ______________________28

       SINGLE TRACK SEEK (ms) ___________________6

       MTBF (power-on hours) ____________________40,000

       POWER REQUIREMENTS: +12V START-UP (amps) _4.0

                           +12V TYPICAL (amps) __1.3

                           +5V TYPICAL (amps) ___1.3

                           TYPICAL (watts) ______23

                           MAXIMUM (watts) ______55

       BUFFERED STEP PULSE RATE (micro sec) _____3-70

       WRITE PRECOMP (cyl) ______________________N/A (1025)

       REDUCED WRITE CURRENT (cyl) ______________N/A (1025)

       LANDING ZONE (cyl)________________________AUTO PARK

       IBM AT DRIVE TYPE ________________________36 (11 or 17*)

 * MAY REQUIRE A CONTROLLER WITH BIOS SUPPORT, OR FORMATTING

   AND PARTITIONING SOFTWARE.  ALSO, CHECK TO SEE IF YOUR CMOS SETUP

   HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE.

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-406
ST-406 ST412 MFM

                       OPTION SHUNT BLOCK

                            ÚÄÄ\ÄÄÄ/ÄÄ¿

                          1 ³   R     ³ 16

                          2 ³   NC    ³ 15

                          3 ³   NC    ³ 14

                          4 ³   NC    ³ 13

                          5 ³   DS4   ³ 12

                          6 ³   DS3   ³ 11

                          7 ³   DS2   ³ 10

                          8 ³   DS1   ³ 9

                            ÀÄÄÄÄÄÄÄÄÄÙ

                     DS1,DS2,DS3,DS4=DRIVE SELECTED

                         R=RADIAL OPERATION

                              ST - 406

       UNFORMATTED CAPACITY (MB) ________________6.38

       FORMATTED CAPACITY (17 SECTORS) (MB) _____5.0

       ACTUATOR TYPE ____________________________STEPPER

       TRACKS ___________________________________612

       CYLINDERS ________________________________306

       HEADS ____________________________________2

       DISCS ____________________________________1

       MEDIA TYPE _______________________________OXIDE

       RECORDING METHOD _________________________MFM

       TRANSFER RATE (mbits/sec) ________________5.0

       SPINDLE SPEED (RPM) ______________________3,600

       INTERFACE ________________________________ST412

       TPI (TRACKS PER INCH) ____________________345

       BPI (BITS PER INCH) ______________________9,074

       AVERAGE ACCESS (ms) ______________________85

       SINGLE TRACK SEEK (ms) ___________________< 16.67

       MTBF (power-on hours) ____________________11,000

       POWER REQUIREMENTS: +12V START-UP (amps) _3.5

                           +12V TYPICAL (amps) __1.6

                           +5V TYPICAL (amps) ___1.1

                           TYPICAL (watts) ______24.7

                           MAXIMUM (watts) ______50

       BUFFERED STEP PULSE RATE (micro sec) _____5-500

       WRITE PRECOMP (cyl) ______________________128

       REDUCED WRITE CURRENT (cyl) ______________N/A (307)

       LANDING ZONE (cyl)________________________319

       IBM AT DRIVE TYPE ________________________N/A

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-4085
ST-4085 (94155-85) Wren 2 ST412 MFM

      Drive Sel  ÚÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

      o o o o o  ³   Term     1³

      o o o o o  ³ 14 pin dip  ³                      ÚÄÄÄÄÄÄÄÄÄ¿

                 ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÙ                      ³ O O O O ³ Power

      1 2 3 4 Radial                                  \ÄÄÄÄÄÄÄÄÄ/

                           Command ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿1  12 G G 5

     ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

         Data   ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿1  ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

     ÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍ ÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

                              ST-4085

                        94155-85 WREN 2 FH

       UNFORMATTED CAPACITY (MB) ________________85

       FORMATTED CAPACITY (17 SECTORS) (MB) _____71

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________8,192

       CYLINDERS ________________________________1,024

       HEADS ____________________________________8

       DISCS ____________________________________5

       MEDIA TYPE _______________________________OXIDE

       RECORDING METHOD _________________________MFM

       TRANSFER RATE (mbits/sec) ________________5.0

       SPINDLE SPEED (RPM) ______________________3,600

       INTERFACE ________________________________ST412

       TPI (TRACKS PER INCH) ____________________980

       BPI (BITS PER INCH) ______________________9,400

       AVERAGE ACCESS (ms) ______________________28

       SINGLE TRACK SEEK (ms) ___________________5

       MTBF (power-on hours) ____________________40,000

       POWER REQUIREMENTS: +12V START-UP (amps) _4.5

                           +12V TYPICAL (amps) __2.0

                           +5V START-UP (amps) __1.3

                           +5V TYPICAL (amps) ___0.75

                           TYPICAL (watts) ______28

                           MAXIMUM (watts) ______61

       BUFFERED STEP PULSE RATE (micro sec) _____8-200

       WRITE PRECOMP (cyl) ______________________N/A (or 128 for

                                                 the "85P" version)

       REDUCED WRITE CURRENT (cyl) ______________N/A (1024)

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________45, *

 * MAY REQUIRE A CONTROLLER WITH BIOS SUPPORT, OR FORMATTING

   AND PARTITIONING SOFTWARE.  ALSO, CHECK TO SEE IF YOUR CMOS SETUP

   HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE.

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-4086
ST-4086 (94155-86) Wren 2 ST412 MFM

      Drive Sel  ÚÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

      o o o o o  ³   Term     1³

      o o o o o  ³ 14 pin dip  ³                      ÚÄÄÄÄÄÄÄÄÄ¿

                 ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÙ                      ³ O O O O ³ Power

      1 2 3 4 Radial                                  \ÄÄÄÄÄÄÄÄÄ/

                           Command ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿1  12 G G 5

     ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

         Data   ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿1  ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

     ÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍ ÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

                              ST-4086

                        94155-86 WREN 2 FH

       UNFORMATTED CAPACITY (MB) ________________86

       FORMATTED CAPACITY (17 SECTORS) (MB) _____72

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________8,325

       CYLINDERS ________________________________925

       HEADS ____________________________________9

       DISCS ____________________________________5

       MEDIA TYPE _______________________________OXIDE

       RECORDING METHOD _________________________MFM

       TRANSFER RATE (mbits/sec) ________________5.0

       SPINDLE SPEED (RPM) ______________________3,600

       INTERFACE ________________________________ST412

       TPI (TRACKS PER INCH) ____________________960

       BPI (BITS PER INCH) ______________________9,274

       AVERAGE ACCESS (ms) ______________________28

       SINGLE TRACK SEEK (ms) ___________________5

       MTBF (power-on hours) ____________________40,000

       POWER REQUIREMENTS: +12V START-UP (amps) _4.5

                           +12V TYPICAL (amps) __2.0

                           +5V START-UP (amps) __1.3

                           +5V TYPICAL (amps) ___0.75

                           TYPICAL (watts) ______28

                           MAXIMUM (watts) ______61

       BUFFERED STEP PULSE RATE (micro sec) _____8-200

       WRITE PRECOMP (cyl) ______________________N/A (926)

       REDUCED WRITE CURRENT (cyl) ______________N/A (926)

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________46, *

 * MAY REQUIRE A CONTROLLER WITH BIOS SUPPORT, OR FORMATTING

   AND PARTITIONING SOFTWARE.  ALSO, CHECK TO SEE IF YOUR CMOS SETUP

   HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE.

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-4096
ST-4096 ST412 MFM

                                                          Ú12ÄGÄGÄ5Ä¿

                                                          ³ 0 0 0 0 ³

 ÚData Cable                    ÚController Cable   1     \Ä1Ä2Ä3Ä4Ä/

 ÍÍÍÍÍÍÍÍÍ ÍÍ                 ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍÍÍ   ÍÍÍÍÍÍÍÍÍÍÍÍ

              o o o o o o o o       1ÄÄÄÄÄÄÄÄÄÄÄÄ¿

              o o o o o o o o       ÀÄÄÄÄÄÄÄÄÄÄÄÄÙ

Drive Select->1 2 3 4 ³ ³ ³ ³          ÀResistor Termination Pack

                ³ ³ ³ ³ ³ ³ ³

                ³ ÀÂÙ ³ ³ ³ ³

                ³  ³  ³ ³ ³ À Radial

                ³  ³  ³ ³ ÀÄÄ Recovery Mode

                ³  ³  ³ ÀÄÄÄÄ Write Fault

                ³  ³  ÀÄÄÄÄÄÄ Not Connected

                ³  ÀÄÄÄÄÄÄÄÄÄ Never Used (Drive Select 3 and 4)

                À If twisted cable, use Drive Select 2

                              ST - 4096

       UNFORMATTED CAPACITY (MB) ________________96.0

       FORMATTED CAPACITY (17 SECTORS) (MB) _____80.2

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________9,216

       CYLINDERS ________________________________1,024

       HEADS ____________________________________9

       DISCS ____________________________________5

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________MFM

       TRANSFER RATE (mbits/sec) ________________5.0

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.3

       INTERFACE ________________________________ST412

       SECTORS PER DRIVE ________________________156,672

       TPI (TRACKS PER INCH) ____________________1,031

       BPI (BITS PER INCH) ______________________9,792

       AVERAGE ACCESS (ms) ______________________28

       SINGLE TRACK SEEK (ms) ___________________6

       MAX FULL SEEK (ms) _______________________55

       MTBF (power-on hours) ____________________40,000

       POWER REQUIREMENTS: +12V START-UP (amps) _4.0

                           +12V TYPICAL (amps) __1.3**

                           +5V TYPICAL (amps) ___1.3

                           TYPICAL (watts) ______23**

                           MAXIMUM (watts) ______55

       BUFFERED STEP PULSE RATE (micro sec) _____3-70

       WRITE PRECOMP (cyl) ______________________N/A (1025)

       REDUCED WRITE CURRENT (cyl) ______________N/A (1025)

       LANDING ZONE (cyl)________________________AUTO PARK

       IBM AT DRIVE TYPE ________________________35 or 12*

 * MAY REQUIRE A CONTROLLER WITH BIOS SUPPORT, OR FORMATTING

   AND PARTITIONING SOFTWARE.  ALSO, CHECK TO SEE IF YOUR CMOS SETUP

   HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE.

       **1.5 amps/25 watts FOR 2-BOARD ST-4096 ONLY

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-4097
ST-4097 (94155-96) Wren 2 ST412 MFM

      Drive Sel  ÚÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

      o o o o o  ³   Term     1³

      o o o o o  ³ 14 pin dip  ³                      ÚÄÄÄÄÄÄÄÄÄ¿

                 ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÙ                      ³ O O O O ³ Power

      1 2 3 4 Radial                                  \ÄÄÄÄÄÄÄÄÄ/

                           Command ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿1  12 G G 5

     ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

         Data   ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿1  ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

     ÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍ ÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

                              ST-4097

                        94155-96 WREN 2 FH

       UNFORMATTED CAPACITY (MB) ________________96

       FORMATTED CAPACITY (17 SECTORS) (MB) _____80

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________9,216

       CYLINDERS ________________________________1,024

       HEADS ____________________________________9

       DISCS ____________________________________5

       MEDIA TYPE _______________________________OXIDE

       RECORDING METHOD _________________________MFM

       TRANSFER RATE (mbits/sec) ________________5.0

       SPINDLE SPEED (RPM) ______________________3,600

       INTERFACE ________________________________ST412

       TPI (TRACKS PER INCH) ____________________980

       BPI (BITS PER INCH) ______________________9,400

       AVERAGE ACCESS (ms) ______________________28

       SINGLE TRACK SEEK (ms) ___________________5

       MTBF (power-on hours) ____________________40,000

       POWER REQUIREMENTS: +12V START-UP (amps) _4.5

                           +12V TYPICAL (amps) __2.0

                           +5V START-UP (amps) __1.3

                           +5V TYPICAL (amps) ___0.75

                           TYPICAL (watts) ______28

                           MAXIMUM (watts) ______61

       BUFFERED STEP PULSE RATE (micro sec) _____8-200

       WRITE PRECOMP (cyl) ______________________N/A (or 128 for

                                                 the "97P" version)

       REDUCED WRITE CURRENT (cyl) ______________N/A (1024)

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________35 *

 * MAY REQUIRE A CONTROLLER WITH BIOS SUPPORT, OR FORMATTING

   AND PARTITIONING SOFTWARE.  ALSO, CHECK TO SEE IF YOUR CMOS SETUP

   HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE.

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-412
ST-412 ST412 MFM

                       OPTION SHUNT BLOCK

                            ÚÄÄ\ÄÄÄ/ÄÄ¿

                          1 ³   R     ³ 16

                          2 ³   NC    ³ 15

                          3 ³   NC    ³ 14

                          4 ³   NC    ³ 13

                          5 ³   DS4   ³ 12

                          6 ³   DS3   ³ 11

                          7 ³   DS2   ³ 10

                          8 ³   DS1   ³ 9

                            ÀÄÄÄÄÄÄÄÄÄÙ

                     DS1,DS2,DS3,DS4=DRIVE SELECTED

                         R=RADIAL OPERATION

                              ST - 412

       UNFORMATTED CAPACITY (MB) ________________12.76

       FORMATTED CAPACITY (17 SECTORS) (MB) _____10.0

       ACTUATOR TYPE ____________________________STEPPER

       TRACKS ___________________________________1,224

       CYLINDERS ________________________________306

       HEADS ____________________________________4

       DISCS ____________________________________2

       MEDIA TYPE _______________________________OXIDE

       RECORDING METHOD _________________________MFM

       TRANSFER RATE (mbits/sec) ________________5.0

       INTERFACE ________________________________ST412

       TPI (TRACKS PER INCH) ____________________345

       BPI (BITS PER INCH) ______________________9,074

       AVERAGE ACCESS (ms) ______________________85

       SINGLE TRACK SEEK (ms) ___________________< 16.67

       MTBF (power-on hours) ____________________11,000

       POWER REQUIREMENTS: +12V START-UP (amps) _3.5

                           +12V TYPICAL (amps) __1.7

                           +5V TYPICAL (amps) ___1.1

                           TYPICAL (watts) ______25.9

                           MAXIMUM (watts) ______50

       BUFFERED STEP PULSE RATE (micro sec) _____5-500

       WRITE PRECOMP (cyl) ______________________128

       REDUCED WRITE CURRENT (cyl) ______________N/A (307)

       LANDING ZONE (cyl)________________________319

       IBM AT DRIVE TYPE ________________________1

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-419
ST-419 ST412 MFM

                       OPTION SHUNT BLOCK

                            ÚÄÄ\ÄÄÄ/ÄÄ¿

                          1 ³   R     ³ 16

                          2 ³   NC    ³ 15

                          3 ³   NC    ³ 14

                          4 ³   NC    ³ 13

                          5 ³   DS4   ³ 12

                          6 ³   DS3   ³ 11

                          7 ³   DS2   ³ 10

                          8 ³   DS1   ³ 9

                            ÀÄÄÄÄÄÄÄÄÄÙ

                     DS1,DS2,DS3,DS4=DRIVE SELECTED

                         R=RADIAL OPERATION

                              ST - 419

       UNFORMATTED CAPACITY (MB) ________________19.14

       FORMATTED CAPACITY (32 SECTORS) (MB) _____15.0

       ACTUATOR TYPE ____________________________STEPPER

       TRACKS ___________________________________612

       CYLINDERS ________________________________306

       HEADS ____________________________________6

       DISCS ____________________________________3

       MEDIA TYPE _______________________________OXIDE

       RECORDING METHOD _________________________MFM

       TRANSFER RATE (mbits/sec) ________________5.0

       INTERFACE ________________________________ST412

       TPI (TRACKS PER INCH) ____________________345

       BPI (BITS PER INCH) ______________________9,074

       AVERAGE ACCESS (ms) ______________________85

       SINGLE TRACK SEEK (ms) ___________________< 16.67

       MTBF (power-on hours) ____________________11,000

       POWER REQUIREMENTS: +12V START-UP (amps) _3.5

                           +12V TYPICAL (amps) __1.6

                           +5V TYPICAL (amps) ___1.1

                           TYPICAL (watts) ______24.7

                           MAXIMUM (watts) ______50

       BUFFERED STEP PULSE RATE (micro sec) _____5-500

       WRITE PRECOMP (cyl) ______________________128

       REDUCED WRITE CURRENT (cyl) ______________N/A (307)

       LANDING ZONE (cyl)________________________319

       IBM AT DRIVE TYPE ________________________N/A

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-506
ST-506 ST506 MFM

       UNFORMATTED CAPACITY (MB) ________________6.38

       FORMATTED CAPACITY (17 SECTORS) (MB) _____5.0

       ACTUATOR TYPE ____________________________STEPPER

       TRACKS ___________________________________612

       CYLINDERS ________________________________153

       HEADS ____________________________________4

       DISCS ____________________________________2

       MEDIA TYPE _______________________________OXIDE

       RECORDING METHOD _________________________MFM

       TRANSFER RATE (mbits/sec) ________________5.0

       INTERFACE ________________________________ST506

       TPI (TRACKS PER INCH) ____________________255

       BPI (BITS PER INCH) ______________________7,690

       AVERAGE ACCESS (ms) ______________________85

       SINGLE TRACK SEEK (ms) ___________________3

       MTBF (power-on hours) ____________________11,000

       POWER REQUIREMENTS: +12V START-UP (amps) _3.5

                           +12V TYPICAL (amps) __1.6

                           +5V TYPICAL (amps) ___0.7

                           TYPICAL (watts) ______22.7

                           MAXIMUM (watts) ______47

       BUFFERED STEP PULSE RATE (micro sec) _____3 ms ONLY

       WRITE PRECOMP (cyl) ______________________128

       REDUCED WRITE CURRENT (cyl) ______________128

       LANDING ZONE (cyl)________________________157

       IBM AT DRIVE TYPE ________________________N/A

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


Old Conner Periph.
Old Conner Peripherals Drives Specs and Jumper Settings

Older Conner Peripherals products NOT converted to new Seagate model numbers.

Select an interface:

ATA (IDE)

SCSI


Old Conner ATA
Old Conner Peripherals drives, ATA (IDE) Interface:

CFA1080A CFA170A CFA340A CFA810A CFN170A CFN250A CP2024 CP2034 CP2044 CP2044PK CP2064 CP2084 CP2088 CP2124 CP3000	CP30064 CP30064H CP30084 CP30084E CP30104 CP30104H CP30124 CP30174 CP30174E CP30204 CP3022 CP3024 CP30254 CP30254H CP3044	CP30544 CP3104 CP3114 CP3184 CP3204 CP3204F CP324 CP3304 CP3364 CP344 CP3504 CP3544 CP4024 CP4044


Old Conner SCSI
Old Conner Peripherals drives, SCSI Interface:

CFA1080S CFA1275S CFA170S CFA340S CFA540S CFA810S CFA850S CFN170S CP2020 CP30060	CP30080 CP30080E CP30100 CP30170 CP30170E CP3020 CP30200 CP3040 CP30540 CP3100	CP31370 CP3150 CP3180 CP320 CP3200 CP3200F CP3360 CP340 CP3540


Misc ATA (IDE) Conner
Misc ATA (IDE) Conner Peripherals drives needing more specs....

Model      Cap      Cyl   Hd   SPT  Spin   BufK  Access IdleW Family

CP2034       31.9    411   4   38   3486    32   19.0   1.3

CP30174     168.2    326  16   63   4500    32   12.0   1.0

CP324        20.0    752   2   26                             Fat


Misc SCSI Conner
Misc SCSI Conner Peripherals drives needing more specs....

Model      Cap      Cyl   Hd   SPT  Spin   BufK  Access IdleW Family

CP2040       42.6    548  4    38   3486    32   15.0   1.5

CP30170     172                                  13.0         Jaguar

       CP320        20.0    752  2    26


Advantage Family ATA
CFA1080A, CFA170A (CP30174), CFA340A (CP30344), CFA810A - Filepro Advantage

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

 Optional Mini Power

 Power Connector      J2 40 pin I/O Cable Connection

    ÚÄÁÄ¿             ³

    G   5  ÕÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

  Íµ0 0 0ÆÍµ::::::::::ú::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

      12   ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                      ³

                      ÀÄÄÄ pin-20 removed

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º              ÚÄÄÄÄ  Compatibility Mode

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼              ³        ATA ON, ISA OFF

                                ³

                                ³ ÚÄÄ  Master ON, Slave OFF (C/D)

                                ³ ³

    (TOP)         o o o o o   o o o1

Option Block   ÍÍÍ  o o o o   o o o2ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

   (BOTTOM)       ÀÄÄÄÂÄÄÄÙ   ³

                      ³       ³

          Reserved ÄÄÄÙ       ³

              Reserved  ÄÄÄÄÄÄÙ

Model      Cap      Cyl   Hd   SPT  Spin   BufK  Access IdleW Family

CFA1080A   1082.2   2097  16   63   4500   256   10.5   4.5   Advantage

CFA170A     171.3    332  16   63   4011    64   13.0   3.8   Advantage

CFA340A     343.2    665  16   63   4011    64   13.0   3.8   Advantage

CFA810A     811.3   1572  16   63   4500   256   10.5   4.5   Advantage


Trigger Family ATA
CFN170A, CFN250A - Trigger

           TOP       ÚÄ 44-pin I/O Connector (* see below)

                     ³                      ÚÄÄ Factory test

                     ³                     oÁo

                   ::::::::::::ù::::::::1  o o

              ÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                               ³

    pin-20 removed for keying ÄÙ              o-o  Master ON, Slave OFF

                                              o-o  CAM on, ISA off

 * Drive uses +5vdc power supplied to the drive

   via the interface connector. The drive does

   NOT make use of a +12vdc power line.

   pin-41  +5vdc (Logic)

   pin-42  +5vdc (Motor)

   pin-43  Ground

   pin-44  Reserved

Model      Cap      Cyl   Hd   SPT  Spin   BufK  Access IdleW Family

CFN170A     168.2    326  16   63   4500    32   12.0   1.0   Trigger

CFN250A     252.3    489  16   63   4500    32   12.0   1.0   Trigger


CP2024
CP2024 - Kato

           TOP       ÚÄ 44-pin I/O Connector (* see below)

                     ³                      ÚÄÄ Factory test

                     ³                     oÁo

                   ::::::::::::ù::::::::1  o o

              ÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                               ³       (Back)

    pin-20 removed for keying ÄÙ              o-o  Reserved

                                              o-o  Master ON, Slave OFF

                                      (Front)

 * Drive uses +5vdc power supplied to the drive

   via the interface connector. The drive does

   NOT make use of a +12vdc power line.

   pin-41  +5vdc (Logic)

   pin-42  +5vdc (Motor)

   pin-43  Ground

   pin-44  Reserved

Model      Cap      Cyl   Hd   SPT  Spin   BufK  Access IdleW Family

CP2024       20      653   2   32                23           Kato


CP2044
CP2044, CP2044PK

           TOP       ÚÄ 44-pin I/O Connector (* see below)

                     ³                      ÚÄÄ Factory test

                     ³                     oÁo

                   ::::::::::::ù::::::::1  o o

              ÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                               ³                ÚÄ this specific pin not used

    pin-20 removed for keying ÄÙ      Cable ÄÒo o

                                     Select  Óo=o ÄÄ Master ON, Slave OFF

                                              ³

                                     (Front)  ÀÄÄ pin common to Master or

                                                   Cable Select (90ø)

CP2044PK

           TOP       ÚÄ 44-pin I/O Connector (* see below)

                     ³                      ÚÄÄ Factory test

                     ³                     oÁo

                   ::::::::::::ù::::::::1  o o

              ÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                               ³                ÚÄ this specific pin not used

    pin-20 removed for keying ÄÙ      Slave ÄÒo o

                                             Óo=o ÄÄ Master

                                              ³

                                     (Front)  ÀÄÄ pin common to Master or

                                                   Slave jumper (90ø)

 * Drive uses +5vdc power supplied to the drive

   via the interface connector. The drive does

   NOT make use of a +12vdc power line.

   pin-41  +5vdc (Logic)

   pin-42  +5vdc (Motor)

   pin-43  Ground

   pin-44  Reserved

Model      Cap      Cyl   Hd   SPT  Spin   BufK  Access IdleW Family

CP2044PK     42.6    980   5   17   3486    32   15.0   1.5


CP2064
CP2064 - Sahara

           TOP       ÚÄ 44-pin I/O Connector (* see below)

                     ³                      ÚÄÄ Factory test

                     ³                     oÁo

                   ::::::::::::ù::::::::1  o o

              ÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                               ³                ÚÄ this specific pin not used

    pin-20 removed for keying ÄÙ      Slave ÄÒo o

                                             Óo=o ÄÄ Master

                                              ³

                                     (Front)  ÀÄÄ pin common to Master or

                                                   Slave jumper (90ø)

 * Drive uses +5vdc power supplied to the drive

   via the interface connector. The drive does

   NOT make use of a +12vdc power line.

   pin-41  +5vdc (Logic)

   pin-42  +5vdc (Motor)

   pin-43  Ground

   pin-44  Reserved

Model      Cap      Cyl   Hd   SPT  Spin   BufK  Access IdleW Family

CP2064       64.0    823   4   38   3486    32   19.0   1.3   Sahara


Pancho Family ATA
CP2084, CP2124 - Pancho

           TOP       ÚÄ 44-pin I/O Connector (* see below)

                     ³                      ÚÄÄ Factory test

                     ³                     oÁo

                   ::::::::::::ù::::::::1  o o

              ÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                               ³                ÚÄ this specific pin not used

    pin-20 removed for keying ÄÙ      Cable ÄÒo o

                                     Select  Óo=o ÄÄ Master ON, Slave OFF

                                              ³

                                     (Front)  ÀÄÄ pin common to Master or

                                                   Cable Select (90ø)

 * Drive uses +5vdc power supplied to the drive

   via the interface connector. The drive does

   NOT make use of a +12vdc power line.

   pin-41  +5vdc (Logic)

   pin-42  +5vdc (Motor)

   pin-43  Ground

   pin-44  Reserved

Model      Cap      Cyl   Hd   SPT  Spin   BufK  Access IdleW Family

CP2084       85.2    548   8   38   3486    32   19.0   1.2   Pancho

CP2124      121.7    762   8   39   3743    32   16.0   1.2   Pancho


Honshu Family ATA
CP2088 - Honshu

           TOP       ÚÄ 44-pin I/O Connector (* see below)

                     ³                      ÚÄÄ Factory test

                     ³                     oÁo

                   ::::::::::::ù::::::::1  o o

              ÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                               ³                ÚÄ this specific pin not used

    pin-20 removed for keying ÄÙ      Slave ÄÒo o

                                             Óo=o ÄÄ Master

                                              ³

                                     (Front)  ÀÄÄ pin common to Master or

                                                   Slave jumper (90ø)

 * Drive uses +5vdc power supplied to the drive

   via the interface connector. The drive does

   NOT make use of a +12vdc power line.

   pin-41  +5vdc (Logic)

   pin-42  +5vdc (Motor)

   pin-43  Ground

   pin-44  Reserved

Model      Cap      Cyl   Hd   SPT  Spin   BufK  Access IdleW Family

CP2088       85.2    548   8   38   3486    32   19.0   1.5   Honshu


Allegheny Family ATA
CP3000, CP3024 - Allegheny

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

        Optional Mini Power  ÚÄÄ J2 40 pin I/O Cable Connection

        Power Connector      ³    pin-20 removed

           ÚÄÁÄ¿             ³

           G   5  ÕÍÍÍÍÍÍÍÍÍ ³ÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

         Íµ0 0 0ÆÍµ::::::::::ú::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

             12   ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

 (Back)

            o o ÄÄ Active (use when Single drive system)

            o o ÄÄ DSP (Slave present used on Master)

            o o ÄÄ Master ON, Slave OFF (C/D)

            o o ÄÄ HSP (may be used on a Slave to make it more

                        recognizable to some Masters)

 (Front)

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

                              ÚÄÄ LED

    (TOP)         o o o o o   o

Option Block   ÍÍÍ  o o o o   o ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

   (BOTTOM)       ÀÄÄÄÂÄÄÄÙ

                      ³

          Reserved ÄÄÄÙ

Model      Cap      Cyl   Hd   SPT  Spin   BufK  Access IdleW Family

CP3000       42.6    980   5   17   3557     8   28.0   2.0   Allegheny

CP3024       21.4    615   4   17   3574     8   27.0   2.0


CP30064
CP30064 - Allegheny

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

        Optional Mini Power  ÚÄÄ J2 40 pin I/O Cable Connection

        Power Connector      ³    pin-20 removed

           ÚÄÁÄ¿             ³

           G   5  ÕÍÍÍÍÍÍÍÍÍ ³ÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

         Íµ0 0 0ÆÍµ::::::::::ú::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

             12   ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                                                     (Back)

                                  Reserved ÄÄÄ o o

                      Master ON, Slave OFF ÄÄÄ o o

                       Slave Present (DSP) ÄÄÄ o o

                                                     (Front)

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

                              ÚÄÄÄÄ LED

                              ³ ÚÄÄ Reserved (these pins may be missing)

    (TOP)         o o o o o   o o

Option Block   ÍÍÍ  o o o o   o o ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

   (BOTTOM)       ÀÄÄÄÂÄÄÄÙ

                      ³

          Reserved ÄÄÄÙ

Model      Cap      Cyl   Hd   SPT  Spin   BufK  Access IdleW Family

CP30064      60.8    762   4   39   3400    64   19.0   2.8   Allegheny


Allegheny Family ATA
CP30064H, CP30104H - Allegheny

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

        Optional Mini Power  ÚÄÄ J2 40 pin I/O Cable Connection

        Power Connector      ³    pin-20 removed

           ÚÄÁÄ¿             ³

           G   5  ÕÍÍÍÍÍÍÍÍÍ ³ÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

         Íµ0 0 0ÆÍµ::::::::::ú::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

             12   ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                                                     (Back)

                                  Reserved ÄÄÄ o o

                       Slave Present (DSP) ÄÄÄ o o ÄÂÄ (Some configs reverse

                      Master ON, Slave OFF ÄÄÄ o o ÄÙ   these two functions)

                                                     (Front)

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

                              ÚÄÄÄÄ LED

                              ³ ÚÄÄ Reserved (these pins may be missing)

    (TOP)         o o o o o   o o

Option Block   ÍÍÍ  o o o o   o o ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

   (BOTTOM)       ÀÄÄÄÂÄÄÄÙ

                      ³

          Reserved ÄÄÄÙ

Model      Cap      Cyl   Hd   SPT  Spin   BufK  Access IdleW Family

CP30064H     60.8    762   4   39   3399    32   19.0   2.8   Allegheny

CP30104H    121.7    762   8   39   3399    34   19.0   2.8   Allegheny


CP30084
CP30084 - Hopi

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

        Optional Mini Power  ÚÄÄ J2 40 pin I/O Cable Connection

        Power Connector      ³    pin-20 removed

           ÚÄÁÄ¿             ³

           G   5  ÕÍÍÍÍÍÍÍÍÍ ³ÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

         Íµ0 0 0ÆÍµ::::::::::ú::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

             12   ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                                                     (Back)

                      Master ON, Slave OFF ÄÄÄ o o

                       Slave Present (DSP) ÄÄÄ o o

                                  Reserved ÄÄÄ o o

                                                     (Front)

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

                              ÚÄÄÄÄ LED

                              ³

    (TOP)         o o o o o   o

Option Block   ÍÍÍo o o o o   o ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

   (BOTTOM)       ÀÄÄÄÂÄÄÄÙ

                      ³

          Reserved ÄÄÄÙ

Model      Cap      Cyl   Hd   SPT  Spin   BufK  Access IdleW Family

CP30084      84.1    526   8   39   3400    64   19.0   2.8   Hopi


Jaguar Family ATA
CP30084E, CP30174E - Jaguar

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

        Optional Mini Power  ÚÄÄ J2 40 pin I/O Cable Connection

        Power Connector      ³    pin-20 removed

           ÚÄÁÄ¿             ³

           G   5  ÕÍÍÍÍÍÍÍÍÍ ³ÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

         Íµ0 0 0ÆÍµ::::::::::ú::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

             12   ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                                      o o o

                                      o o o

                                      ³ ³ ÀÄ  Master ON, Slave OFF

                                      ³ ÀÄÄÄ  Reserved

                                      ÀÄÄÄÄÄ  CAM compatability (these

                                                  pins may be missing)

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

                              ÚÄÄÄÄ LED

                              ³ ÚÄÄ Reserved (these pins may be missing)

    (TOP)         o o o o o   o o

Option Block   ÍÍÍ  o o o o   o o ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

   (BOTTOM)       ÀÄÄÄÂÄÄÄÙ

                      ³

          Reserved ÄÄÄÙ

Model      Cap      Cyl   Hd   SPT  Spin   BufK  Access IdleW Family

CP30084E     85.0    903   4   46   3822    32   17.0   2.5   Jaguar

CP30174E    170.1    903   8   46   3822    64   17.0   2.5   Jaguar


CP30104
CP30104 - Hopi

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

        Optional Mini Power  ÚÄÄ J2 40 pin I/O Cable Connection

        Power Connector      ³    pin-20 removed

           ÚÄÁÄ¿             ³

           G   5  ÕÍÍÍÍÍÍÍÍÍ ³ÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

         Íµ0 0 0ÆÍµ::::::::::ú::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

             12   ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

             P/N(s): 07590-xxx, 03790-xxx,             P/N(s): 02730-001

                                02730-003     (Back)           02730-002

                                  Reserved ÄÄÄ o o ÄÄÄ Reserved

                      Master ON, Slave OFF ÄÄÄ o o ÄÄÄ Slave Present (DSP)

                       Slave Present (DSP) ÄÄÄ o o ÄÄÄ Master ON, Slave OFF

                                              (Front)

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

                              ÚÄÄÄÄ LED

                              ³ ÚÄÄ Reserved (these pins may be missing)

    (TOP)         o o o o o   o o

Option Block   ÍÍÍ  o o o o   o o ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

   (BOTTOM)       ÀÄÄÄÂÄÄÄÙ

                      ³

          Reserved ÄÄÄÙ

Model      Cap      Cyl   Hd   SPT  Spin   BufK  Access IdleW Family

CP30104     121.7    762   8   39   3400    64   19.0   2.8   Hopi


Monterey Family ATA
CP30124, CP30254, CP30254H - Monterey

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

 Optional Mini Power

 Power Connector      J2 40 pin I/O Cable Connection

    ÚÄÁÄ¿             ³

    G   5  ÕÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

  Íµ0 0 0ÆÍµ::::::::::ú::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

      12   ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                      ³

                      ÀÄÄÄ pin-20 removed

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º              ÚÄÄÄÄ  Compatibility Mode

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼              ³        ATA ON, ISA OFF

                                ³

                                ³ ÚÄÄ  Master ON, Slave OFF (C/D)

                                ³ ³

    (TOP)         o o o o o   o o o1

Option Block   ÍÍÍ  o o o o   o o o2ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

   (BOTTOM)       ÀÄÄÄÂÄÄÄÙ   ³

                      ³       ³

          Reserved ÄÄÄÙ       ³

              Reserved  ÄÄÄÄÄÄÙ

Model      Cap      Cyl   Hd   SPT  Spin   BufK  Access IdleW Family

CP30124     126.0    895   5   55   4542    32   14.0   3.1   Monterey

CP30254(H)  252.0    895  10   55   4542    64   14.0   3.1   Monterey


CP30204
CP30204 - Cougar

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

        Optional Mini Power  ÚÄÄ J2 40 pin I/O Cable Connection

        Power Connector      ³    pin-20 removed

           ÚÄÁÄ¿             ³

           G   5  ÕÍÍÍÍÍÍÍÍÍ ³ÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

         Íµ0 0 0ÆÍµ::::::::::ú::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

             12   ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

     (Back)

             o o ÄÄ Spindle Synch                    (Back)

             o o ÄÄ DASP (Drive Active, Slave

    (Front)          Preset default ON)       o o ÄÄÄ Master ON, Slave OFF

                                              o o ÄÄÄ Disable spin up

                                              o o ÄÄÄ Reserved

                                              o o ÄÄÄ Reserved (default ON)

                                                     (Front)

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

                              ÚÄÄÄÄ LED

                              ³ ÚÄÄ Spindle Synch

    (TOP)         o o o o o   o o

Option Block   ÍÍÍo o o o o   o o ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

   (BOTTOM)       ÀÄÄÄÂÄÄÄÙ

                      ³

          Reserved ÄÄÄÙ

Model      Cap      Cyl   Hd   SPT  Spin   BufK  Access IdleW Family

CP30204     212.6    683  16   38   4498   256   12.0   5.2   Cougar


CP3022

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

        Optional Mini Power  ÚÄÄ J2 40 pin I/O Cable Connection

        Power Connector      ³    pin-20 removed

           ÚÄÁÄ¿             ³

           G   5  ÕÍÍÍÍÍÍÍÍÍ ³ÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

         Íµ0 0 0ÆÍµ::::::::::ú::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

             12   ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

 (Back)              SINGLE    MASTER    SLAVE

     E6     o o ÄÄ   Open      Closed    Closed

     E5     o o ÄÄ   Closed    Open      Open

     E7     o o ÄÄ   Closed    Closed    Open

 (Front)

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

                              ÚÄÄ LED

    (TOP)         o o o o o   o

Option Block   ÍÍÍ  o o o o   o ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

   (BOTTOM)       ÀÄÄÄÂÄÄÄÙ

                      ³

          Reserved ÄÄÄÙ

Model      Cap      Cyl   Hd   SPT  Spin   BufK  Access IdleW Family

CP3022       21.4    636   2   33                27.0


CP3044
CP3044 - Sierra

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

        Optional Mini Power  ÚÄÄ J2 40 pin I/O Cable Connection

        Power Connector      ³    pin-20 removed

           ÚÄÁÄ¿             ³

           G   5  ÕÍÍÍÍÍÍÍÍÍ ³ÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

         Íµ0 0 0ÆÍµ::::::::::ú::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

             12   ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

 (Back)

            o o ÄÄ Active (use when Single drive system)

            o o ÄÄ DSP (Slave present used on Master)

            o o ÄÄ Master ON, Slave OFF (C/D)

            o o ÄÄ Reserved (HSP)

 (Front)

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

                              ÚÄÄ LED

    (TOP)         o o o o o   o

Option Block   ÍÍÍ  o o o o   o ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

   (BOTTOM)       ÀÄÄÄÂÄÄÄÙ

                      ³

          Reserved ÄÄÄÙ

Model      Cap      Cyl   Hd   SPT  Spin   BufK  Access IdleW Family

CP3044       42.6    980   5   17   3557     8   25.0   2.0   Sierra


Aegean Family ATA
CP30544 - Aegean

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

 Optional Mini Power

 Power Connector      ÚÄ J2 40 pin I/O Cable Connection (pin-20 removed)

    ÚÄÁÄ¿             ³

    G   5  ÕÍÍÍÍÍÍÍÍÍ ³ÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

  Íµ0 0 0ÆÍµ::::::::::ú::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

      12   ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                  ÚÄo o  E2

     ISA mode  ÄÄÄÅÄo o  E3

 E2, E3, E4       ÀÄo o  E4

                  ÚÄo o  E5                        (Back)

                  ÃÄo o  E6 Ä Spin Synch

 ATA/CAM mode  ÄÄÄÅÄo o  E7                    Jumper Block B

 E5, E6, E7, E8   ÀÄo o  E8            ÚÄÄÄÄÄÄ DASP (default ON)

                                       ³ ÚÄÄÄÄ Spindle Synch on pin-39

                                      oÁoÁo

                                        o o ÄÄ Master ON, Slave OFF (C/D)

                                        o o ÄÄ ATA ON, ISA OFF

                                        o o ÄÄ No spin on power on

                                        o o ÄÄ Reserved (these pins may

                                                be missing)

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»                                 (Front)

  º  Front View  º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

                  ÚÄÄÄÄÄÄ  Master ON, Slave OFF (C/D), alternate to

                  ³         drive select on jumper block B

                  ³ ÚÄÄÄÄ  Compatibility Mode

                  ³ ³        ATA ON, ISA OFF

    (TOP)         ³ ³

                  o o o   o o o o   o o

Option Block   ÍÍÍo o ³   o o o o   o o ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                      ÀÄÄÄÂÄÄÄÄÄÙ   ³ ³

  (BOTTOM)                ³         ³ ÀÄÄ Spindle Synch

               Reserved ÄÄÙ         ÀÄÄÄÄ LED

Model      Cap      Cyl   Hd   SPT  Spin   BufK  Access IdleW Family

CP30544     527.9   1023  16   63   5400   256   10.0   5.2   Aegean


Fat Family ATA
CP3104 , CP3114, CP3184, CP344 - Fat 100, Fat 80, Fat 40

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                      J2 40 pin I/O Cable Connection

                      ³

           ÕÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

  ÍÍÍÍÍÍÍÍÍµ::::::::::ú::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

   o o o o ÔÍÍÍÍÍÍÍÍÍÍ³ÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

   o o o o            ³

   ³ ³ ³ ³            ÀÄÄÄ pin-20 removed

   ³ ³ ³ ³

   ³ ³ ³ ³

   ³ ³ ³ ÀÄÄ Activity (used when single drive system)

   ³ ³ ÀÄÄÄÄ Slave Present (DSP)

   ³ ÀÄÄÄÄÄÄ Master ON, Slave OFF (C/D)

   ÀÄÄÄÄÄÄÄÄ HSP (used on Slave if not recognized)

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

                              ÚÄÄÄÄ LED

                              ³

    (TOP)         o o o o o o o

Option Block   ÍÍÍ  o o o o   o ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

   (BOTTOM)       ÀÄÄÄÂÄÄÄÄÄÙ

                      ³

          Reserved ÄÄÄÙ

Model      Cap      Cyl   Hd   SPT  Spin   BufK  Access IdleW Family

CP3104      104.8    776   8   33   3574    32   25.0   2.9   Fat 100

CP3114      112.4    832   8   33   3574    32   25.0   2.9   Fat

CP3184       84.3    832   6   33   3575    32   25.0   2.9   Fat 80

CP344        42.8    805   4   26                29           Fat 40


CP3204F
CP3204F, CP3204 - Rambo

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

        Optional Mini Power  ÚÄÄ J2 40 pin I/O Cable Connection

        Power Connector      ³    pin-20 removed

           ÚÄÁÄ¿             ³

           G   5  ÕÍÍÍÍÍÍÍÍÍ ³ÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

         Íµ0 0 0ÆÍµ::::::::::ú::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

             12   ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

            (o)o o   (HORIZONTAL CONFIGURATION, Common, side to side)

            (o)o o

             ³ ³ ÀÄ  DSP (Slave Present used on Master)

             ³ ÀÄÄÄ  Master ON, Slave OFF

             ÀÄÄÄÄÄ  Reserved (Usually missing, may be present)

                     (VERTICAL CONFIGURATION, Rare, back to front)

             o o  ÄÄ Reserved

             o o  ÄÄ Master ON, Slave OFF

             o o  ÄÄ DSP (Slave Present used on Master)

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

                                  Reserved Ä¿

                                            ³

                                        ÚÄÄÄÁÄÄÄ¿

    (TOP)                               o o o o o   o

Option Block   ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ o o o o o   o Í

   (BOTTOM)                                         ³

                                            LED ÄÄÄÄÙ

Model      Cap      Cyl   Hd   SPT  Spin   BufK  Access IdleW Family

CP3204F     212.6    683  16   38   3485    64   16.0   3.5   Rambo

CP3204      212.6    683  16   38                19.0


Summit Family ATA
CP3304, CP3364, CP3504 - Summit

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                          ÚÄÄ J2 40 pin I/O Cable Connection

                          ³    pin-20    removed

                          ³

               ÕÍÍÍÍÍÍÍÍÍ ³ÍÍÍÍÍÍÍÍÍ¸    /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

             ÍÍµ::::::::::ú::::::::1ÆÍÍÍÍ³ 0 0 0 0 ³ÍÍ

               ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾    ÀÄ5ÄGÄGÄ12Ù    BOTTOM

     (Back)

             oÂÄÄÄ Spindle Synch                    (Back)

             o´

             oÁÄÄÄ Slave Present (DSP)        o o ÄÄÄ Master ON, Slave OFF

    (Front)                                   o o ÄÄÄ Disable spin up

                                              o o ÄÂÄ Reserved

                                              o o ÄÙ

                                                     (Front)

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

                              ÚÄÄÄÄ LED

                              ³ ÚÄÄ Spindle Synch

    (TOP)         o o o o o   o o

Option Block   ÍÍÍo o o o o   o o ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

   (BOTTOM)       ÀÄÄÄÂÄÄÄÙ

                      ³

          Reserved ÄÄÄÙ

Model      Cap      Cyl   Hd   SPT  Spin   BufK  Access IdleW Family

CP3304      340.1    659  16   63   3828   256   12.0   4.4   Summit

CP3364      362.2    702  16   63   4498   256   12.0   6.6   Summit

CP3504      509.3    987  16   63   3828   256   12.0   4.4   Summit


CP3544
CP3544 - Summit

CP3544 - Summit

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                          ÚÄÄ J2 40 pin I/O Cable Connection

                          ³    pin-20    removed

                          ³

               ÕÍÍÍÍÍÍÍÍÍ ³ÍÍÍÍÍÍÍÍÍ¸    /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

             ÍÍµ::::::::::ú::::::::1ÆÍÍÍÍ³ 0 0 0 0 ³ÍÍ

               ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾    ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                     ooooooo ¿

                     ooooooo ÁÄ PN 09400-001 only (see * below)

              (Back)

Spindle Synch ÄÂo                                   (Back)

               Ão

Slave Present ÄÁo                             o o ÄÄÄ Master ON, Slave OFF

 (DSP)                                        o o ÄÄÄ Disable spin up

              (Front)                         o o ÄÂÄ Reserved

                                              o o ÄÙ  (Spare Jumper)

                                                     (Front)

     * detail: o o o o o o o

               ³ ³ ³ ³ ³ ³ ÀÄ  E12 ÄÄ ATA - DMARQ on J2, pin-21

               ³ ³ ³ ³ ³ ÀÄÄÄ  E11 ÄÄ ATA - DMACK on J2, pin-29

               ³ ³ ³ ³ ÀÄÄÄÄÄ  E10 ÄÄ ATA - Spin Synch on J2, pin-28

               ³ ³ ³ ÀÄÄÄÄÄÄÄ  E9  ÄÄ ATA - IORDY on J2, pin-27

               ³ ³ ÀÄÄÄÄÄÄÄÄÄ  E8  ÄÄ ISA - DMACK on J2, pin-27

               ³ ÀÄÄÄÄÄÄÄÄÄÄÄ  E7  ÄÄ ISA - DMARQ on J2, pin-29

               ÀÄÄÄÄÄÄÄÄÄÄÄÄÄ  E6  ÄÄ ISA - DMAEN on J2, pin-21

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

                              ÚÄÄÄÄ LED

                              ³ ÚÄÄ Spindle Synch

    (TOP)         o o o o o   o o

Option Block   ÍÍÍo o o o o   o o ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

   (BOTTOM)       ÀÄÄÄÂÄÄÄÙ

                      ³

          Reserved ÄÄÄÙ

Model      Cap      Cyl   Hd   SPT  Spin   BufK  Access IdleW Family

CP3544      527.9   1023  16   63   4500   256   12.0   6.6   Summit


Stubby Family ATA
CP4024, CP4044 - Stubby

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                                                        TOP (HDA)

             ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

       (Back)  oÂÄ pin-27 IORDY                         BOTTOM

 Host Active   o´

 Status       1oÁÄ pin-39 DASP

                     ::::::::::::ú::::::::1¾ ÄÄ 44-pin I/O and power

                 ÚÄÄÄ Slave Present (used when either Master or Slave)

                 ³ ÚÄ Master ON, Slave OFF

                 o o

                 o o

   * Drive uses +5vdc power supplied to the drive

     via the interface connector. The drive does

     NOT make use of a +12vdc power line.

     pin-41  +5vdc (Logic)

     pin-42  +5vdc (Motor)

     pin-43  Ground

     pin-44  Reserved

Model      Cap      Cyl   Hd   SPT  Spin   BufK  Access IdleW Family

CP4024       21.5    620   2   34                29.0         Stubby

             21.4    615   4   17

CP4044       42.6   1096   2   38                29.0         Stubby

                    42.6    980   5   17


Advantage Family SCSI
CFA1275S, CFA850S - Filepro Advantage

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                  50 pin I/O Cable Connection J2

                  ³

               ÕÍÍÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

             ÍÍµ::::::::::::::::::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

               ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                ÚÄÄTResÄÄ1    ÚÄÄTResÄÄ1

                ÀÄÄÄÄÄÄÄÄÙ    ÀÄÄÄÄÄÄÄÄÙ

                       oÂo               o o o o

                        ³                o o o o

     Enable Terminator ÄÙ                ³ ³ ³ ³

      Power                              ³ ³ ³ ÀÄÄ Disable Spin

                                         ³ ³ ÀÄÄÄÄ ID 4

                                         ³ ÀÄÄÄÄÄÄ ID 2

                                         ÀÄÄÄÄÄÄÄÄ ID 1

                                                   ID 0 no jumpers

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

                 ÚÄÄÄÄÄÄÄÄÄÄÄ Disable Spin

                 ³   ÚÄÄÄÄÄÄÄ SCSI ID's (none for ID0)

  (TOP)          ³   ³

                 ³ ÚÄÁÄ¿          J3

                 ³ 4 2 1

                 o o o o    o o o o o   o o

               Í o o o oÍÍÍ   o o o o   o o ÍÍÍÍÍÍÍÍPWAÍÍÍÍÍÍÍÍÍÍ

                            ³ ÀÄÄÂÄÄÙ   ³ ³

  (BOTTOM)      J4          ³    ³      ³ ÀÄÄ Spindle Synch

                            ³    ³      ÀÄÄÄÄ LED Driver

                            ³    ÀÄÄÄÄÄÄÄÄÄÄÄ Reserved

                            ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ pin removed

Model      Cap      Cyl   Hd   SPT  Spin   BufK  Access IdleW Family

CFA1275S   1278     3613  6   115   4500   256   12.0   3.9   Advantage

CFA850S     852     3613  4   115   4500   256   12.0   3.9   Advantage


Advantage Family SCSI
CFA170S, CFA340S, CP30170, CP30340 - Filepro Advantage

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                  50 pin I/O Cable Connection J2

                  ³

               ÕÍÍÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

             ÍÍµ::::::::::::::::::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

             J1ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                ÚÄÄTResÄÄ1    ÚÄÄTResÄÄ1

                ÀÄÄÄÄÄÄÄÄÙ    ÀÄÄÄÄÄÄÄÄÙ

                            o¿

                            oÁÄ Enable Term Power

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

               ÚÄÄÄÄÄÄÄÄÄÄÄÄÄ Reserved

               ³ ÚÄÄÄÄÄÄÄÄÄÄÄ Disable Spin

               ³ ³   ÚÄÄÄÄÄÄÄ SCSI ID's (none for ID0)

  (TOP)        ³ ³   ³

               ³ ³ ÚÄÁÄ¿          J3

               ³ ³ 4 2 1

               o o o o o    o o o o o   o o

             Í o o o o oÍÍÍ   o o o o   o o ÍÍÍÍÍÍÍÍPWAÍÍÍÍÍÍÍÍÍÍ

                            ³ ÀÄÄÂÄÄÙ   ³ ³

  (BOTTOM)      J4          ³    ³      ³ ÀÄÄ Reserved

                            ³    ³      ÀÄÄÄÄ LED Driver

                            ³    ÀÄÄÄÄÄÄÄÄÄÄÄ Reserved

                            ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ pin removed

Model      Cap      Cyl   Hd   SPT  Spin   BufK  Access IdleW Family

CFA170S     171.6   2111  2    79   4011    64   13.0   3.5   Advantage CP30170

CFA340S     343.3   2111  4    79   4011    64   13.0   3.5   Advantage CP30340


CFA540S
CFA540S - Filepro Advantage

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

              50 pin I/O Cable Connection J2

              ³

           ÕÍÍÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

         ÍÍµ::::::::::::::::::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

         J1ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

            ÚÄÄTResÄÄ1    ÚÄÄTResÄÄ1

            ÀÄÄÄÄÄÄÄÄÙ    ÀÄÄÄÄÄÄÄÄÙ

                      oÂo                         (Back)

                       ³

           Term Power ÄÙ                      o o ÄÄÄÄ Disable Spin

            Enable                            o o ÄÄÄÄ ID 4

                                              o o ÄÄÄÄ ID 2

                                              o o ÄÄÄÄ ID 1

                                                       ID 0 = no ID jumpers

                                            J7

                                                  (Front)

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

                 ÚÄÄÄÄÄÄÄÄÄÄÄ Disable Spin

                 ³   ÚÄÄÄÄÄÄÄ SCSI ID's (none for ID0)

  (TOP)          ³   ³

                 ³ ÚÄÁÄ¿          J3

                 ³ 4 2 1

                 o o o o    o o o o o   o o

             ÍÍ  o o o oÍÍÍ   o o o o   o o ÍÍÍÍÍÍÍÍPWAÍÍÍÍÍÍÍÍÍÍ

                            ³ ÀÄÄÂÄÄÙ   ³ ³

  (BOTTOM)      J4          ³    ³      ³ ÀÄÄ Spindle Synch

                            ³    ³      ÀÄÄÄÄ LED Driver

                            ³    ÀÄÄÄÄÄÄÄÄÄÄÄ Reserved

                            ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ pin removed

Model      Cap      Cyl   Hd   SPT  Spin   BufK  Access IdleW Family

CFA540S     541.9   2805  4    94   4500   256   10.5   3.8   Advantage


Advantage Family SCSI
CFA810S, CFA1080S - Filepro Advantage

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                  50 pin I/O Cable Connection J2

                  ³

               ÕÍÍÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

             ÍÍµ::::::::::::::::::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

             J1ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                ÚÄÄTResÄÄ1    ÚÄÄTResÄÄ1

                ÀÄÄÄÄÄÄÄÄÙ    ÀÄÄÄÄÄÄÄÄÙ

                          oÂo

                           ÀÄÄ Enable Term Power

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

                 ÚÄÄÄÄÄÄÄÄÄÄÄ Disable Spin

                 ³   ÚÄÄÄÄÄÄÄ SCSI ID's (none for ID0)

  (TOP)          ³   ³

                 ³ ÚÄÁÄ¿          J3

                 ³ 4 2 1

                 o o o o    o o o o o   o o

             ÍÍÍ o o o oÍÍÍ   o o o o   o o ÍÍÍÍÍÍÍÍPWAÍÍÍÍÍÍÍÍÍÍ

                            ³ ÀÄÄÂÄÄÙ   ³ ³

  (BOTTOM)      J4          ³    ³      ³ ÀÄÄ Spindle Synch

                            ³    ³      ÀÄÄÄÄ LED Driver

                            ³    ÀÄÄÄÄÄÄÄÄÄÄÄ Reserved

                            ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ pin removed

Model      Cap      Cyl   Hd   SPT  Spin   BufK  Access IdleW Family

CFA810S     810     2794  6    94   4500   256   12.0   4.8   Advantage

CFA1080S   1080     2794  8    94   4500   256   12.0   5.8   Advantage


CFN170S
CFN170S - Trigger

                                      ÚÄ 40-pin I/O Connector (* see below)

                            TOP       ³

                                      ³                            1

                                                             o o o o

                              ÍPÍWÍAÍ :::::::::::.:::::::1 ÍÍø ø ø ø

                                                 ³

       pin-17 removed for keying ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

Pin assignments for the 2.5" drive SCSI interface connector

     (signal)          (pin)          (signal)

                    ÚÄÄÄÄÄÄÄÄÄÄ¿                               pin

     Reserved (NC)  ³ 1      2 ³  Reserved (ND)                ID1 ID2 ID4

     Reserved (NC)  ³ 3      4 ³  Reserved (ND)            ID ÚÄÄÄÄÄÄÄÄÄÄÄ

              ID1-  ³ 5      6 ³  ID2-                      0 ³ H   H   H

              ID4-  ³ 7      8 ³  LED                       1 ³ L   H   H

                    ÀÄÄÄÄÄÄÄÄÄÄÙ                            2 ³ H   L   H

                    ÚÄÄÄÄÄÄÄÄÄÄ¿                            3 ³ L   L   H

               +5v  ³ 1      2 ³  +5v                       4 ³ H   H   L

           +5v Ret  ³ 3      4 ³  +5v Ret                   5 ³ L   H   L

            Ground  ³ 5      6 ³  DB0-                      6 ³ H   L   L

            Ground  ³ 7      8 ³  DB1-                      7 ³ L   L   L

            Ground  ³ 9      10³  DB2-

            Ground  ³ 11     12³  DB3-                      H = high

            Ground  ³ 13     14³  DB4-                      L = low

            Ground  ³ 15     16³  DB5-

     Connector Key  ³ nopin  18³  DB6-

            Ground  ³ 19     20³  DB7-

            Ground  ³ 21     22³  Parity-

            Ground  ³ 23     24³  TRMPWR

              ATN-  ³ 25     26³  BSY-

            Ground  ³ 27     28³  ACK-

              RST-  ³ 29     30³  MSG-

            Ground  ³ 31     32³  SEL-

              I/O-  ³ 33     34³  C/D-

            Ground  ³ 35     36³  REQ-

           +5v Ret  ³ 37     38³  +5v Ret

               +5v  ³ 39     40³  +5v

                    ÀÄÄÄÄÄÄÄÄÄÄÙ

Model      Cap      Cyl   Hd   SPT  Spin   BufK  Access IdleW Family

CFN170S     168.2   1339  4    61   4500    32   12.0   1.0   Trigger


CP2020
CP2020 - Kato

                   ÚÄ 40-pin I/O Connector (* see below)

         TOP       ³

                   ³                            1

                                          o o o o

           ÍPÍWÍAÍ :::::::::::.:::::::1 ÍÍø ø ø ø

                              ³

   pin-17 removed for keyingÄÄÙ            (Back)   o o ÄÄ ID4

                                                    o o ÄÄ ID2

                                           (Front)  o o ÄÄ ID1

(Contains non-removable termination resistors. Must be the last unit if

 daisy-chained with other SCSI devices.)

Pin assignments for the 2.5" drive SCSI interface connector

     (signal)          (pin)          (signal)

                    ÚÄÄÄÄÄÄÄÄÄÄ¿                               pin

     Reserved (NC)  ³ 1      2 ³  Reserved (ND)                ID1 ID2 ID4

     Reserved (NC)  ³ 3      4 ³  Reserved (ND)            ID ÚÄÄÄÄÄÄÄÄÄÄÄ

              ID1-  ³ 5      6 ³  ID2-                      0 ³ H   H   H

              ID4-  ³ 7      8 ³  LED                       1 ³ L   H   H

                    ÀÄÄÄÄÄÄÄÄÄÄÙ                            2 ³ H   L   H

                    ÚÄÄÄÄÄÄÄÄÄÄ¿                            3 ³ L   L   H

               +5v  ³ 1      2 ³  +5v                       4 ³ H   H   L

           +5v Ret  ³ 3      4 ³  +5v Ret                   5 ³ L   H   L

            Ground  ³ 5      6 ³  DB0-                      6 ³ H   L   L

            Ground  ³ 7      8 ³  DB1-                      7 ³ L   L   L

            Ground  ³ 9      10³  DB2-

            Ground  ³ 11     12³  DB3-                      H = high

            Ground  ³ 13     14³  DB4-                      L = low

            Ground  ³ 15     16³  DB5-

     Connector Key  ³ nopin  18³  DB6-

            Ground  ³ 19     20³  DB7-

            Ground  ³ 21     22³  Parity-

            Ground  ³ 23     24³  TRMPWR

              ATN-  ³ 25     26³  BSY-

            Ground  ³ 27     28³  ACK-

              RST-  ³ 29     30³  MSG-

            Ground  ³ 31     32³  SEL-

              I/O-  ³ 33     34³  C/D-

            Ground  ³ 35     36³  REQ-

           +5v Ret  ³ 37     38³  +5v Ret

               +5v  ³ 39     40³  +5v

                    ÀÄÄÄÄÄÄÄÄÄÄÙ

Model      Cap      Cyl   Hd   SPT  Spin   BufK  Access IdleW Family

       CP2020       21.3    653  2    32                23.0         Kato


CP30060
CP30060 - Allegheny

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

              50 pin I/O Cable Connection J2

              ³

           ÕÍÍÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

         ÍÍµ::::::::::::::::::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

         J1ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

         ÚÄÄTResÄÄ1ÚÄÄTResÄÄ1ÚÄÄTResÄÄ1

         ÀÄÄÄÄÄÄÄÄÙÀÄÄÄÄÄÄÄÄÙÀÄÄÄÄÄÄÄÄÙ

                      oÂo

                       ³

           Term Power ÄÙ

            Enable

                                                   (Back)

                                             o o o

                                             o o o

                                             ³ ³ ³

                                         ID1 Ù ³ ³ (Front)

                                         ID2 ÄÄÙ ³

                                         ID4 ÄÄÄÄÙ

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

  (TOP)

               o o o o o   o o

             ÍÍ  o o o o   o o ÍÍÍÍÍÍÍÍPWAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

               ³ ÀÄÄÂÄÄÙ   ³ ³

  (BOTTOM)     ³    ³      ³ ÀÄÄ Reserved

               ³    ³      ÀÄÄÄÄ LED Driver

               ³    ÀÄÄÄÄÄÄÄÄÄÄÄ Reserved

               ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ pin removed

Model      Cap      Cyl   Hd   SPT  Spin   BufK  Access IdleW Family

CP30060      60.8   1524  2    39   3400    64   19.0   2.8   Allegheny


CP30080
CP30080 - Hopi

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

              50 pin I/O Cable Connection J2

              ³

           ÕÍÍÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

         ÍÍµ::::::::::::::::::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

         J1ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

         ÚÄÄTResÄÄ1ÚÄÄTResÄÄ1ÚÄÄTResÄÄ1

         ÀÄÄÄÄÄÄÄÄÙÀÄÄÄÄÄÄÄÄÙÀÄÄÄÄÄÄÄÄÙ

                      oÂo

                       ³

           Term Power ÄÙ

            Enable

                                                   (Back)

                                             o o o

                                             o o o

                                             ³ ³ ³

                                         ID1 Ù ³ ³ (Front)

                                         ID2 ÄÄÙ ³

                                         ID4 ÄÄÄÄÙ

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

  (TOP)

               o o o o o   o o

             ÍÍ  o o o o   o o ÍÍÍÍÍÍÍÍPWAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

               ³ ÀÄÄÂÄÄÙ   ³ ³

  (BOTTOM)     ³    ³      ³ ÀÄÄ Reserved

               ³    ³      ÀÄÄÄÄ LED Driver

               ³    ÀÄÄÄÄÄÄÄÄÄÄÄ Reserved

               ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ pin removed

Model      Cap      Cyl   Hd   SPT  Spin   BufK  Access IdleW Family

CP30080      84.1   1058  4    39   3400    64   19.0   2.8   Hopi


CPJaguar Family SCSI
CP30080E, CP30170E - Jaguar

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

              50 pin I/O Cable Connection J2

              ³

           ÕÍÍÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

         ÍÍµ::::::::::::::::::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

         J1ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

         ÚÄÄTResÄÄ1ÚÄÄTResÄÄ1ÚÄÄTResÄÄ1

         ÀÄÄÄÄÄÄÄÄÙÀÄÄÄÄÄÄÄÄÙÀÄÄÄÄÄÄÄÄÙ

                                                   (Back)

                                         ID4 Ä o o

                                         ID2 Ä o o

                                         ID1 Ä o o

                                                   (Front)

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

  (TOP)

               o o o o o   o o

             ÍÍ  o o o o   o o ÍÍÍÍÍÍÍÍPWAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

               ³ ÀÄÄÂÄÄÙ   ³ ³

  (BOTTOM)     ³    ³      ³ ÀÄÄ Reserved

               ³    ³      ÀÄÄÄÄ LED Driver

               ³    ÀÄÄÄÄÄÄÄÄÄÄÄ Reserved

               ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ pin removed

Model      Cap      Cyl   Hd   SPT  Spin   BufK  Access IdleW Family

CP30080E     85.0   1806  2    46   3833    32   17.0   2.5   Jaguar

CP30170E    170.1   1806  4    46   3833    32   17.0   2.5   Jaguar


CP30100
CP30100 - Hopi

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

              50 pin I/O Cable Connection J2

              ³

           ÕÍÍÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

         ÍÍµ::::::::::::::::::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

         J1ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

         ÚÄÄTResÄÄ1ÚÄÄTResÄÄ1ÚÄÄTResÄÄ1

         ÀÄÄÄÄÄÄÄÄÙÀÄÄÄÄÄÄÄÄÙÀÄÄÄÄÄÄÄÄÙ

                                                   (Back)

                                         ID4 Ä o o

                                         ID2 Ä o o

                                         ID1 Ä o o

                                                   (Front)

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

  (TOP)

               o o o o o   o o

             ÍÍ  o o o o   o o ÍÍÍÍÍÍÍÍPWAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

               ³ ÀÄÄÂÄÄÙ   ³ ³

  (BOTTOM)     ³    ³      ³ ÀÄÄ Reserved

               ³    ³      ÀÄÄÄÄ LED Driver

               ³    ÀÄÄÄÄÄÄÄÄÄÄÄ Reserved

               ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ pin removed

Model      Cap      Cyl   Hd   SPT  Spin   BufK  Access IdleW Family

CP30100     121.5   1524  4    39   3399    64   19.0   2.8   Hopi


CP30200
CP30200 - Cougar

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

              50 pin I/O Cable Connection J2

              ³

           ÕÍÍÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

         ÍÍµ::::::::::::::::::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

         J1ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

         ÚÄÄTResÄÄ1ÚÄÄTResÄÄ1ÚÄÄTResÄÄ1

         ÀÄÄÄÄÄÄÄÄÙÀÄÄÄÄÄÄÄÄÙÀÄÄÄÄÄÄÄÄÙ

                      o¿

                      oÁÄ Enable Term

                           Power

                                                   (Back)

                                Disable Spin - o o

                                         ID4 Ä o o

                                         ID2 Ä o o

                                         ID1 Ä o o

                                                   (Front)

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

  (TOP)

               o o o o o   o o

             ÍÍ  o o o o   o o ÍÍÍÍÍÍÍÍPWAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

               ³ ÀÄÄÂÄÄÙ   ³ ³

  (BOTTOM)     ³    ³      ³ ÀÄÄ Spindle Synch

               ³    ³      ÀÄÄÄÄ LED Driver

               ³    ÀÄÄÄÄÄÄÄÄÄÄÄ Reserved

               ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ pin removed

Model      Cap      Cyl   Hd   SPT  Spin   BufK  Access IdleW Family

CP30200     212.6   2124  4    49   4500   256   12.0   5.2   Cougar


CP3040
CP3020, CP3040 - Sierra

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

              50 pin I/O Cable Connection J2

              ³

           ÕÍÍÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

         ÍÍµ::::::::::::::::::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

         J1ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

         ÚÄÄTResÄÄ1ÚÄÄTResÄÄ1ÚÄÄTResÄÄ1

         ÀÄÄÄÄÄÄÄÄÙÀÄÄÄÄÄÄÄÄÙÀÄÄÄÄÄÄÄÄÙ

                                           (Back)

                                 o o o o

                                 o o o o

                                 ³ ³ ³ ³

                             ID1 Ù ³ ³ ³   (Front)

                             ID2 ÄÄÙ ³ ³

                             ID4 ÄÄÄÄÙ ³

                   Parity Enable ÄÄÄÄÄÄÙ

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

  (TOP)

               o o o o o   o

             ÍÍ  o o o o   o ÍÍÍÍÍÍÍÍPWAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

               ³ ÀÄÄÂÄÄÙ   ³

  (BOTTOM)     ³    ³      ³

               ³    ³      ÀÄÄÄÄ LED Driver

               ³    ÀÄÄÄÄÄÄÄÄÄÄÄ Reserved

               ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ pin removed

Model      Cap      Cyl   Hd   SPT  Spin   BufK  Access IdleW Family

       CP3020       21.4    636  2    33   3574     8   27.0   2.0

CP3040       42.0   1026  2    40   3557     8   25.0   2.3   Sierra


CP30540
CP30540 - Aegean

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                  50 pin I/O Cable Connection J2

                  ³

               ÕÍÍÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

             ÍÍµ::::::::::::::::::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

               ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                          oÂo

                           ÀÄÄ (here or here) ÄÄÄÄÄÄ Enable Term Power

                                           ³          (two configurations

                                          oÁo          were produced)

                                 (Back)   o o   ÄÄÄÄ Enable Terminators

                                          o o   ÄÄÄÄ Disable Spin

                                          o o   ÄÄÄÄ ID 4

                                          o o   ÄÄÄÄ ID 2

                                (Front)   o o   ÄÄÄÄ ID 1

                                                     ID 0 = no ID jumpers

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º

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               ÚÄÄÄÄÄÄÄÄÄÄÄÄÄ Alternate LED Driver

               ³ ÚÄÄÄÄÄÄÄÄÄÄÄ Enable Terminators

               ³ ³   ÚÄÄÄÄÄÄÄ SCSI ID's (none for ID0)

  (TOP)        ³ ³   ³

               ³ ³ ÚÄÁÄ¿          J3

               ³ ³ 4 2 1

               o o o o o    o o o o o   o o

             Í o o o o oÍÍÍ   o o o o   o o ÍÍÍÍÍÍÍÍPWAÍÍÍÍÍÍÍÍÍÍ

                            ³ ÀÄÄÂÄÄÙ   ³ ³

  (BOTTOM)      J6          ³    ³      ³ ÀÄÄ Spindle Synch

                            ³    ³      ÀÄÄÄÄ LED Driver

                            ³    ÀÄÄÄÄÄÄÄÄÄÄÄ Reserved

                            ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ pin removed

Model      Cap      Cyl   Hd   SPT  Spin   BufK  Access IdleW Family

CP30540     545.9   2242  6    79   5400   256   10.0   5.2   Aegean


Fat Family - SCSI
CP3100, CP3150, CP3180 - Fat 100

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              50 pin I/O Cable Connection J2

              ³

           ÕÍÍÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

         ÍÍµ::::::::::::::::::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

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            o o o

            o o o

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            ³ ³ ÀÄ ID4

            ³ ÀÄÄÄ ID2

            ÀÄÄÄÄÄ ID1

  (Front)                  oÂÄ Enable Spindle Synch

                           o´

                           oÁÄ Enable LED

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  (TOP)

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               o o o o o   o

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               ³ ÀÄÄÂÄÄÙ   ³

  (BOTTOM)     ³    ³      ³

               ³    ³      ÀÄÄÄÄ LED Driver / Spindle Synch

               ³    ÀÄÄÄÄÄÄÄÄÄÄÄ Reserved

               ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ pin removed

Model      Cap      Cyl   Hd   SPT  Spin   BufK  Access IdleW Family

CP3100      104.0    776  8    33   3575    16   25.0   4.7   Fat 100

       CP3150       52.4    776  4    33   3575    16   25.0   4.7   Fat

       CP3180       84.3    832  6    33   3575    32   25.0   2.9   Fat 80


CP31370
CP31370 - Baja

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                  50 pin I/O Cable Connection J2

                  ³

               ÕÍÍÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

             ÍÍµ::::::::::::::::::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

               ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                          oÂo

                           ³

        Enable Term Power ÄÙ

                                 (Back)   o o   ÄÄÄÄ Enable Terminators

                                          o o   ÄÄÄÄ Disable Spin

                                          o o   ÄÄÄÄ ID 4

                                          o o   ÄÄÄÄ ID 2

                                (Front)   o o   ÄÄÄÄ ID 1

                                                     ID 0 = no ID jumpers

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º

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               ÚÄÄÄÄÄÄÄÄÄÄÄÄÄ Alternate LED Driver

               ³ ÚÄÄÄÄÄÄÄÄÄÄÄ Enable Terminators

               ³ ³   ÚÄÄÄÄÄÄÄ SCSI ID's (none for ID0)

  (TOP)        ³ ³   ³

               ³ ³ ÚÄÁÄ¿          J3

               ³ ³ 4 2 1

               o o o o o    o o o o o   o o

             Í o o o o oÍÍÍ   o o o o   o o ÍÍÍÍÍÍÍÍPWAÍÍÍÍÍÍÍÍÍÍ

                            ³ ÀÄÄÂÄÄÙ   ³ ³

  (BOTTOM)      J6          ³    ³      ³ ÀÄÄ Spindle Synch

                            ³    ³      ÀÄÄÄÄ LED Driver

                            ³    ÀÄÄÄÄÄÄÄÄÄÄÄ Reserved

                            ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ pin removed

Model      Cap      Cyl   Hd   SPT  Spin   BufK  Access IdleW Family

CP31370    1371.8   2386 14    80   5400   256   10.0   8.0   Baja


CP3200F
CP3200F - Rambo

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              50 pin I/O Cable Connection J2

              ³

           ÕÍÍÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

         ÍÍµ::::::::::::::::::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

           ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

         ÚÄÄTResÄÄ1ÚÄÄTResÄÄ1ÚÄÄTResÄÄ1

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            o o o

            o o o

            ³ ³ ³

            ³ ³ ÀÄ ID1

            ³ ÀÄÄÄ ID2

            ÀÄÄÄÄÄ ID4

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                                  Reserved Ä¿

                                            ³

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    (TOP)                               o o o o o   o

Option Block   ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ o o o o o   o Í

   (BOTTOM)                                         ³

                                            LED ÄÄÄÄÙ

Model      Cap      Cyl   Hd   SPT  Spin   BufK  Access IdleW Family

       CP3200      209.8   1348  8    38                19.0

CP3200F     212     1366  8    37   3485    64   16.0   4.2   Rambo


Summit Family SCSI
CP3360, CP3540 - Summit

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              50 pin I/O Cable Connection J2

              ³

           ÕÍÍÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

         ÍÍµ::::::::::::::::::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

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         ÚÄÄTResÄÄ1   ÚÄÄTResÄÄ1ÚÄÄTResÄÄ1

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        Term Power ÄÙ

         Enable

                                                   (Back)

                               Disable Spin ÄÄ o o

                                        ID4 ÄÄ o o

                                        ID2 ÄÄ o o

                                        ID1 ÄÄ o o

                                                   (Front)

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  (TOP)

               o o o o o   o o

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               ³ ÀÄÄÂÄÄÙ   ³ ³

  (BOTTOM)     ³    ³      ³ ÀÄÄ Spindle Synch

               ³    ³      ÀÄÄÄÄ LED Driver

               ³    ÀÄÄÄÄÄÄÄÄÄÄÄ Reserved

               ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ pin removed

Model      Cap      Cyl   Hd   SPT  Spin   BufK  Access IdleW Family

CP3360      362.5   1807  8    49   4500   256   12.0   6.7   Summit

CP3540      543.7   1807 12    49   4500   256   12.0   6.7   Summit


CP340
CP340 - Fat 40

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              50 pin I/O Cable Connection J2

              ³

           ÕÍÍÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

         ÍÍµ::::::::::::::::::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

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         ÚÄÄTResÄÄ1ÚÄÄTResÄÄ1ÚÄÄTResÄÄ1

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          o o o o

          o o o o

          ³ ³ ³ ³

          ³ ³ ³ ÀÄ ID4

          ³ ³ ÀÄÄÄ ID2

          ³ ÀÄÄÄÄÄ ID1

          ÀÄÄÄÄÄÄÄ Parity Disable

  (Front)

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  (TOP)

         J4

               o o o o o   o

             ÍÍ  o o o o   o ÍÍÍÍÍÍÍÍPWAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

               ³ ÀÄÄÂÄÄÙ   ³

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               ³    ³      ÀÄÄÄÄ LED Driver

               ³    ÀÄÄÄÄÄÄÄÄÄÄÄ Reserved

               ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ pin removed

Model      Cap      Cyl   Hd   SPT  Spin   BufK  Access IdleW Family

CP340        42.8    788  4    26   3600     8   29.0   2.5   Fat 40


Old CDC / Imprimis Wren Drives
 	Old CDC / Imprimis Specifications and Jumper Settings:

Older CDC / Imprimis Wren products NOT converted to new Seagate model numbers.

Select a Wren Family:

9415-5 or BJ7Dx-A Wren 1

94151   Wren 2 SCSI (SASI subset)

94155   Wren 2 ST412 MFM

94155   Wren 2 ST412 RLL

94156   Wren 2 ESDI

94161   Wren 3 SCSI

94166   Wren 3 ESDI

94171   Wren 4 SCSI

94186   Wren 5 ESDI

94204   Wren 2 ATA

94205   Wren 2 ST412 MFM

94211   Wren 3 SCSI

94221   Wren 5 SCSI

94244   Wren 6 ATA

94246   Wren 6 ESDI


9415-5 MFM (Wren 1)
9415-5 xx (Wren 1) ST506 MFM

                  Inter-                 Total     Formatted

   Model   Family face   Cyl   Hd  SPT   Sectors    Capacity     WPC

----------|------|------|-----|---|-----|---------|-------------|----

9415-5 21  Wren1  ST412   697   3   17     35,547   18,200,064     0

9415-5 25  Wren1  ST412   697   4   17     47,396   24,266,752     0

9415-5 28  Wren1  ST412   697   4   17     47,396   24,266,752     0

9415-5 36  Wren1  ST412   697   5   17     59,245   30,333,440     0

9415-5 38  Wren1  ST412   733   5   17     62,305   31,900,160     0

      Drive Sel  ÚÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

      o o o o o  ³   Term     1³

      o o o o o  ³ 14 pin dip  ³                      ÚÄÄÄÄÄÄÄÄÄ¿

                 ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÙ                      ³ O O O O ³ Power

      1 2 3 4 Radial                                  \ÄÄÄÄÄÄÄÄÄ/

                           Command ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿1  12 G G 5

     ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

         Data   ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿1  ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

     ÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍ ÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ


94151 SASI (Wren 2)
94151-xx (Wren 2) SCSI (SASI subset)

                  Inter-                 Total     Formatted

   Model   Family face   Cyl   Hd  SPT   Sectors    Capacity     WPC

----------|------|------|-----|---|-----|---------|-------------|----

94151-25   Wren2  SASI    921   3   36              n/a(256 byte/sct)

94151-27   Wren2  SASI    921   3   19              n/a(512 byte/sct)

94151-42   Wren2  SASI    921   5   36              n/a(256 byte/sct)

94151-44   Wren2  SASI    921   5   19              n/a(512 byte/sct)

94151-59   Wren2  SASI    921   7   36              n/a(256 byte/sct)

94151-62   Wren2  SASI    921   7   19              n/a(512 byte/sct)

94151-76   Wren2  SASI    921   9   36              n/a(256 byte/sct)

94151-80   Wren2  SASI    921   9   19              n/a(512 byte/sct)

          ÚÄÄ Drive Select ID

          ³

   ÚÄÄÄÄÄÄÁÄÄÄÄÄÄ¿                                Ú12ÄGÄGÄ5Ä¿ Ú3 ea.ÄÄÄ¿

 o o o o o o o o o   ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸  ³ 0 0 0 0 ³ ³Terminator

 o o o o o o o o o   ³:::SCSI:Cable:::::::::::1³  \ÄÄÄÄÄÄÄÄÄ/ ÀÄÄÄÄÄÄÄÄÙ

ÍSÍ0Í1Í2Í3Í4Í5Í6Í7ÍÍÍÏÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

ÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

 ³                                            Heads = 3   5   7   9

 ÀÄÄ Sector Block Size    ON = 512 bytes/block  94151-27, 44, 62, 80

                         OFF = 256 bytes/block  94151-25, 42, 59, 76


94155 MFM (Wren 2)
94155-xxx (Wren 2) ST412 MFM

                  Inter-                 Total     Formatted

   Model   Family face   Cyl   Hd  SPT   Sectors    Capacity     WPC

----------|------|------|-----|---|-----|---------|-------------|----

94155-36   Wren2  ST412   697   5   17     59,245   30,333,440    128

94155-48   Wren2  ST412   925   5   17     78,625   40,256,000     ?

94155-57   Wren2  ST412   925   6   17     94,350   48,307,200     ?

94155-67   Wren2  ST412   925   7   17    110,075   56,358,400     ?

94155-77   Wren2  ST412   925   8   17    125,800   64,409,600     ?

   Drive Sel  ÚÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

   o o o o o  ³   Term     1³

   o o o o o  ³ 14 pin dip  ³                      ÚÄÄÄÄÄÄÄÄÄ¿

              ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÙ                      ³ O O O O ³ Power

   1 2 3 4 Radial                                  \ÄÄÄÄÄÄÄÄÄ/

                        Command ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿1  12 G G 5

  ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

      Data   ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿1  ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

  ÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍ ÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

             ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ


94155 RLL (Wren 2)
94155-xxx (Wren 2) ST412 RLL

                  Inter-                 Total     Formatted

   Model   Family face   Cyl   Hd  SPT   Sectors    Capacity     WPC

----------|------|------|-----|---|-----|---------|-------------|----

94155-120  Wren2  ST412   960   8   26    199,680  102,236,160

   Drive Sel  ÚÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

   o o o o o  ³   Term     1³

   o o o o o  ³ 14 pin dip  ³                      ÚÄÄÄÄÄÄÄÄÄ¿

              ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÙ                      ³ O O O O ³ Power

   1 2 3 4 Radial                                  \ÄÄÄÄÄÄÄÄÄ/

                        Command ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿1  12 G G 5

  ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

      Data   ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿1  ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

  ÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍ ÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

             ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ


94156 ESDI (Wren 2)
94156-xx (Wren 2) ESDI (MFM Recording Mode)

                  Inter-                 Total     Formatted

   Model   Family face   Cyl   Hd  SPT   Sectors    Capacity     WPC

----------|------|------|-----|---|-----|---------|-------------|----

94156-48   Wren2  ESDI    925   5   17     78,625   40,256,000

94156-67   Wren2  ESDI    925   7   17    110,075   56,358,400

94156-86   Wren2  ESDI    925   9   17    141,525   72,460,800

Drive Selects Ä¿

 (binary)   ÄÄÄÁÄ    ÚÄÄÄÄÄÄÄÄÄÄÄÄÄ¿                    12 G G 5

            4 2 1    ³   Term     1³                   ÚÄÄÄÄÄÄÄÄÄ¿

            o o o    ³ 14 pin dip  ³ ÚCommand Cable    ³ 0 0 0 0 ³ Power

            o o o    ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÙÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿1 \ÄÄÄÄÄÄÄÄÄ/

   ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                      ÚÄÄÄÄÄÄÄÄÄÄ¿1 ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

   ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍ ÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                      ÀÄÄÄÄÄÄÄÄÄÄÙ

                      ÀData Cable

                       ÚÄÄÄÄÄÄÄÄÄÄÄÄÄ Factory Test (off is normal)

                       ³ ÚÄÄÄÄÄÄÄÄÄÄÄ Motor Start option enable

                       ³ ³         ÚÄ Serial Mode (always on)

                       ³ ³  SW1    ³

             Sectors ³ 1 2 3 4 5 6 7

           ÍÍÍÍÍÍÍÍÍÍØÍTÍMÍÍÍÍÍÍÍÍÍSÍÍ

         (512) 17    ³     1 1

               16    ³     0 1             (located at front of drive

               34    ³     1 0              behind the front plate)

               32    ³     0 0

        Address Mark ³         1 1     1=on; 0=off

          Byte Clock ³         0 1

        Sector Pulse ³         0 0

        Sector Pulse ³         1 0


94161 SCSI (Wren 3)
94161-xxx (Wren 3) SCSI

                  Inter-                 Total     Formatted

   Model   Family face   Cyl   Hd  SPT   Sectors    Capacity     WPC

----------|------|------|-----|---|-----|---------|-------------|----

94161- 86  Wren3  SCSI    969   5   35    169,575   86,822,400

94161-101  Wren3  SCSI    969   5   34    164,730   84,341,760

94161-103  Wren3  SCSI    969   6   35    203,490  104,186,880

94161-121  Wren3  SCSI    969   7   35    237,405  121,551,360

94161-138  Wren3  SCSI    969   8   35    271,320  138,915,840

94161-141  Wren3  SCSI    969   7   34    230,622  118,078,464

94161-155  Wren3  SCSI    969   9   34    296,514  151,815,168

              (3 by 5 configuration jumper block)

      ÚÄÄÄÄÄ Motor Start Option enable (horizontal)

      ³   ÚÄ N/A

      ³   ³     ÚÄ Terminator Power from Bus

     oÁo xÁx  oÄ³  (upper 2 pins)               Ú12ÄGÄGÄ5Ä¿ ÚÄÄÄÄÄÄÄÄ¿

     o o o o ÚoÂÙ  ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸  ³ 0 0 0 0 ³ ³Terminator

     o o o o ³o³   ³:::SCSI:Cable:::::::::::1³  \ÄÄÄÄÄÄÄÄÄ/ ÀÄÄÄÄÄÄÄÄÙ

ÍÍÍÍÍ4Í2Í1ÍPÍÏTÏÍÍÍÏÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

ÍÍÍÍÍØÍØÍØÍØÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

     ÀÄÅÄÙ ³  ³

       ³   ³  À Terminator Power (+5v) from drive (lower 2 pins)

       ³   ÀÄÄÄ Parity Check Option Enable (vertical)

       ÀÄÄÄÄÄÄÄ Drive Select ID's (vertical)

              (2 by 7 configuration jumper block)

Terminator Power from Bus (horizontal)

            ³                                Ú12ÄGÄGÄ5Ä¿ ÚÄÄÄÄÄÄÄÄ¿

 o o o o o oÁo  ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸  ³ 0 0 0 0 ³ ³Terminator

 o o o o o x o  ³:::SCSI:Cable:::::::::::1³  \ÄÄÄÄÄÄÄÄÄ/ ÀÄÄÄÄÄÄÄÄÙ

ÍMÍ4Í2Í1ÍPÍTÍTÍÍÏÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

ÍØÍØÍØÍØÍØÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

 ³ ÀÄÅÄÙ ³   ³

 ³   ³   ³   ÀÄ Terminator Power (+5v) from drive (lower 2 pins)

 ³   ³   ÀÄÄÄÄÄ Parity Check Option Enable (vertical)

 ³   ÀÄÄÄÄÄÄÄÄÄ Drive Select ID's (vertical)

 ÀÄÄÄÄÄÄÄÄÄÄÄÄÄ Motor Start Option enable


94166 ESDI (Wren 3)
94166-xxx (Wren 3) ESDI

                  Inter-                 Total     Formatted

   Model   Family face   Cyl   Hd  SPT   Sectors    Capacity     WPC

----------|------|------|-----|---|-----|---------|-------------|----

94166-101  Wren3  ESDI    969   5   36    174,420   89,303,040

94166-121  Wren3  ESDI    969   6   36    209,304  107,163,648

94166-141  Wren3  ESDI    969   7   36    244,188  125,024,256

94166-161  Wren3  ESDI    969   8   36    279,072  142,884,864

   ÚDrive Selects   ÚÄÄÄÄÄÄÄÄÄÄÄÄÄ¿                    12 G G 5

   1 2 3 4 5 6 7    ³   Term     1³                   ÚÄÄÄÄÄÄÄÄÄ¿

   o o o o o o o    ³ 14 pin dip  ³ ÚCommand Cable    ³ 0 0 0 0 ³ Power

   o o o o o o o    ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÙÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿1 \ÄÄÄÄÄÄÄÄÄ/

  ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                     ÚÄÄÄÄÄÄÄÄÄÄ¿1 ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

  ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍ ÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                     ÀÄÄÄÄÄÄÄÄÄÄÙ

                      ÀData Cable

                       ÚÄ Motor Start option enable

                       ³

                       |  SW1   (located at front of drive behind the

    B/Sec ³  Sectors ³ 1 2 3 4   front plate)

    ÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍØÍMÍÍÍÍÍÍ

    512   ³    34    ³   1 1 0   1=on; 0=off

    512   ³    35    ³   1 0 0

    512   ³    36    ³   0 1 0

    256   ³    64    ³   0 0 0

          ³ Add Mark ³   1 1 1


94171 SCSI (Wren 4)
94171-xxx (Wren 4) SCSI

                  Inter-                 Total     Formatted

   Model   Family face   Cyl   Hd  SPT   Sectors    Capacity     WPC

----------|------|------|-----|---|-----|---------|-------------|----

94171-300  Wren4  SCSI   1412   9  ZBR    586,763  300,422,656

94171-307  Wren4  SCSI   1412   9  ZBR    586,763  300,422,656

94171-327  Wren4  SCSI   1412   9  ZBR    586,763  300,422,656

94171-344  Wren4  SCSI   1549   9  ZBR    631,016  323,080,192

Connects CHASIS ground to ground lug ÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

Connects SIGNAL ground to ground lug ÄÄÄÄÄÄÄÄÄÄÄÄ¿ ³

                   Drive Select ID's ÄÄÄÄÄÄÄ¿    ³ ³

           Motor Start Option enable ÄÄÄ¿   ³    G G

          Parity Check Option enable Ä¿ ³ ÚÄÅÄ¿ Ú1Â2¿

                                      P M 4 2 1 ³o³o³   Ú12ÄGÄGÄ5Ä¿

                                      o o o o o ³o³o³   ³ 0 0 0 0 ³ Power

                                      o o o o o ÀÄÁÄÙ   \ÄÄÄÄÄÄÄÄÄ/

   ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍServoÍPWAÍ

   ÍÑÍÍÍÍÍÍÍÑÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÑÍÍDataÍPWAÍÍ

    1ÄÄÄÄÄÄÄÙ    ³:::SCSI Cable::::::::::::1 ³ ÚÄ¿    1ÄÄÄÄÄÄÄÄÙ

Terminator DIP   ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ³o³ o    Terminator DIP

                                               ³oÅÄo

                                               ÀÂÙ

Terminator power (+5v) from drive (vertical) ÄÄÄÙ

Terminator power from the Bus (lower horizontal)


94186 ESDI (Wren 5)
94186-xxx (Wren 5) FH ESDI

                  Inter-                 Total     Formatted

   Model   Family face   Cyl   Hd  SPT   Sectors    Capacity     WPC

----------|------|------|-----|---|-----|---------|-------------|----

94186-265  Wren5  ESDI   1412   9   36    457,488  234,233,856

94186-324  Wren5  ESDI   1412  11   36    559,152  286,285,824

       ÚData Cable              ÚController Cable     /Ä5ÄGÄGÄ12\

      ÍÍÍÍÍÍÍÍ ÍÍÍ             ÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍÍÍ    Í³ 0 0 0 0 ÆÍÍ

                o o o o o 1ÄÄÄÄÄÄÄÄÄÄÄ¿ o o o o o o o ÀÄÄÄÄÄÄÄÄÄÙ

                o o o o o ÀTerminatorÄÙ o o o o o o o

                1 2 3 4 5               7 6 5 4 3 2 1

  Motor Start ÄÄÙ ³ ³ ³ ³                        ÀDrive Selects

option enable     ³ ³ ³ ÀÄ Factory use   Note:  There are 2 types of PWA's.

                  ³ ³ ³    only          One with drive select header on the

       Sectors    ³ ³ ³                  left, and one with header on the

       ÍÍÍÍÍÍÍÍÍÍÍØÍØÍØÍÍ                right (like this). Pin positions

          64      0 0 0                  are the same.

          35      0 0 1

          10      0 1 0    0=open; 1=closed

          19      0 1 1

          36      1 0 0

          34      1 0 1

          87      1 1 0

    Add Mark      1 1 1


94204 ATA (Wren 2)
94204-xx (Wren 2) HH AT

                  Inter-                 Total     Formatted

   Model   Family face   Cyl   Hd  SPT   Sectors    Capacity     WPC

----------|------|------|-----|---|-----|---------|-------------|----

94204-65   Wren2  AT      949   5

                          ÚÄÄ Master on /Slave off

                          ³

                          ³   Factory    Ú12ÄGÄGÄ5Ä¿ Power

     AT Cable Connector   ³   1  J2      ³ 0 0 0 0 ³

   1::::::::ù::::::::::   ::  :::::::::  \Ä1Ä2Ä3Ä4Ä/

  ÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

            pin-20 key     ³

                           ³  ³ For "non-C" model, jumper, if present,

                           ³  ³ must remain on. Drive will not operate

                           ÀÄÄ´ properly if jumper is removed (or added

                              ³ if not originally there).

                              ³

                              ³ For "C" model, jumper on indicates No

                              ³ Slave Present; jumper off means Slave

                              ³ Drive Is Present.

                              ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ


94205 MFM (Wren 2)
94205-xx (Wren 2) HH ST412 MFM

                  Inter-                 Total     Formatted

   Model   Family face   Cyl   Hd  SPT   Sectors    Capacity     WPC

----------|------|------|-----|---|-----|---------|-------------|----

94205-30   Wren2  ST412   989   3   17     50,439   25,824,768

94205-41   Wren2  ST412   989   4   17     67,252   34,433,024

94205-53   Wren2  ST412  1024   5   17     87,040   44,564,480

  Drive Select                                     ÚÄÄÄÄÄÄÄÄÄ¿

  o o o o o o o           1 Terminator             ³ O O O O ³ Power

  o o o o o o o          ÚÄÄÄÄÄÄÄÄÄÄÄÄ¿            \ÄÄÄÄÄÄÄÄÄ/

  1 2 3 4 R r reserved   ÀÄÄÄÄÄÄÄÄÄÄÄÄÙ    1        12 G G 5

  ÍÍÍÍÍÍÍÍÍÍ ÍÍ    ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍÍÍ   ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

    ³     ³                ÀÄController Cable

    ³     ÀÄÄRadial

    ÀÄÄÄÄÄÄÄÄIf twisted cable, use Drive Select 2


94211 SCSI (Wren 3)
94211-xxx (Wren 3) SCSI

                  Inter-                 Total     Formatted

   Model   Family face   Cyl   Hd  SPT   Sectors    Capacity     WPC

----------|------|------|-----|---|-----|---------|-------------|----

94211-91   Wren3  SCSI    992   5

                                           4 2 1 P   Ú12ÄGÄGÄ5Ä¿

  ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿  A B C D E F G H  o o o o   ³ 0 0 0 0 ³ Power

  ³:SCSI:Cable::::pin 1³  o o o o o o o o  o o o o   \Ä1Ä2Ä3Ä4Ä/

 ÍÏÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                             ³   ³

      A-B Not used                           ³   ÀÄ Parity check

      B-C Terminator power from Bus          ÀÄÄÄÄÄ Drive Select ID

      C-D Terminator power from Drive

      D-E Not used

      E-F Not used

      F-G Continuous test seeks

      G-H Motor Start option enable


94221 SCSI (Wren 5)
94221-xxx( Wren 5) HH SCSI

                  Inter-                 Total     Formatted

   Model   Family face   Cyl   Hd  SPT   Sectors    Capacity     WPC

----------|------|------|-----|---|-----|---------|-------------|----

94221-169  Wren5  SCSI   1310   5  ZBR    310,539  158,995,968

94221-184  Wren5  SCSI

                                                        Power

    SCSI Cable                             4 2 1 P   Ú12ÄGÄGÄ5Ä¿

  ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸  A B C D E F G H  o o o o   ³ 0 0 0 0 ³

  ³:::::::::::::::::::1³  o o o o o o o o  o o o o   \ÄÄÄÄÄÄÄÄÄ/

 ÍÏÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                             ³   ³

      A-B Not used                           ³   ÀÄ Parity check

      B-C Terminator power from Bus          ³

      C-D Terminator power from Drive        ÀÄÄÄÄÄ Drive Select ID

      D-E Not used                                  (ID 0 for single

      E-F Not used                                   drive system)

      F-G Continuous test seeks

      G-H Motor Start option enable


94244 ATA (Wren 6)
94244-xxx (Wren 6) HH AT (IDE)

                  Inter-                 Total     Formatted

   Model   Family face   Cyl   Hd  SPT   Sectors    Capacity     WPC

----------|------|------|-----|---|-----|---------|-------------|----

94244-164  Wren6  AT     1747   3   54    283,014  144,903,168

94244-219  Wren6  AT     1747   4   54    377,352  193,204,224

94244-502  Wren6  AT

      ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿                          /ÄÄÄÄÄÄÄ\

   ÍÍÍµ1  AT (IDE) Cable   ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµO O O OÆÍÍ

      ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ          o o o o o o o   ÀÄÄÄÄÄÄÄÙ

                                      o o o o o o o    5 G G 12

                                      G F E D C B A

 A  B

 0  0  Factory use only

 0  1  Drive is Slave, motor start delay 20 sec from master start-up

 1  0  Drive is Slave, no motor start delay

 1  1  Drive is Master, motor starts at application of DC power

 C  D

 0  0  Physical mode

 0  1  Translate (logical) mode, sparing scheme is one sector

 1  0  Translate (logical) mode, no sparing space allocated

 1  1  Factory use only

 E

 0     Slave present, only meaningful on master

 1     No Slave present

 F  G

 x  x  Factory test, position G may or may not be present by PWA


94246 ESDI (Wren 6)
94246-xxx (Wren 6) HH ESDI

    Ú Data Cable    Ú Controller Cable               /4Ä3Ä2Ä1\

   ÍÍÍÍÍÍÍÍ ÍÍ    ÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍÍ    ÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ0 0 0 0ÆÍÍÍ

               1ÄÄÄÄÄÄÄÄÄÄÄ¿  o o o o o       o o o  ÀÄÄÄÄÄÄÄÙ

               ÀÄÄÄÄÄÄÄÄÄÄÄÙ  o o o o o       o o o   5 G G 12

                Terminator    5 4 3 2 1       4 2 1

                              ³ ³ ³ ³ ³        ÀDrive Selects

   Motor Start option enable ÄÙ ³ ³ ³ ÀÄ Factory use only

                                ³ ³ ³

          B/Sec ³ Sectors       ³ ³ ³

          ÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍØÍÍÏÍÏÍÏÍ

          256   ³  96        ³  0 0 0

          512   ³  54        ³  1 0 0  1=on, 0=off

          1024  ³  15        ³  0 1 0

                ³  Special   ³  1 1 0

          512   ³  53        ³  0 0 1

          512   ³  51        ³  1 0 1

          1024  ³  28        ³  0 1 1

                ³  Add/Mark  ³  1 1 1


ST-71P

                             ST-71P

                      Solid State FlashCard

       FORMATTED CAPACITY _______________________1.8

       TRANSFER RATE To/From Memory (Mbytes/sec) up to 2.5

       TRANSFER RATE To/From Interface __________up to 6

       CONTROLLER OVERHEAD (msec-Command to DRQ) <1.5

       STARTUP TIMES:

        Sleep to Write (msec) ___________________<3

        Sleep to Read  (msec) ___________________<2

       INTERFACE ________________________________PCMCIA/ATA

        Auto Sense of interface type

        PCMCIA Card Type II

       MTBF (power-on hours) Office _____________250,000

       SHOCK (G's):

                operating (Read/Write) __________1000

                nonoperating ____________________1000

       POWER REQUIREMENTS: Maximum Current (mA)

Reading 5v/12v __________________100/NA

                Writing 5v/12v __________________100/30

                Erasing 5v/12v __________________100/20

       IBM AT DRIVE TYPE ________________________

       Physical:

                        Height (inches/mm):     0.196/5

                        Width  (inches/mm):     2.126/54.0

                        Depth  (inches/mm):     3.37/85.6

                        Weight      (oz/g):     1.34/38

Seagate reserves the right to change, without notice, product

offerings or specifications. (11/08/93)


ST-71P5

                             ST-71P5

                      Solid State FlashCard

       FORMATTED CAPACITY _______________________1.8

       TRANSFER RATE To/From Memory (Mbytes/sec) up to 3

       TRANSFER RATE To/From Interface __________up to 6

       CONTROLLER OVERHEAD (msec-Command to DRQ) <1.25

       STARTUP TIMES:

        Sleep to Write (msec) ___________________<2.5

        Sleep to Read  (msec) ___________________<2

       INTERFACE ________________________________PCMCIA/ATA

        Auto Sense of interface type

        PCMCIA Card Type II

       MTBF (power-on hours) Office _____________500,000

       SHOCK (G's):

                operating (Read/Write) __________1000

                nonoperating ____________________1000

       POWER REQUIREMENTS: Maximum Current (mA)

Reading 5v/12v __________________.../NA

                Writing 5v/12v __________________.../NA

                Erasing 5v/12v __________________.../NA

       IBM AT DRIVE TYPE ________________________

       Physical:

                        Height (inches/mm):     0.196/5

                        Width  (inches/mm):     2.126/54.0

                        Depth  (inches/mm):     3.37/85.6

                        Weight      (oz/g):     1.34/38

Seagate reserves the right to change, without notice, product

offerings or specifications. (11/08/93)


ST-72P

                             ST-72P

                      Solid State FlashCard

       FORMATTED CAPACITY _______________________2.6

       TRANSFER RATE To/From Memory (Mbytes/sec) up to 2.5

       TRANSFER RATE To/From Interface __________up to 6

       CONTROLLER OVERHEAD (msec-Command to DRQ) <1.5

       STARTUP TIMES:

        Sleep to Write (msec) ___________________<3

        Sleep to Read  (msec) ___________________<2

       INTERFACE ________________________________PCMCIA/ATA

        Auto Sense of interface type

        PCMCIA Card Type II

       MTBF (power-on hours) Office _____________250,000

       SHOCK (G's):

                operating (Read/Write) __________1000

                nonoperating ____________________1000

       POWER REQUIREMENTS: Maximum Current (mA)

Reading 5v/12v __________________100/NA

                Writing 5v/12v __________________100/30

                Erasing 5v/12v __________________100/20

       IBM AT DRIVE TYPE ________________________

       Physical:

                        Height (inches/mm):     0.196/5

                        Width  (inches/mm):     2.126/54.0

                        Depth  (inches/mm):     3.37/85.6

                        Weight      (oz/g):     1.34/38

Seagate reserves the right to change, without notice, product

offerings or specifications. (11/08/93)


ST-72P5

                             ST-72P5

                      Solid State FlashCard

       FORMATTED CAPACITY _______________________2.6

       TRANSFER RATE To/From Memory (Mbytes/sec) up to 3

       TRANSFER RATE To/From Interface __________up to 6

       CONTROLLER OVERHEAD (msec-Command to DRQ) <1.25

       STARTUP TIMES:

        Sleep to Write (msec) ___________________<2.5

        Sleep to Read  (msec) ___________________<2

       INTERFACE ________________________________PCMCIA/ATA

        Auto Sense of interface type

        PCMCIA Card Type II

       MTBF (power-on hours) Office _____________500,000

       SHOCK (G's):

                operating (Read/Write) __________1000

                nonoperating ____________________1000

       POWER REQUIREMENTS: Maximum Current (mA)

Reading 5v/12v __________________.../NA

                Writing 5v/12v __________________.../NA

                Erasing 5v/12v __________________.../NA

       IBM AT DRIVE TYPE ________________________

       Physical:

                        Height (inches/mm):     0.196/5

                        Width  (inches/mm):     2.126/54.0

                        Depth  (inches/mm):     3.37/85.6

                        Weight      (oz/g):     1.34/38

Seagate reserves the right to change, without notice, product

offerings or specifications. (11/08/93)


ST-75P

                             ST-75P

                      Solid State FlashCard

       FORMATTED CAPACITY _______________________5.2

       TRANSFER RATE To/From Memory (Mbytes/sec) up to 2.5

       TRANSFER RATE To/From Interface __________up to 6

       CONTROLLER OVERHEAD (msec-Command to DRQ) <1.5

       STARTUP TIMES:

        Sleep to Write (msec) ___________________<3

        Sleep to Read  (msec) ___________________<2

       INTERFACE ________________________________PCMCIA/ATA

        Auto Sense of interface type

        PCMCIA Card Type II

       MTBF (power-on hours) Office _____________250,000

       SHOCK (G's):

                operating (Read/Write) __________1000

                nonoperating ____________________1000

       POWER REQUIREMENTS: Maximum Current (mA)

Reading 5v/12v __________________100/NA

                Writing 5v/12v __________________100/30

                Erasing 5v/12v __________________100/20

       IBM AT DRIVE TYPE ________________________

       Physical:

                        Height (inches/mm):     0.196/5

                        Width  (inches/mm):     2.126/54.0

                        Depth  (inches/mm):     3.37/85.6

                        Weight      (oz/g):     1.34/38

Seagate reserves the right to change, without notice, product

offerings or specifications. (11/08/93)


ST-75P5

                             ST-75P5

                      Solid State FlashCard

       FORMATTED CAPACITY _______________________5.2

       TRANSFER RATE To/From Memory (Mbytes/sec) up to 3

       TRANSFER RATE To/From Interface __________up to 6

       CONTROLLER OVERHEAD (msec-Command to DRQ) <1.25

       STARTUP TIMES:

        Sleep to Write (msec) ___________________<2.5

        Sleep to Read  (msec) ___________________<2

       INTERFACE ________________________________PCMCIA/ATA

        Auto Sense of interface type

        PCMCIA Card Type II

       MTBF (power-on hours) Office _____________500,000

       SHOCK (G's):

                operating (Read/Write) __________1000

                nonoperating ____________________1000

       POWER REQUIREMENTS: Maximum Current (mA)

Reading 5v/12v __________________.../NA

                Writing 5v/12v __________________.../NA

                Erasing 5v/12v __________________.../NA

       IBM AT DRIVE TYPE ________________________

       Physical:

                        Height (inches/mm):     0.196/5

                        Width  (inches/mm):     2.126/54.0

                        Depth  (inches/mm):     3.37/85.6

                        Weight      (oz/g):     1.34/38

Seagate reserves the right to change, without notice, product

offerings or specifications. (11/08/93)


ST-710P

                             ST-710P

                      Solid State FlashCard

       FORMATTED CAPACITY _______________________10.4

       TRANSFER RATE To/From Memory (Mbytes/sec) up to 2.5

       TRANSFER RATE To/From Interface __________up to 6

       CONTROLLER OVERHEAD (msec-Command to DRQ) <1.5

       STARTUP TIMES:

        Sleep to Write (msec) ___________________<3

        Sleep to Read  (msec) ___________________<2

       INTERFACE ________________________________PCMCIA/ATA

        Auto Sense of interface type

        PCMCIA Card Type II

       MTBF (power-on hours) Office _____________250,000

       SHOCK (G's):

                operating (Read/Write) __________1000

                nonoperating ____________________1000

       POWER REQUIREMENTS: Maximum Current (mA)

Reading 5v/12v __________________100/NA

                Writing 5v/12v __________________100/30

                Erasing 5v/12v __________________100/20

       IBM AT DRIVE TYPE ________________________

       Physical:

                        Height (inches/mm):     0.196/5

                        Width  (inches/mm):     2.126/54.0

                        Depth  (inches/mm):     3.37/85.6

                        Weight      (oz/g):     1.34/38

Seagate reserves the right to change, without notice, product

offerings or specifications. (11/08/93)


ST-710P5

                             ST-710P5

                      Solid State FlashCard

       FORMATTED CAPACITY _______________________10.4

       TRANSFER RATE To/From Memory (Mbytes/sec) up to 3

       TRANSFER RATE To/From Interface __________up to 6

       CONTROLLER OVERHEAD (msec-Command to DRQ) <1.25

       STARTUP TIMES:

        Sleep to Write (msec) ___________________<2.5

        Sleep to Read  (msec) ___________________<2

       INTERFACE ________________________________PCMCIA/ATA

        Auto Sense of interface type

        PCMCIA Card Type II

       MTBF (power-on hours) Office _____________500,000

       SHOCK (G's):

                operating (Read/Write) __________1000

                nonoperating ____________________1000

       POWER REQUIREMENTS: Maximum Current (mA)

Reading 5v/12v __________________.../NA

                Writing 5v/12v __________________.../NA

                Erasing 5v/12v __________________.../NA

       IBM AT DRIVE TYPE ________________________

       Physical:

                        Height (inches/mm):     0.196/5

                        Width  (inches/mm):     2.126/54.0

                        Depth  (inches/mm):     3.37/85.6

                        Weight      (oz/g):     1.34/38

Seagate reserves the right to change, without notice, product

offerings or specifications. (11/08/93)


ST-720P

                             ST-720P

                      Solid State FlashCard

       FORMATTED CAPACITY _______________________20.9

       TRANSFER RATE To/From Memory (Mbytes/sec) up to 2.5

       TRANSFER RATE To/From Interface __________up to 6

       CONTROLLER OVERHEAD (msec-Command to DRQ) <1.5

       STARTUP TIMES:

        Sleep to Write (msec) ___________________<3

        Sleep to Read  (msec) ___________________<2

       INTERFACE ________________________________PCMCIA/ATA

        Auto Sense of interface type

        PCMCIA Card Type II

       MTBF (power-on hours) Office _____________250,000

       SHOCK (G's):

                operating (Read/Write) __________1000

                nonoperating ____________________1000

       POWER REQUIREMENTS: Maximum Current (mA)

Reading 5v/12v __________________100/NA

                Writing 5v/12v __________________100/30

                Erasing 5v/12v __________________100/20

       IBM AT DRIVE TYPE ________________________

       Physical:

                        Height (inches/mm):     0.196/5

                        Width  (inches/mm):     2.126/54.0

                        Depth  (inches/mm):     3.37/85.6

                        Weight      (oz/g):     1.34/38

Seagate reserves the right to change, without notice, product

offerings or specifications. (11/08/93)


ST-720P5

                             ST-720P5

                      Solid State FlashCard

       FORMATTED CAPACITY _______________________20.9

       TRANSFER RATE To/From Memory (Mbytes/sec) up to 3

       TRANSFER RATE To/From Interface __________up to 6

       CONTROLLER OVERHEAD (msec-Command to DRQ) <1.25

       STARTUP TIMES:

        Sleep to Write (msec) ___________________<2.5

        Sleep to Read  (msec) ___________________<2

       INTERFACE ________________________________PCMCIA/ATA

        Auto Sense of interface type

        PCMCIA Card Type II

       MTBF (power-on hours) Office _____________500,000

       SHOCK (G's):

                operating (Read/Write) __________1000

                nonoperating ____________________1000

       POWER REQUIREMENTS: Maximum Current (mA)

Reading 5v/12v __________________.../NA

                Writing 5v/12v __________________.../NA

                Erasing 5v/12v __________________.../NA

       IBM AT DRIVE TYPE ________________________

       Physical:

                        Height (inches/mm):     0.196/5

                        Width  (inches/mm):     2.126/54.0

                        Depth  (inches/mm):     3.37/85.6

                        Weight      (oz/g):     1.34/38

Seagate reserves the right to change, without notice, product

offerings or specifications. (11/08/93)


ST-7050P

                             ST-7050P

       UNFORMATTED CAPACITY _____________________

       FORMATTED CAPACITY (xx SECTORS) __________42.7

       ACTUATOR TYPE ____________________________STRAIGHT ARM

       TRACKS ___________________________________

       CYLINDERS ________________________________(user)

       HEADS ____________________________________2

       DISCS (1.8 in) ___________________________1

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______up to 16

       SPINDLE SPEED (RPM) ______________________3,545

       AVERAGE LATENCY (mSEC) ___________________8.46

       BUFFER ___________________________________32 Kbyte

        Multisegmented adaptive cache

       INTERFACE ________________________________PCMCIA/ATA

        Auto Sense of interface type

        PCMCIA Type III form factor

       SECTORS PER DRIVE ________________________83,520

       TPI (TRACKS PER INCH) ____________________2,748

       BPI (BITS PER INCH) ______________________53,200

       FCI (FLUX CHANGES PER INCH) ______________39,447

       AVERAGE ACCESS (ms) ______________________18

       SINGLE TRACK SEEK (ms) ___________________6

       MAX FULL SEEK (ms) _______________________28

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating _______________________10

                nonoperating ____________________300

       POWER REQUIREMENTS: +5V START-UP (amps) __0.45

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________1.2

                           IDLE _________________0.42

                           STANDBY ______________0.1

                           SLEEP ________________0.06

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________0

       Physical:

                        Height (inches/mm):     0.413/10.5

                        Width  (inches/mm):     2.13/54.0

                        Depth  (inches/mm):     3.38/85.7

                        Weight      (oz/g):     3/85

 * MAY REQUIRE FORMATTING AND PARTITIONING SOFTWARE.  ALSO, CHECK TO

SEE IF YOUR CMOS SETUP HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE

AVAILABLE. (see below)

Possible translation:  580 cyl, 9 heads, 16 sectors = 42,762,240

Note: A "custom" or "user-definded" CMOS drivetype  may ask for a

numerical value for the Write Precompensation cylinder and for the

Landing Zone cylinder.  A basic rule-of-thumb for drive models that do

not require the old Write Precomp technique or a Landing Zone because

they are Auto-Parking is to add 1 to the cylinder value being used. As

an example: If cylinders equaled 820, then both Write Precomp and

Landing Zone would be entered as 821. Some BIOS will convert this to

65535 or -1, which are functionally equivalent to "none (not used)".

PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Since a User-definable or Custom translation geometry may be used, it

is imperative that the values be written down and kept with your

permanent records for retrieval in the event of CMOS battery failure.

Seagate reserves the right to change, without notice, product

offerings or specifications. (02/24/94)


Telephones
Telephone numbers for Tech Support and BBS's

'A'  thru  'H'	'I'  thru  'P'	'Q'  thru  'Z'

Seagate's Telephone Numbers


Telephones A-H
 	Telephones 'A' thru 'H'

3COM                      408-980-8204     BBS

3COM                      800-NET-3COM     General

Acculogic                 714-454-8124     BBS

Acculogic                 800-234-7811     General

Acer America              800-833-8241     BBS

Acer Technologies Corp.   408-922-0333     Tech Support

Acumen Computer Systems   800-876-0486     General

Adaptec                   408-945-7727     BBS

Adaptec                   408-945-8600     General

Adaptec                   408-945-2550     Tech Support

Addstor                   415-688-0470     General

ADIC (Advanced Digital    800-336-1233     General

      Equip. Corp.)

Advanced Storage Concepts 512-335-1077     General

Ahead Systems             510-623-0900     General

Alpha Research            512-345-6465     General

Alps America              408-432-6000     General

Altos Computer Systems    408-258-6787     General

Always Technology                          see Bason Computers

AMI (Bios)                770-246-8780     BBS

AMI (Bios)                770-263-8181     Tech Support

ANSI (American Nat'l      212-642-4900     General

      Standards Inst.)

APCUG (Association of     408-439-9367     BBS

       PC User Groups)

Apple Computer            800-538-9696     Tech Support

Archive Corp.             714-641-0279     General

Areal Technology          408-436-6800     General

ARCO Electronics          305-925-2688     General

Artisoft Inc.             602-293-6363     General: LANtastic

Ashton-Tate               408-431-2275     BBS

AST Research              714-727-4723     BBS

Atari                     408-745-2000     General

AT&T                      800-247-1212     Tech Support

AT&T Support              201-769-6397     BBS

ATI Technologies          416-756-4591     BBS

ATI Technologies          416-756-0711     Tech Support

Aura Assoc.               408-252-2872     General

Award (Bios)              415-968-0249     BBS

Award (Bios)              415-968-4433     Tech Support

Bason Computers           818-727-0530     BBS: Always Tech.

Bason Computers           818-727-9054     Tech Support

Bi-Tech Enterprises       516-567-8155     General

Borland                   408-439-9096     BBS

Brand Technologies        818-407-4040     General

Brown Bag Software        408-371-7654     BBS

BusLogic (BusTek)         408-492-1984     BBS

BusLogic (BusTek)         408-492-9090     General

Byte (magazine)           617-861-9764     BBS

Canon USA                 516-488-6528     BBS

Cardinal Technologies     717-293-3074     BBS

Catapult Systems          510-659-0365     General

Central Point Software    503-690-6650     BBS

Central Point Software    503-690-8090     Tech Support: PC Tools

Chicony                   714-771-9067     Tech Support

Chips & Technologies      408-434-0600     General

Chipsoft                  619-453-5232     BBS

Ciprico                   612-559-4258     BBS

Ciprico                   612-551-4000     General

CMS Enhancements          714-517-0915     General

CMS Enhancements          800-555-1671     Tech Support

CoComp                    800-873-0247     General, SCSI software

Colorado Memory Systems   303-679-0650     BBS

Colorado Memory Systems   800-432-5858     Tech Support

Columbia Data Products    407-862-4742     BBS

Columbia Data Products    407-869-6700     General

Commodore Business Mach.  215-431-9100     Tech Support

Compaq (US)               800-345-1518     Tech Support

Compaq (Canada)           800-263-5868     Tech Support

Compuadd                  800-456-3116     Tech Support

CompuServ Info. Serv.     800-848-8199     General

Computer Peripherals Inc  805-499-9646     BBS

Computer Peripherals Inc  805-499-5751     Tech Support

Conner Peripherals        408-456-4415     BBS

Conner Peripherals        408-456-3388     Tech Support

Control Concepts Inc      703-876-6444     General

Control Data Corp. (CDC)  612-851-4131     General

Core International        407-241-2929     BBS

Core International        407-997-6044     Tech Support

Cornerstone Technology    408-435-8943     BBS

Cornerstone Technology    408-435-8900     Tech Support

Corporate Systems Center  408-737-7312     General

Creative Interaction Tech 800-545-2442     Tech Support: AshWIN

Creative Labs             405-742-6660     BBS

Creative Labs             405-742-6655     Tech Support

Crystal Computer Services 604-681-9516     BBS

Crystal Computer Services 604-669-8379     Tech Support

Crosstalk Communications  404-641-1803     BBS

Data Technology Corp      408-942-4010     BBS

Data Technology Corp      408-262-7700     Tech Support

Data Technology Corp      408-942-4005     Auto-Fax System

Dell Computer             800-624-9896     Tech Support

Delphi Online Service     800-365-4636     BBS

Diamond Flower Inc        800-929-2727     Tech Support

Digiboard Inc.            612-922-5604     BBS

Digiboard Inc.            612-922-8055     Tech Support

Digital Equip. Corp.(DEC) 508-493-5111     General

Digital Research          408-646-6464     Tech Support

Digitrend Systems Corp.   818-772-0190     General

Dilog                     408-241-3192     General

Disctec                   800-553-0337     General

Distr. Process Technology 407-830-5522     Tech Support

DPT (Dist Process Tech)   407-831-6432     BBS

DPT (Dist Process Tech)   800-322-4378     General

DPT (Dist Process Tech)   407-830-5522     Tech Support

DTK Computer              818-810-4724     BBS

DTK Computer              818-810-0098     General

DTK (Bios)                818-333-7533     Tech Support

Dysan Corp.               408-988-3472     Tech Support

Emulex Corp.              800-368-5393     General

Epson                     213-539-9955     Tech Support

Everex Systems            510-226-9694     BBS

Everex Systems            510-498-4411     Tech Support

Fifth Generation Systems  504-295-3344     BBS

Fifth Generation Systems  800-873-4384     Tech Support: Mace, Fastback

Frye Computer Systems     617-753-0488     BBS

Frye Computer Systems     617-451-5400     Tech Support

Fujitsu America, Inc.     408-944-9899     BBS

Fujitsu America, Inc.     800-826-6112     Tech Support

Future Domain             714-253-0432     BBS

Future Domain             714-253-0400     Tech Support

Gazelle Systems           800-233-0383     Tech Support: Optune

GEnie Information Service 800-638-8369     BBS

Genoa                     408-943-1231     BBS

Genoa                     408-432-9090     Tech Support

Gibson Research           714-830-3300     BBS

Gibson Research           714-830-2200     Sales/Tech Support: Spinwrite

Goldstar                  408-432-1331     Tech Support

GSI Inc                   714-261-7949     General

GVC Technologies          201-579-2380     BBS

Hayes Public BBS          404-446-6336     BBS

Headland Technology       510-656-0503     BBS

Headland Technology       800-238-0101     General

Hercules Computer Tech.   510-623-7034     BBS

Hewlett-Packard Co.       208-323-2551     Tech Support

Hitachi                   617-890-0804     Tech Support

Hitachi                   800-851-2460     "HitFax" Fax demand

Hyundai Electronics       800-234-3553     Tech Support


Telephones I-P
 	Telephones 'I' thru 'P'

IBM PC Users Group        404-835-6600     BBS

IBM                       800-426-2468     General

Intel                     800-538-3373     Tech Support

Intel Support             503-645-6275     BBS

Irwin Magnetics           313-930-9380     BBS

Kalok Corp.               408-747-1315     General

Kaypro                    619-481-3900     Tech Support

Keytronics                800-262-6006     Tech Support

Kimpsion Intern'l         818-330-5500     Tech Support

Kodiak Technology         800-777-7704     Tech Support

Kodiak Technology         408-452-0677     BBS

Kolod Research            708-291-1586     General

Kyocera Unison Inc.       415-848-6680     General

LAN (magazine)            415-267-7640     BBS

Laura Technologies        602-940-9800     General

Logitech                  415-795-0408     BBS

Logitech                  415-795-8100     Tech Support

Lotus Development         617-577-8500     General

Mace, Paul Software       714-240-7459     BBS

Mace, Paul Software       800-523-0258     Tech Support

Maxtor/Miniscribe         303-678-2222     BBS

Maxtor/Miniscribe         800-356-5333     Tech Support

McAfee Assoc              408-988-4004     BBS, virus protection software

McAfee Assoc              408-988-3832     Tech Support

Micro House International 303-443-9957     BBS

Micro House International 303-443-3389     Tech Support (USA)

Micro House International 800-926-8299     General: EZ-Drive, DrivePro

Micro House Europe        31 4927-60900    Tech Support (Holland)

Micro House Europe        31 4927-61072    BBS

Microbotics               214-437-5330     Tech Support

Microid Research          408-727-6991     General: MR Bios

Micronet                  714-837-6033     General

Micronics                 510-651-6837     BBS

Micropolis Corp.          818-709-3310     BBS

Micropolis Corp.          818-709-3325     Tech Support

Microsoft                 206-637-9009     BBS

Microsoft                 206-646-5104     Tech Support: DOS, person

Microsoft                 206-646-5103     Tech Support: DOS, recordings

Microsoft                 206-637-7099     Tech Support: Windows Applica'n

Microsoft                 206-637-7098     Tech Support: Windows Interface

Microsoft                 206-635-7000     Tech Support: Windows 95

Mitsubishi Inc.           213-324-3092     BBS

Mitsubishi Inc.           213-515-3993     Tech Support

Mouse Systems             415-683-0617     BBS

Mouse Systems             415-656-1117     Tech Support

Morse Technology Inc      818-854-8688     General

Multi-Tech Systems        612-785-9875     BBS

Multisoft                 800-283-6858     General: PCKwik

Mylex Corp.               510-796-6100     General

National Semiconductor    408-245-0671     BBS

NCL America               408-956-1040     General

NCR                       316-688-8529     Tech Support

NEC Technologies          508-635-4706     BBS

NEC Technologies          800-388-8888     General

New Media Graphics        508-663-7612

Norton                    213-319-2020     Tech Support

Norton/Symantec           503-484-6669     BBS

Novell                    801-429-3030     BBS

Novell                    CompuServ        BBS, Go NetWire

Novell                    800-638-9273     Tech Support

Okidata                   800-283-5474     BBS

Okidata                   609-235-2600     Tech Support

Olivetti Office USA       201-526-8200     General

OMTI/Scientific Micro     408-954-1633     Tech Support

Ontrack Data Internatl   612-937-0860     BBS

Ontrack Data Internatl   800-752-1333     Sales: Disk Manager, Dosutils

Ontrack Data Internatl   612-937-2121     Tech Support

Ontrack Data Recovery     800-872-2599     Data Recovery

Orchid Technology         510-683-0327     BBS

Orchid Technology         510-683-0323     Tech Support

Packard Bell              818-773-7207     BBS

Packard Bell              800-733-4411     Tech Support

Palindrome                708-505-3336     BBS

Palindrome                847-882-0067     Tech Support

Panasonic Comm. Sys.      201-863-7845     BBS

Paradise                  415-968-1834     BBS

Paradise                  800-832-4778     Tech Support

Perceptive Solutions      214-954-1856     BBS

Perceptive Solutions      800-486-3278     General

Perstore                  602-894-4601     Tech Support

Phoenix (Bios)            617-551-4000     Tech Support

PKWare (PKZip)            414-354-8670     BBS

Plus Development          408-434-1664     BBS

Plus Development          800-826-8022     Tech Support in Calif.

Plus Development          900-740-4433     Tech Support out of Calif.

Priam Systems             408-434-1646     BBS

Priam Systems             408-954-8680     Tech Support

Prime Solutions           619-272-9240     BBS

Prime Solutions           800-847-5000     Tech Support: Disk Technician

Procom                    800-800-8600     General: host adapters

ProComm Support           314-474-8477     BBS: PCPlus communications

Procomp USA               216-234-6387     General: Novell DCB's

Promise Technology        408-452-0948     General

Promise Technology        408-452-1180     Tech Support

Promise Technology        408-452-1534     BBS

PTI                       303-763-7488     General, SCSI software


Telephones Q-Z
 	Telephones 'Q' thru 'Z'

QMS                       205-633-3632     BBS

QMS                       205-633-4500     Tech Support

Quantum                   408-894-3214     BBS

Quantum                   408-894-4000     General

Quarterdeck Office Syst.  310-314-3227     BBS

Quarterdeck Office Syst.  310-392-9701     Tech Support: Manifest, DeskView

Quarterdeck Office Syst.  310-314-3217     TS FAX

Rancho Technology         909-987-3966     Tech Support

Ricoh Corp.               201-882-2000     General

Rodime Inc.               407-997-0774     General

Samsung Info. Syst.       408-434-5684     BBS

Samsung Info. Syst.       800-446-0262     Tech Support

Santa Cruz Operation (SCO)800-347-4381     Tech Support

Seagate Enterprise

 Management Software      408-342-4747     BBS (NetLabs)

                          800-961-0501     Tech Support

Seagate's Telephone Numbers                Complete International Listing

Seagate Technology        408-434-1080     BBS United States (Disc)

Seagate Technology        408-456-4415     BBS United States (Tape)

Seagate Technology        44-1628-478011   BBS England

Seagate Technology        33 1-48 25 35 95 BBS France

Seagate Technology        49-89-140-9331   BBS Germany

Seagate Technology        65-292-6973      BBS Singapore

Seagate Technology        61-2-9756-2359   BBS Australia

Seagate Technology        662-531-8111     BBS Thailand

Seagate Technology        886-2-719-6075   BBS Taiwan

Seagate Technology        ftp.seagate.com  Internet

Seagate Technology        www.seagate.com  Internet

Seagate Technology        408-438-6550     General, Corporate HQ

Seagate Technology        800-732-4283     Tech Support-SeaFONE

Seagate Technology        408-944-9120     Tech Support FAX

Seagate Technology        800-732-4283     Automated SeaFAX System

Seagate Technology        408-438-8111     Pre-Sales for Disc Products

Seagate Technology        800-626-6637     Pre-Sales for Tape Products

Seagate Technology        800-468-3472     Cust. Service (Warranty/Repair)

Sharp Electronics         404-962-1788     BBS

Shugart Associates        602-294-0898     Tech Support

Silicon Graphics          415-960-1980     General

Silicon Graphics          800-800-4744     Tech Support

Silicon Valley Computers  415-967-8081     BBS

Silicon Valley Computers  415-967-1100     General

Softlogic Solutions       800-272-9900     Tech Support: Disk Optimize

Sony Corp.                408-432-0190     General: Drives

Stac Electronics          619-431-5956     BBS: Stacker

Storage Dimensions        408-944-1207     Tech Support: Speedstor

Sumo Systems              408-453-5744     General

SunDisk                   408-562-0500     General

Sun Microsystems          800-USA-4SUN     Tech Support

Syquest                   510-226-4000     For ST02 v3.1

Syquest                   510-226-4280     Tech Support

Tandon Corp.              805-523-0340     General

Tandy Corp.               817-390-3011     General

Tandy Corp.               817-878-6875     Tech Support

Tatung Co. of America     213-979-7055     Tech Support

Teac America, Inc.        213-726-0303     Tech Support

Tech Data                 813-538-7090     BBS

Tech Data                 800-553-7977     Tech Support

Telebit Corp.             408-745-3803     BBS

Telebit Corp.             800-835-3248     Tech Support

Telix Support             416-439-9399     BBS

Texas Instruments         512-250-6112     BBS

Texas Instruments         512-250-7407     Tech Support

TOPS Support              415-769-8874     BBS

Toshiba America           714-837-4408     BBS

Toshiba America           800-999-4273     Tech Support

Trantor Systems           510-656-5159     BBS

Trantor Systems           510-770-1400     General

Trident                   415-691-1016     BBS

Trident                   415-691-9211     Tech Support

Tulin                     408-432-9025     General

Ultrastor                 714-581-4125     BBS

Ultrastor                 714-581-4100     General

Ultrastor                 714-581-4016     Tech Support

USNO Time of Day          202-653-0351     BBS

U.S.Robotics              708-982-5092     BBS

Ven Tel                   408-922-0988     BBS

Video Seven               (now Headland Tech.)

Western Digital           714-753-1234     BBS

Western Digital           800-832-4778     Tech Support

WordPerfect Corp.         801-225-4414     BBS

WordPerfect Corp.         800-541-5096     Tech Support

Wyse Technology           408-922-4400     BBS

Wyse Technology           408-435-2770     Tech Support

Xerox Computer Serv.      213-306-4000     General

XTree                     805-546-9150     BBS

Y-E Data                  714-898-3677     General (C.Itoh drv suppt)

Zenith Data Systems       800-888-3058     BBS

Zeos                      800-228-5390     Tech Support

Zsoft                     404-427-1045     BBS

ZyXEL                     714-693-0762     BBS


Telephones - Seagate Worldwide
 	Seagate Telephones

  _ _ _

 / / (_)

 _\ \ \

(_)_/_/

Seagate Technology, Inc.

Corporate Headquarters:

920 Disc Drive

Scotts Valley

California  95066

U.S.A.

General, Corporate	408-438-6550

General, Corporate FAX	408-429-6356

Pre-Sales Support	Disc:	408-438-8111

Tape:	1-800-626-6637

Software:	1-800-327-2232

USA Sales Offices

International Sales Offices

Seagate Service Centers for Warranty and Repair

Seagate Technical Support

Seagate Software Companies


Telephones - Seagate USA Sales
 	Seagate USA Sales Offices

  _ _ _

 / / (_)

 _\ \ \

(_)_/_/

Seagate Technology, Inc.

USA Sales Offices:

Arizona:

367 E. Briarwood Terrace

Phoenix, AZ  85048

Main	602-460-1499

FAX	602-460-1708

California:

1650 Sunflower Ave.

Costa Mesa, CA  92626

Main	714-641-1230

FAX	714-966-5573

Koll Center Irvine North-East Tower

2010 Main Street, Suite 120

Irvine, CA  92614

Main	714-252-7800

FAX	714-261-5926; 714-261-2740

1 Packard Bell Way

Building 1, Bay 6

Sacramento, CA  95828-0903

Main	916-388-7949

FAX	916-383-7690

2720 Orchard Parkway, M/S 03-202

San Jose, CA  95134

Main	408-456-4500

FAX	408-452-2077

3081 Zanker Rd.

San Jose, CA  95134

Main	408-456-4500

FAX	408-456-4501

Colorado:

1439 St. Andrews Dr.

Broomfield, CO  80020

Main	303-439-9788

FAX	303-438-1934

Florida (Latin America):

5200 Blue Lagoon Drive

4th Floor, Suite 410

Miami, FL 33126

Main	305-262-7888

FAX	305-262-3070

Georgia:

294 Interstate North Circle, Suite 100

Atlanta, GA 30339

Main	770-303-5000

FAX	770-956-0287

Illinois:

2275 Half Day Road, Suite 350

Bannockburn, IL  60015

Main	847-821-2611

FAX	847-821-2612

Massachusetts:

239 Littleton Road, Suite 3B

Westford, MA 01886

Main	508-692-8585

FAX	508-692-8599

Minnesota:

5001 West 80th Street, Suite 505

Bloomington, MN 55437

Main	612-806-3132

FAX	612-806-3111

New Jersey:

302 Harper Drive, Suite 101

Moorestown, NJ 08057

Main	609-234-3799

FAX	609-234-5887

South Carolina:

2211 Standing Springs Road

Greenville, SC   29605

Main	803-299-3005

FAX	803-299-1564

Texas:

5000 Quorum Drive, Suite 485

Dallas, TX 75240

Main	214-448-8050

FAX	214-448-8070

20405  S.H. 249

Suite 460

Houston, Texas  77070

Main	713-257-7300

FAX	713-257-7337


Telephones - Seagate International Sales
 	Seagate International Sales Offices

  _ _ _

 / / (_)

 _\ \ \

(_)_/_/

Seagate Technology, Inc.

International Sales Offices:

Brazil (Manufacturer's Rep.):

Miranda and Associates

Rua Visconde de Inhauma 77, 7th Floor

Rio de Janeiro, RJ

Brazil 20091 -000

Main	55-21-253-6649

FAX	55-21-253-6467

Rua Urissui 71

cj 45, 4th floor

São Paulo, 04542-050

Main	55-11-820-7794

FAX	55-21-829-2217

Canada:

50 Burnhanthorpe Rd. West

Suite 401, Mississauga, Ontario

L5B 3C2, Canada

905-272-3216

Asia/Pacific Headquarters:

Seagate Technology International

202 Kallang Bahru

Seagate Building, No. 08-21

Singapore 339339

Main	65-292-6266

FAX	65-299-5176;   65-299-5181

Australia:

1st Floor, 17/18,  Walker  Place

Wetherill Park NSW 2164

Australia

Main	61-2-9725-3366

FAX	61-2-9725-4052

Hong Kong:

Seagate Technology International

Room 1001, Energy Plaza

92 Granville Road

Tsim Sha Tsui East

Kowloon,

Hong Kong

Main	852-2368-9918

FAX	852-2368-7173

Japan:

Nippon  Seagate Inc.

Tennoz Parkside Bldg. 3F

2-5-8, Higashi-Shinagawa,

Shinagawa-Ku,

Tokyo, 140

Japan

Main	81-3-5462-2901

FAX	81-3-5462-2978

Korea:

Seagate Technology Korea, Ltd.

9th Floor, Dongshin Building

141-28, Samsung-Dong

Kangnam-ku,

Seoul 135-090

Korea

Main	82-2-556-8241

FAX	82-2-556-4251; 82-2-556-6980

TLX	787-26820 ST KOREA

Singapore:

152 Beach Road

#34-05-08 Gateway East

Singapore 189721

Main	65-296-1992

FAX	65-294-1198

Taiwan:

Room C, 9th Floor, No. 363

Fu Hsin North Road

Taipei, Taiwan,

R.O.C.

Main	886-2-545-1305

FAX	886-2-719-5681; 886-2-719-5712

Europe, Middle East and Africa Headquarters:

62 bis, avenue André Morizet

92643 Boulogne-Billancourt Cedex

France

Main	33 1-41 86 10 00

FAX	33 1-48 25 28 61

Africa

Seagate Africa

372b Oak Avenue Randburg

P.O. Box 3452

Randburg 2125

South Africa

Main	27-11-781-2200

FAX	27-11-781-2214

Germany:

Messerschmittstrasse 4

80992 München

Germany

Main	49-89-14305000

Tech	49-89-1409332

FAX	49-89-14305100

TLX	841-524-275 SEAG D

Ireland:

208 Holywell

Kilmacud Road Upper

Dublin 14

Ireland

Main	353-1-298-1865

FAX	353-1-298-1893

Italy:

Via Degli Artaria, No. 15

20161 Milan

Italy

Main	392-662-01515

FAX	392-662-02530

Sweden:

Seagate Technology AB

Torshamnsgatan 35

164 40 Kista

Sweden

Main	46-8-750 31 20

FAX	46-8-752 05 65

United Kingdom:

Seagate House

Globe Park

Fieldhouse Lane

Marlow Bucks SL7 1LW

United Kingdom

Main	44-1628-890366

FAX	44-1628-890660

TLX	846218 SEAGAT G


Telephones - Warranty Repair
 	Seagate Warranty and Repair Offices

  _ _ _

 / / (_)

 _\ \ \

(_)_/_/

Seagate Technology, Inc.

Warranty and Repair Offices:

United States	800-468-3472

FAX	405-949-6740

Canada, Mexico, South America	405-949-6706

FAX 	405-949-6738

Asia/Pacific (Singapore)	65-290-3796

FAX	65-397-2082

Europe, Middle East, Africa	31-2065-33539

FAX 	31-2065-30890


Telephones - Seagate Tech Support
 	Seagate Technical Support Services

  _ _ _

 / / (_)

 _\ \ \

(_)_/_/

Seagate Technology, Inc.

Technical Support Services:

If you need assistance installing your drive, consult your dealer. Dealers are familiar with their unique system configurations and can help you with system conflicts and other technical issues. If you need additional assistance with your Seagate drive or other Seagate products, use one of the Seagate technical support services listed below.

SeaFONE® at 1-800-SEAGATE (1-800-732-4283)

Seagate's 800 number allows toll-free access to automated self-help services, providing answers to commonly asked questions, troubleshooting tips and specifications for disc drives and tape drives. This service is available 24 hours daily and requires a touch-tone phone. If you need to speak to a technical support engineer, use this number to determine the correct access number to dial. (International callers may also reach this automated self-help service by dialing 408-456-4496)

Seagate Technology online services

Using a modem, you can obtain troubleshooting tips, free utility programs, drive specifications and jumper settings for Seagate's entire product line. You can also download software for installing and analyzing your drive.

SeaNET™

You can obtain technical information on Seagate drives, Seagate software and much more over the Internet from Seagate's World Wide Web home page (http://www.seagate.com) or Seagate's ftp server (ftp://ftp.seagate.com).  You may also send E-mail with your questions to DiscSupport@notes.seagate.com or TapeSupport@notes.seagate.com.

SeaBOARD®

SeaBOARD is a computer bulletin board system (BBS) that contains information about Seagate's disc and tape drive products and is available 24 hours daily. Set your communications software to eight data bits, no parity and one stop bit (8-N-1). SeaBOARD phone numbers are listed in the following table.

BBS Location 	Modem number

United States 	Disc: 408-434-1080;	Tape: 408-456-4415

England 	44-1628-478011

France 	33 1-48 25 35 95

Germany 	49-89-140-9331

Singapore 	65-292-6973

Australia 	61-2-9756-2359

Taiwan	886-2-719-6075

Seagate CompuServe forum

Online technical support for Seagate products is available on CompuServe. To access our technical support forum, type go seagate. This forum provides information similar to that found on SeaBOARD.  In addition, you can type questions or browse through previous questions and answers on the forum messages.

Seagate Technology FAX services

SeaFAX®

You can use a touch-tone telephone to access Seagate's automated FAX system to receive technical support information by return FAX. This service is available 24 hours daily.

Location 	Telephone number

United States 	1-800-SEAGATE or 408-456-4496

England 	44-1628-894084

Australia 	61-2-9756-5170

Seagate technical support FAX

You can FAX questions or comments to technical support specialists 24 hours daily. Responses are sent during business hours.

Location 	FAX number

United States 	408-944-9120	(8:00 A.M. to 5:00 P.M. Pacific time, MF)

England	44-1628-890660	(9:00 A.M. to 5:30 P.M., MF)

France	33 1-46 04 42 50	(9:00 A.M. to 6:00 P.M., MF)

Germany	49-89-1430-5100

Australia	61-2-9725-4052

Singapore	65-293-4722

Hong Kong	852-2368 7173

Taiwan	886-2-715-2923

Korea	82-2-556-7294/4251

Seagate technical support

You can talk to a technical support specialist during business hours Monday through Friday for one-on-one technical help.  Before calling, note your system configuration and drive model number (STxxxx). There are several technical support phone numbers available for various Seagate products.

Location 	Telephone  number

United States	Please dial 1-800-SEAGATE for the specific product telephone number.

(6:00 A.M. to 5:00 P.M., MF)

England 	44-1628-894083

(10:00 A.M. to 1:00 P.M., 2:00 P.M. to 5:00 P.M., MF)

France 	33 1-41 86 10 86

(9:30 A.M. to 12:30 P.M., 2:00 P.M. to 5:00 P.M., MF)

Germany 	Disc: 49-89-140-9332;

Tape: 49-89-140-9333

(9:30 A.M. to 12:30 P.M., 2:00 P.M. to 4:00 P.M., MF)

Australia 	61-2-9725-3366

(9:00 A.M. to 5:00 P.M., MF)

Singapore	65-485-3998

(9:00 A.M. to 12:00 P.M., 2:00 P.M. to 5:00 P.M., MF)

Hong Kong	852-2368 9918

Taiwan	886-2-514-2237

Korea	82-2-556-8241

SeaTDD™ 408-944-9121

Using a telecommunications device for the deaf (TDD), you can send questions or comments 24 hours daily and exchange messages with a technical support specialist between 6:00 A.M. to 11:15 A.M. and 12:30 P.M. to 5:00 P.M. (Pacific time) Monday through Friday.

===================================================================

"Seagate, Seagate Technology and the Seagate Logo are registered trademarks of Seagate Technology, Inc. SeaFAX, SeaFONE, SeaBOARD, SeaTDD, SeaNET, Medalist and DiscWizard are either trademarks or registered trademarks of Seagate Technology, Inc. or one of its subsidiaries. All other trademarks or registered trademarks are the property of their respective owners."


 	Seagate Software

  _ _ _

 / / (_)

 _\ \ \

(_)_/_/

Seagate Technology, Inc.

Seagate Software Locations

Corporate Headquarters

920 Disc Drive

Scotts Valley, CA  95066

Main	438-438-6550

FAX	428-6356

Information Management Group

1095 West Pender Street, 4th Floor

Vancouver, BC

Canada V6E 2M6

Main	604-681-3435

FAX	604-681-2934

Storage Management Group

37Skyline Drive

Lake Mary, FL  32746

Main	407-333-7500

FAX	407-333-7730

Network & Systems Management Group

31 Saint James Avenue

Boston, MA  02116

Main	617-368-3300

FAX	617-753-0484

19925 Stevens Creek Boulevard

Cupertino, CA  95014

Main	408-342-4500

FAX	408-342-4600

European Headquarters

Seagate Software SA

Paris, France

Main	33 1 41 10 16 00

FAX	33 1 46 04 74 19

Seagate Software GmBH

Willich, Germany

Main	49 0 21 54/91 63-50

FAX	49 0 21 54/91 63-70

Seagate Software Ltd.

Berkshire, United Kingdom

Main	44-1628-771-299

FAX	44-1628-771-523


 	Conner Peripherals phone listings

CONNER PERIPHERALS

WORLD HEADQUARTERS

Corporate/Disk Products Group

3081 Zanker Road

San Jose, CA 95134

Phone : (408) 456-4500

FAX : 	(408) 456-4501

Storage Systems Group

450 Technology Park Drive

Lake Mary, FL 32746

Phone : (407) 263-3500

FAX : 	(407) 263-3627

Tape Products Group

1650 Sunflower Avenue

Costa Mesa, CA 92626

Phone : (714) 641-1230

FAX : 	(714) 641-2590

Arcada Software

37 Skyline Drive

Lake Mary, FL 32746

Phone : (407) 333-7500

FAX : 	(407) 333-7770

TS:	(407) 333-7600

BBS:	(407) 444-9979

SALES OFFICES

United States

Northeast Region

(617) 449-9550

(908) 879-5005

Southeast Region

(404) 806-3900

(813) 538-0825

Central Region

(214) 789-2800

(612) 449-5186

(303) 682-8642

(512) 346-5706

Northwest Region

(408) 456-4500

Southwest Region

(714) 641-4482

(818) 597-8895

Canada

Ontario 	(905) 272-3216

Europe

Aosta 	39/125-800111

London 	44/1628-777277

Munich 	49/89-996-5570

Paris 	33/1-4745-9250

Asia

Hong Kong 	852/560-0229

Seoul 	82/2-551-0511

Singapore 	65/296-1992

Taipei 	886/2-718-9193

Tokyo 	81/3-3485-8901

Latin America

Miami 	(305) 789-6685

SERVICES

CONFAX FAX INFORMATION

Disk/Tape Products

West Coast: 	(408) 456-4903

East Coast: 	(407) 262-4755

United Kingdom: 	4/1294-315205

Software Products 	1- 800-272-2232

RAID Products 	1-800-724-3511

CONNER EXPRESS

Retail disk and tape products, tapes, cleaning kits, software upgrades, spare parts and controller cards. Exceptionally fast and reliable service. 1-800-531-0968

CUSTOMER SERVICE

1-800-537-2248

PRODUCT SUPPORT

Disk/Tape Products

Technical : 	1-800-426-6637

Sales : 	1-800-626-6637

Software Products 	1-800-3ARCADA

RAID Products 	1-800-RAID511

FULL LINE PRODUCT GUIDE

1-800-845-2215

BBS

(408) 456-4415


ST-1106R
ST-1106R ST412 RLL

                                                          /ÄÄÄ¿

                                                          ³ 0 ³12

                                                          ³ 0 ³G

                                                          ³ 0 ³G

                                                          ³ 0 ³5

               ÚData Cable      ÚController Cable    1    \ÄÄÄÙ

               ÍÍÍÍÍÍÍÍÍ ÍÍ    ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍÍÍ   ÍÍÍÍÍÍÍ

                       o o o o o o o o ÚÄÄÄÄÄÄÄÄÄÄÄÄ1

                       o o o o o o o o ÀÄÄÂÄÄÄÄÄÄÄÄÄÙ

                       ³ ³ ³ ³ 4 3 2 1    À Resistor Termination Pack

    (front corner)     ³ ³ ³ ³ ÄÄÄÂÄÄÄ

    Úo Optional        ³ ³ ³ ³    ³

    Ào LED             ³ ³ ³ ³    ÀÄÄÄÄ Drive Selects

       Connector       ³ ³ ³ ÀÄÄÄÄÄÄÄÄÄ Factory Test

                       ³ ³ ÀÄÄÄÄÄÄÄÄÄÄÄ Not Used

                       ³ ÀÄÄÄÄÄÄÄÄÄÄÄÄÄ Recovery Mode

                       ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Radial

                             ST-1106R

       UNFORMATTED CAPACITY (MB) ________________106.6

       FORMATTED CAPACITY (26 SECTORS) (MB) _____91

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________3,908

       CYLINDERS ________________________________977

       HEADS ____________________________________7

       DISCS ____________________________________4

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL

       TRANSFER RATE (mbits/sec) ________________7.5

       SPINDLE SPEED (RPM) ______________________3,600

       INTERFACE ________________________________ST412

       TPI (TRACKS PER INCH) ____________________1,900

       BPI (BITS PER INCH) ______________________21,162

       AVERAGE ACCESS (ms) ______________________24

       SINGLE TRACK SEEK (ms) ___________________8

       MTBF (power-on hours) ____________________50,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.0

                           +12V TYPICAL (amps) __0.45

                           +5V START-UP (amps) __

                           +5V TYPICAL (amps) ___0.5

                           TYPICAL (watts) ______8

                           MAXIMUM (watts) ______

       BUFFERED STEP PULSE RATE (micro sec) _____

       WRITE PRECOMP (cyl) ______________________N/A (978)

       REDUCED WRITE CURRENT (cyl) ______________N/A (978)

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________*

 * MAY REQUIRE A CONTROLLER WITH BIOS SUPPORT, OR FORMATTING

   AND PARTITIONING SOFTWARE.  ALSO, CHECK TO SEE IF YOUR CMOS SETUP

   HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE.

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-1150R
ST-1150R (94355-150) Swift ST412 RLL

     ÚÄÄÄ\

     ³ O ³  5

     ³ O ³  G

     ³ O ³  G                                          ÚÄÄÄ Located on rear

     ³ O ³ 12                                          ³     side of drive

     ÀÄÄÄ/          Ú Controller Cable                 ³

     ÍÍÍÍÍÍÍÍ ÍÍ   ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍÍ            ÚÄÄÄÄÄÁÄÄÄÄÄ¿

      ÀData Cable    ÚÄÄÄÄÄÄÄÄÄÄ¿   1             o o o o o o

                     1ÄÄÄÄÄÄÄÄÄÄÙ                 o o o o o o   (front)

                      Terminator                  1 2 3 4 R Ext

                                                  ÄÄÄÂÄÄÄ ³ ³

                                                     ³    ³ ³

                                                     ³    ³ ³

                                                     ³    ³ ³

                                                     ³    ³ ³

                                Drive Selects  ÄÄÄÄÄÄÙ    ³ ³

                                Radial Select ÄÄÄÄÄÄÄÄÄÄÄÄÙ ³

                                External spindle clock  ÄÄÄÄÙ

                             ST-1150R

                          94355-150 Swift

       UNFORMATTED CAPACITY (MB) ________________150

       FORMATTED CAPACITY (26 SECTORS) (MB) _____128

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________9,648

       CYLINDERS ________________________________1,072

       HEADS ____________________________________9

       DISCS ____________________________________5

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL

       TRANSFER RATE (mbits/sec) ________________7.5

       SPINDLE SPEED (RPM) ______________________3,600

       INTERFACE ________________________________ST412

       TPI (TRACKS PER INCH) ____________________1,350

       BPI (BITS PER INCH) ______________________21,030

       AVERAGE ACCESS (ms) ______________________15

       SINGLE TRACK SEEK (ms) ___________________4

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.5

                           +12V TYPICAL (amps) __0.7

                           +5V START-UP (amps) __0.75

                           +5V TYPICAL (amps) ___0.4

                           TYPICAL (watts) ______10

                           MAXIMUM (watts) ______12

       BUFFERED STEP PULSE RATE (micro sec) _____6-200

       WRITE PRECOMP (cyl) ______________________300

       REDUCED WRITE CURRENT (cyl) ______________N/A (1073)

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________*

 * MAY REQUIRE A CONTROLLER WITH BIOS SUPPORT, OR FORMATTING

   AND PARTITIONING SOFTWARE.  ALSO, CHECK TO SEE IF YOUR CMOS SETUP

   HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE.

                          Swift Remote LED Option

               Front View of Drive Without the Plastic Bezel

                                  ÚÄÄÄÂÄÄÄ¿

                                  ³ A ³ B ³    B = Anode

                                  ÃÄÄÄÅÄÄÄ´    D = Cathode

                                  ³ C ³ D ³

              ...ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÏÍÍÍÏÍÍÍÍÍPÍWÍAÍÍÍ...

        ø Default jumper at C-D for LED mounted on drive PWA

        ø To use remote LED, remove jumper and extend B (Anode)

          and D (Cathode).

        ø Swift LED kit 75912397 allows connection to a remote LED

        ø Swift LED kit 95913369 has an LED for attachment to the

          system front bezel or a 5.25-inch frame kit

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-138R
ST-138R ST412 RLL

                                                            /ÄÄÄ¿

                                                            ³ O ³12

                                                            ³ O ³G

                                                            ³ O ³G

                                                            ³ O ³5

      ÚData Cable            ÚController Cable    1         \ÄÄÄÙ

      ÍÍÍÍÍÍÍÍÍ ÍÍ          ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍÍÍ   ÍÍÍÍÍÍÍÍÍÍÍÍ

              1 o o o o o o o ÚÄÄÄÄÄÄÄÄÄÄÄÄ1

              o o o o o o o o ÀÄÄÂÄÄÄÄÄÄÄÄÄÙ

              ³ ³ ³ ³ 4 3 2 1    À Resistor Termination Pack

              ³ ³ ³ ³ ÄÄÄÂÄÄÄ

              ³ ³ ³ ³    ³

              ³ ³ ³ ³    ÀÄÄÄÄ Drive Selects

              ³ ³ ³ ÀÄÄÄÄÄÄÄÄÄ Factory Test

              ³ ³ ÀÄÄÄÄÄÄÄÄÄÄÄ Write Fault

              ³ ÀÄÄÄÄÄÄÄÄÄÄÄÄÄ Not Used

              ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Radial

Note: Some configurations have the drive select jumper block oriented

      perpendicular to the back of the drive. In this configuration,

      pin-1 (radial select) is closest to the front faceplate of the

      drive.

                        ST - 138R

       UNFORMATTED CAPACITY (MB) ________________38.4

       FORMATTED CAPACITY (26 SECTORS) (MB) _____32.7

       ACTUATOR TYPE ____________________________STEPPER

       TRACKS ___________________________________2,460

       CYLINDERS ________________________________615

       HEADS ____________________________________4

       DISCS ____________________________________2

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       TRANSFER RATE (mbits/sec) ________________7.5

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.3

       INTERFACE ________________________________ST412

       SECTORS PER DRIVE ________________________63,960

       TPI (TRACKS PER INCH) ____________________824

       BPI (BITS PER INCH) ______________________22,430

       AVERAGE ACCESS (ms)*______________________40/28

       SINGLE TRACK SEEK (ms) ___________________8

       MAX FULL SEEK (ms) _______________________ /70

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.0

                           +12V TYPICAL (amps) __0.35

                           +5V TYPICAL (amps) ___0.8

                           TYPICAL (watts) ______8

                           MAXIMUM (watts) ______28

       BUFFERED STEP PULSE RATE (micro sec) _____3-200

       WRITE PRECOMP (cyl) ______________________N/A (616)

       REDUCED WRITE CURRENT (cyl) ______________N/A (616)

       LANDING ZONE (cyl)________________________AUTO PARK

       IBM AT DRIVE TYPE ________________________**

       *ST138R-0/ST138R-1

 ** MAY REQUIRE A CONTROLLER WITH BIOS SUPPORT, OR FORMATTING

   AND PARTITIONING SOFTWARE.  ALSO, CHECK TO SEE IF YOUR CMOS SETUP

   HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE.

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-157R
ST-157R ST412 RLL

                                                            /ÄÄÄ¿

                                                            ³ O ³12

                                                            ³ O ³G

                                                            ³ O ³G

                                                            ³ O ³5

      ÚData Cable            ÚController Cable    1         \ÄÄÄÙ

      ÍÍÍÍÍÍÍÍÍ ÍÍ          ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍÍÍ   ÍÍÍÍÍÍÍÍÍÍÍÍ

              1 o o o o o o o ÚÄÄÄÄÄÄÄÄÄÄÄÄ1

              o o o o o o o o ÀÄÄÂÄÄÄÄÄÄÄÄÄÙ

              ³ ³ ³ ³ 4 3 2 1    À Resistor Termination Pack

              ³ ³ ³ ³ ÄÄÄÂÄÄÄ

              ³ ³ ³ ³    ³

              ³ ³ ³ ³    ÀÄÄÄÄ Drive Selects

              ³ ³ ³ ÀÄÄÄÄÄÄÄÄÄ Factory Test

              ³ ³ ÀÄÄÄÄÄÄÄÄÄÄÄ Write Fault

              ³ ÀÄÄÄÄÄÄÄÄÄÄÄÄÄ Not Used

              ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Radial

Note: Some configurations have the drive select jumper block oriented

      perpendicular to the back of the drive. In this configuration,

      pin-1 (radial select) is closest to the front faceplate of the

      drive.

                           ST - 157R

       UNFORMATTED CAPACITY (MB) ________________57.7

       FORMATTED CAPACITY (26 SECTORS) (MB) _____49.1

       ACTUATOR TYPE ____________________________STEPPER

       TRACKS ___________________________________3,690

       CYLINDERS ________________________________615

       HEADS ____________________________________6

       DISCS ____________________________________3

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL

       TRANSFER RATE (mbits/sec) ________________7.5

       SPINDLE SPEED (RPM) ______________________3,600

       INTERFACE ________________________________ST412

       TPI (TRACKS PER INCH) ____________________824

       BPI (BITS PER INCH) ______________________22,430

       AVERAGE ACCESS (ms)*______________________40/28

       SINGLE TRACK SEEK (ms) ___________________8

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.0

                           +12V TYPICAL (amps) __0.35

                           +5V TYPICAL (amps) ___0.8

                           TYPICAL (watts) ______8

                           MAXIMUM (watts) ______28

       BUFFERED STEP PULSE RATE (micro sec) _____3-200

       WRITE PRECOMP (cyl) ______________________N/A (616)

       REDUCED WRITE CURRENT (cyl) ______________N/A (616)

       LANDING ZONE (cyl)________________________AUTO PARK

       IBM AT DRIVE TYPE ________________________**

       *ST157R-0/ST157R-1

 * MAY REQUIRE A CONTROLLER WITH BIOS SUPPORT, OR FORMATTING

   AND PARTITIONING SOFTWARE.  ALSO, CHECK TO SEE IF YOUR CMOS SETUP

   HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE.

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-225R
ST-225R ST412 RLL

                                                          /Ä4Ä3Ä2Ä1Ä\

                                                          ³ O O O O ³ Power

              o o o o o o o o                             ÀÄÄÄÄÄÄÄÄÄÙ

  ÚData Cable o o o o o o o o  ÚController Cable    1       5 G G 12

 ÍÍÍÍÍÍÍÍÍ ÍÍ ³ ³ ³ ³ ³ ³ ³ ³ ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍÍÍ   ÍÍÍÍÍÍÍÍÍÍÍÍ

              ³ ³ ³ ³ ³ ³ ³ ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄ1

              ³ ³ ³ ³ ³ ³ ³ ³ ÀÄTerminatorÄÙ

              ³ ³ ³ ³ ³ ³ ³ ³

Drive Select->1 2 3 4 ³ ³ ³ À Radial

                ³ ³ ³ ³ ³ ÀÄÄ Reserved

                ³ ÀÂÙ ³ ÀÄÄÄÄ Write Fault

                ³  ³  ÀÄÄÄÄÄÄ Factory Test

                ³  ÀÄÄÄÄÄÄÄÄÄ Never Used (Drive Select 3 and 4)

                À If twisted cable, use Drive Select 2

                              ST - 225R

       UNFORMATTED CAPACITY (MB) ________________25.0

       FORMATTED CAPACITY (31 SECTORS) (MB) _____21.2

       ACTUATOR TYPE ____________________________STEPPER

       TRACKS ___________________________________1,334

       CYLINDERS ________________________________667

       HEADS ____________________________________2

       DISCS ____________________________________1

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL

       TRANSFER RATE (mbits/sec) ________________7.5

       SPINDLE SPEED (RPM) ______________________3,000

       INTERFACE ________________________________ST412

       TPI (TRACKS PER INCH) ____________________588

       BPI (BITS PER INCH) ______________________18,897

       AVERAGE ACCESS (ms) ______________________70

       SINGLE TRACK SEEK (ms) ___________________20

       MTBF (power-on hours) ____________________100,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.4

                           +12V TYPICAL (amps) __0.9

                           +5V TYPICAL (amps) ___0.8

                           TYPICAL (watts) ______14.8

                           MAXIMUM (watts) ______33

       BUFFERED STEP PULSE RATE (micro sec) _____5-200

       WRITE PRECOMP (cyl) ______________________N/A (668)

       REDUCED WRITE CURRENT (cyl) ______________N/A (668)

       LANDING ZONE (cyl)________________________670

       IBM AT DRIVE TYPE ________________________*

       *MUST BE USED WITH THE ST11R CONTROLLER OR

        16-BIT CONTROLLER

 * MAY REQUIRE A CONTROLLER WITH BIOS SUPPORT, OR FORMATTING

   AND PARTITIONING SOFTWARE.  ALSO, CHECK TO SEE IF YOUR CMOS SETUP

   HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE.

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-238R
ST-238R (or ST-238) ST412 RLL

                                                          /Ä4Ä3Ä2Ä1Ä\

                                                          ³ O O O O ³ Power

              o o o o o o o o                             ÀÄÄÄÄÄÄÄÄÄÙ

  ÚData Cable o o o o o o o o  ÚController Cable    1       5 G G 12

 ÍÍÍÍÍÍÍÍÍ ÍÍ ³ ³ ³ ³ ³ ³ ³ ³ ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍÍÍ   ÍÍÍÍÍÍÍÍÍÍÍÍ

              ³ ³ ³ ³ ³ ³ ³ ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄ1

              ³ ³ ³ ³ ³ ³ ³ ³ ÀÄTerminatorÄÙ

              ³ ³ ³ ³ ³ ³ ³ ³

Drive Select->1 2 3 4 ³ ³ ³ À Radial

                ³ ³ ³ ³ ³ ÀÄÄ Reserved

                ³ ÀÂÙ ³ ÀÄÄÄÄ Write Fault

                ³  ³  ÀÄÄÄÄÄÄ Factory Test

                ³  ÀÄÄÄÄÄÄÄÄÄ Never Used (Drive Select 3 and 4)

                À If twisted cable, use Drive Select 2

                              ST - 238R

       UNFORMATTED CAPACITY (MB) ________________38.4

       FORMATTED CAPACITY (26 SECTORS) (MB) _____32.7

       ACTUATOR TYPE ____________________________STEPPER

       TRACKS ___________________________________2,460

       CYLINDERS ________________________________615

       HEADS ____________________________________4

       DISCS ____________________________________2

       MEDIA TYPE _______________________________OXIDE

       RECORDING METHOD _________________________RLL (2,7)

       TRANSFER RATE (mbits/sec) ________________7.5

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.3

       INTERFACE ________________________________ST412

       SECTORS PER DRIVE ________________________63,960

       TPI (TRACKS PER INCH) ____________________588

       BPI (BITS PER INCH) ______________________14,740

       AVERAGE ACCESS (ms) ______________________65

       SINGLE TRACK SEEK (ms) ___________________20

       MAX FULL SEEK (ms) _______________________150

       MTBF (power-on hours) ____________________100,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.4

                           +12V TYPICAL (amps) __0.9

                           +5V TYPICAL (amps) ___0.8

                           TYPICAL (watts) ______14.8

                           MAXIMUM (watts) ______33

       BUFFERED STEP PULSE RATE (micro sec) _____5-200

       WRITE PRECOMP (cyl) ______________________N/A (616)

       REDUCED WRITE CURRENT (cyl) ______________N/A (616)

       LANDING ZONE (cyl)________________________670

       IBM AT DRIVE TYPE ________________________*

 * MAY REQUIRE A CONTROLLER WITH BIOS SUPPORT, OR FORMATTING

   AND PARTITIONING SOFTWARE.  ALSO, CHECK TO SEE IF YOUR CMOS SETUP

   HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE.

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-250R
ST-250R ST412 RLL

                                                          /Ä4Ä3Ä2Ä1Ä\

                                                          ³ O O O O ³ Power

              o o o o o o o o                             ÀÄÄÄÄÄÄÄÄÄÙ

  ÚData Cable o o o o o o o o  ÚController Cable    1       5 G G 12

 ÍÍÍÍÍÍÍÍÍ ÍÍ ³ ³ ³ ³ ³ ³ ³ ³ ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍÍÍ   ÍÍÍÍÍÍÍÍÍÍÍÍ

              ³ ³ ³ ³ ³ ³ ³ ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄ1

              ³ ³ ³ ³ ³ ³ ³ ³ ÀÄTerminatorÄÙ

              ³ ³ ³ ³ ³ ³ ³ ³

Drive Select->1 2 3 4 ³ ³ ³ À Radial

                ³ ³ ³ ³ ³ ÀÄÄ Reserved

                ³ ÀÂÙ ³ ÀÄÄÄÄ Write Fault

                ³  ³  ÀÄÄÄÄÄÄ Factory Test

                ³  ÀÄÄÄÄÄÄÄÄÄ Never Used (Drive Select 3 and 4)

                À If twisted cable, use Drive Select 2

                              ST - 250R

       UNFORMATTED CAPACITY (MB) ________________50.0

       FORMATTED CAPACITY (31 SECTORS) (MB) _____42.3

       ACTUATOR TYPE ____________________________STEPPER

       TRACKS ___________________________________2,668

       CYLINDERS ________________________________667

       HEADS ____________________________________4

       DISCS ____________________________________2

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL

       TRANSFER RATE (mbits/sec) ________________7.5

       SPINDLE SPEED (RPM) ______________________3,000

       INTERFACE ________________________________ST412

       TPI (TRACKS PER INCH) ____________________588

       BPI (BITS PER INCH) ______________________18,897

       AVERAGE ACCESS (ms) ______________________70

       SINGLE TRACK SEEK (ms) ___________________20

       MTBF (power-on hours) ____________________100,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.4

                           +12V TYPICAL (amps) __0.9

                           +5V TYPICAL (amps) ___0.8

                           TYPICAL (watts) ______14.8

                           MAXIMUM (watts) ______33

       BUFFERED STEP PULSE RATE (micro sec) _____5-200

       WRITE PRECOMP (cyl) ______________________N/A (668)

       REDUCED WRITE CURRENT (cyl) ______________N/A (668)

       LANDING ZONE (cyl)________________________670

       IBM AT DRIVE TYPE ________________________N/A*

       *MUST BE USED WITH THE ST11R CONTROLLER OR 16-BIT

        CONTROLLER; MAY REQUIRE PARTITIONING SOFTWARE

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-277R
ST-277R ST412 RLL

                                                          /Ä4Ä3Ä2Ä1Ä\

                                                          ³ O O O O ³ Power

              o o o o o o o o                             ÀÄÄÄÄÄÄÄÄÄÙ

  ÚData Cable o o o o o o o o  ÚController Cable    1       5 G G 12

 ÍÍÍÍÍÍÍÍÍ ÍÍ ³ ³ ³ ³ ³ ³ ³ ³ ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍÍÍ   ÍÍÍÍÍÍÍÍÍÍÍÍ

              ³ ³ ³ ³ ³ ³ ³ ³ 1ÄÄÄÄÄÄÄÄÄÄÄÄ¿

              ³ ³ ³ ³ ³ ³ ³ ³ ÀÄTerminatorÄÙ

              ³ ³ ³ ³ ³ ³ ³ ³

Drive Select->1 2 3 4 ³ ³ ³ À Radial

                ³ ³ ³ ³ ³ ÀÄÄ Reserved

                ³ ÀÂÙ ³ ÀÄÄÄÄ Write Fault

                ³  ³  ÀÄÄÄÄÄÄ Factory Test

                ³  ÀÄÄÄÄÄÄÄÄÄ Never Used (Drive Select 3 and 4)

                À If twisted cable, use Drive Select 2

                          ST - 277R

       UNFORMATTED CAPACITY (MB) ________________76.9

       FORMATTED CAPACITY (26 SECTORS) (MB) _____65.5

       ACTUATOR TYPE ____________________________STEPPER

       TRACKS ___________________________________4,920

       CYLINDERS ________________________________820

       HEADS ____________________________________6

       DISCS ____________________________________3

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       TRANSFER RATE (mbits/sec) ________________7.5

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.3

       INTERFACE ________________________________ST412

       SECTORS PER DRIVE ________________________127,920

       TPI (TRACKS PER INCH) ____________________777

       BPI (BITS PER INCH) ______________________14,902

       AVERAGE ACCESS (ms)*______________________40/28

       SINGLE TRACK SEEK (ms) ___________________8

       MAX FULL SEEK (ms) _______________________ /70

       MTBF (power-on hours) ____________________70,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.0/2.5*

                           +12V TYPICAL (amps) __0.5

                           +5V TYPICAL (amps) ___1.0/1.2*

                           TYPICAL (watts) ______11/12*

                           MAXIMUM (watts) ______29/36*

       BUFFERED STEP PULSE RATE (micro sec) _____3-200

       WRITE PRECOMP (cyl) ______________________N/A (821)

       REDUCED WRITE CURRENT (cyl) ______________N/A (821)

       LANDING ZONE (cyl)________________________AUTO PARK

       IBM AT DRIVE TYPE  _______________________**

       *ST277R-0/ST277R-1

 * MAY REQUIRE A CONTROLLER WITH BIOS SUPPORT, OR FORMATTING

   AND PARTITIONING SOFTWARE.  ALSO, CHECK TO SEE IF YOUR CMOS SETUP

   HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE.

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-278R
ST-278R ST412 RLL

(same as ST-277R with Terminator that cannot be removed, therefore

drive must be installed at the end of the daisychain cable.)

                                                          /Ä4Ä3Ä2Ä1Ä\

                                                          ³ O O O O ³ Power

              o o o o o o o o                             ÀÄÄÄÄÄÄÄÄÄÙ

  ÚData Cable o o o o o o o o  ÚController Cable    1       5 G G 12

 ÍÍÍÍÍÍÍÍÍ ÍÍ ³ ³ ³ ³ ³ ³ ³ ³ ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍÍÍ   ÍÍÍÍÍÍÍÍÍÍÍÍ

              ³ ³ ³ ³ ³ ³ ³ ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄ1

              ³ ³ ³ ³ ³ ³ ³ ³ ÀÄTerminatorÄÙ- cannot be removed

              ³ ³ ³ ³ ³ ³ ³ ³

Drive Select->1 2 3 4 ³ ³ ³ À Radial

                ³ ³ ³ ³ ³ ÀÄÄ Reserved

                ³ ÀÂÙ ³ ÀÄÄÄÄ Write Fault

                ³  ³  ÀÄÄÄÄÄÄ Factory Test

                ³  ÀÄÄÄÄÄÄÄÄÄ Never Used (Drive Select 3 and 4)

                À If twisted cable, use Drive Select 2

                          ST - 278R

       UNFORMATTED CAPACITY (MB) ________________76.9

       FORMATTED CAPACITY (26 SECTORS) (MB) _____65.5

       ACTUATOR TYPE ____________________________STEPPER

       TRACKS ___________________________________4,920

       CYLINDERS ________________________________820

       HEADS ____________________________________6

       DISCS ____________________________________3

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL

       TRANSFER RATE (mbits/sec) ________________7.5

       SPINDLE SPEED (RPM) ______________________3,600

       INTERFACE ________________________________ST412

       TPI (TRACKS PER INCH) ____________________777

       BPI (BITS PER INCH) ______________________14,902

       AVERAGE ACCESS (ms)*______________________40/28

       SINGLE TRACK SEEK (ms) ___________________8

       MTBF (power-on hours) ____________________70,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.0/2.5*

                           +12V TYPICAL (amps) __0.5

                           +5V TYPICAL (amps) ___1.0/1.2*

                           TYPICAL (watts) ______11/12*

                           MAXIMUM (watts) ______29/36*

       BUFFERED STEP PULSE RATE (micro sec) _____3-200

       WRITE PRECOMP (cyl) ______________________N/A (821)

       REDUCED WRITE CURRENT (cyl) ______________N/A (821)

       LANDING ZONE (cyl)________________________AUTO PARK

       IBM AT DRIVE TYPE  _______________________**

       *ST277R-0/ST277R-1

 * MAY REQUIRE A CONTROLLER WITH BIOS SUPPORT, OR FORMATTING

   AND PARTITIONING SOFTWARE.  ALSO, CHECK TO SEE IF YOUR CMOS SETUP

   HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE.

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-279R
ST-279R (94205-77) Wren 2 HH ST412 RLL

     Drive Select                                     ÚÄÄÄÄÄÄÄÄÄ¿

     o o o o o o o           1 Terminator             ³ O O O O ³ Power

     o o o o o o o          ÚÄÄÄÄÄÄÄÄÄÄÄÄ¿            \ÄÄÄÄÄÄÄÄÄ\

     1 2 3 4 R r reserved   ÀÄÄÄÄÄÄÄÄÄÄÄÄÙ             12 G G 5

     ÍÍÍÍÍÍÍÍÍÍ ÍÍ    ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍÍÍ   ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

       ³     ³                ÀÄController Cable

       ³     ÀÄÄRadial

       ÀÄÄÄÄÄÄÄÄIf twisted cable, use Drive Select 2

                              ST-279R

                        94205-77 WREN 2 HH

       UNFORMATTED CAPACITY (MB) ________________77

       FORMATTED CAPACITY (26 SECTORS) (MB) _____65

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________4,945

       CYLINDERS ________________________________989

       HEADS ____________________________________5

       DISCS ____________________________________3

       MEDIA TYPE _______________________________OXIDE

       RECORDING METHOD _________________________RLL

       TRANSFER RATE (mbits/sec) ________________7.5

       SPINDLE SPEED (RPM) ______________________3,600

       INTERFACE ________________________________ST412

       TPI (TRACKS PER INCH) ____________________960

       BPI (BITS PER INCH) ______________________14,302

       AVERAGE ACCESS (ms) ______________________28

       SINGLE TRACK SEEK (ms) ___________________5

       MTBF (power-on hours) ____________________40,000

       POWER REQUIREMENTS: +12V START-UP (amps) _4.5

                           +12V TYPICAL (amps) __1.5

                           +5V START-UP (amps) __1.0

                           +5V TYPICAL (amps) ___0.4

                           TYPICAL (watts) ______20

                           MAXIMUM (watts) ______??

       BUFFERED STEP PULSE RATE (micro sec) _____8-200

       WRITE PRECOMP (cyl) ______________________128

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________*

 * MAY REQUIRE A CONTROLLER WITH BIOS SUPPORT, OR FORMATTING

   AND PARTITIONING SOFTWARE.  ALSO, CHECK TO SEE IF YOUR CMOS SETUP

   HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE.

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-4135R
ST-4135R (94155-135) Wren 2 ST412 RLL

      Drive Sel  ÚÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

      o o o o o  ³   Term     1³

      o o o o o  ³ 14 pin dip  ³                      ÚÄÄÄÄÄÄÄÄÄ¿

                 ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÙ                      ³ O O O O ³ Power

      1 2 3 4 Radial                                  \ÄÄÄÄÄÄÄÄÄ/

                           Command ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿1  12 G G 5

     ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

         Data   ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿1  ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

     ÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍ ÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

                             ST-4135R

                        94155-135 WREN 2 FH

       UNFORMATTED CAPACITY (MB) ________________135

       FORMATTED CAPACITY (26 SECTORS) (MB) _____115

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________8,640

       CYLINDERS ________________________________960

       HEADS ____________________________________9

       DISCS ____________________________________5

       MEDIA TYPE _______________________________OXIDE

       RECORDING METHOD _________________________RLL

       TRANSFER RATE (mbits/sec) ________________7.5

       SPINDLE SPEED (RPM) ______________________3,600

       INTERFACE ________________________________ST412

       TPI (TRACKS PER INCH) ____________________980

       BPI (BITS PER INCH) ______________________13,670

       AVERAGE ACCESS (ms) ______________________28

       SINGLE TRACK SEEK (ms) ___________________5

       MTBF (power-on hours) ____________________40,000

       POWER REQUIREMENTS: +12V START-UP (amps) _4.5

                           +12V TYPICAL (amps) __2.0

                           +5V START-UP (amps) __1.3

                           +5V TYPICAL (amps) ___0.75

                           TYPICAL (watts) ______28

                           MAXIMUM (watts) ______61

       BUFFERED STEP PULSE RATE (micro sec) _____8-200

       WRITE PRECOMP (cyl) ______________________128

       REDUCED WRITE CURRENT (cyl) ______________N/A (961)

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________*

 * MAY REQUIRE A CONTROLLER WITH BIOS SUPPORT, OR FORMATTING

   AND PARTITIONING SOFTWARE.  ALSO, CHECK TO SEE IF YOUR CMOS SETUP

   HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE.

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-4144R
ST-4144R ST412 RLL

                                                          Ú12ÄGÄGÄ5Ä¿

                                                          ³ 0 0 0 0 ³

 ÚData Cable                    ÚController Cable   1     \Ä1Ä2Ä3Ä4Ä/

 ÍÍÍÍÍÍÍÍÍ ÍÍ                 ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ÍÍÍ   ÍÍÍÍÍÍÍÍÍÍÍÍ

              o o o o o o o o       1ÄÄÄÄÄÄÄÄÄÄÄÄ¿

              o o o o o o o o       ÀÄÄÄÄÄÄÄÄÄÄÄÄÙ

Drive Select->1 2 3 4 ³ ³ ³ ³          ÀResistor Termination Pack

                ³ ³ ³ ³ ³ ³ ³

                ³ ÀÂÙ ³ ³ ³ ³

                ³  ³  ³ ³ ³ À Radial

                ³  ³  ³ ³ ÀÄÄ Recovery Mode

                ³  ³  ³ ÀÄÄÄÄ Write Fault

                ³  ³  ÀÄÄÄÄÄÄ Not Connected

                ³  ÀÄÄÄÄÄÄÄÄÄ Never Used (Drive Select 3 and 4)

                À If twisted cable, use Drive Select 2

                              ST - 4144R

       UNFORMATTED CAPACITY (MB) ________________144.0

       FORMATTED CAPACITY (26 SECTORS) (MB) _____122.7

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________9,216

       CYLINDERS ________________________________1,024

       HEADS ____________________________________9

       DISCS ____________________________________5

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       TRANSFER RATE (mbits/sec) ________________7.5

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.3

       INTERFACE ________________________________ST412

       SECTORS PER DRIVE ________________________239,616

       TPI (TRACKS PER INCH) ____________________1,031

       BPI (BITS PER INCH) ______________________14,688

       AVERAGE ACCESS (ms) ______________________28

       SINGLE TRACK SEEK (ms) ___________________6

       MAX FULL SEEK (ms) _______________________55

       MTBF (power-on hours) ____________________40,000

       POWER REQUIREMENTS: +12V START-UP (amps) _4.0

                           +12V TYPICAL (amps) __1.3

                           +5V TYPICAL (amps) ___1.3

                           TYPICAL (watts) ______23

                           MAXIMUM (watts) ______55

       BUFFERED STEP PULSE RATE (micro sec) _____3-70

       WRITE PRECOMP (cyl) ______________________N/A (1025)

       REDUCED WRITE CURRENT (cyl) ______________N/A (1025)

       LANDING ZONE (cyl)________________________AUTO PARK

       IBM AT DRIVE TYPE ________________________*

 * MAY REQUIRE A CONTROLLER WITH BIOS SUPPORT, OR FORMATTING

   AND PARTITIONING SOFTWARE.  ALSO, CHECK TO SEE IF YOUR CMOS SETUP

   HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE.

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-1090N
ST-1090N (94351-090) Swift SCSI

     ÚÄÄÄ\

     ³ 0 ³  5

     ³ 0 ³  G

     ³ 0 ³  G

     ³ 0 ³ 12  ....................  o o o o o o

     ÀÄÄÄ/     1...................  o o o o o o

     ÍÍÍÍÑÍÍÍÍÍÍÑÍÑÍÍÍÍÍÍÑÍÑÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

         1ÄÄÄÄÄÄÙ 1ÄÄÄÄÄÄÙ 1ÄÄÄÄÄÄÙ  1 2 4 ³ ³ ³

           Terminator Resistors      ÄÄÂÄÄ ³ ³ ³

                                       ³   ³ ³ ³   Terminator Power Select

            Drive ID, binary - use ÅÄÄÄÙ   ³ ³ ³   Header located on the side

             ID 0 (no jumpers) for ³       ³ ³ ³   ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ

              single drive install Ù       ³ ³ ³  (Back) A B (Front of drive)

            Enable Parity Checking ÄÄÄÄÄÄÄÄÙ ³ ³         C D

         Enable Motor Start Option ÄÄÄÄÄÄÄÄÄÄÙ ³      ÍÍÑÍÍÍÍÍÍÍÍÍÍPÍWÍA

              Synchronized Spindle ÄÄÄÄÄÄÄÄÄÄÄÄÙ        ³

                                                        ³

              ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

             ÄÅÄ

             A-B      Drive from Power Connector (factory default)

             A-C      Drive from SCSI Bus

             A-C&B-D  Drive from Power Connector and Provide to SCSI Bus

             B-D      Only provide to SCSI Bus

                             ST-1090N

                          94351-90 Swift

       UNFORMATTED CAPACITY (MB) ________________90

       FORMATTED CAPACITY (29 SECTORS) (MB) _____79

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________7,476

       CYLINDERS ________________________________1,068

       HEADS ____________________________________5

       DISCS ____________________________________3

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL

       TRANSFER RATE (mbytes/sec) _______________1

       SPINDLE SPEED (RPM) ______________________3,600

       BUFFER ___________________________________32 or 64 Kbyte

         Read Look-Ahead, Non-Adaptive,

         Single-Segmented

       INTERFACE ________________________________SCSI

       TPI (TRACKS PER INCH) ____________________1,350

       BPI (BITS PER INCH) ______________________22,840

       AVERAGE ACCESS (ms) ______________________15

       SINGLE TRACK SEEK (ms) ___________________4

       MTBF (power-on hours) ____________________70,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.5

                           +12V TYPICAL (amps) __0.7

                           +5V START-UP (amps) __0.75

                           +5V TYPICAL (amps) ___0.4

                           TYPICAL (watts) ______11

                           MAXIMUM (watts) ______33.75

       BUFFERED STEP PULSE RATE (micro sec) _____6-200

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

Already low-level formatted at the factory.

                          Swift Remote LED Option

               Front View of Drive Without the Plastic Bezel

                                  ÚÄÄÄÂÄÄÄ¿

                                  ³ A ³ B ³    B = Anode

                                  ÃÄÄÄÅÄÄÄ´    D = Cathode

                                  ³ C ³ D ³

              ...ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÏÍÍÍÏÍÍÍÍÍPÍWÍAÍÍÍ...

        ø Default jumper at C-D for LED mounted on drive PWA

        ø To use remote LED, remove jumper and extend B (Anode)

          and D (Cathode).

        ø Swift LED kit 75912397 allows connection to a remote LED

        ø Swift LED kit 95913369 has an LED for attachment to the

          system front bezel or a 5.25-inch frame kit

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-1096N
ST-1096N SCSI

                                                 /ÄÄÄ¿

                                                 ³ O ³12

                                                 ³ O ³G

                                                 ³ O ³G

          o o o o o                              ³ O ³5

          o o o o o                              \ÄÄÄÙ

        ÍÍÑÍÑÍÑÍÑÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

          1 2 4 ³ P   ........................1

          ÀÄÅÄÙ ³ ³  À.........................Ù

            ³   ³ ³ ÚÄÄÄÄÄÄ1ÚÄÄÄÄÄÄ1ÚÄÄÄÄÄÄ1

            ³   ³ ³ ÀÄÄÄÄÄÄÙÀÄÄÄÄÄÄÙÀÄÄÄÄÄÄÙ

            ³   ³ ³    À Resistor Termination Packs

            ³   ³ ³

            ³   ³ ÀÄ Parity Check enable

            ³   ÀÄÄÄ Not Used

            ÀÄÄÄÄÄÄÄ Drive ID's, ID 0 (none) for single drive system

                              ST - 1096N

       UNFORMATTED CAPACITY (MB) ________________N/A

       FORMATTED CAPACITY (26 SECTORS) (MB) _____83.9

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________6,342

       CYLINDERS ________________________________906

       HEADS ____________________________________7

       DISCS ____________________________________4

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       TRANSFER RATE (mbits/sec) ________________7.5

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.3

       BUFFER ___________________________________2 Kbyte SeaCache

       INTERFACE ________________________________SCSI

       SECTORS PER DRIVE ________________________163,986

       TPI (TRACKS PER INCH) ____________________1,300

       BPI (BITS PER INCH) ______________________19,893

       AVERAGE ACCESS (ms) ______________________20

       SINGLE TRACK SEEK (ms) ___________________8

       MAX FULL SEEK (ms) _______________________44

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.0

                           +12V TYPICAL (amps) __0.5

                           +5V TYPICAL (amps) ___0.6

                           TYPICAL (watts) ______9

                           MAXIMUM (watts) ______33.75

       BUFFERED STEP PULSE RATE (micro sec) _____3-200

       WRITE PRECOMP (cyl) ______________________N/A (907)

       REDUCED WRITE CURRENT (cyl) ______________N/A (907)

       LANDING ZONE (cyl)________________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-1111N
ST-1111N (94351-111) Swift SCSI

     ÚÄÄÄ\

     ³ 0 ³  5

     ³ 0 ³  G

     ³ 0 ³  G

     ³ 0 ³ 12  ....................  o o o o o o

     ÀÄÄÄ/     1...................  o o o o o o

     ÍÍÍÍÑÍÍÍÍÍÍÑÍÑÍÍÍÍÍÍÑÍÑÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

         1ÄÄÄÄÄÄÙ 1ÄÄÄÄÄÄÙ 1ÄÄÄÄÄÄÙ  1 2 4 ³ ³ ³

           Terminator Resistors      ÄÄÂÄÄ ³ ³ ³

                                       ³   ³ ³ ³   Terminator Power Select

            Drive ID, binary - use ÅÄÄÄÙ   ³ ³ ³   Header located on the side

             ID 0 (no jumpers) for ³       ³ ³ ³   ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ

              single drive install Ù       ³ ³ ³  (Back) A B (Front of drive)

            Enable Parity Checking ÄÄÄÄÄÄÄÄÙ ³ ³         C D

         Enable Motor Start Option ÄÄÄÄÄÄÄÄÄÄÙ ³      ÍÍÑÍÍÍÍÍÍÍÍÍÍPÍWÍA

              Synchronized Spindle ÄÄÄÄÄÄÄÄÄÄÄÄÙ        ³

                                                        ³

              ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

             ÄÅÄ

             A-B      Drive from Power Connector (factory default)

             A-C      Drive from SCSI Bus

             A-C&B-D  Drive from Power Connector and Provide to SCSI Bus

             B-D      Only provide to SCSI Bus

                             ST-1111N

                          94351-111 Swift

       UNFORMATTED CAPACITY (MB) ________________111

       FORMATTED CAPACITY (36 SECTORS) (MB) _____98

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________5,340

       CYLINDERS ________________________________1,068

       HEADS ____________________________________5

       DISCS ____________________________________3

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL

       TRANSFER RATE (mbytes/sec) _______________1.25

       SPINDLE SPEED (RPM) ______________________3,600

       BUFFER ___________________________________32 or 64 Kbyte

         Read Look-Ahead, Non-Adaptive,

         Single-Segmented

       INTERFACE ________________________________SCSI

       TPI (TRACKS PER INCH) ____________________1,350

       BPI (BITS PER INCH) ______________________28,282

       AVERAGE ACCESS (ms) ______________________15

       SINGLE TRACK SEEK (ms) ___________________4

       MTBF (power-on hours) ____________________70,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.5

                           +12V TYPICAL (amps) __0.7

                           +5V START-UP (amps) __0.75

                           +5V TYPICAL (amps) ___0.4

                           TYPICAL (watts) ______11

                           MAXIMUM (watts) ______33.75

       BUFFERED STEP PULSE RATE (micro sec) _____6-200

       WRITE PRECOMP (cyl) ______________________N/A (1069)

       REDUCED WRITE CURRENT (cyl) ______________N/A (1069)

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

Already low-level formatted at the factory.

                          Swift Remote LED Option

               Front View of Drive Without the Plastic Bezel

                                  ÚÄÄÄÂÄÄÄ¿

                                  ³ A ³ B ³    B = Anode

                                  ÃÄÄÄÅÄÄÄ´    D = Cathode

                                  ³ C ³ D ³

              ...ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÏÍÍÍÏÍÍÍÍÍPÍWÍAÍÍÍ...

        ø Default jumper at C-D for LED mounted on drive PWA

        ø To use remote LED, remove jumper and extend B (Anode)

          and D (Cathode).

        ø Swift LED kit 75912397 allows connection to a remote LED

        ø Swift LED kit 95913369 has an LED for attachment to the

          system front bezel or a 5.25-inch frame kit

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-11200N
ST-11200N SCSI-2 Fast (Hawk 1)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

         50 pin I/O Cable Connection

         ³

    J1ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ1¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     Íµ:::::::::::::::::::::::::ÆÍ³ 0 0 0 0 ³ÍÍ

      ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

       1ÄÄÄÄÄÄ¿ 1ÄÄÄÄÄÄ¿ 1ÄÄÄÄÄÄ¿

       ÀÄÄÄÄÄÄÙ ÀÄÄÄÂÄÄÙ ÀÄÄÄÄÄÄÙ

        ÀTerminating ResistorsÙ

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º RIGHT SIDE VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Reserved

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)

  ³      Factory Use ÄÄÙ³³ÀÄÄ Motor Start

  ³    Parity Enable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍÍ          ³

    ³                                              ³

    ³  1 2     1 2      1 2                        ³

    ³ ÖÄ·       ÖÄ·    ÖÄÄÄ·  A Drive Supplies Bus ³

    ³ ºøºø     øºøº    ÓøÄø½  B Drive Supplies Own ³

    ³ Óø½ø     øÓø½     ø ø   C Bus Supplies Drive ³

    ³   A       B        C                         ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º LEFT SIDE VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼             If these ID jumpers are used,

                                 then ID jumpers shown in front

                                 view ARE NOT USED.

  FRONT                TOP (HDA)                 J5 ÕÍÍ1¸ ÕÍ¸BACK

   OF   ÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ:::ÆÍµJ1 OF

  DRIVE                BOTTOM                       ÔÍÍÍ¾ ÔÍ¾DRIVE

                                                     ³³³

                   Note:  On early drives  ³   ID 1 ÄÙ³ÀÄ ID 4

                   with PCB# 75782395 or   ³        ID 2

                   #75782485 ID jumpers areÃÄÄ ID 4       ID 1

                   reversed.               ³

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                      TOP (HDA)   J6  ÕÍÍÍÍÍ1¸

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::::ÆÍ

                 *    BOTTOM          ÔÍÍÍÍÍÍ¾

                 ³                     123456

            LED ÄÙ                     ³³³³³³

                                  ID 4 Ù³³³³À Reserved

                                  ID 2 ÄÙ³³ÀÄ Remote LED (pin-3 +5v)

                                  ID 1 ÄÄÙÀÄÄ Spindle Synchronization

                                               (pin-6 REF SIG+)

      If these ID jumper are used, then

         ID jumpers shown in left side

         view ARE NOT USED.

                              ST - 11200N

                              Hawk 1

       UNFORMATTED CAPACITY (MB) ________________1,248

       FORMATTED CAPACITY (xx SECTORS) (MB) _____1,054

       AVERAGE SECTORS PER TRACK ________________73

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________28,080

       CYLINDERS ________________________________1,872 (user)

       HEADS ____________________________________15

       DISCS (3.5 in) ___________________________8

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______23.2 to 40.6

       EXTERNAL TRANSFER RATE (mbyte/sec) _______4 Async

       EXTERNAL TRANSFER RATE (mbyte/sec) _______10 Sync

       SPINDLE SPEED (RPM) ______________________5,411

       AVERAGE LATENCY (mSEC) ___________________5.4

       BUFFER ___________________________________256 Kbyte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 Fast

       BYTES PER TRACK __________________________41,660 avg.

       SECTORS PER DRIVE ________________________2,059,139

       TPI (TRACKS PER INCH) ____________________2,150

       AVERAGE ACCESS (ms) (read/write)__________10.5/11.2

         Drive level without controller overhead

       SINGLE TRACK SEEK (ms) ___________________1.5/2.0

       MAX FULL SEEK (ms) _______________________20.0/21.0

       MTBF (power-on hours) ____________________200,000

       SHOCK (G's):

                operating (Read/Write) __________10

                nonoperating ____________________60

       ACOUSTICS (typ/max dBA) __________________/

       POWER REQUIREMENTS: +12V START-UP (amps) _2.0

                           +12V TYPICAL (amps) __0.5

                           +5V TYPICAL (amps) ___0.4

                           TYPICAL (watts) ______11

                           IDLE (watts) _________9

       LANDING ZONE (cyl)________________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

Already low-level formatted at the factory.

ZBR = Zone Bit Recording = Variable sectors per track

Formatted at the factory with 12 spare sectors per cylinder

 and two spare cylinders at inner tracks per unit.

Seagate reserves the right to change, without notice, product

offerings or specifications. (08/09/94)


ST-11201N
ST-11201N SCSI-2 Fast Wide

                              ST - 11201N

       UNFORMATTED CAPACITY (MB) ________________1,248

       FORMATTED CAPACITY (xx SECTORS) (MB) _____1,054

       AVERAGE SECTORS PER TRACK ________________73

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________28,080

       CYLINDERS ________________________________1,872 (user)

       HEADS ____________________________________15

       DISCS (3.5 in) ___________________________8

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______22 to 40

       EXTERNAL TRANSFER RATE (mbyte/sec) _______4 Async

       EXTERNAL TRANSFER RATE (mbyte/sec) _______10 Sync

       SPINDLE SPEED (RPM) ______________________5,411

       AVERAGE LATENCY (mSEC) ___________________5.4

       BUFFER ___________________________________240 Kbyte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 Fast Wide

       BYTES PER TRACK __________________________41,660 avg.

       SECTORS PER DRIVE ________________________2,059,139

       TPI (TRACKS PER INCH) ____________________2,150

       AVERAGE ACCESS (ms) (read/write)__________10.5/12.0 *

       SINGLE TRACK SEEK (ms) ___________________2.6 *

       MAX FULL SEEK (ms) _______________________26.6 *

       MTBF (power-on hours) ____________________200,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.0

                           +12V TYPICAL (amps) __0.5

                           +5V TYPICAL (amps) ___0.4

                           TYPICAL (watts) ______11

                           IDLE (watts) _________9

       LANDING ZONE (cyl)________________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

* Including on-board controller overhead (0.6ms less

  without overhead).

Already low-level formatted at the factory.

ZBR = Zone Bit Recording = Variable sectors per track

Formatted at the factory with 12 spare sectors per cylinder

 and two spare cylinders at inner tracks per unit.

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/22/92)


ST-1126N
ST-1126N (94351-126) Swift SCSI

     ÚÄÄÄ\

     ³ 0 ³  5

     ³ 0 ³  G

     ³ 0 ³  G

     ³ 0 ³ 12  ....................  o o o o o o

     ÀÄÄÄ/     1...................  o o o o o o

     ÍÍÍÍÑÍÍÍÍÍÍÑÍÑÍÍÍÍÍÍÑÍÑÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

         1ÄÄÄÄÄÄÙ 1ÄÄÄÄÄÄÙ 1ÄÄÄÄÄÄÙ  1 2 4 ³ ³ ³

           Terminator Resistors      ÄÄÂÄÄ ³ ³ ³

                                       ³   ³ ³ ³   Terminator Power Select

            Drive ID, binary - use ÅÄÄÄÙ   ³ ³ ³   Header located on the side

             ID 0 (no jumpers) for ³       ³ ³ ³   ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ

              single drive install Ù       ³ ³ ³  (Back) A B (Front of drive)

            Enable Parity Checking ÄÄÄÄÄÄÄÄÙ ³ ³         C D

         Enable Motor Start Option ÄÄÄÄÄÄÄÄÄÄÙ ³      ÍÍÑÍÍÍÍÍÍÍÍÍÍPÍWÍA

              Synchronized Spindle ÄÄÄÄÄÄÄÄÄÄÄÄÙ        ³

                                                        ³

              ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

             ÄÅÄ

             A-B      Drive from Power Connector (factory default)

             A-C      Drive from SCSI Bus

             A-C&B-D  Drive from Power Connector and Provide to SCSI Bus

             B-D      Only provide to SCSI Bus

                 Swift with Shrouded SCSI Connector

     ÚÄÄÄ\

     ³ 0 ³  5    ÚÄ If the SCSI connector has a plastic shroud,

     ³ 0 ³  G    ³   note pin-1 on cable and T-res.

     ³ 0 ³  G    ³

     ³ 0 ³ 12 ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ» o o o o o o

     ÀÄÄÄ/    º:::::::::::::::::::1º o o o o o o

     ÍÍÍÍÑÍÍÍÍÍÍÑÍÑÍÍÍÍÍÍÑÍÑÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

         ÀÄÄÄÄÄÄ1 ÀÄÄÄÄÄÄ1 ÀÄÄÄÄÄÄ1  1 2 4 ³ ³ ³

           Terminator Resistors      ÄÄÂÄÄ ³ ³ ³

                                       ³   ³ ³ ³   Terminator Power Select

            Drive ID, binary - use ÅÄÄÄÙ   ³ ³ ³   Header located on the side

             ID 0 (no jumpers) for ³       ³ ³ ³  ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ

              single drive install Ù       ³ ³ ³  (Back) A B (Front of drive)

            Enable Parity Checking ÄÄÄÄÄÄÄÄÙ ³ ³         C D

         Enable Motor Start Option ÄÄÄÄÄÄÄÄÄÄÙ ³      ÍÍÑÍÍÍÍÍÍÍÍÍÍPÍWÍA

              Synchronized Spindle ÄÄÄÄÄÄÄÄÄÄÄÄÙ        ³

                                                        ³

              ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

             ÄÅÄ

             A-B      Drive from Power Connector (factory default)

             A-C      Drive from SCSI Bus

             A-C&B-D  Drive from Power Connector and Provide to SCSI Bus

             B-D      Only provide to SCSI Bus

                             ST-1126N

                          94351-126 Swift

       UNFORMATTED CAPACITY (MB) ________________126

       FORMATTED CAPACITY (29 SECTORS/1 SPARED)__107.0

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________7,476

       CYLINDERS ________________________________1,068

       HEADS ____________________________________7

       DISCS ____________________________________4

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL

       TRANSFER RATE (mbytes/sec) _______________1

       SPINDLE SPEED (RPM) ______________________3,600

       BUFFER ___________________________________32 or 64 Kbyte

         Read Look-Ahead, Non-Adaptive,

         Single-Segmented

       INTERFACE ________________________________SCSI

       TPI (TRACKS PER INCH) ____________________1,350

       BPI (BITS PER INCH) ______________________22,840

       AVERAGE ACCESS (ms) ______________________15

       SINGLE TRACK SEEK (ms) ___________________4

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.5

                           +12V TYPICAL (amps) __0.7

                           +5V START-UP (amps) __0.75

                           +5V TYPICAL (amps) ___0.4

                           TYPICAL (watts) ______11

                           MAXIMUM (watts) ______34

       BUFFERED STEP PULSE RATE (micro sec) _____6-200

       WRITE PRECOMP (cyl) ______________________N/A (1069)

       REDUCED WRITE CURRENT (cyl) ______________N/A (1069)

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

Already low-level formatted at the factory.

                          Swift Remote LED Option

               Front View of Drive Without the Plastic Bezel

                                  ÚÄÄÄÂÄÄÄ¿

                                  ³ A ³ B ³    B = Anode

                                  ÃÄÄÄÅÄÄÄ´    D = Cathode

                                  ³ C ³ D ³

              ...ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÏÍÍÍÏÍÍÍÍÍPÍWÍAÍÍÍ...

        ø Default jumper at C-D for LED mounted on drive PWA

        ø To use remote LED, remove jumper and extend B (Anode)

          and D (Cathode).

        ø Swift LED kit 75912397 allows connection to a remote LED

        ø Swift LED kit 95913369 has an LED for attachment to the

          system front bezel or a 5.25-inch frame kit

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-1133NS
ST-1133NS (94351-133S) Swift SCSI

     ÚÄÄÄ\

     ³ 0 ³  5

     ³ 0 ³  G

     ³ 0 ³  G

     ³ 0 ³ 12  ....................  o o o o o o

     ÀÄÄÄ/     1...................  o o o o o o

     ÍÍÍÍÑÍÍÍÍÍÍÑÍÑÍÍÍÍÍÍÑÍÑÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

         1ÄÄÄÄÄÄÙ 1ÄÄÄÄÄÄÙ 1ÄÄÄÄÄÄÙ  1 2 4 ³ ³ ³

           Terminator Resistors      ÄÄÂÄÄ ³ ³ ³

                                       ³   ³ ³ ³   Terminator Power Select

            Drive ID, binary - use ÅÄÄÄÙ   ³ ³ ³   Header located on the side

             ID 0 (no jumpers) for ³       ³ ³ ³   ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ

              single drive install Ù       ³ ³ ³  (Back) A B (Front of drive)

            Enable Parity Checking ÄÄÄÄÄÄÄÄÙ ³ ³         C D

         Enable Motor Start Option ÄÄÄÄÄÄÄÄÄÄÙ ³      ÍÍÑÍÍÍÍÍÍÍÍÍÍPÍWÍA

              Synchronized Spindle ÄÄÄÄÄÄÄÄÄÄÄÄÙ        ³

                                                        ³

              ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

             ÄÅÄ

             A-B      Drive from Power Connector (factory default)

             A-C      Drive from SCSI Bus

             A-C&B-D  Drive from Power Connector and Provide to SCSI Bus

             B-D      Only provide to SCSI Bus

                 Swift with Shrouded SCSI Connector

     ÚÄÄÄ\

     ³ 0 ³  5    ÚÄ If the SCSI connector has a plastic shroud,

     ³ 0 ³  G    ³   note pin-1 on cable and T-res.

     ³ 0 ³  G    ³

     ³ 0 ³ 12 ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ» o o o o o o

     ÀÄÄÄ/    º:::::::::::::::::::1º o o o o o o

     ÍÍÍÍÑÍÍÍÍÍÍÑÍÑÍÍÍÍÍÍÑÍÑÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

         ÀÄÄÄÄÄÄ1 ÀÄÄÄÄÄÄ1 ÀÄÄÄÄÄÄ1  1 2 4 ³ ³ ³

           Terminator Resistors      ÄÄÂÄÄ ³ ³ ³

                                       ³   ³ ³ ³   Terminator Power Select

            Drive ID, binary - use ÅÄÄÄÙ   ³ ³ ³   Header located on the side

             ID 0 (no jumpers) for ³       ³ ³ ³  ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ

              single drive install Ù       ³ ³ ³  (Back) A B (Front of drive)

            Enable Parity Checking ÄÄÄÄÄÄÄÄÙ ³ ³         C D

         Enable Motor Start Option ÄÄÄÄÄÄÄÄÄÄÙ ³      ÍÍÑÍÍÍÍÍÍÍÍÍÍPÍWÍA

              Synchronized Spindle ÄÄÄÄÄÄÄÄÄÄÄÄÙ        ³

                                                        ³

              ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

             ÄÅÄ

             A-B      Drive from Power Connector (factory default)

             A-C      Drive from SCSI Bus

             A-C&B-D  Drive from Power Connector and Provide to SCSI Bus

             B-D      Only provide to SCSI Bus

                             ST-1133NS

                          94351-133S Swift

       UNFORMATTED CAPACITY (MB) ________________133

       FORMATTED CAPACITY (36 SECTORS/1 SPARED)__113.4

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________6,340

       CYLINDERS ________________________________1,268

       HEADS ____________________________________5

       DISCS ____________________________________3

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL

       TRANSFER RATE (mbytes/sec) _______________1.25

       SPINDLE SPEED (RPM) ______________________3,600

       BUFFER ___________________________________32 or 64 Kbyte

         Read Look-Ahead, Non-Adaptive,

         Single-Segmented

       INTERFACE ________________________________SCSI

       TPI (TRACKS PER INCH) ____________________1,543

       BPI (BITS PER INCH) ______________________30,000 max

       AVERAGE ACCESS (ms) ______________________15

       SINGLE TRACK SEEK (ms) ___________________4

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.5

                           +12V TYPICAL (amps) __0.7

                           +5V START-UP (amps) __0.75

                           +5V TYPICAL (amps) ___0.4

                           TYPICAL (watts) ______11

                           MAXIMUM (watts) ______34

       BUFFERED STEP PULSE RATE (micro sec) _____6-200

       WRITE PRECOMP (cyl) ______________________N/A (1269)

       REDUCED WRITE CURRENT (cyl) ______________N/A (1269)

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

Already low-level formatted at the factory.

                          Swift Remote LED Option

               Front View of Drive Without the Plastic Bezel

                                  ÚÄÄÄÂÄÄÄ¿

                                  ³ A ³ B ³    B = Anode

                                  ÃÄÄÄÅÄÄÄ´    D = Cathode

                                  ³ C ³ D ³

              ...ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÏÍÍÍÏÍÍÍÍÍPÍWÍAÍÍÍ...

        ø Default jumper at C-D for LED mounted on drive PWA

        ø To use remote LED, remove jumper and extend B (Anode)

          and D (Cathode).

        ø Swift LED kit 75912397 allows connection to a remote LED

        ø Swift LED kit 95913369 has an LED for attachment to the

          system front bezel or a 5.25-inch frame kit

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-1156N
ST-1156N (94351-155) Swift SCSI

     ÚÄÄÄ\

     ³ 0 ³  5

     ³ 0 ³  G

     ³ 0 ³  G

     ³ 0 ³ 12  ....................  o o o o o o

     ÀÄÄÄ/     1...................  o o o o o o

     ÍÍÍÍÑÍÍÍÍÍÍÑÍÑÍÍÍÍÍÍÑÍÑÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

         1ÄÄÄÄÄÄÙ 1ÄÄÄÄÄÄÙ 1ÄÄÄÄÄÄÙ  1 2 4 ³ ³ ³

           Terminator Resistors      ÄÄÂÄÄ ³ ³ ³

                                       ³   ³ ³ ³   Terminator Power Select

            Drive ID, binary - use ÅÄÄÄÙ   ³ ³ ³   Header located on the side

             ID 0 (no jumpers) for ³       ³ ³ ³   ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ

              single drive install Ù       ³ ³ ³  (Back) A B (Front of drive)

            Enable Parity Checking ÄÄÄÄÄÄÄÄÙ ³ ³         C D

         Enable Motor Start Option ÄÄÄÄÄÄÄÄÄÄÙ ³      ÍÍÑÍÍÍÍÍÍÍÍÍÍPÍWÍA

              Synchronized Spindle ÄÄÄÄÄÄÄÄÄÄÄÄÙ        ³

                                                        ³

              ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

             ÄÅÄ

             A-B      Drive from Power Connector (factory default)

             A-C      Drive from SCSI Bus

             A-C&B-D  Drive from Power Connector and Provide to SCSI Bus

             B-D      Only provide to SCSI Bus

                             ST-1156N

                         94351-155 Swift

       UNFORMATTED CAPACITY (MB) ________________156

       FORMATTED CAPACITY (36 SECTORS) (MB) _____138

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________7,476

       CYLINDERS ________________________________1,068

       HEADS ____________________________________7

       DISCS ____________________________________4

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL

       TRANSFER RATE (mbytes/sec) _______________1.25

       SPINDLE SPEED (RPM) ______________________3,600

       BUFFER ___________________________________32 or 64 Kbyte

         Read Look-Ahead, Non-Adaptive,

         Single-Segmented

       INTERFACE ________________________________SCSI

       TPI (TRACKS PER INCH) ____________________1,350

       BPI (BITS PER INCH) ______________________28,282

       AVERAGE ACCESS (ms) ______________________15

       SINGLE TRACK SEEK (ms) ___________________4

       MTBF (power-on hours) ____________________70,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.5

                           +12V TYPICAL (amps) __0.7

                           +5V START-UP (amps) __0.75

                           +5V TYPICAL (amps) ___0.4

                           TYPICAL (watts) ______11

                           MAXIMUM (watts) ______34

       BUFFERED STEP PULSE RATE (micro sec) _____6-200

       WRITE PRECOMP (cyl) ______________________N/A (1069)

       REDUCED WRITE CURRENT (cyl) ______________N/A (1069)

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

Already low-level formatted at the factory.

                          Swift Remote LED Option

               Front View of Drive Without the Plastic Bezel

                                  ÚÄÄÄÂÄÄÄ¿

                                  ³ A ³ B ³    B = Anode

                                  ÃÄÄÄÅÄÄÄ´    D = Cathode

                                  ³ C ³ D ³

              ...ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÏÍÍÍÏÍÍÍÍÍPÍWÍAÍÍÍ...

        ø Default jumper at C-D for LED mounted on drive PWA

        ø To use remote LED, remove jumper and extend B (Anode)

          and D (Cathode).

        ø Swift LED kit 75912397 allows connection to a remote LED

        ø Swift LED kit 95913369 has an LED for attachment to the

          system front bezel or a 5.25-inch frame kit

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-1162N
ST-1162N (94351-160) Swift SCSI

     ÚÄÄÄ\

     ³ 0 ³  5

     ³ 0 ³  G

     ³ 0 ³  G

     ³ 0 ³ 12  ....................  o o o o o o

     ÀÄÄÄ/     1...................  o o o o o o

     ÍÍÍÍÑÍÍÍÍÍÍÑÍÑÍÍÍÍÍÍÑÍÑÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

         1ÄÄÄÄÄÄÙ 1ÄÄÄÄÄÄÙ 1ÄÄÄÄÄÄÙ  1 2 4 ³ ³ ³

           Terminator Resistors      ÄÄÂÄÄ ³ ³ ³

                                       ³   ³ ³ ³   Terminator Power Select

            Drive ID, binary - use ÅÄÄÄÙ   ³ ³ ³   Header located on the side

             ID 0 (no jumpers) for ³       ³ ³ ³   ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ

              single drive install Ù       ³ ³ ³  (Back) A B (Front of drive)

            Enable Parity Checking ÄÄÄÄÄÄÄÄÙ ³ ³         C D

         Enable Motor Start Option ÄÄÄÄÄÄÄÄÄÄÙ ³      ÍÍÑÍÍÍÍÍÍÍÍÍÍPÍWÍA

              Synchronized Spindle ÄÄÄÄÄÄÄÄÄÄÄÄÙ        ³

                                                        ³

              ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

             ÄÅÄ

             A-B      Drive from Power Connector (factory default)

             A-C      Drive from SCSI Bus

             A-C&B-D  Drive from Power Connector and Provide to SCSI Bus

             B-D      Only provide to SCSI Bus

                 Swift with Shrouded SCSI Connector

     ÚÄÄÄ\

     ³ 0 ³  5    ÚÄ If the SCSI connector has a plastic shroud,

     ³ 0 ³  G    ³   note pin-1 on cable and T-res.

     ³ 0 ³  G    ³

     ³ 0 ³ 12 ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ» o o o o o o

     ÀÄÄÄ/    º:::::::::::::::::::1º o o o o o o

     ÍÍÍÍÑÍÍÍÍÍÍÑÍÑÍÍÍÍÍÍÑÍÑÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

         ÀÄÄÄÄÄÄ1 ÀÄÄÄÄÄÄ1 ÀÄÄÄÄÄÄ1  1 2 4 ³ ³ ³

           Terminator Resistors      ÄÄÂÄÄ ³ ³ ³

                                       ³   ³ ³ ³   Terminator Power Select

            Drive ID, binary - use ÅÄÄÄÙ   ³ ³ ³   Header located on the side

             ID 0 (no jumpers) for ³       ³ ³ ³  ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ

              single drive install Ù       ³ ³ ³  (Back) A B (Front of drive)

            Enable Parity Checking ÄÄÄÄÄÄÄÄÙ ³ ³         C D

         Enable Motor Start Option ÄÄÄÄÄÄÄÄÄÄÙ ³      ÍÍÑÍÍÍÍÍÍÍÍÍÍPÍWÍA

              Synchronized Spindle ÄÄÄÄÄÄÄÄÄÄÄÄÙ        ³

                                                        ³

              ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

             ÄÅÄ

             A-B      Drive from Power Connector (factory default)

             A-C      Drive from SCSI Bus

             A-C&B-D  Drive from Power Connector and Provide to SCSI Bus

             B-D      Only provide to SCSI Bus

                             ST-1162N

                         94351-160 Swift

       UNFORMATTED CAPACITY (MB) ________________162

       FORMATTED CAPACITY (29 SECTORS/1 SPARED)__137.5

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________9,612

       CYLINDERS ________________________________1,068

       HEADS ____________________________________9

       DISCS ____________________________________5

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL

       TRANSFER RATE (mbytes/sec) _______________1

       SPINDLE SPEED (RPM) ______________________3,600

       BUFFER ___________________________________32 or 64 Kbyte

         Read Look-Ahead, Non-Adaptive,

         Single-Segmented

       INTERFACE ________________________________SCSI

       TPI (TRACKS PER INCH) ____________________1,350

       BPI (BITS PER INCH) ______________________22,840

       AVERAGE ACCESS (ms) ______________________15

       SINGLE TRACK SEEK (ms) ___________________4

       MTBF (power-on hours) ____________________70,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.5

                           +12V TYPICAL (amps) __0.7

                           +5V START-UP (amps) __0.75

                           +5V TYPICAL (amps) ___0.4

                           TYPICAL (watts) ______11

                           MAXIMUM (watts) ______34

       BUFFERED STEP PULSE RATE (micro sec) _____6-200

       WRITE PRECOMP (cyl) ______________________N/A (1069)

       REDUCED WRITE CURRENT (cyl) ______________N/A (1069)

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

Already low-level formatted at the factory.

                          Swift Remote LED Option

               Front View of Drive Without the Plastic Bezel

                                  ÚÄÄÄÂÄÄÄ¿

                                  ³ A ³ B ³    B = Anode

                                  ÃÄÄÄÅÄÄÄ´    D = Cathode

                                  ³ C ³ D ³

              ...ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÏÍÍÍÏÍÍÍÍÍPÍWÍAÍÍÍ...

        ø Default jumper at C-D for LED mounted on drive PWA

        ø To use remote LED, remove jumper and extend B (Anode)

          and D (Cathode).

        ø Swift LED kit 75912397 allows connection to a remote LED

        ø Swift LED kit 95913369 has an LED for attachment to the

          system front bezel or a 5.25-inch frame kit

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-1186NS
ST-1186NS (94351-186S) Swift SCSI

     ÚÄÄÄ\

     ³ 0 ³  5

     ³ 0 ³  G

     ³ 0 ³  G

     ³ 0 ³ 12  ....................  o o o o o o

     ÀÄÄÄ/     1...................  o o o o o o

     ÍÍÍÍÑÍÍÍÍÍÍÑÍÑÍÍÍÍÍÍÑÍÑÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

         1ÄÄÄÄÄÄÙ 1ÄÄÄÄÄÄÙ 1ÄÄÄÄÄÄÙ  1 2 4 ³ ³ ³

           Terminator Resistors      ÄÄÂÄÄ ³ ³ ³

                                       ³   ³ ³ ³   Terminator Power Select

            Drive ID, binary - use ÅÄÄÄÙ   ³ ³ ³   Header located on the side

             ID 0 (no jumpers) for ³       ³ ³ ³   ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ

              single drive install Ù       ³ ³ ³  (Back) A B (Front of drive)

            Enable Parity Checking ÄÄÄÄÄÄÄÄÙ ³ ³         C D

         Enable Motor Start Option ÄÄÄÄÄÄÄÄÄÄÙ ³      ÍÍÑÍÍÍÍÍÍÍÍÍÍPÍWÍA

              Synchronized Spindle ÄÄÄÄÄÄÄÄÄÄÄÄÙ        ³

                                                        ³

              ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

             ÄÅÄ

             A-B      Drive from Power Connector (factory default)

             A-C      Drive from SCSI Bus

             A-C&B-D  Drive from Power Connector and Provide to SCSI Bus

             B-D      Only provide to SCSI Bus

                 Swift with Shrouded SCSI Connector

     ÚÄÄÄ\

     ³ 0 ³  5    ÚÄ If the SCSI connector has a plastic shroud,

     ³ 0 ³  G    ³   note pin-1 on cable and T-res.

     ³ 0 ³  G    ³

     ³ 0 ³ 12 ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ» o o o o o o

     ÀÄÄÄ/    º:::::::::::::::::::1º o o o o o o

     ÍÍÍÍÑÍÍÍÍÍÍÑÍÑÍÍÍÍÍÍÑÍÑÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

         ÀÄÄÄÄÄÄ1 ÀÄÄÄÄÄÄ1 ÀÄÄÄÄÄÄ1  1 2 4 ³ ³ ³

           Terminator Resistors      ÄÄÂÄÄ ³ ³ ³

                                       ³   ³ ³ ³   Terminator Power Select

            Drive ID, binary - use ÅÄÄÄÙ   ³ ³ ³   Header located on the side

             ID 0 (no jumpers) for ³       ³ ³ ³  ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ

              single drive install Ù       ³ ³ ³  (Back) A B (Front of drive)

            Enable Parity Checking ÄÄÄÄÄÄÄÄÙ ³ ³         C D

         Enable Motor Start Option ÄÄÄÄÄÄÄÄÄÄÙ ³      ÍÍÑÍÍÍÍÍÍÍÍÍÍPÍWÍA

              Synchronized Spindle ÄÄÄÄÄÄÄÄÄÄÄÄÙ        ³

                                                        ³

              ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

             ÄÅÄ

             A-B      Drive from Power Connector (factory default)

             A-C      Drive from SCSI Bus

             A-C&B-D  Drive from Power Connector and Provide to SCSI Bus

             B-D      Only provide to SCSI Bus

                             ST-1186NS

                         94351-186S Swift

       UNFORMATTED CAPACITY (MB) ________________186

       FORMATTED CAPACITY (36 SECTORS/1 SPARED)__158.8

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________8,876

       CYLINDERS ________________________________1,268

       HEADS ____________________________________7

       DISCS ____________________________________4

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       TRANSFER RATE (mbytes/sec) _______________1.25

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________32 or 64 Kbyte

         Read Look-Ahead, Non-Adaptive,

         Single-Segmented

       INTERFACE ________________________________SCSI

       SECTORS PER DRIVE ________________________310,170

       TPI (TRACKS PER INCH) ____________________1,543

       BPI (BITS PER INCH) ______________________30,000 max

       AVERAGE ACCESS (ms) ______________________15

       SINGLE TRACK SEEK (ms) ___________________4

       MAX FULL SEEK (ms) _______________________35

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.5

                           +12V TYPICAL (amps) __0.7

                           +5V START-UP (amps) __0.75

                           +5V TYPICAL (amps) ___0.4

                           TYPICAL (watts) ______11

                           MAXIMUM (watts) ______34

       BUFFERED STEP PULSE RATE (micro sec) _____6-200

       WRITE PRECOMP (cyl) ______________________N/A (1269)

       REDUCED WRITE CURRENT (cyl) ______________N/A (1269)

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

Already low-level formatted at the factory.

                          Swift Remote LED Option

               Front View of Drive Without the Plastic Bezel

                                  ÚÄÄÄÂÄÄÄ¿

                                  ³ A ³ B ³    B = Anode

                                  ÃÄÄÄÅÄÄÄ´    D = Cathode

                                  ³ C ³ D ³

              ...ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÏÍÍÍÏÍÍÍÍÍPÍWÍAÍÍÍ...

        ø Default jumper at C-D for LED mounted on drive PWA

        ø To use remote LED, remove jumper and extend B (Anode)

          and D (Cathode).

        ø Swift LED kit 75912397 allows connection to a remote LED

        ø Swift LED kit 95913369 has an LED for attachment to the

          system front bezel or a 5.25-inch frame kit

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-11900N
ST-11900N SCSI-2 Fast (Hawk 2)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-11900N only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

         50 pin I/O Cable Connection

         ³

    J1ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ1¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     Íµ:::::::::::::::::::::::::ÆÍ³ 0 0 0 0 ³ÍÍ

      ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-11900NC only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                     80 pin I/O and DC Power Connection

                     ³

    J1          /ÄÄÄÄ³ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ\      TOP (HDA)

     ÍÍÍÍÍÍÍÍÍÍ/ ×××××××××××××××××××× \ÍÍÍÍÍÍÍÍÍÍ

              (\Ä1ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ40/)    BOTTOM

     Notes on 80 pin I/O connector:

       pins  1 -  4 = +12v        41 - 44 = 12v GND

            34 - 36 = +5v         74 - 76 = 5v GND

                 37 = SYNC             77 = LEDC

                 38 = MTRON            78 = DLYDST

                 39 = SCSIA0           79 = SCSIA1

                 40 = SCSIA2           80 = SCSIA3

  Mating NC connector: AMP US p/n: 2-557103-1 straight-in, Male 80-pin

                                   2-557101-1 right angle

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º RIGHT SIDE VIEW º  (Both ST-11900N and ST-11900NC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Reserved

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)

  ³     Enable T-Res ÄÄÙ³³ÀÄÄ Motor Start

  ³    Parity Enable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍÍ          ³

    ³                                              ³

    ³  1 2     1 2      1 2                        ³

    ³ ÖÄ·       ÖÄ·    ÖÄÄÄ·  A Drive Supplies Bus ³

    ³ ºøºø     øºøº    ÓøÄø½  B Drive Supplies Own ³

    ³ Óø½ø     øÓø½     ø ø   C Bus Supplies Drive ³

    ³   A       B        C                         ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º LEFT SIDE VIEW º  (ST-11900N only)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼             If these ID jumpers are used,

                                 then ID jumpers shown in front

                                 view ARE NOT USED.

  FRONT                TOP (HDA)                 J5 ÕÍÍ1¸ ÕÍ¸BACK

   OF   ÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ:::ÆÍµJ1 OF

  DRIVE                BOTTOM                       ÔÍÍÍ¾ ÔÍ¾DRIVE

                                                     ³³³

                                               ID 1 ÄÙ³ÀÄ ID 4

                                                    ID 2

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (Both ST-11900N and ST-11900NC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                      TOP (HDA)   J6  ÕÍÍÍÍÍ1¸

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::::ÆÍ

                 *    BOTTOM          ÔÍÍÍÍÍÍ¾

                 ³                     123456

            LED ÄÙ                     ³³³³³³

                                  ID 4 Ù³³³³À Reserved

                                  ID 2 ÄÙ³³ÀÄ Remote LED (pin-3 +5v)

                                  ID 1 ÄÄÙÀÄÄ Spindle Synchronization

                                               (pin-6 REF SIG+, default

      If these ID jumper are used, then          jumper installed)

         ID jumpers shown in left side view J5

         or 80 pin I/O cable ARE NOT USED.

                            ST-11900N

                            Hawk 2

       UNFORMATTED CAPACITY (MB) ________________2003

       FORMATTED CAPACITY (xx SECTORS) (MB) _____1700

       AVERAGE SECTORS PER TRACK ________________83 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________39,315

       CYLINDERS ________________________________2,621 user

       HEADS ______PHYSICAL______________________15

       DISCS (3.5 in) ___________________________8

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec)________26.8 to 45.6

       EXTERNAL TRANSFER RATE (mbyte/sec) _______4 Async

       EXTERNAL TRANSFER RATE (mbyte/sec) _______10 Sync

       SPINDLE SPEED (RPM) ______________________5,411

       AVERAGE LATENCY (mSEC) ___________________5.54

       BUFFER ___________________________________256/1024 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 FAST

                                                 ASA

       SECTORS PER DRIVE ________________________

       TPI (TRACKS PER INCH) ____________________3000

       AVERAGE ACCESS (ms) (read/write)__________9.0/10.5

         Drive level without controller overhead

       SINGLE TRACK SEEK (ms) ___________________1

       MAX FULL SEEK (ms) _______________________19

       MTBF (power-on hours) ____________________500,000

       SHOCK (G's):

                operating (Read/Write) __________10

                nonoperating ____________________60

       ACOUSTICS (typ/max dBA) __________________/

       POWER REQUIREMENTS: +12V START-UP (amps) _2.0

                           +12V TYPICAL (amps) __0.54

                           +5V START-UP (amps) __0.8

                           +5V TYPICAL (amps) ___0.43

                           TYPICAL (watts) ______9

                           MAXIMUM (watts) ______

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):     1.63/41.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.75/146.1

                        Weight    (lbs/kg):     2.5/0.99

Already low-level formatted at the factory with six spare sectors

per cylinder and two spare cylinders/unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (08/09/94)


ST-11900W
ST-11900W SCSI-2 Fast (Hawk 2)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-11900W/WD only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

        (TOP)                   Auxiliary

          ___________________  ÚÄÄ  Ä1¿/ÍÍÍÍÍÍÍÍÍ\

        Í( ×××××××××××××××××1)Í³::::::³³ 0 0 0 0 ÆÍ

          \ÄÄÄÄÄÄÄÄÄÄÄÄ³ÄÄÄÄ/  À  ÄÄ  ÙÀÄ5ÄGÄGÄ12Ù

       68 pin I/O CableÙ        ³³³³³³

                                ³³³³³³

                                ³³³³³³

                                ³³³³³³

        Auxiliary option header ³³³³³³

           pin-11 +5v  ÄÄÄÄÄÄÄÄÄÙ³³³³³

           pin-10 GND  ÄÄÄÄÄÄÄÄÄÄÙ³³³³

           SCSI ID = 8 ÄÄÄÄÄÄÄÄÄÄÄÙ³³³

           SCSI ID = 4 ÄÄÄÄÄÄÄÄÄÄÄÄ´³³

            or pin-6 REFIND+ ÄÄÄÄÄÄÙ³³

           SCSI ID = 2 ÄÄÄÄÄÄÄÄÄÄÄÄÄÙ³

           SCSI ID = 1 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

           SCSI ID = 0 (none)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-11900WC only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                     80 pin I/O and DC Power Wall/bracket Connection

                     ³  Female

    J1          /ÄÄÄÄ³ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ\      TOP (HDA)

     ÍÍÍÍÍÍÍÍÍÍ/ ×××××××××××××××××××× \ÍÍÍÍÍÍÍÍÍÍ

              (\Ä1ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ40/)    BOTTOM

     Notes on 80 pin I/O connector:

       pins  1 -  4 = +12v        41 - 44 = 12v GND

            34 - 36 = +5v         74 - 76 = 5v GND

                 37 = SYNC             77 = LEDC

                 38 = MTRON            78 = DLYDST

                 39 = SCSIA0           79 = SCSIA1

                 40 = SCSIA2           80 = SCSIA3

  Mating NC connector: AMP US p/n: 2-557103-1 straight-in, Male 80-pin

                                   2-557101-1 right angle to PCB

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º RIGHT SIDE VIEW º  (Both ST-11900W and ST-11900WC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Reserved

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)

  ³     Enable T-Res ÄÄÙ³³ÀÄÄ Motor Start

  ³    Parity Enable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍÍ          ³

    ³                                              ³

    ³  1 2     1 2      1 2                        ³

    ³ ÖÄ·       ÖÄ·    ÖÄÄÄ·  A Drive Supplies Bus ³

    ³ ºøºø     øºøº    ÓøÄø½  B Drive Supplies Own ³

    ³ Óø½ø     øÓø½     ø ø   C Bus Supplies Drive ³

    ³   A       B        C                         ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

  Note: The model ST-11900WC drive cannot furnish terminator power,

because no pins on the 80 pin I/O connector are devoted to terminator

power.

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (Both ST-11900W and ST-11900WC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                      TOP (HDA)   J6  ÕÍÍÍÍÍ1¸

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::::ÆÍ

                 *    BOTTOM          ÔÍÍÍÍÍÍ¾

                 ³                     ³³³³³³

            LED ÄÙ                     ³³³³³³

                                       ³³³³³³

                                       ³³³³³³

               Auxiliary option header ³³³³³³

                  pin-11 +5v  ÄÄÄÄÄÄÄÄÄÙ³³³³³

                  pin-10 GND  ÄÄÄÄÄÄÄÄÄÄÙ³³³³

                  SCSI ID = 8 ÄÄÄÄÄÄÄÂÄÄÄÙ³³³

                   or pin-8 BUSY ÄÄÄÄÙ    ³³³

                  SCSI ID = 4 ÄÄÄÄÄÄÄÂÄÄÄÄÙ³³

                   or pin-6 REFIND+ ÄÙ     ³³

                  SCSI ID = 2 ÄÄÄÄÄÄÄÄÄÄÄÄÄÙ³

                  SCSI ID = 1 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

                  SCSI ID = 0 (none)

      If these ID jumper are used, then

         ID jumpers shown in left side view J5

         or 80 pin I/O cable ARE NOT USED.

                            ST-11900W

                            Hawk 2

       UNFORMATTED CAPACITY (MB) ________________2003

       FORMATTED CAPACITY (xx SECTORS) (MB) _____1700

       AVERAGE SECTORS PER TRACK ________________83 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________39,315

       CYLINDERS ________________________________2,621 user

       HEADS ______PHYSICAL______________________15

       DISCS (3.5 in) ___________________________8

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec)________26.8 to 45.6

       EXTERNAL TRANSFER RATE (mbyte/sec) _______20 Sync

       SPINDLE SPEED (RPM) ______________________5,411

       AVERAGE LATENCY (mSEC) ___________________5.54

       BUFFER ___________________________________256/1024 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 FAST WIDE

                                                 ASA

       SECTORS PER DRIVE ________________________

       TPI (TRACKS PER INCH) ____________________3000

       AVERAGE ACCESS (ms) (read/write)__________9.0/10.5

         Drive level without controller overhead

       SINGLE TRACK SEEK (ms) ___________________1

       MAX FULL SEEK (ms) _______________________19

       MTBF (power-on hours) ____________________500,000

       SHOCK (G's):

                operating (Read/Write) __________10

                nonoperating ____________________60

       ACOUSTICS (typ/max dBA) __________________/

       POWER REQUIREMENTS: +12V START-UP (amps) _2.0

                           +12V TYPICAL (amps) __0.54

                           +5V START-UP (amps) __0.8

                           +5V TYPICAL (amps) ___0.43

                           TYPICAL (watts) ______9

                           MAXIMUM (watts) ______

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):     1.63/41.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.75/146.1

                        Weight    (lbs/kg):     2.5/0.99

Already low-level formatted at the factory with six spare sectors

per cylinder and two spare cylinders/unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (08/09/94)


ST-11950N
ST-11950N SCSI-2 Fast (Barracuda 1)

 ÉÍÍÍÍÍÍÍÍÍÍÍ»               J01ÄÄÄÄÄ¿  1Ä¿ ÄÄÄÄÄÄÄJ4-1ÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

 º REAR VIEW º              (see    1³¿ ³"³                          ³

 ÈÍÍÍÍÍÍÍÍÍÍÍ¼               below) ÀÄÙ ³"³                          ³

                                        ³"³J4 1-11                   ³

 Terminating ResistorsÄ¿                ³"³(see detail below)        ³

         ÚÄÄÄÄÄÄ¿ ÚÄÄÄÄ³Ä¿              ³"³                          ³

(TOP)    ÀÄÄÄÄÄÄ1 ÀÄÄÄÄÄÄ1              À"ÙÄJ4-11¿                   ³

      ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÑ/ÍÍÍÍÍÍÍÍÍ\     ³                   ³

     Íµ::::::::::::::::::::::::1Æ³ 0 0 0 0 ÆÍ    ³                   ³

      ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ³ÍÍÏÀÄ5ÄGÄGÄ12Ù     ³               5   1

 50 pin I/O Cable ConnectionÄÙ                   : : : : : : : : : : :

                                                 ³ ³ ³ ³ ³ ³ ³ ³ 6 ³ 2

                              SCSI ID = 0 (none) ³ ³ ³ ³ ³ ³ ³ ³ ³ ³ ³

                              SCSI ID = 4 ÄÄÄÄÄÄÄÙ ³ ³ ³ ³ ³ ³ ³ ³ ³ ³

                              SCSI ID = 2 ÄÄÄÄÄÄÄÄÄÙ ³ ³ ³ ³ ³ ³ ³ ³ ³

                              SCSI ID = 1 ÄÄÄÄÄÄÄÄÄÄÄÙ ³ ³ ³ ³ ³ ³ ³ ³

                        Reserved (default OFF) ÄÄÄÄÄÄÄÄÙ ³ ³ ³ ³ ³ ³ ³

                        Parity Disable ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ ³ ³ ³ ³ ³ ³

                        Enable Motor Start ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ ³ ³ ³ ³ ³

                        Delay Motor Start (10 sec * ID) ÄÄÄÄÄÙ ³ ³ ³ ³

                        Write Protect Enable ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ ³ ³ ³

                        Remote LED Connector ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ ³ ³

                         [pin-5 cathode (neg), pin-6 anode (pos)]  ³ ³

                        Reserved (default OFF) ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ ³

                        Spindle Synch Cable Connector ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

                          (pin-1 SSREF, pin-2 ground)

ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

³ J01 - Terminator Power Jumpers ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ                  ³

            Terminator power from the drive.       Ö1Ä2· *

              (default)                            ÓøÄø½

                                                    ø ø

            Terminator power from pin 26 on the      ÖÄ· *

              SCSI bus.                             øºøº

                                                    øÓø½

            Terminator power to the SCSI bus on     ÖÄ·

              pin 26.                               ºøºø

                                                    Óø½ø

            Terminator power to the SCSI bus and    ÖÄÒÄ·*

              drive.                                ºøºøº

                                                    Óø½øÐ

            * Valid for single-ended drives only.

    Note: ST-11950ND (differential model) does not come with any

          provision to use Termination resistors.  Therefore, SCSI bus

          needs to be externally terminated.

                            ST-11950N

       UNFORMATTED CAPACITY (MB) ________________2030

       FORMATTED CAPACITY (xx SECTORS) (MB) _____1690

       AVERAGE SECTORS PER TRACK ________________81 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________40,665

       CYLINDERS ________________________________2,706 user

       HEADS ______PHYSICAL______________________15

       DISCS (3.5 in) ___________________________8

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec)________34.3 to 56.5

       EXTERNAL TRANSFER RATE (mbyte/sec) _______5 Async

       EXTERNAL TRANSFER RATE (mbyte/sec) _______10 Sync

       SPINDLE SPEED (RPM) ______________________7,200

       AVERAGE LATENCY (mSEC) ___________________4.17

       BUFFER ___________________________________1024 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 FAST

       BYTES PER TRACK __________________________49,768 average

       SECTORS PER DRIVE ________________________3,291,790

       TPI (TRACKS PER INCH) ____________________3,047

       BPI (BITS PER INCH) ______________________52,187

       AVERAGE ACCESS (ms) (read/write)__________8.0/9.0

         Drive level without controller overhead

       SINGLE TRACK SEEK (ms) ___________________0.6/0.9

       MAX FULL SEEK (ms) _______________________17/19

       MTBF (power-on hours) ____________________500,000

       POWER DISSIPATION (watts/BTUs) Active ____16/55

                                      Idle ______15/51

       POWER REQUIREMENTS: +12V START-UP (amps) _2.18

                           +12V TYPICAL (amps) __0.83 idle

                           +5V START-UP (amps) __1.0

                           +5V TYPICAL (amps) ___0.76 idle

                           IDLE (watts) _________12.5

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):     1.63/41.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.97/151.6

                        Weight    (lbs/kg):     2.3/1.04

Already low-level formatted at the factory with 6 spare sectors

per cylinder and 1 spare cylinder/unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (09/18/96)


ST-11950W
ST-11950W SCSI-2 Fast Wide (Barracuda 1) (aka ST-11951N)

                                        J01ÄÄÄÄÄ¿

                                       (see    1³¿

ÉÍÍÍÍÍÍÍÍÍÍÍ»                           below) ÀÄÙ

º REAR VIEW º                                  1Ä¿ ÄÄÄÄÄÄÄÄJ4-1ÄÄÄÄ¿

ÈÍÍÍÍÍÍÍÍÍÍÍ¼                                  ³"³                 |

                                               ³"³J4 1-6           ³

                                               ³"³(see below)      |

                                               Ã"´ÄJ4-6ÄÄ¿         ³

        (TOP)                    J5            À"Ù-J4-7¿ |         |

          ___________________  ÚÄÄ  Ä1¿/ÍÍÍÍÍÍÍÍÍ\     | |         |

        Í( ×××××××××××××××××1)Í³::::::³³ 0 0 0 0 ÆÍ    ³ ³         ³

          \ÄÄÄÄÄÄÄÄÄÄÄÄ³ÄÄÄÄ/  À  ÄÄ  ÙÀÄ5ÄGÄGÄ12Ù     ³ ³         1

       68 pin I/O CableÙ        ³³³³³³                 : : : : : : :

       Connection               ³³³³³³                 ³ ³ ³ ³ ³ ³ 2

                                ³³³³³³  Reserved ÄÄÄÄÄÄÙ ³ ³ ³ ³ ³ ³

Spindle Synch Cable Connector ÄÄÙ³³³³³   (some drives do ³ ³ ³ ³ ³ ³

  (pin-11 SSREF, pin-12 ground)  ³³³³³    not have this  ³ ³ ³ ³ ³ ³

Remote LED Connector ÄÄÄÄÄÄÄÄÄÄÄÄÙ³³³³    #7 jumper)     ³ ³ ³ ³ ³ ³

 [pin-9 cathode (neg),            ³³³³  Enable Drive ÄÄÄÄÙ ³ ³ ³ ³ ³

  pin-10 anode (pos)]             ³³³³   Terminators       ³ ³ ³ ³ ³

                                  ³³³³  Reserved ÄÄÄÄÄÄÄÄÄÄÙ ³ ³ ³ ³

SCSI ID = 8 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ³³³   (default OFF)       ³ ³ ³ ³

SCSI ID = 4 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ³³  Parity Disable ÄÄÄÄÄÄÙ ³ ³ ³

SCSI ID = 2 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ³  Enable Motor Start ÄÄÄÄÙ ³ ³

SCSI ID = 1 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ  Delay Motor Start ÄÄÄÄÄÄÄÙ ³

SCSI ID = 0 (none)                       (10 sec * ID)             ³

                                        Write Protect Enable ÄÄÄÄÄÄÙ

ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

³ J01 - Terminator Power Jumpers ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ                  ³

            Terminator power from the drive.       Ö1ÄÄ· *

              (default)                            ÓøÄø½

                                                    ø ø

            Terminator power from pin 26 on the      ÖÄ· *

              SCSI bus.                             øºøº

                                                    øÓø½

            Terminator power to the SCSI bus on     ÖÄ·

              pin 26                                ºøºø

                                                    Óø½ø

            Terminator power to the SCSI bus and    ÖÄÒÄ·*

              drive.                                ºøºøº

                                                    Óø½øÐ

            * Valid for single-ended drives only.

    Note: ST-11950WD (differential model) does not come with any

          provision to use Termination resistors.  Therefore, SCSI bus

          needs to be externally terminated.

                            ST-11950W

       UNFORMATTED CAPACITY (MB) ________________2030

       FORMATTED CAPACITY (xx SECTORS) (MB) _____1690

       AVERAGE SECTORS PER TRACK ________________81 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________40,665

       CYLINDERS ________________________________2,706 user

       HEADS ______PHYSICAL______________________15

       DISCS (3.5 in) ___________________________8

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec)________34.3 to 56.5

       EXTERNAL TRANSFER RATE (mbyte/sec) _______20 Sync

       SPINDLE SPEED (RPM) ______________________7,200

       AVERAGE LATENCY (mSEC) ___________________4.17

       BUFFER __W/WD_____________________________1024/512 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 FAST WIDE

       BYTES PER TRACK __________________________49,768 average

       SECTORS PER DRIVE ________________________3,291,790

       TPI (TRACKS PER INCH) ____________________3,047

       BPI (BITS PER INCH) ______________________52,187

       AVERAGE ACCESS (ms) (read/write)__________8.0/9.0

         Drive level without controller overhead

       SINGLE TRACK SEEK (ms) ___________________0.6/0.9

       MAX FULL SEEK (ms) _______________________17/19

       MTBF (power-on hours) ____________________500,000

       POWER DISSIPATION (watts/BTUs) Active ____16/55

                                      Idle ______15/51

       POWER REQUIREMENTS: +12V START-UP (amps) _2.18

                           +12V TYPICAL (amps) __0.83 idle

                           +5V START-UP (amps) __1.0

                           +5V TYPICAL (amps) ___0.76 idle

                           IDLE (watts) _________12.5

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):     1.63/41.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.97/151.6

                        Weight    (lbs/kg):     2.3/1.04

Already low-level formatted at the factory with 6 spare sectors

per cylinder and 1 spare cylinders per unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (09/18/96)


ST-1201N
ST-1201N (94351-200) Swift SCSI

     ÚÄÄÄ\

     ³ 0 ³  5

     ³ 0 ³  G

     ³ 0 ³  G

     ³ 0 ³ 12  ....................  o o o o o o

     ÀÄÄÄ/     1...................  o o o o o o

     ÍÍÍÍÑÍÍÍÍÍÍÑÍÑÍÍÍÍÍÍÑÍÑÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

         1ÄÄÄÄÄÄÙ 1ÄÄÄÄÄÄÙ 1ÄÄÄÄÄÄÙ  1 2 4 ³ ³ ³

           Terminator Resistors      ÄÄÂÄÄ ³ ³ ³

                                       ³   ³ ³ ³   Terminator Power Select

            Drive ID, binary - use ÅÄÄÄÙ   ³ ³ ³   Header located on the side

             ID 0 (no jumpers) for ³       ³ ³ ³   ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ

              single drive install Ù       ³ ³ ³  (Back) A B (Front of drive)

            Enable Parity Checking ÄÄÄÄÄÄÄÄÙ ³ ³         C D

         Enable Motor Start Option ÄÄÄÄÄÄÄÄÄÄÙ ³      ÍÍÑÍÍÍÍÍÍÍÍÍÍPÍWÍA

              Synchronized Spindle ÄÄÄÄÄÄÄÄÄÄÄÄÙ        ³

                                                        ³

              ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

             ÄÅÄ

             A-B      Drive from Power Connector (factory default)

             A-C      Drive from SCSI Bus

             A-C&B-D  Drive from Power Connector and Provide to SCSI Bus

             B-D      Only provide to SCSI Bus

                 Swift with Shrouded SCSI Connector

     ÚÄÄÄ\

     ³ 0 ³  5    ÚÄ If the SCSI connector has a plastic shroud,

     ³ 0 ³  G    ³   note pin-1 on cable and T-res.

     ³ 0 ³  G    ³

     ³ 0 ³ 12 ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ» o o o o o o

     ÀÄÄÄ/    º:::::::::::::::::::1º o o o o o o

     ÍÍÍÍÑÍÍÍÍÍÍÑÍÑÍÍÍÍÍÍÑÍÑÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

         ÀÄÄÄÄÄÄ1 ÀÄÄÄÄÄÄ1 ÀÄÄÄÄÄÄ1  1 2 4 ³ ³ ³

           Terminator Resistors      ÄÄÂÄÄ ³ ³ ³

                                       ³   ³ ³ ³   Terminator Power Select

            Drive ID, binary - use ÅÄÄÄÙ   ³ ³ ³   Header located on the side

             ID 0 (no jumpers) for ³       ³ ³ ³  ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ

              single drive install Ù       ³ ³ ³  (Back) A B (Front of drive)

            Enable Parity Checking ÄÄÄÄÄÄÄÄÙ ³ ³         C D

         Enable Motor Start Option ÄÄÄÄÄÄÄÄÄÄÙ ³      ÍÍÑÍÍÍÍÍÍÍÍÍÍPÍWÍA

              Synchronized Spindle ÄÄÄÄÄÄÄÄÄÄÄÄÙ        ³

                                                        ³

              ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

             ÄÅÄ

             A-B      Drive from Power Connector (factory default)

             A-C      Drive from SCSI Bus

             A-C&B-D  Drive from Power Connector and Provide to SCSI Bus

             B-D      Only provide to SCSI Bus

                             ST-1201N

                          94351-200 Swift

       UNFORMATTED CAPACITY (MB) ________________201

       FORMATTED CAPACITY (36 SECTORS/1 SPARED)__171.9

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________9,612

       CYLINDERS ________________________________1,068

       HEADS ____________________________________9

       DISCS ____________________________________5

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       TRANSFER RATE (mbytes/sec) _______________1.25

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________32 or 64 Kbyte

         Read Look-Ahead, Non-Adaptive,

         Single-Segmented

       INTERFACE ________________________________SCSI

       SECTORS PER DRIVE ________________________335,790

       TPI (TRACKS PER INCH) ____________________1,350

       BPI (BITS PER INCH) ______________________28,282

       AVERAGE ACCESS (ms) ______________________15

       SINGLE TRACK SEEK (ms) ___________________4

       MAX FULL SEEK (ms) _______________________35

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.5

                           +12V TYPICAL (amps) __0.7

                           +5V START-UP (amps) __0.75

                           +5V TYPICAL (amps) ___0.4

                           TYPICAL (watts) ______11

                           MAXIMUM (watts) ______34

       BUFFERED STEP PULSE RATE (micro sec) _____6-200

       WRITE PRECOMP (cyl) ______________________N/A (1069)

       REDUCED WRITE CURRENT (cyl) ______________N/A (1069)

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

Already low-level formatted at the factory.

                          Swift Remote LED Option

               Front View of Drive Without the Plastic Bezel

                                  ÚÄÄÄÂÄÄÄ¿

                                  ³ A ³ B ³    B = Anode

                                  ÃÄÄÄÅÄÄÄ´    D = Cathode

                                  ³ C ³ D ³

              ...ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÏÍÍÍÏÍÍÍÍÍPÍWÍAÍÍÍ...

        ø Default jumper at C-D for LED mounted on drive PWA

        ø To use remote LED, remove jumper and extend B (Anode)

          and D (Cathode).

        ø Swift LED kit 75912397 allows connection to a remote LED

        ø Swift LED kit 95913369 has an LED for attachment to the

          system front bezel or a 5.25-inch frame kit

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-1239NS
ST-1239NS (94351-230S) Swift SCSI

     ÚÄÄÄ\

     ³ 0 ³  5

     ³ 0 ³  G

     ³ 0 ³  G

     ³ 0 ³ 12  ....................  o o o o o o

     ÀÄÄÄ/     1...................  o o o o o o

     ÍÍÍÍÑÍÍÍÍÍÍÑÍÑÍÍÍÍÍÍÑÍÑÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

         1ÄÄÄÄÄÄÙ 1ÄÄÄÄÄÄÙ 1ÄÄÄÄÄÄÙ  1 2 4 ³ ³ ³

           Terminator Resistors      ÄÄÂÄÄ ³ ³ ³

                                       ³   ³ ³ ³   Terminator Power Select

            Drive ID, binary - use ÅÄÄÄÙ   ³ ³ ³   Header located on the side

             ID 0 (no jumpers) for ³       ³ ³ ³   ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ

              single drive install Ù       ³ ³ ³  (Back) A B (Front of drive)

            Enable Parity Checking ÄÄÄÄÄÄÄÄÙ ³ ³         C D

         Enable Motor Start Option ÄÄÄÄÄÄÄÄÄÄÙ ³      ÍÍÑÍÍÍÍÍÍÍÍÍÍPÍWÍA

              Synchronized Spindle ÄÄÄÄÄÄÄÄÄÄÄÄÙ        ³

                                                        ³

              ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

             ÄÅÄ

             A-B      Drive from Power Connector (factory default)

             A-C      Drive from SCSI Bus

             A-C&B-D  Drive from Power Connector and Provide to SCSI Bus

             B-D      Only provide to SCSI Bus

                 Swift with Shrouded SCSI Connector

     ÚÄÄÄ\

     ³ 0 ³  5    ÚÄ If the SCSI connector has a plastic shroud,

     ³ 0 ³  G    ³   note pin-1 on cable and T-res.

     ³ 0 ³  G    ³

     ³ 0 ³ 12 ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ» o o o o o o

     ÀÄÄÄ/    º:::::::::::::::::::1º o o o o o o

     ÍÍÍÍÑÍÍÍÍÍÍÑÍÑÍÍÍÍÍÍÑÍÑÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

         ÀÄÄÄÄÄÄ1 ÀÄÄÄÄÄÄ1 ÀÄÄÄÄÄÄ1  1 2 4 ³ ³ ³

           Terminator Resistors      ÄÄÂÄÄ ³ ³ ³

                                       ³   ³ ³ ³   Terminator Power Select

            Drive ID, binary - use ÅÄÄÄÙ   ³ ³ ³   Header located on the side

             ID 0 (no jumpers) for ³       ³ ³ ³  ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ

              single drive install Ù       ³ ³ ³  (Back) A B (Front of drive)

            Enable Parity Checking ÄÄÄÄÄÄÄÄÙ ³ ³         C D

         Enable Motor Start Option ÄÄÄÄÄÄÄÄÄÄÙ ³      ÍÍÑÍÍÍÍÍÍÍÍÍÍPÍWÍA

              Synchronized Spindle ÄÄÄÄÄÄÄÄÄÄÄÄÙ        ³

                                                        ³

              ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

             ÄÅÄ

             A-B      Drive from Power Connector (factory default)

             A-C      Drive from SCSI Bus

             A-C&B-D  Drive from Power Connector and Provide to SCSI Bus

             B-D      Only provide to SCSI Bus

                             ST-1239NS

                          94351-230S Swift

       UNFORMATTED CAPACITY (MB) ________________239

       FORMATTED CAPACITY (36 SECTORS/1 SPARED)__204.2

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________11,412

       CYLINDERS ________________________________1,268

       HEADS ____________________________________9

       DISCS ____________________________________5

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       TRANSFER RATE (mbytes/sec) _______________1.25

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________32 or 64 Kbyte

         Read Look-Ahead, Non-Adaptive,

         Single-Segmented

       INTERFACE ________________________________SCSI

       SECTORS PER DRIVE ________________________398,790

       TPI (TRACKS PER INCH) ____________________1,543

       BPI (BITS PER INCH) ______________________30,000 max

       AVERAGE ACCESS (ms) ______________________15

       SINGLE TRACK SEEK (ms) ___________________4

       MAX FULL SEEK (ms) _______________________35

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.5

                           +12V TYPICAL (amps) __0.7

                           +5V START-UP (amps) __0.75

                           +5V TYPICAL (amps) ___0.4

                           TYPICAL (watts) ______11

                           MAXIMUM (watts) ______34

       BUFFERED STEP PULSE RATE (micro sec) _____6-200

       WRITE PRECOMP (cyl) ______________________N/A (1269)

       REDUCED WRITE CURRENT (cyl) ______________N/A (1269)

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

Already low-level formatted at the factory.

                          Swift Remote LED Option

               Front View of Drive Without the Plastic Bezel

                                  ÚÄÄÄÂÄÄÄ¿

                                  ³ A ³ B ³    B = Anode

                                  ÃÄÄÄÅÄÄÄ´    D = Cathode

                                  ³ C ³ D ³

              ...ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÏÍÍÍÏÍÍÍÍÍPÍWÍAÍÍÍ...

        ø Default jumper at C-D for LED mounted on drive PWA

        ø To use remote LED, remove jumper and extend B (Anode)

          and D (Cathode).

        ø Swift LED kit 75912397 allows connection to a remote LED

        ø Swift LED kit 95913369 has an LED for attachment to the

          system front bezel or a 5.25-inch frame kit

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-12400N
ST-12400N SCSI-2 Fast (Hawk 2)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-12400N only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

         50 pin I/O Cable Connection

         ³

    J1ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ1¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     Íµ:::::::::::::::::::::::::ÆÍ³ 0 0 0 0 ³ÍÍ

      ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-12400NC only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                     80 pin I/O and DC Power Connection

                     ³

    J1          /ÄÄÄÄ³ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ\      TOP (HDA)

     ÍÍÍÍÍÍÍÍÍÍ/ ×××××××××××××××××××× \ÍÍÍÍÍÍÍÍÍÍ

              (\Ä1ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ40/)    BOTTOM

     Notes on 80 pin I/O connector:

       pins  1 -  4 = +12v        41 - 44 = 12v GND

            34 - 36 = +5v         74 - 76 = 5v GND

                 37 = SYNC             77 = LEDC

                 38 = MTRON            78 = DLYDST

                 39 = SCSIA0           79 = SCSIA1

                 40 = SCSIA2           80 = SCSIA3

  Mating NC connector: AMP US p/n: 2-557103-1 straight-in, Male 80-pin

                                   2-557101-1 right angle to PCB

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º RIGHT SIDE VIEW º  (Both ST-12400N and ST-12400NC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Reserved

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)

  ³     Enable T-Res ÄÄÙ³³ÀÄÄ Motor Start

  ³    Parity Enable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍÍ          ³

    ³                                              ³

    ³  1 2     1 2      1 2                        ³

    ³ ÖÄ·       ÖÄ·    ÖÄÄÄ·  A Drive Supplies Bus ³

    ³ ºøºø     øºøº    ÓøÄø½  B Drive Supplies Own ³

    ³ Óø½ø     øÓø½     ø ø   C Bus Supplies Drive ³

    ³   A       B        C                         ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º LEFT SIDE VIEW º  (ST-12400N only)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼             If these ID jumpers are used,

                                 then ID jumpers shown in front

                                 view ARE NOT USED.

  FRONT                TOP (HDA)                 J5 ÕÍÍ1¸ ÕÍ¸BACK

   OF   ÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ:::ÆÍµJ1 OF

  DRIVE                BOTTOM                       ÔÍÍÍ¾ ÔÍ¾DRIVE

                                                     ³³³

                                               ID 1 ÄÙ³ÀÄ ID 4

                                                    ID 2

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (Both ST-12400N and ST-12400NC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                      TOP (HDA)   J6  ÕÍÍÍÍÍ1¸

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::::ÆÍ

                 *    BOTTOM          ÔÍÍÍÍÍÍ¾

                 ³                     123456

            LED ÄÙ                     ³³³³³³

                                  ID 4 Ù³³³³À Reserved

                                  ID 2 ÄÙ³³ÀÄ Remote LED (pin-3 +5v)

                                  ID 1 ÄÄÙÀÄÄ Spindle Synchronization

                                               (pin-6 REF SIG+, default

      If these ID jumper are used, then          jumper installed)

         ID jumpers shown in left side view J5

         or 80 pin I/O cable ARE NOT USED.

                            ST-12400N

                            Hawk 2

       UNFORMATTED CAPACITY (MB) ________________2537

       FORMATTED CAPACITY (xx SECTORS) (MB) _____2148

       AVERAGE SECTORS PER TRACK ________________83 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________49,799

       CYLINDERS ________________________________2,621 user

       HEADS ______PHYSICAL______________________19

       DISCS (3.5 in) ___________________________10

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec)________26.8 to 45.6

       EXTERNAL TRANSFER RATE (mbyte/sec) _______5 Async

       EXTERNAL TRANSFER RATE (mbyte/sec) _______10 Sync

       SPINDLE SPEED (RPM) ______________________5,411

       AVERAGE LATENCY (mSEC) ___________________5.54

       BUFFER ___________________________________256/1024 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 FAST

                                                 ASA

       SECTORS PER DRIVE ________________________

       TPI (TRACKS PER INCH) ____________________3000

       AVERAGE ACCESS (ms) (read/write)__________9.0/10.5

         Drive level without controller overhead

       SINGLE TRACK SEEK (ms) ___________________1

       MAX FULL SEEK (ms) _______________________19

       MTBF (power-on hours) ____________________500,000

       SHOCK (G's):

                operating (Read/Write) __________10

                nonoperating ____________________60

       ACOUSTICS (typ/max dBA) __________________/

       POWER REQUIREMENTS: +12V START-UP (amps) _2.0

                           +12V TYPICAL (amps) __0.54

                           +5V START-UP (amps) __0.8

                           +5V TYPICAL (amps) ___0.43

                           TYPICAL (watts) ______9

                           MAXIMUM (watts) ______

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):     1.63/41.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.75/146.1

                        Weight    (lbs/kg):     2.5/0.99

Already low-level formatted at the factory with twelve spare sectors

per cylinder and two spare cylinders/unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (08/09/94)


ST-12400W
ST-12400W SCSI-2 Fast Wide (Hawk 2)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-12400W/WD only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

        (TOP)                J1-Auxiliary

          ___________________  ÚÄÄ  Ä1¿/ÍÍÍÍÍÍÍÍÍ\

        Í( ×××××××××××××××××1)Í³::::::³³ 0 0 0 0 ÆÍ

          \ÄÄÄÄÄÄÄÄÄÄÄÄ³ÄÄÄÄ/  À  ÄÄ 2ÙÀÄ5ÄGÄGÄ12Ù

       68 pin I/O CableÙ        ³³³³³³

                                ³³³³³³

        Auxiliary option header ³³³³³³    SCSI ID = 0 (none)

           pin-11 +5v  ÄÄÄÄÄÄÄÄÄÙ³³³³ÀÄÄÄ SCSI ID = 1

           pin-10 GND  ÄÄÄÄÄÄÄÄÄÄÙ³³ÀÄÄÄÄ SCSI ID = 2

           SCSI ID = 8 ÄÄÄÄÄÄÄÂÄÄÄÙÀÄÂÄÄÄ SCSI ID = 4

            or pin-8 BUSY ÄÄÄÄÙ      ÀÄÄÄ or pin-6 REFIND+

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-12400WC only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                     80 pin I/O and DC Power Wall/bracket Connection

                     ³  Female

    J1          /ÄÄÄÄ³ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ\      TOP (HDA)

     ÍÍÍÍÍÍÍÍÍÍ/ ×××××××××××××××××××× \ÍÍÍÍÍÍÍÍÍÍ

              (\Ä1ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ40/)    BOTTOM

     Notes on 80 pin I/O connector:

       pins  1 -  4 = +12v        41 - 44 = 12v GND

            34 - 36 = +5v         74 - 76 = 5v GND

                 37 = SYNC             77 = LEDC

                 38 = MTRON            78 = DLYDST

                 39 = SCSIA0           79 = SCSIA1

                 40 = SCSIA2           80 = SCSIA3

  Mating NC connector: AMP US p/n: 2-557103-1 straight-in, Male 80-pin

                                   2-557101-1 right angle to PCB

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º RIGHT SIDE VIEW º  (Both ST-12400W and ST-12400WC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Reserved

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)

  ³     Enable T-Res ÄÄÙ³³ÀÄÄ Motor Start

  ³    Parity Enable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄST12400W onlyÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍÍ          ³

    ³                                              ³

    ³  1 2     1 2      1 2                        ³

    ³ ÖÄ·       ÖÄ·    ÖÄÄÄ·  A Drive Supplies Bus ³

    ³ ºøºø     øºøº    ÓøÄø½  B Drive Supplies Own ³

    ³ Óø½ø     øÓø½     ø ø   C Bus Supplies Drive ³

    ³   A       B        C                         ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

  Note: The model ST-12400WC drive cannot furnish terminator power,

because no pins on the 80 pin I/O connector are devoted to terminator

power.

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (ST-12400W only)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                      TOP (HDA)   J6  ÕÍÍÍÍÍ1¸

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::::ÆÍ

                 *    BOTTOM          ÔÍÍÍÍÍ2¾

                 ³                     ³³³³³³

            LED ÄÙ                     ³³³³³³

                                       ³³³³³³

               Auxiliary option header ³³³³³³    SCSI ID = 0 (none)

                  pin-11 +5v  ÄÄÄÄÄÄÄÄÄÙ³³³³ÀÄÄÄ SCSI ID = 1

                  pin-10 GND  ÄÄÄÄÄÄÄÄÄÄÙ³³ÀÄÄÄÄ SCSI ID = 2

                  SCSI ID = 8 ÄÄÄÄÄÄÄÂÄÄÄÙÀÄÂÄÄÄ SCSI ID = 4

                   or pin-8 BUSY ÄÄÄÄÙ      ÀÄÄÄ or pin-6 REFIND+

      If these ID jumper are used, then

         ID jumpers shown in rear view Aux-J1

         or 80 pin I/O cable ARE NOT USED.

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (ST-12400WC only)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                      TOP (HDA)   J6  ÕÍÍÍÍÍ1¸

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::::ÆÍ

                 *    BOTTOM          ÔÍÍÍÍÍ2¾

                 ³                     ³³³³³³

            LED ÄÙ                     ³³³³³³

                                       ³³³³³³

                  SCSI ID = 8 ÄÄÄÄÄÄÄÄÄÙ³³³³ÀÄÄÄ Remote LED (pin-2 cathode)

                  SCSI ID = 4 ÄÄÄÄÄÄÄÄÄÄÙ³³ÀÄÄÄÄ Sync Spindle

                  SCSI ID = 2 ÄÄÄÄÄÄÄÄÄÄÄÙ³      SCSI ID = 0 (none)

                                          ÀÄÄÄÄÄ SCSI ID = 1

                            ST-12400W

                            Hawk 2

       UNFORMATTED CAPACITY (MB) ________________2537

       FORMATTED CAPACITY (xx SECTORS) (MB) _____2148

       AVERAGE SECTORS PER TRACK ________________84 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________49,799

       CYLINDERS ________________________________2,621 user

       HEADS ______PHYSICAL______________________19

       DISCS (3.5 in) ___________________________10

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec)________26.8 to 45.6

       EXTERNAL TRANSFER RATE (mbyte/sec) _______20 Sync

       SPINDLE SPEED (RPM) ______________________5,411

       AVERAGE LATENCY (mSEC) ___________________5.54

       BUFFER ___________________________________256/1024 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 FAST

                                                 ASA

       SECTORS PER DRIVE ________________________

       TPI (TRACKS PER INCH) ____________________3000

       AVERAGE ACCESS (ms) (read/write)__________9.3/10.8

         Drive level without controller overhead

       SINGLE TRACK SEEK (ms) ___________________1

       MAX FULL SEEK (ms) _______________________21

       MTBF (power-on hours) ____________________500,000

       SHOCK (G's):

                operating (Read/Write) __________10

                nonoperating ____________________60

       ACOUSTICS (typ/max dBA) __________________

       POWER REQUIREMENTS: +12V START-UP (amps) _2.4

                           +12V TYPICAL (amps) __0.57

                           +5V START-UP (amps) __0.8

                           +5V TYPICAL (amps) ___0.42

                           TYPICAL (watts) ______8.9

                           MAXIMUM (watts) ______10.8

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):     1.63/41.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.75/146.1

                        Weight    (lbs/kg):     2.5/0.99

Already low-level formatted at the factory with twelve spare sectors

per cylinder and two spare cylinders/unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (08/26/94)


ST-12450W
ST-12450W SCSI-2 Fast Wide (Barracuda 2, 2HP)

2HP = 2 Head Parallel = two read write channels at once

                                        J01ÄÄÄÄÄ¿

                                       (see    1³¿

ÉÍÍÍÍÍÍÍÍÍÍÍ»                           below) ÀÄÙ

º REAR VIEW º                                  1Ä¿ ÄÄÄÄÄÄÄÄJ4-1ÄÄÄÄ¿

ÈÍÍÍÍÍÍÍÍÍÍÍ¼                                  ³"³                 |

                                               ³"³J4 1-6           ³

                                               ³"³(see below)      |

                                               Ã"´ÄJ4-6ÄÄ¿         ³

        (TOP)                    J5            À"Ù-J4-8¿ |         |

          ___________________  ÚÄÄ  Ä1¿/ÍÍÍÍÍÍÍÍÍ\     | |         |

        Í( ×××××××××××××××××1)Í³::::::³³ 0 0 0 0 ÆÍ    ³ ³         ³

          \ÄÄÄÄÄÄÄÄÄÄÄÄ³ÄÄÄÄ/  À  ÄÄ  ÙÀÄ5ÄGÄGÄ12Ù     ³ ³         1

       68 pin I/O CableÙ        ³³³³³³                 : : : : : : :

       Connection               ³³³³³³                 ³ ³ ³ ³ ³ ³ 2

                                ³³³³³³  Reserved ÄÄÄÄÄÄÙ ³ ³ ³ ³ ³ ³

Spindle Synch Cable Connector ÄÄÙ³³³³³   (J4-7 and J4-8  ³ ³ ³ ³ ³ ³

  (pin-11 SSREF, pin-12 ground)  ³³³³³    are reserved)  ³ ³ ³ ³ ³ ³

Remote LED Connector ÄÄÄÄÄÄÄÄÄÄÄÄÙ³³³³                   ³ ³ ³ ³ ³ ³

 [pin-9 cathode (neg),            ³³³³  Enable Drive ÄÄÄÄÙ ³ ³ ³ ³ ³

  pin-10 anode (pos)]             ³³³³   Terminators       ³ ³ ³ ³ ³

                                  ³³³³  Reserved ÄÄÄÄÄÄÄÄÄÄÙ ³ ³ ³ ³

SCSI ID = 8 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ³³³   (default OFF)       ³ ³ ³ ³

SCSI ID = 4 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ³³  Parity Disable ÄÄÄÄÄÄÙ ³ ³ ³

SCSI ID = 2 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ³  Enable Motor Start ÄÄÄÄÙ ³ ³

SCSI ID = 1 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ  Delay Motor Start ÄÄÄÄÄÄÄÙ ³

SCSI ID = 0 (none)                       (10 sec * ID)             ³

                                        Write Protect Enable ÄÄÄÄÄÄÙ

ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

³ J01 - Terminator Power Jumpers ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ                  ³

            Terminator power from the drive.       Ö1ÄÄ· *

              (default)                            ÓøÄø½

                                                    ø ø

            Terminator power from pin 26 on the      ÖÄ· *

              SCSI bus.                             øºøº

                                                    øÓø½

            Terminator power to the SCSI bus on     ÖÄ·

              pin 26.                               ºøºø

                                                    Óø½ø

            Terminator power to the SCSI bus and    ÖÄÒÄ·*

              drive.                                ºøºøº

                                                    Óø½øÐ

            * Valid for single-ended drives only.

    Note: ST-12450WD (differential model) does not come with any

          provision to use Termination resistors.  Therefore, SCSI bus

          needs to be externally terminated.

                            ST-12450W

       UNFORMATTED CAPACITY (MB) ________________2437

       FORMATTED CAPACITY (512 byte sectors)_____1849

       FORMATTED CAPACITY (2048 byte sectors)____2134

           Standard OEM model formatted to 512

           bytes/block

       AVERAGE SECTORS PER TRACK ________________149 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________48,726

       CYLINDERS ________________________________2,710 user

       HEADS ______PHYSICAL/LOGICAL______________18/9

       DISCS (3.5 in) ___________________________10

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec):

         Per Logical Head _______________________68.6 to 113.0

         Per Physical Head ______________________34.3 to 56.5

       EXTERNAL TRANSFER RATE (mbyte/sec) _______20 Sync

       SPINDLE SPEED (RPM) ______________________7,200

       AVERAGE LATENCY (mSEC) ___________________4.17

       BUFFER ___________________________________1024 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 FAST WIDE

                                                 ASA

       BYTES PER TRACK __________________________99,536 average

       SECTORS PER DRIVE ________________________3,957,500

       TPI (TRACKS PER INCH) ____________________3,047

       BPI (BITS PER INCH) ______________________52,187

       AVERAGE ACCESS (ms) (read/write)__________8.0/9.0

         Drive level without controller overhead

       SINGLE TRACK SEEK (ms) ___________________0.6/0.9

       MAX FULL SEEK (ms) _______________________17/19

       MTBF (power-on hours) ____________________500,000

       SHOCK (G's):

                operating (Read/Write) __________2

                nonoperating ____________________50

       ACOUSTICS (typ/max dBA) __________________4.7/

       POWER DISSIPATION (watts/BTUs) Active ____16/54

                                      Idle ______15/51

       POWER REQUIREMENTS: +12V START-UP (amps) _2.18

                           +12V TYPICAL (amps) __0.83 idle

                           +5V START-UP (amps) __1.0

                           +5V TYPICAL (amps) ___0.76 idle

                           IDLE (watts) _________13.5

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):     1.63/41.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.97/151.6

                        Weight    (lbs/kg):     2.3/1.04

Already low-level formatted at the factory with 9 spare sectors

per cylinder and 1 spare cylinder per unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (09/18/96)


ST-125N
ST-125N SCSI

                                                 /ÄÄÄ¿

                                                 ³ O ³12

                                                 ³ O ³G

                                                 ³ O ³G

                                                 ³ O ³5

                       SCSI Connector            \ÄÄÄÙ

        ÍÍÍÍÍPÍWÍAÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍ

          o o o o o  ³::::::::::::::::::::::::1³

          o o o o o  ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾

          4 2 1 ³ P ÚÄÄÄÄÄÄ1ÚÄÄÄÄÄÄ1ÚÄÄÄÄÄÄ1

          ÄÄÂÄÄ ³ ³ ÀÄÄÄÄÄÄÙÀÄÄÄÄÄÄÙÀÄÄÄÄÄÄÙ

            ³   ³ ³    À Resistor Termination Packs

            ³   ³ ³

            ³   ³ ÀÄ Parity Check enable

            ³   ÀÄÄÄ Not Used

            ÀÄÄÄÄÄÄÄ Drive ID's, ID 0 (none) for single drive system

                          ST - 125N

       UNFORMATTED CAPACITY (MB) ________________25

       FORMATTED CAPACITY (26 SECTORS) (MB) _____21.5

       ACTUATOR TYPE ____________________________STEPPER

       TRACKS ___________________________________1,628

       CYLINDERS ________________________________407

       HEADS ____________________________________4

       DISCS ____________________________________2

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL

       TRANSFER RATE (mbits/sec) ________________7.5

       SPINDLE SPEED (RPM) ______________________3,600

       INTERFACE ________________________________SCSI

       TPI (TRACKS PER INCH) ____________________824

       BPI (BITS PER INCH) ______________________16,546

       AVERAGE ACCESS (ms) ______________________40/28*

       SINGLE TRACK SEEK (ms) ___________________8

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.0

                           +12V TYPICAL (amps) __0.35

                           +5V TYPICAL (amps) ___0.9

                           TYPICAL (watts) ______9

                           MAXIMUM (watts) ______29

       BUFFERED STEP PULSE RATE (micro sec) _____3-200

       WRITE PRECOMP (cyl) ______________________N/A (408)

       REDUCED WRITE CURRENT (cyl) ______________N/A (408)

       LANDING ZONE (cyl)________________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       *ST125-0/ST125-1

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-12550N
ST-12550N SCSI-2 Fast (Barracuda 2)

 ÉÍÍÍÍÍÍÍÍÍÍÍ»               J01ÄÄÄÄÄ¿  1Ä¿ ÄÄÄÄÄÄÄJ4-1ÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

 º REAR VIEW º              (see    1³¿ ³"³                          ³

 ÈÍÍÍÍÍÍÍÍÍÍÍ¼               below) ÀÄÙ ³"³                          ³

                                        ³"³J4 1-11                   ³

 Terminating ResistorsÄ¿                ³"³(see detail below)        ³

         ÚÄÄÄÄÄÄ¿ ÚÄÄÄÄ³Ä¿              ³"³                          ³

(TOP)    ÀÄÄÄÄÄÄ1 ÀÄÄÄÄÄÄ1              À"ÙÄJ4-11¿                   ³

      ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÑ/ÍÍÍÍÍÍÍÍÍ\     ³                   ³

     Íµ::::::::::::::::::::::::1Æ³ 0 0 0 0 ÆÍ    ³                   ³

      ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ³ÍÍÏÀÄ5ÄGÄGÄ12Ù     ³               5   1

 50 pin I/O Cable ConnectionÄÙ                   : : : : : : : : : : :

                                                 ³ ³ ³ ³ ³ ³ ³ ³ 6 ³ 2

                              SCSI ID = 0 (none) ³ ³ ³ ³ ³ ³ ³ ³ ³ ³ ³

                              SCSI ID = 4 ÄÄÄÄÄÄÄÙ ³ ³ ³ ³ ³ ³ ³ ³ ³ ³

                              SCSI ID = 2 ÄÄÄÄÄÄÄÄÄÙ ³ ³ ³ ³ ³ ³ ³ ³ ³

                              SCSI ID = 1 ÄÄÄÄÄÄÄÄÄÄÄÙ ³ ³ ³ ³ ³ ³ ³ ³

                        Reserved (default OFF) ÄÄÄÄÄÄÄÄÙ ³ ³ ³ ³ ³ ³ ³

                        Parity Disable ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ ³ ³ ³ ³ ³ ³

                        Enable Motor Start ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ ³ ³ ³ ³ ³

                        Delay Motor Start (10 sec * ID) ÄÄÄÄÄÙ ³ ³ ³ ³

                        Write Protect Enable ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ ³ ³ ³

                        Remote LED Connector ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ ³ ³

                         [pin-5 cathode (neg), pin-6 anode (pos)]  ³ ³

                        Reserved (default OFF) ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ ³

                        Spindle Synch Cable Connector ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

                          (pin-1 SSREF, pin-2 ground)

ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

³ J01 - Terminator Power Jumpers ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ                  ³

            Terminator power from the drive.       Ö1Ä2· *

              (default)                            ÓøÄø½

                                                    ø ø

            Terminator power from pin 26 on the      ÖÄ· *

              SCSI bus.                             øºøº

                                                    øÓø½

            Terminator power to the SCSI bus on     ÖÄ·

              pin 26.                               ºøºø

                                                    Óø½ø

            Terminator power to the SCSI bus and    ÖÄÒÄ·*

              drive.                                ºøºøº

                                                    Óø½øÐ

            * Valid for single-ended drives only.

    Note: ST-12550ND (differential model) does not come with any

          provision to use Termination resistors.  Therefore, SCSI bus

          needs to be externally terminated.

                            ST-12550N

       UNFORMATTED CAPACITY (MB) ________________2572

       FORMATTED CAPACITY (xx SECTORS) (MB) _____2139

       AVERAGE SECTORS PER TRACK ________________81 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________51,433

       CYLINDERS ________________________________2,707 user

       HEADS ______PHYSICAL______________________19

       DISCS (3.5 in) ___________________________10

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec)________34.3 to 56.5

       EXTERNAL TRANSFER RATE (mbyte/sec) _______4 Async

       EXTERNAL TRANSFER RATE (mbyte/sec) _______10 Sync

       SPINDLE SPEED (RPM) ______________________7,200

       AVERAGE LATENCY (mSEC) ___________________4.17

       BUFFER ___________________________________1024 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 FAST

                                                 ASA

       BYTES PER TRACK __________________________49,768 average

       SECTORS PER DRIVE ________________________4,177,781

       TPI (TRACKS PER INCH) ____________________3,047

       BPI (BITS PER INCH) ______________________52,187

       AVERAGE ACCESS (ms) (read/write)__________8.0/9.0

         Drive level without controller overhead

       SINGLE TRACK SEEK (ms) ___________________0.6/0.9

       MAX FULL SEEK (ms) _______________________17/19

       MTBF (power-on hours) ____________________500,000

       POWER DISSIPATION (watts/BTUs) Active ____16/55

                                      Idle ______15/51

       POWER REQUIREMENTS: +12V START-UP (amps) _2.18

                           +12V TYPICAL (amps) __0.83 idle

                           +5V START-UP (amps) __1.0

                           +5V TYPICAL (amps) ___0.76 idle

                           IDLE (watts) _________13

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):     1.63/41.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.97/151.6

                        Weight    (lbs/kg):     2.3/1.04

Already low-level formatted at the factory with 9 spare sectors

per cylinder and 1 spare cylinder per unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (09/18/96)


ST-12550W
ST-12550W SCSI-2 Fast Wide (Barracuda 2) (aka ST-12551N)

                                        J01ÄÄÄÄÄ¿

                                       (see    1³¿

ÉÍÍÍÍÍÍÍÍÍÍÍ»                           below) ÀÄÙ

º REAR VIEW º                                  1Ä¿ ÄÄÄÄÄÄÄÄJ4-1ÄÄÄÄ¿

ÈÍÍÍÍÍÍÍÍÍÍÍ¼                                  ³"³                 |

                                               ³"³J4 1-6           ³

                                               ³"³(see below)      |

                                               Ã"´ÄJ4-6ÄÄ¿         ³

        (TOP)                    J5            À"Ù-J4-7¿ |         |

          ___________________  ÚÄÄ  Ä1¿/ÍÍÍÍÍÍÍÍÍ\     | |         |

        Í( ×××××××××××××××××1)Í³::::::³³ 0 0 0 0 ÆÍ    ³ ³         ³

          \ÄÄÄÄÄÄÄÄÄÄÄÄ³ÄÄÄÄ/  À  ÄÄ  ÙÀÄ5ÄGÄGÄ12Ù     ³ ³         1

       68 pin I/O CableÙ        ³³³³³³                 : : : : : : :

       Connection               ³³³³³³                 ³ ³ ³ ³ ³ ³ 2

                                ³³³³³³  Reserved ÄÄÄÄÄÄÙ ³ ³ ³ ³ ³ ³

Spindle Synch Cable Connector ÄÄÙ³³³³³   (some drives do ³ ³ ³ ³ ³ ³

  (pin-11 SSREF, pin-12 ground)  ³³³³³    not have this  ³ ³ ³ ³ ³ ³

Remote LED Connector ÄÄÄÄÄÄÄÄÄÄÄÄÙ³³³³    #7 jumper)     ³ ³ ³ ³ ³ ³

 [pin-9 cathode (neg),            ³³³³  Enable Drive ÄÄÄÄÙ ³ ³ ³ ³ ³

  pin-10 anode (pos)]             ³³³³   Terminators       ³ ³ ³ ³ ³

                                  ³³³³  Reserved ÄÄÄÄÄÄÄÄÄÄÙ ³ ³ ³ ³

SCSI ID = 8 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ³³³   (default OFF)       ³ ³ ³ ³

SCSI ID = 4 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ³³  Parity Disable ÄÄÄÄÄÄÙ ³ ³ ³

SCSI ID = 2 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ³  Enable Motor Start ÄÄÄÄÙ ³ ³

SCSI ID = 1 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ  Delay Motor Start ÄÄÄÄÄÄÄÙ ³

SCSI ID = 0 (none)                       (10 sec * ID)             ³

                                        Write Protect Enable ÄÄÄÄÄÄÙ

ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

³ J01 - Terminator Power Jumpers ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ                  ³

            Terminator power from the drive.       Ö1ÄÄ· *

              (default)                            ÓøÄø½

                                                    ø ø

            Terminator power from pin 26 on the      ÖÄ· *

              SCSI bus.                             øºøº

                                                    øÓø½

            Terminator power to the SCSI bus on     ÖÄ·

              pin 26.                               ºøºø

                                                    Óø½ø

            Terminator power to the SCSI bus and    ÖÄÒÄ·*

              drive.                                ºøºøº

                                                    Óø½øÐ

            * Valid for single-ended drives only.

    Note: ST-12550WD (differential model) does not come with any

          provision to use Termination resistors.  Therefore, SCSI bus

          needs to be externally terminated.

                            ST-12550W

       UNFORMATTED CAPACITY (MB) ________________2572

       FORMATTED CAPACITY (xx SECTORS) (MB) _____2139

       AVERAGE SECTORS PER TRACK ________________81 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________51,433

       CYLINDERS ________________________________2,707 user

       HEADS ______PHYSICAL______________________19

       DISCS (3.5 in) ___________________________10

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec)________34.3 to 56.5

       EXTERNAL TRANSFER RATE (mbyte/sec) _______20 Sync

       SPINDLE SPEED (RPM) ______________________7,200

       AVERAGE LATENCY (mSEC) ___________________4.17

       BUFFER __W/WD_____________________________1024/512 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 FAST WIDE

                                                 ASA

       BYTES PER TRACK __________________________49,768 average

       SECTORS PER DRIVE ________________________4,177,781

       TPI (TRACKS PER INCH) ____________________3,047

       BPI (BITS PER INCH) ______________________52,187

       AVERAGE ACCESS (ms) (read/write)__________8.0/9.0

         Drive level without controller overhead

       SINGLE TRACK SEEK (ms) ___________________0.6/0.9

       MAX FULL SEEK (ms) _______________________17/19

       MTBF (power-on hours) ____________________500,000

       POWER DISSIPATION (watts/BTUs) Active ____16/55

                                      Idle ______15/51

       POWER REQUIREMENTS: +12V START-UP (amps) _2.18

                           +12V TYPICAL (amps) __0.83 idle

                           +5V START-UP (amps) __1.0

                           +5V TYPICAL (amps) ___0.76 idle

                           IDLE (watts) _________13

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):     1.63/41.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.97/151.6

                        Weight    (lbs/kg):     2.3/1.04

Already low-level formatted at the factory with 9 spare sectors

per cylinder and 1 spare cylinder per unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (09/18/96)


ST-138N
ST-138N SCSI

                                                 /ÄÄÄ¿

                                                 ³ O ³12

                                                 ³ O ³G

                                                 ³ O ³G

                                                 ³ O ³5

                        SCSI Connector           \ÄÄÄÙ

        ÍÍÍÍÍPÍWÍAÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍ

          o o o o o  ³::::::::::::::::::::::::1³

          o o o o o  ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾

          4 2 1 ³ P ÚÄÄÄÄÄÄ1ÚÄÄÄÄÄÄ1ÚÄÄÄÄÄÄ1

          ÄÄÂÄÄ ³ ³ ÀÄÄÄÄÄÄÙÀÄÄÄÄÄÄÙÀÄÄÄÄÄÄÙ

            ³   ³ ³    À Resistor Termination Packs

            ³   ³ ³

            ³   ³ ÀÄ Parity Check enable

            ³   ÀÄÄÄ Not Used

            ÀÄÄÄÄÄÄÄ Drive ID's, ID 0 (none) for single drive system

                          ST - 138N

       UNFORMATTED CAPACITY (MB) ________________38

       FORMATTED CAPACITY (26 SECTORS) (MB) _____32.2

       ACTUATOR TYPE ____________________________STEPPER

       TRACKS ___________________________________2,452

       CYLINDERS ________________________________615

       HEADS ____________________________________4

       DISCS ____________________________________2

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL

       TRANSFER RATE (mbits/sec) ________________7.5

       SPINDLE SPEED (RPM) ______________________3,600

       INTERFACE ________________________________SCSI

       TPI (TRACKS PER INCH) ____________________824

       BPI (BITS PER INCH) ______________________22,430

       AVERAGE ACCESS (ms) ______________________40/28*

       SINGLE TRACK SEEK (ms) ___________________8

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.0

                           +12V TYPICAL (amps) __0.35

                           +5V TYPICAL (amps) ___0.9

                           TYPICAL (watts) ______9

                           MAXIMUM (watts) ______29

       BUFFERED STEP PULSE RATE (micro sec) _____3-200

       WRITE PRECOMP (cyl) ______________________N/A (616)

       REDUCED WRITE CURRENT (cyl) ______________N/A (616)

       LANDING ZONE (cyl)________________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       *ST138R-0/ST138R-1

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-1400N
ST-1400N SCSI-2

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

         50 pin I/O Cable Connection

      ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ1¸

    J4³:::::::::::::::::::::::::³ /ÄÄÄÄÄÄÄÄÄ\

     ÍÏÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ³ 0 0 0 0 ³ÍÍ

       ÚÄÄÄÄÄÄ1 ÚÄÄÄÄÄÄ1 ÚÄÄÄÄÄÄ1 ÀÄ5ÄGÄGÄ12Ù

       ÀÄÄÄÄÄÄÙ ÀÄÄÄÂÄÄÙ ÀÄÄÄÄÄÄÙ

        ÀTerminating ResistorsÙ

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º LEFT SIDE VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

                 12345678

                ÕÍÍÍÍÍÍÍÍ¸

FRONT         J6³::::::::³                                      BACK

 OF   ÍÍÍÍÍÍÍÍÍÍÏ1ÍÍÍÍÍÍÍÏÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ  OF

DRIVE            ³³³³³³³³                                       DRIVE

     Factory Use Ù³³³³³³À Terminator Power (see below)³

     Motor Start ÄÙ³³³³ÀÄ Terminator Power (see below)ÃÄÄ¿

     Start Delay ÄÄÙ³³ÀÄÄ Reserved                       ³

   Write Protect ÄÄÄÙÀÄÄÄ Parity   ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄ¿

                                   ³ Termination Power-source Table ³

                                   ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄ¿

                                   ³ 7 8    7 8   7 8                        ³

                                   ³  ÖÄ·  ÖÄ·   ÖÄÄÄ·  A Drive Supplies Own ³

                                   ³ øºøº  ºøºø  ÓøÄø½  B Drive Supplies Bus ³

                                   ³ øÓø½  Óø½ø   ø ø   C Bus Supplies Drive ³

                                   ³  A      B     C                         ³

                                   ÔÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º RIGHT SIDE VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

           ÕÍÍ1¸

BACK     J5³:::³                                                FRONT

 OF   ÍÍÍÍÍÏÍÍÍÏÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ  OF

DRIVE       ³³³                                                 DRIVE

      ID 4 ÄÙ³ÀÄ ID 1   If these ID jumpers are used,

           ID 2         then ID jumpers shown in front

                        view ARE NOT USED.

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                          If these ID jumper are used,

       ÕÍÍÍÍÍ¸            then ID jumpers shown in right side

     J7³:::::³            view ARE NOT USED.

     ÍÍÏ1ÍÍÍÍÏÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

        ³³³³³

   ID 1 Ù³³³À Remote LED

   ID 2 ÄÙ³ÀÄ Spindle Synchronization

        ID 4

                              ST - 1400N

       UNFORMATTED CAPACITY (MB) ________________383

       FORMATTED CAPACITY (xx SECTORS) (MB) _____331*

       AVERAGE SECTORS PER TRACK ________________62

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________10,332

       CYLINDERS ________________________________1476 (user)

       HEADS ____________________________________7

       DISCS ____________________________________4

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______17 to 25

       SPINDLE SPEED (RPM) ______________________4,412

       AVERAGE LATENCY (mSEC) ___________________6.8

       BUFFER ___________________________________64 Kbyte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2

       BYTES PER TRACK __________________________28,830 avg.

       SECTORS PER DRIVE ________________________640,584

       TPI (TRACKS PER INCH) ____________________1,760

       BPI (BITS PER INCH) ______________________

       AVERAGE ACCESS (ms) ______________________14

       SINGLE TRACK SEEK (ms) ___________________2.5

       MAX FULL SEEK (ms) _______________________26

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.5

                           +12V TYPICAL (amps) __0.54

                           +5V TYPICAL (amps) ___0.53

                           TYPICAL (watts) ______9.1

                           MAXIMUM (watts) ______15

       BUFFERED STEP PULSE RATE (micro sec) _____

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl)________________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

 * 512 bytes per sector, one spare sector per track,

   two spare cylinders per unit.

Already low-level formatted at the factory.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (4/12/91)


ST-1401N
ST-1401N SCSI-2

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

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         50 pin I/O Cable Connection

      ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ1¸

    J4³:::::::::::::::::::::::::³ /ÄÄÄÄÄÄÄÄÄ\

     ÍÏÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ³ 0 0 0 0 ³ÍÍ

       ÚÄÄÄÄÄÄ1 ÚÄÄÄÄÄÄ1 ÚÄÄÄÄÄÄ1 ÀÄ5ÄGÄGÄ12Ù

       ÀÄÄÄÄÄÄÙ ÀÄÄÄÂÄÄÙ ÀÄÄÄÄÄÄÙ

        ÀTerminating ResistorsÙ

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º LEFT SIDE VIEW º

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                 12345678

                ÕÍÍÍÍÍÍÍÍ¸

FRONT         J6³::::::::³                                      BACK

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DRIVE            ³³³³³³³³                                       DRIVE

     Factory Use Ù³³³³³³À Terminator Power (see below)³

     Motor Start ÄÙ³³³³ÀÄ Terminator Power (see below)ÃÄÄ¿

     Start Delay ÄÄÙ³³ÀÄÄ Reserved                       ³

   Write Protect ÄÄÄÙÀÄÄÄ Parity   ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄ¿

                                   ³ Termination Power-source Table ³

                                   ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄ¿

                                   ³ 7 8    7 8   7 8                        ³

                                   ³  ÖÄ·  ÖÄ·          A Drive Supplies Own ³

                                   ³ øºøº  ºøºø  ÖøÄø·  B Drive Supplies Bus ³

                                   ³ øÓø½  Óø½ø  Óø ø½  C Bus Supplies Drive ³

                                   ³  A      B     C                         ³

                                   ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

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  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

           ÕÍÍ1¸

BACK     J5³:::³                                                FRONT

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DRIVE       ³³³                                                 DRIVE

      ID 4 ÄÙ³ÀÄ ID 1   If these ID jumpers are used,

           ID 2         then ID jumpers shown in front

                        view ARE NOT USED.

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                          If these ID jumper are used,

       ÕÍÍÍÍÍ¸            then ID jumpers shown in right side

     J7³:::::³            view ARE NOT USED.

     ÍÍÏ1ÍÍÍÍÏÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

        ³³³³³

   ID 1 Ù³³³À Remote LED

   ID 2 ÄÙ³ÀÄ Spindle Synchronization

        ID 4

                              ST - 1401N

       UNFORMATTED CAPACITY (MB) ________________390

       FORMATTED CAPACITY (xx SECTORS) (MB) _____338*

       AVERAGE SECTORS PER TRACK ________________66

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________9,900

       CYLINDERS ________________________________1,100 (user)

       HEADS ____________________________________9

       DISCS ____________________________________5

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______20 to 25

       SPINDLE SPEED (RPM) ______________________4,412

       AVERAGE LATENCY (mSEC) ___________________6.8

       BUFFER ___________________________________64 Kbyte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2

       BYTES PER TRACK __________________________39,394 avg.

       SECTORS PER DRIVE ________________________653,400

       TPI (TRACKS PER INCH) ____________________1760

       BPI (BITS PER INCH) ______________________

       AVERAGE ACCESS (ms) ______________________12

       SINGLE TRACK SEEK (ms) ___________________2.5

       MAX FULL SEEK (ms) _______________________24

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.5

                           +12V TYPICAL (amps) __0.7

                           +5V TYPICAL (amps) ___0.7

                           TYPICAL (watts) ______9.1

                           MAXIMUM (watts) ______15

       BUFFERED STEP PULSE RATE (micro sec) _____

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl)________________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

 * 512 bytes per sector, one spare sector per track,

   two spare cylinders per unit.

Already low-level formatted at the factory.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (4/12/91)


ST-14207N
ST-14207N SCSI-2 Fast, (Cayman CFP4207S)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

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                  50 pin I/O Cable Connection J2

                  ³

               ÕÍÍÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

             ÍÍµ::::::::::::::::::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

             J1ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                ÚÄÄTResÄÄ1    ÚÄÄTResÄÄ1

                ÀÄÄÄÄÄÄÄÄÙ    ÀÄÄÄÄÄÄÄÄÙ

                          oÂoÎFuse        o o   ÄÄÄÄ Parity Disable

                           ³              o o   ÄÄÄÄ Delay Spin

               Term Power ÄÙ              o o   ÄÄÄÄ Disable Spin

        Open = Power from drive           o o   ÄÄÄÄ Reserved

      Closed = Power from interface       o o   ÄÄÄÄ ID 4

                                          o o   ÄÄÄÄ ID 2

                                          o o   ÄÄÄÄ ID 1

                                             J7      ID 0 = no ID jumpers

    ST-14207N

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

               ÚÄÄÄÄÄÄÄÄÄÄÄÄÄ Disable Spin

               ³ ÚÄÄÄÄÄÄÄÄÄÄÄ Reserved

               ³ ³   ÚÄÄÄÄÄÄÄ SCSI ID's (none for ID0)

  (TOP)        ³ ³   ³

               ³ ³ ÚÄÁÄ¿          J3

               ³ ³ 4 2 1

               o o o o o    o o o o o   o o

             Í o o o o oÍÍÍ   o o o o   o o ÍÍÍÍÍÍÍÍPWAÍÍÍÍÍÍÍÍÍÍ

                            ³ ÀÄÄÂÄÄÙ   ³ ³

  (BOTTOM)      J6          ³    ³      ³ ÀÄÄ Spindle Synch

                            ³    ³      ÀÄÄÄÄ LED Driver

                            ³    ÀÄÄÄÄÄÄÄÄÄÄÄ Reserved

                            ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ pin removed

                            ST-14207N Cayman

       FORMATTED CAPACITY (MB) __________________4220

       AVERAGE SECTORS PER TRACK ________________105 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________78,480

       CYLINDERS ________________________________3924 user

       HEADS ______PHYSICAL______________________20

       DISCS (3.5 in) ___________________________10

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec)________48.7 to 87.4

       EXTERNAL TRANSFER RATE (mbyte/sec) _______10 Sync

       SPINDLE SPEED (RPM) ______________________7,200

       AVERAGE LATENCY (mSEC) ___________________4.17

       BUFFER ___________________________________512 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 Fast

       BYTES PER TRACK (avg) ____________________

       SECTORS PER DRIVE ________________________

       TPI (TRACKS PER INCH) ____________________4055

       BPI (BITS PER INCH) ______________________78K

       AVERAGE ACCESS (ms) (read/write)__________9.0/9.5

       SINGLE TRACK SEEK (ms) ___________________2

       MAX FULL SEEK (ms) _______________________18

       MTBF (power-on hours) ____________________1,000,000

       SHOCK (G's):

                operating (Read/Write) __________5

                nonoperating ____________________75

       ACOUSTICS (typ/max dBA) __________________<46/

       POWER REQUIREMENTS: +12V START-UP (amps) _2.5

                           +12V TYPICAL (amps) __.85

                           +5V START-UP (amps) __.88

                           +5V TYPICAL (amps) ___.50

                           IDLE (watts) _________12.7

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):     1.62/41.2

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.75/146.1

                        Weight    (lbs/kg):      2.0/0.91

Already low-level formatted at the factory with x spare sectors

per cylinder and x spare cylinder per unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (09/09/96)


ST-14207W
ST-14207W SCSI-2 Fast Wide, (Cayman CFP4207W)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»                         ÚÄÄÄÄ ID 8  Auxilary

  º REAR VIEW º                         ³ÚÄÄÄ ID 4

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼                         ³³ÚÄÄ ID 2

                        (TOP)           ³³³ÚÄ ID 1

                 68 pin I/O Cable       ³³³³

                ___________________  ÚÄÄ  Ä1¿/ÍÍÍÍÍÍÍÍÍ\

              Í( ×××××××××××××××××1)Í³::::::³³ 0 0 0 0 ÆÍ

                \ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ/  À  ÄÄ  ÙÀÄ5ÄGÄGÄ12Ù

                 ÚÄÄTResÄÄ1         ÚÄÄTResÄÄ1

                 ÀÄÄÄÄÄÄÄÄÙ   oÂoÎ  ÀÄÄÄÄÄÄÄÄÙ

                 ÚÄÄTResÄÄ1    ³ Fuse

                 ÀÄÄÄÄÄÄÄÄÙ    ³                      (back)

                               ³

                               ³           o o   ÄÄÄÄ Parity Disable

                 Term Power ÄÄÄÙ           o o   ÄÄÄÄ Delay Spin

          Open = Power from drive          o o   ÄÄÄÄ Disable Spin

        Closed = Power from interface      o o   ÄÄÄÄ ID 8

                                           o o   ÄÄÄÄ ID 4

                                           o o   ÄÄÄÄ ID 2

                                           o o   ÄÄÄÄ ID 1

                                              J7      ID 0 = no ID jumpers

    ST-14207W

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»                                    (front)

  º  Front View  º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

  (TOP)

                              J3

                        o o o o o   o o

               ÍÍÍÍÍÍÍÍ   o o o o   o o ÍÍÍÍÍÍÍÍPWAÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                        ³ ÀÄÄÂÄÄÙ   ³ ³

  (BOTTOM)              ³    ³      ³ ÀÄÄ Spindle Synch

                        ³    ³      ÀÄÄÄÄ LED Driver

                        ³    ÀÄÄÄÄÄÄÄÄÄÄÄ Reserved

                        ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ pin removed

                            ST-14207W Cayman

       FORMATTED CAPACITY (MB) __________________4220

       AVERAGE SECTORS PER TRACK ________________105 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________78,480

       CYLINDERS ________________________________3924 user

       HEADS ______PHYSICAL______________________20

       DISCS (3.5 in) ___________________________10

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec)________48.7 to 87.4

       EXTERNAL TRANSFER RATE (mbyte/sec) _______20 Sync

       SPINDLE SPEED (RPM) ______________________7,200

       AVERAGE LATENCY (mSEC) ___________________4.17

       BUFFER ___________________________________512 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 Fast Wide

       BYTES PER TRACK (avg) ____________________

       SECTORS PER DRIVE ________________________

       TPI (TRACKS PER INCH) ____________________4055

       BPI (BITS PER INCH) ______________________78K

       AVERAGE ACCESS (ms) (read/write)__________9.0/9.5

       SINGLE TRACK SEEK (ms) ___________________2

       MAX FULL SEEK (ms) _______________________18

       MTBF (power-on hours) ____________________1,000,000

       SHOCK (G's):

                operating (Read/Write) __________5

                nonoperating ____________________75

       ACOUSTICS (typ/max dBA) __________________<46/

       POWER REQUIREMENTS: +12V START-UP (amps) _2.5

                           +12V TYPICAL (amps) __.85

                           +5V START-UP (amps) __.88

                           +5V TYPICAL (amps) ___.50

                           IDLE (watts) _________12.7

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):     1.62/41.2

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.75/146.1

                        Weight    (lbs/kg):      2.0/0.91

Already low-level formatted at the factory with x spare sectors

per cylinder and x spare cylinder per unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (09/09/96)


ST-14209N
ST-14209N Ultra-SCSI (Cayman CFP4207SU)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                  50 pin I/O Cable Connection J2

                  ³

               ÕÍÍÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

             ÍÍµ::::::::::::::::::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

             J1ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                ÚÄÄTResÄÄ1    ÚÄÄTResÄÄ1

                ÀÄÄÄÄÄÄÄÄÙ    ÀÄÄÄÄÄÄÄÄÙ

                          oÂoÎFuse        o o   ÄÄÄÄ Parity Disable

                           ³              o o   ÄÄÄÄ Delay Spin

               Term Power ÄÙ              o o   ÄÄÄÄ Disable Spin

        Open = Power from drive           o o   ÄÄÄÄ Reserved

      Closed = Power from interface       o o   ÄÄÄÄ ID 4

                                          o o   ÄÄÄÄ ID 2

                                          o o   ÄÄÄÄ ID 1

                                             J7      ID 0 = no ID jumpers

    ST-14209N

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

               ÚÄÄÄÄÄÄÄÄÄÄÄÄÄ Disable Spin

               ³ ÚÄÄÄÄÄÄÄÄÄÄÄ Reserved

               ³ ³   ÚÄÄÄÄÄÄÄ SCSI ID's (none for ID0)

  (TOP)        ³ ³   ³

               ³ ³ ÚÄÁÄ¿          J3

               ³ ³ 4 2 1

               o o o o o    o o o o o   o o

             Í o o o o oÍÍÍ   o o o o   o o ÍÍÍÍÍÍÍÍPWAÍÍÍÍÍÍÍÍÍÍ

                            ³ ÀÄÄÂÄÄÙ   ³ ³

  (BOTTOM)      J6          ³    ³      ³ ÀÄÄ Spindle Synch

                            ³    ³      ÀÄÄÄÄ LED Driver

                            ³    ÀÄÄÄÄÄÄÄÄÄÄÄ Reserved

                            ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ pin removed

                            ST-14209N Cayman

       FORMATTED CAPACITY (MB) __________________4220

       AVERAGE SECTORS PER TRACK ________________105 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________78,480

       CYLINDERS ________________________________3924 user

       HEADS ______PHYSICAL______________________20

       DISCS (3.5 in) ___________________________10

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec)________48.7 to 87.4

       EXTERNAL TRANSFER RATE (mbyte/sec) _______20 Sync

       SPINDLE SPEED (RPM) ______________________7,200

       AVERAGE LATENCY (mSEC) ___________________4.17

       BUFFER ___________________________________512 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________Ultra-SCSI

       BYTES PER TRACK (avg) ____________________

       SECTORS PER DRIVE ________________________

       TPI (TRACKS PER INCH) ____________________4055

       BPI (BITS PER INCH) ______________________78K

       AVERAGE ACCESS (ms) (read/write)__________9.0/9.5

       SINGLE TRACK SEEK (ms) ___________________2

       MAX FULL SEEK (ms) _______________________18

       MTBF (power-on hours) ____________________1,000,000

       SHOCK (G's):

                operating (Read/Write) __________5

                nonoperating ____________________75

       ACOUSTICS (typ/max dBA) __________________<46/

       POWER REQUIREMENTS: +12V START-UP (amps) _2.5

                           +12V TYPICAL (amps) __.85

                           +5V START-UP (amps) __.88

                           +5V TYPICAL (amps) ___.50

                           IDLE (watts) _________12.7

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):     1.62/41.2

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.75/146.1

                        Weight    (lbs/kg):      2.0/0.91

Already low-level formatted at the factory with x spare sectors

per cylinder and x spare cylinder per unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (09/11/96)


ST-14209W
ST-14209W Ultra-SCSI Wide, (Cayman CFP4207WU)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»                         ÚÄÄÄÄ ID 8  Auxilary

  º REAR VIEW º                         ³ÚÄÄÄ ID 4

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼                         ³³ÚÄÄ ID 2

                        (TOP)           ³³³ÚÄ ID 1

                 68 pin I/O Cable       ³³³³

                ___________________  ÚÄÄ  Ä1¿/ÍÍÍÍÍÍÍÍÍ\

              Í( ×××××××××××××××××1)Í³::::::³³ 0 0 0 0 ÆÍ

                \ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ/  À  ÄÄ  ÙÀÄ5ÄGÄGÄ12Ù

                 ÚÄÄTResÄÄ1         ÚÄÄTResÄÄ1

                 ÀÄÄÄÄÄÄÄÄÙ   oÂoÎ  ÀÄÄÄÄÄÄÄÄÙ

                 ÚÄÄTResÄÄ1    ³ Fuse

                 ÀÄÄÄÄÄÄÄÄÙ    ³                      (back)

                               ³

                               ³           o o   ÄÄÄÄ Parity Disable

                 Term Power ÄÄÄÙ           o o   ÄÄÄÄ Delay Spin

          Open = Power from drive          o o   ÄÄÄÄ Disable Spin

        Closed = Power from interface      o o   ÄÄÄÄ ID 8

                                           o o   ÄÄÄÄ ID 4

                                           o o   ÄÄÄÄ ID 2

                                           o o   ÄÄÄÄ ID 1

                                              J7      ID 0 = no ID jumpers

    ST-14209W

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»                                    (front)

  º  Front View  º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

  (TOP)

                              J3

                        o o o o o   o o

               ÍÍÍÍÍÍÍÍ   o o o o   o o ÍÍÍÍÍÍÍÍPWAÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                        ³ ÀÄÄÂÄÄÙ   ³ ³

  (BOTTOM)              ³    ³      ³ ÀÄÄ Spindle Synch

                        ³    ³      ÀÄÄÄÄ LED Driver

                        ³    ÀÄÄÄÄÄÄÄÄÄÄÄ Reserved

                        ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ pin removed

                            ST-14209W Cayman

       FORMATTED CAPACITY (MB) __________________4220

       AVERAGE SECTORS PER TRACK ________________105 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________78,480

       CYLINDERS ________________________________3924 user

       HEADS ______PHYSICAL______________________20

       DISCS (3.5 in) ___________________________10

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec)________48.7 to 87.4

       EXTERNAL TRANSFER RATE (mbyte/sec) _______40 Sync

       SPINDLE SPEED (RPM) ______________________7,200

       AVERAGE LATENCY (mSEC) ___________________4.17

       BUFFER ___________________________________512 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________Ultra-SCSI Wide

       BYTES PER TRACK (avg) ____________________

       SECTORS PER DRIVE ________________________

       TPI (TRACKS PER INCH) ____________________4055

       BPI (BITS PER INCH) ______________________78K

       AVERAGE ACCESS (ms) (read/write)__________9.0/9.5

       SINGLE TRACK SEEK (ms) ___________________2

       MAX FULL SEEK (ms) _______________________18

       MTBF (power-on hours) ____________________1,000,000

       SHOCK (G's):

                operating (Read/Write) __________5

                nonoperating ____________________75

       ACOUSTICS (typ/max dBA) __________________<46/

       POWER REQUIREMENTS: +12V START-UP (amps) _2.5

                           +12V TYPICAL (amps) __.85

                           +5V START-UP (amps) __.88

                           +5V TYPICAL (amps) ___.50

                           IDLE (watts) _________12.7

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):     1.62/41.2

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.75/146.1

                        Weight    (lbs/kg):      2.0/0.91

Already low-level formatted at the factory with x spare sectors

per cylinder and x spare cylinder per unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (09/11/96)


ST-1480N
ST-1480N SCSI-2

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

         50 pin I/O Cable Connection

      ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ1¸

    J4³:::::::::::::::::::::::::³ /ÄÄÄÄÄÄÄÄÄ\

     ÍÏÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ³ 0 0 0 0 ³ÍÍ

       ÚÄÄÄÄÄÄ1 ÚÄÄÄÄÄÄ1 ÚÄÄÄÄÄÄ1 ÀÄ5ÄGÄGÄ12Ù

       ÀÄÄÄÄÄÄÙ ÀÄÄÄÂÄÄÙ ÀÄÄÄÄÄÄÙ

        ÀTerminating ResistorsÙ

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º LEFT SIDE VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

                 12345678

                ÕÍÍÍÍÍÍÍÍ¸

FRONT         J6³::::::::³                                      BACK

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DRIVE            ³³³³³³³³                                       DRIVE

     Factory Use Ù³³³³³³À Terminator Power (see below)³

     Motor Start ÄÙ³³³³ÀÄ Terminator Power (see below)ÃÄÄ¿

     Start Delay ÄÄÙ³³ÀÄÄ Reserved                       ³

   Write Protect ÄÄÄÙÀÄÄÄ Parity   ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄ¿

                                   ³ Termination Power-source Table ³

                                   ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄ¿

                                   ³ 7 8    7 8   7 8                        ³

                                   ³  ÖÄ·  ÖÄ·   ÖÄÄÄ·  A Drive Supplies Own ³

                                   ³ øºøº  ºøºø  ÓøÄø½  B Drive Supplies Bus ³

                                   ³ øÓø½  Óø½ø   ø ø   C Bus Supplies Drive ³

                                   ³  A      B     C                         ³

                                   ÔÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º RIGHT SIDE VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

           ÕÍÍ1¸

BACK     J5³:::³                                                FRONT

 OF   ÍÍÍÍÍÏÍÍÍÏÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ  OF

DRIVE       ³³³                                                 DRIVE

      ID 4 ÄÙ³ÀÄ ID 1   If these ID jumpers are used,

           ID 2         then ID jumpers shown in front

                        view ARE NOT USED.

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                          If these ID jumper are used,

       ÕÍÍÍÍÍ¸            then ID jumpers shown in right side

     J7³:::::³            view ARE NOT USED.

     ÍÍÏ1ÍÍÍÍÏÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

        ³³³³³

   ID 1 Ù³³³À Remote LED

   ID 2 ÄÙ³ÀÄ Spindle Synchronization

        ID 4

                              ST - 1480N

       UNFORMATTED CAPACITY (MB) ________________492

       FORMATTED CAPACITY (xx SECTORS) (MB) _____426*

       AVERAGE SECTORS PER TRACK ________________62

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________13,302

       CYLINDERS ________________________________1476 (user)

       HEADS ____________________________________9

       DISCS ____________________________________5

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR

       INTERNAL TRANSFER RATE (mbits/sec) _______17 to 25

       SPINDLE SPEED (RPM) ______________________4,412

       AVERAGE LATENCY (mSEC) ___________________6.8

       BUFFER ___________________________________64 Kbyte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2

       BYTES PER TRACK __________________________37,037 avg

       SECTORS PER DRIVE ________________________823,608

       TPI (TRACKS PER INCH) ____________________1760

       BPI (BITS PER INCH) ______________________

       AVERAGE ACCESS (ms) ______________________14

       SINGLE TRACK SEEK (ms) ___________________2.5

       MAX FULL SEEK (ms) _______________________26

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.5

                           +12V TYPICAL (amps) __0.54

                           +5V TYPICAL (amps) ___0.53

                           TYPICAL (watts) ______9.1

                           MAXIMUM (watts) ______15

       BUFFERED STEP PULSE RATE (micro sec) _____

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl)________________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

 * 512 bytes per sector, one spare sector per track,

   two spare cylinders per unit.

Already low-level formatted at the factory.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (4/12/91)


ST-1481N
ST-1481N SCSI-2 Fast

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

         50 pin I/O Cable Connection

      ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ1¸

    J4³:::::::::::::::::::::::::³ /ÄÄÄÄÄÄÄÄÄ\

     ÍÏÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ³ 0 0 0 0 ³ÍÍ

       ÚÄÄÄÄÄÄ1 ÚÄÄÄÄÄÄ1 ÚÄÄÄÄÄÄ1 ÀÄ5ÄGÄGÄ12Ù

       ÀÄÄÄÄÄÄÙ ÀÄÄÄÂÄÄÙ ÀÄÄÄÄÄÄÙ

        ÀTerminating ResistorsÙ

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º LEFT SIDE VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

                 12345678

                ÕÍÍÍÍÍÍÍÍ¸

FRONT         J6³::::::::³                                      BACK

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DRIVE            ³³³³³³³³                                       DRIVE

     Factory Use Ù³³³³³³À Terminator Power (see below)³

     Motor Start ÄÙ³³³³ÀÄ Terminator Power (see below)ÃÄÄ¿

     Start Delay ÄÄÙ³³ÀÄÄ Reserved                       ³

   Write Protect ÄÄÄÙÀÄÄÄ Parity   ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄ¿

                                   ³ Termination Power-source Table ³

                                   ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄ¿

                                   ³ 7 8    7 8   7 8                        ³

                                   ³  ÖÄ·  ÖÄ·   ÖÄÄÄ·  A Drive Supplies Own ³

                                   ³ øºøº  ºøºø  ÓøÄø½  B Drive Supplies Bus ³

                                   ³ øÓø½  Óø½ø   ø ø   C Bus Supplies Drive ³

                                   ³  A      B     C                         ³

                                   ÔÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º RIGHT SIDE VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

           ÕÍÍ1¸

BACK     J5³:::³                                                FRONT

 OF   ÍÍÍÍÍÏÍÍÍÏÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ  OF

DRIVE       ³³³                                                 DRIVE

      ID 4 ÄÙ³ÀÄ ID 1   If these ID jumpers are used,

           ID 2         then ID jumpers shown in front

                        view ARE NOT USED.

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                          If these ID jumper are used,

       ÕÍÍÍÍÍ¸            then ID jumpers shown in right side

     J7³:::::³            view ARE NOT USED.

     ÍÍÏ1ÍÍÍÍÏÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

        ³³³³³

   ID 1 Ù³³³À Remote LED

   ID 2 ÄÙ³ÀÄ Spindle Synchronization

        ID 4

                              ST - 1481N

       UNFORMATTED CAPACITY (MB) ________________492

       FORMATTED CAPACITY (xx SECTORS) (MB) _____426

       AVERAGE SECTORS PER TRACK ________________62

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________13,302

       CYLINDERS ________________________________1,476

       HEADS ____________________________________9

       DISCS (3.5 in) ___________________________5

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______17 to 25

       SPINDLE SPEED (RPM) ______________________4,412

       AVERAGE LATENCY (mSEC) ___________________6.8

       BUFFER ___________________________________256 Kbyte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 Fast

       SECTORS PER DRIVE ________________________823,608

       TPI (TRACKS PER INCH) ____________________1760

       BPI (BITS PER INCH) ______________________

       AVERAGE ACCESS (ms) ______________________14

       SINGLE TRACK SEEK (ms) ___________________2.5

       MAX FULL SEEK (ms) _______________________26

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.5

                           +12V TYPICAL (amps) __0.54

                           +5V TYPICAL (amps) ___0.53/0.8(ND)

                           TYPICAL (watts) ______9/11.0(ND)

                           MAXIMUM (watts) ______15

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl)________________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

Already low-level formatted at the factory.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (4/12/91)


ST-15150N
ST-15150N SCSI-2 Fast (Barracuda 4)

 ÉÍÍÍÍÍÍÍÍÍÍÍ»               J01ÄÄÄÄÄ¿  1Ä¿ ÄÄÄÄÄÄÄJ4-1ÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

 º REAR VIEW º              (see   ÚÄ³¿ ³"³                          ³

 ÈÍÍÍÍÍÍÍÍÍÍÍ¼               below)ÀÄÄÙ ³"³                          ³

                                        ³"³J4 1-11                   ³

                                        ³"³(see detail below)        ³

                                        ³"³                          ³

(TOP)                                   À"ÙÄJ4-11¿                   ³

      ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÑ/ÍÍÍÍÍÍÍÍÍ\     ³                   ³

     Íµ::::::::::::::::::::::::1Æ³ 0 0 0 0 ÆÍ    ³                   ³

      ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ³ÍÍÏÀÄ5ÄGÄGÄ12Ù     ³               5   1

 50 pin I/O Cable ConnectionÄÙ                   : : : : : : : : : : :

                                                 ³ ³ ³ ³ ³ ³ ³ ³ 6 ³ 2

                              SCSI ID = 0 (none) ³ ³ ³ ³ ³ ³ ³ ³ ³ ³ ³

                              SCSI ID = 4 ÄÄÄÄÄÄÄÙ ³ ³ ³ ³ ³ ³ ³ ³ ³ ³

                              SCSI ID = 2 ÄÄÄÄÄÄÄÄÄÙ ³ ³ ³ ³ ³ ³ ³ ³ ³

                              SCSI ID = 1 ÄÄÄÄÄÄÄÄÄÄÄÙ ³ ³ ³ ³ ³ ³ ³ ³

                        Reserved (default OFF) ÄÄÄÄÄÄÄÄÙ ³ ³ ³ ³ ³ ³ ³

                        Parity Disable ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ ³ ³ ³ ³ ³ ³

                        Enable Motor Start ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ ³ ³ ³ ³ ³

                        Delay Motor Start (10 sec * ID) ÄÄÄÄÄÙ ³ ³ ³ ³

                        Write Protect Enable ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ ³ ³ ³

                        Remote LED Connector ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ ³ ³

                         [pin-5 cathode (neg), pin-6 anode (pos)]  ³ ³

                        Reserved (default OFF) ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ ³

                        Spindle Synch Cable Connector ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

                          (pin-1 SSREF, pin-2 ground)

          ÚÄ ST-15150N only ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

          ³ J01 - Terminator Power 2x3 jumper block ³

          ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

                                                    2ÕÍ¸

            Enable Drive Terminators                 ³ø³ø ø

                                                    1Ôø¾ø ø

            Terminator power from the drive.           ÕÍÍÍ¸

              (default)                               øÔøÍø¾

                                                     1ø ø ø

            Terminator power from pin 26 on the          ÕÍ¸

              SCSI bus.                               ø ø³ø³

                                                     1ø øÔø¾

            Terminator power to the SCSI bus on        ÕÍ¸

              pin 26.                                 ø³ø³ø

                                                     1øÔø¾ø

            Terminator power to the SCSI bus and       ÕÍÑÍ¸

              drive.                                  ø³ø³ø³

                                                     1øÔøÏø¾

    Note: ST-15150ND (differential model) does not come with any

          provision to use Termination resistors.  Therefore, SCSI bus

          needs to be externally terminated.

          ÚÄ ST-15150ND only ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

          ³ J01 - Terminator Power 2x2 jumper block ³

          ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

                                                    1ÕÍ¸ 2

            Terminator to the SCSI bus on pin 26.    ³ø³ø

            (all other J01 jumper positions are      Ôø¾ø

             invalid)

                            ST-15150N

       UNFORMATTED CAPACITY (MB) ________________5062

       FORMATTED CAPACITY (xx SECTORS) (MB) _____4294

       AVERAGE SECTORS PER TRACK ________________107 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________77,931

       CYLINDERS ________________________________3,711 user

       HEADS ______PHYSICAL______________________21

       DISCS (3.5 in) ___________________________11

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec)________47.4 to 71.9

       EXTERNAL TRANSFER RATE (mbyte/sec) _______4 Async

       EXTERNAL TRANSFER RATE (mbyte/sec) _______10 Sync

       SPINDLE SPEED (RPM) ______________________7,200

       AVERAGE LATENCY (mSEC) ___________________4.17

       BUFFER ___________________________________1024 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 FAST

                                                 ASA II

       BYTES PER TRACK __________________________64,773 average

       SECTORS PER DRIVE ________________________8,388,315

       TPI (TRACKS PER INCH) ____________________4,048

       BPI (BITS PER INCH) ______________________73,820

       AVERAGE ACCESS (ms) (read/write)__________8.0/9.0

         Drive level without controller overhead

       SINGLE TRACK SEEK (ms) ___________________0.6/0.9

       MAX FULL SEEK (ms) _______________________17/19

       MTBF (power-on hours) ____________________800,000

       SHOCK (G's):

                operating (Read/Write) __________2

                nonoperating ____________________50

       ACOUSTICS (typ/max dBA) __________________4.7/

       POWER DISSIPATION (watts/BTUs) Active ____15/51

                                      Idle ______12/41

       POWER REQUIREMENTS: +12V START-UP (amps) _2.18

                           +12V TYPICAL (amps) __0.83 idle

                           +5V START-UP (amps) __1.0

                           +5V TYPICAL (amps) ___0.76 idle

                           IDLE (watts) _________14

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):     1.63/41.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.97/151.6

                        Weight    (lbs/kg):     2.3/1.04

Already low-level formatted at the factory with 9 spare sectors

per cylinder and 1 spare cylinder per unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (09/18/96)


ST-15150W
ST-15150W SCSI-2 Fast Wide (Barracuda 4)

                                        J01ÄÄÄÄÄ¿

                                       (see    1³¿

ÉÍÍÍÍÍÍÍÍÍÍÍ»                           below) ÀÄÙ

º REAR VIEW º                                  1Ä¿ ÄÄÄÄÄÄÄÄJ4-1ÄÄÄÄ¿

ÈÍÍÍÍÍÍÍÍÍÍÍ¼                                  ³"³                 |

                                               ³"³J4 1-6           ³

                                               ³"³(see below)      |

                                               Ã"´ÄJ4-6ÄÄ¿         ³

        (TOP)                    J5            À"Ù-J4-7¿ |         |

          ___________________  ÚÄÄ  Ä1¿/ÍÍÍÍÍÍÍÍÍ\     | |         |

        Í( ×××××××××××××××××1)Í³::::::³³ 0 0 0 0 ÆÍ    ³ ³         ³

          \ÄÄÄÄÄÄÄÄÄÄÄÄ³ÄÄÄÄ/  À  ÄÄ  ÙÀÄ5ÄGÄGÄ12Ù     ³ ³         1

       68 pin I/O CableÙ        ³³³³³³                 : : : : : : :

       Connection               ³³³³³³                 ³ ³ ³ ³ ³ ³ 2

                                ³³³³³³  Reserved ÄÄÄÄÄÄÙ ³ ³ ³ ³ ³ ³

Spindle Synch Cable Connector ÄÄÙ³³³³³   (some drives do ³ ³ ³ ³ ³ ³

  (pin-11 SSREF, pin-12 ground)  ³³³³³    not have this  ³ ³ ³ ³ ³ ³

Remote LED Connector ÄÄÄÄÄÄÄÄÄÄÄÄÙ³³³³    #7 jumper)     ³ ³ ³ ³ ³ ³

 [pin-9 cathode (neg),            ³³³³  Enable Drive ÄÄÄÄÙ ³ ³ ³ ³ ³

  pin-10 anode (pos)]             ³³³³   Terminators       ³ ³ ³ ³ ³

                                  ³³³³  Reserved ÄÄÄÄÄÄÄÄÄÄÙ ³ ³ ³ ³

SCSI ID = 8 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ³³³   (default OFF)       ³ ³ ³ ³

SCSI ID = 4 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ³³  Parity Disable ÄÄÄÄÄÄÙ ³ ³ ³

SCSI ID = 2 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ³  Enable Motor Start ÄÄÄÄÙ ³ ³

SCSI ID = 1 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ  Delay Motor Start ÄÄÄÄÄÄÄÙ ³

SCSI ID = 0 (none)                       (10 sec * ID)             ³

                                        Write Protect Enable ÄÄÄÄÄÄÙ

ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

³ J01 - Terminator Power Jumpers ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ                  ³

            Terminator power from the drive.       Ö1ÄÄ· *

              (default)                            ÓøÄø½

                                                    ø ø

            Terminator power from pin 26 on the      ÖÄ· *

              SCSI bus.                             øºøº

                                                    øÓø½

            Terminator power to the SCSI bus on     ÖÄ·

              pin 26.                               ºøºø

                                                    Óø½ø

            Terminator power to the SCSI bus and    ÖÄÒÄ·*

              drive.                                ºøºøº

                                                    Óø½øÐ

            * Valid for single ended drives only.

    Note: ST-15150WD (differential model) does not come with any

          provision to use Termination resistors.  Therefore, SCSI bus

          needs to be externally terminated.

 ÉÍÍÍÍÍÍÍÍÍÍÍ»

 º REAR VIEW º  (ST-15150WC only)

 ÈÍÍÍÍÍÍÍÍÍÍÍ¼  J4 Drive Options select:

 pin 1  - ID0             pin 2  - Fault ÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

     3  - ID1                 4  - Vendor Unique     1Ä2   J4 option select

     5  - ID2                 6  - Spindle Synch     Ã"´   jumper connectors

     7  - ID3                 8  - Activity LED      Ã"´

     9  - No connection       10 - +5v               Ã"´

     15 - Ground              16 - Write Protect     Ã"´

     19 - Parity Enable       20 - Ground            Ã"´

     11,12,13,14,17,18,21,22     - Reserved          Ã"´

                                                     Ã"´

      TOP (HDA)   J6   (/ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ1\)       À"22

            ÍÍÍÍÍÍÍÍÍÍ Í\×××××××××××××××××××/ÍÍÍÍÍÍÍÍÍÍÍ

      BOTTOM             ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ41

                  80 pin I/O and DC Power Wall/bracket

                  SCA-2 (Single Connector Attachment)

    Notes on 80 pin I/O connector:

      pins  1 -  4 = +12v        41 - 44 = 12v GND

           34 - 36 = +5v         74 - 76 = 5v GND

                37 = SYNC             77 = LEDC

                38 = MTRON            78 = DLYDST

                39 = SCSIA0           79 = SCSIA1

                40 = SCSIA2           80 = SCSIA3

 Mating WC connector: AMP US p/n: 2-557103-1 straight-in, Male 80-pin

                                  2-557101-1 right angle to PCB

                            ST-15150W

       UNFORMATTED CAPACITY (MB) ________________5048

       FORMATTED CAPACITY (xx SECTORS) (MB) _____4294

       AVERAGE SECTORS PER TRACK ________________107 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________77,931

       CYLINDERS ________________________________3,711 user

       HEADS ______PHYSICAL______________________21

       DISCS (3.5 in) ___________________________11

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec)________47.4 to 71.9

       EXTERNAL TRANSFER RATE (mbyte/sec) _______20 Sync

       SPINDLE SPEED (RPM) ______________________7,200

       AVERAGE LATENCY (mSEC) ___________________4.17

       BUFFER ___________________________________1024 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 FAST WIDE

                                                 ASA II

       BYTES PER TRACK __________________________64,773 average

       SECTORS PER DRIVE ________________________8,388,315

       TPI (TRACKS PER INCH) ____________________4,048

       BPI (BITS PER INCH) ______________________52,187

       AVERAGE ACCESS (ms) (read/write)__________8.0/9.0

         Drive level without controller overhead

       SINGLE TRACK SEEK (ms) ___________________0.6/0.9

       MAX FULL SEEK (ms) _______________________17/19

       MTBF (power-on hours) ____________________800,000

       POWER DISSIPATION (watts/BTUs) Active ____15/51

                                      Idle ______12/41

       POWER REQUIREMENTS: +12V START-UP (amps) _2.18

                           +12V TYPICAL (amps) __0.83 idle

                           +5V START-UP (amps) __1.0

                           +5V TYPICAL (amps) ___0.76 idle

                           IDLE (watts) _________14

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):     1.63/41.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.97/151.6

                        Weight    (lbs/kg):     2.3/1.04

Already low-level formatted at the factory with 9 spare sectors

per cylinder and 1 spare cylinder per unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (05/20/96)


ST-15230N
ST-15230N SCSI-2 Fast (Hawk 4)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-15230N only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

         50 pin I/O Cable Connection

         ³

    J1ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ1¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     Íµ:::::::::::::::::::::::::ÆÍ³ 0 0 0 0 ³ÍÍ

      ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-15230NC only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                     80 pin I/O and DC Power Connection

                     ³

    J1          /ÄÄÄÄ³ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ\      TOP (HDA)

     ÍÍÍÍÍÍÍÍÍÍ/ ×××××××××××××××××××× \ÍÍÍÍÍÍÍÍÍÍ

              (\Ä1ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ40/)    BOTTOM

     Notes on 80 pin I/O connector:

       pins  1 -  4 = +12v        41 - 44 = 12v GND

            34 - 36 = +5v         74 - 76 = 5v GND

                 37 = SYNC             77 = LEDC

                 38 = MTRON            78 = DLYDST

                 39 = SCSIA0           79 = SCSIA1

                 40 = SCSIA2           80 = SCSIA3

  Mating NC connector: AMP US p/n: 2-557103-1 straight-in, Male 80-pin

                                   2-557101-1 right angle to PCB

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º RIGHT SIDE VIEW º  (Both ST-15230N and ST-15230NC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Enable T-Res

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)

  ³         Reserved ÄÄÙ³³ÀÄÄ Motor Start

  ³    Parity Enable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍÍ          ³

    ³                                              ³

    ³  1 2     1 2      1 2                        ³

    ³ ÖÄ·       ÖÄ·    ÖÄÄÄ·  A Drive Supplies Bus ³

    ³ ºøºø     øºøº    ÓøÄø½  B Drive Supplies Own ³

    ³ Óø½ø     øÓø½     ø ø   C Bus Supplies Drive ³

    ³   A       B        C                         ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º LEFT SIDE VIEW º  (ST-15230N only)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼             If these ID jumpers are used,

                                 then ID jumpers shown in front

                                 view ARE NOT USED.

  FRONT                TOP (HDA)                 J5 ÕÍÍ1¸ ÕÍ¸BACK

   OF   ÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ:::ÆÍµJ1 OF

  DRIVE                BOTTOM                       ÔÍÍÍ¾ ÔÍ¾DRIVE

                                                     ³³³

                                               ID 1 ÄÙ³ÀÄ ID 4

                                                    ID 2

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (Both ST-15230N and ST-15230NC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                                  ÚÄÄ´Reserved. Shipped with cover installed.

                                  ³  ÀDo not remove. Do not install jumpers

                      TOP (HDA)  ÕØÍÍÍ¸     1

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::³::::::ÆÍÍ

                 *    BOTTOM     ÔÍÍÍÍ¾123456

                 ³               J6    ³³³³³³

            LED ÄÙ                     ³³³³³³

                                  ID 4 Ù³³³³À Reserved

                                  ID 2 ÄÙ³³ÀÄ Remote LED (pin-3 +5v)

                                  ID 1 ÄÄÙÀÄÄ Reserved

      If these ID jumper are used, then ID jumpers shown in left side

      view J5 or 80 pin I/O cable ARE NOT USED.

                            ST-15230N

                            Hawk 4

       UNFORMATTED CAPACITY (MB) ________________5170

       FORMATTED CAPACITY (xx SECTORS) (MB) _____4294

       AVERAGE SECTORS PER TRACK ________________110

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________75,848

       CYLINDERS ________________________________3,992 user

       HEADS ______PHYSICAL______________________19

       DISCS (3.5 in) ___________________________10

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec)________33.9 to 61.0

       EXTERNAL TRANSFER RATE (mbyte/sec) _______5.2 Async

       EXTERNAL TRANSFER RATE (mbyte/sec) _______10 Sync

       SPINDLE SPEED (RPM) ______________________5,411

       AVERAGE LATENCY (mSEC) ___________________5.54

       BUFFER ___________________________________512/2048 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 FAST

                                                 ASA II

       SECTORS PER DRIVE ________________________

       TPI (TRACKS PER INCH) ____________________4200

       AVERAGE ACCESS (ms) (read/write)__________10.4/11.4

         Includes controller overhead

       SINGLE TRACK SEEK (ms) ___________________2.1

       MAX FULL SEEK (ms) _______________________20.6

       MTBF (power-on hours) ____________________800,000

       SHOCK (G's):

                operating (Read/Write) __________10

                nonoperating ____________________60

       ACOUSTICS (typ/max dBA) __________________

       POWER REQUIREMENTS: +12V START-UP (amps) _2.4

                           +12V TYPICAL (amps) __0.54

                           +5V START-UP (amps) __0.61

                           +5V TYPICAL (amps) ___0.36

                           TYPICAL (watts) ______9

                           MAXIMUM (watts) ______11

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):     1.62/41.1

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.74/145.8

                        Weight    (lbs/kg):     2.1/0.93

Already low-level formatted at the factory with twelve spare sectors

per cylinder (all twelve spare sectors are on one track) and two

spare cylinders/unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (06/24/95)


ST-15230W
ST-15230W SCSI-2 Fast Wide (Hawk 4)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-15230W/WD only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

        (TOP)                   Auxiliary

          ___________________  ÚÄÄ  Ä1¿/ÍÍÍÍÍÍÍÍÍ\

        Í( ×××××××××××××××××1)Í³::::::³³ 0 0 0 0 ÆÍ

          \ÄÄÄÄÄÄÄÄÄÄÄÄ³ÄÄÄÄ/  À  ÄÄ  ÙÀÄ5ÄGÄGÄ12Ù

       68 pin I/O CableÙ        ³³³³³³

                                ³³³³³³

                                ³³³³³³

                                ³³³³³³

        Auxiliary option header ³³³³³³

           pin-11 +5v  ÄÄÄÄÄÄÄÄÄÙ³³³³³

           pin-10 GND  ÄÄÄÄÄÄÄÄÄÄÙ³³³³

           SCSI ID = 8 ÄÄÄÄÄÄÄÄÄÄÄÙ³³³

           SCSI ID = 4 ÄÄÄÄÄÄÄÄÄÄÄÄ´³³

            or pin-6 REFIND+ ÄÄÄÄÄÄÙ³³

           SCSI ID = 2 ÄÄÄÄÄÄÄÄÄÄÄÄÄÙ³

           SCSI ID = 1 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

           SCSI ID = 0 (none)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-15230WC only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                     80 pin I/O and DC Power Wall/bracket Connection

                     ³  Female

    J1          /ÄÄÄÄ³ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ\      TOP (HDA)

     ÍÍÍÍÍÍÍÍÍÍ/ ×××××××××××××××××××× \ÍÍÍÍÍÍÍÍÍÍ

              (\Ä1ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ40/)    BOTTOM

     Notes on 80 pin I/O connector:

       pins  1 -  4 = +12v        41 - 44 = 12v GND

            34 - 36 = +5v         74 - 76 = 5v GND

                 37 = SYNC             77 = LEDC

                 38 = MTRON            78 = DLYDST

                 39 = SCSIA0           79 = SCSIA1

                 40 = SCSIA2           80 = SCSIA3

  Mating NC connector: AMP US p/n: 2-557103-1 straight-in, Male 80-pin

                                   2-557101-1 right angle to PCB

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º RIGHT SIDE VIEW º  (Both ST-15230W and ST-15230WC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Enable T-Res (ST15230W only)

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)

  ³         Reserved ÄÄÙ³³ÀÄÄ Motor Start

  ³    Parity Enable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍÍ          ³

    ³                                              ³

    ³  1 2     1 2      1 2                        ³

    ³ ÖÄ·       ÖÄ·    ÖÄÄÄ·  A Drive Supplies Bus ³

    ³ ºøºø     øºøº    ÓøÄø½  B Drive Supplies Own ³

    ³ Óø½ø     øÓø½     ø ø   C Bus Supplies Drive ³

    ³   A       B        C                         ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

  Note: The model ST-15230WC drive cannot furnish terminator power,

because no pins on the 80 pin I/O connector are devoted to terminator

power.

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (Both ST-15230W and ST-15230WC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                      TOP (HDA)   J6  ÕÍÍÍÍÍ1¸

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::::ÆÍ

                 *    BOTTOM          ÔÍÍÍÍÍÍ¾

                 ³                     ³³³³³³

            LED ÄÙ                     ³³³³³³

                                       ³³³³³³

                                       ³³³³³³

               Auxiliary option header ³³³³³³

                  pin-11 +5v  ÄÄÄÄÄÄÄÄÄÙ³³³³³

                  pin-10 GND  ÄÄÄÄÄÄÄÄÄÄÙ³³³³

                  SCSI ID = 8 ÄÄÄÄÄÄÄÂÄÄÄÙ³³³

                   or pin-8 BUSY ÄÄÄÄÙ    ³³³

                  SCSI ID = 4 ÄÄÄÄÄÄÄÂÄÄÄÄÙ³³

                   or pin-6 REFIND+ ÄÙ     ³³

                  SCSI ID = 2 ÄÄÄÄÄÄÄÄÄÄÄÄÄÙ³

                  SCSI ID = 1 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

                  SCSI ID = 0 (none)

      If these ID jumper are used, then

         ID jumpers shown in left side view J5

         or 80 pin I/O cable ARE NOT USED.

                            ST-15230W

                            Hawk 4

       UNFORMATTED CAPACITY (MB) ________________5160

       FORMATTED CAPACITY (xx SECTORS) (MB) _____4294

       AVERAGE SECTORS PER TRACK ________________110

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________75,848

       CYLINDERS ________________________________3,992 user

       HEADS ______PHYSICAL______________________19

       DISCS (3.5 in) ___________________________10

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec)________34 to 63

       EXTERNAL TRANSFER RATE (mbyte/sec) _______20 Sync

       SPINDLE SPEED (RPM) ______________________5,411

       AVERAGE LATENCY (mSEC) ___________________5.54

       BUFFER ___________________________________512/2048 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 FAST Wide

                                                 ASA II

       SECTORS PER DRIVE ________________________

       TPI (TRACKS PER INCH) ____________________3000

       AVERAGE ACCESS (ms) (read/write)__________9.0/10.5

         Drive level without controller overhead

       SINGLE TRACK SEEK (ms) ___________________1

       MAX FULL SEEK (ms) _______________________22

       MTBF (power-on hours) ____________________800,000

       SHOCK (G's):

                operating (Read/Write) __________10

                nonoperating ____________________60

       ACOUSTICS (typ/max dBA) __________________/

       POWER REQUIREMENTS: +12V START-UP (amps) _2.4

                           +12V TYPICAL (amps) __0.6

                           +5V START-UP (amps) __0.8

                           +5V TYPICAL (amps) ___0.43

                           TYPICAL (watts) ______9

                           MAXIMUM (watts) ______

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):     1.63/41.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.75/146.1

                        Weight    (lbs/kg):     2.5/0.99

Already low-level formatted at the factory with twelve spare sectors

per cylinder and two spare cylinders/unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (11/03/95)


ST-157N
ST-157N SCSI

                                                 /ÄÄÄ¿

                                                 ³ O ³12

                                                 ³ O ³G

                                                 ³ O ³G

                                                 ³ O ³5

                        SCSI Connector           \ÄÄÄÙ

        ÍÍÍÍÍPÍWÍAÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍ

          o o o o o  ³::::::::::::::::::::::::1³

          o o o o o  ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾

          4 2 1 ³ P ÚÄÄÄÄÄÄ1ÚÄÄÄÄÄÄ1ÚÄÄÄÄÄÄ1

          ÄÄÂÄÄ ³ ³ ÀÄÄÄÄÄÄÙÀÄÄÄÄÄÄÙÀÄÄÄÄÄÄÙ

            ³   ³ ³    À Resistor Termination Packs

            ³   ³ ³

            ³   ³ ÀÄ Parity Check enable

            ³   ÀÄÄÄ Not Used

            ÀÄÄÄÄÄÄÄ Drive ID's, ID 0 (none) for single drive system

                         ST - 157N

       UNFORMATTED CAPACITY (MB) ________________57

       FORMATTED CAPACITY (26 SECTORS) (MB) _____48.6

       ACTUATOR TYPE ____________________________STEPPER

       TRACKS ___________________________________3,678

       CYLINDERS ________________________________615

       HEADS ____________________________________6

       DISCS ____________________________________3

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       TRANSFER RATE (mbits/sec) ________________7.5

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.3

       BUFFER ___________________________________2 Kbyte

       INTERFACE ________________________________SCSI

       SECTORS PER DRIVE ________________________94,860

       TPI (TRACKS PER INCH) ____________________824

       BPI (BITS PER INCH) ______________________22,430

       AVERAGE ACCESS (ms) ______________________40/28*

       SINGLE TRACK SEEK (ms) ___________________8

       MAX FULL SEEK (ms) _______________________ /70

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.0

                           +12V TYPICAL (amps) __0.35

                           +5V TYPICAL (amps) ___0.9

                           TYPICAL (watts) ______9

                           MAXIMUM (watts) ______29

       BUFFERED STEP PULSE RATE (micro sec) _____3-200

       WRITE PRECOMP (cyl) ______________________N/A (616)

       REDUCED WRITE CURRENT (cyl) ______________N/A (616)

       LANDING ZONE (cyl)________________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       *ST157N-0/ST157N-1

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-1581N
ST-1581N SCSI-2 Fast

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

         50 pin I/O Cable Connection

      ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ1¸

    J4³:::::::::::::::::::::::::³ /ÄÄÄÄÄÄÄÄÄ\

     ÍÏÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ³ 0 0 0 0 ³ÍÍ

       ÚÄÄÄÄÄÄ1 ÚÄÄÄÄÄÄ1 ÚÄÄÄÄÄÄ1 ÀÄ5ÄGÄGÄ12Ù

       ÀÄÄÄÄÄÄÙ ÀÄÄÄÂÄÄÙ ÀÄÄÄÄÄÄÙ

        ÀTerminating ResistorsÙ

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º LEFT SIDE VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

                 12345678

                ÕÍÍÍÍÍÍÍÍ¸

FRONT         J6³::::::::³                                      BACK

 OF   ÍÍÍÍÍÍÍÍÍÍÏ1ÍÍÍÍÍÍÍÏÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ  OF

DRIVE            ³³³³³³³³                                       DRIVE

     Factory Use Ù³³³³³³À Terminator Power (see below)³

     Motor Start ÄÙ³³³³ÀÄ Terminator Power (see below)ÃÄÄ¿

     Start Delay ÄÄÙ³³ÀÄÄ Reserved                       ³

   Write Protect ÄÄÄÙÀÄÄÄ Parity   ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄ¿

                                   ³ Termination Power-source Table ³

                                   ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄ¿

                                   ³ 7 8    7 8   7 8                        ³

                                   ³  ÖÄ·  ÖÄ·   ÖÄÄÄ·  A Drive Supplies Own ³

                                   ³ øºøº  ºøºø  ÓøÄø½  B Drive Supplies Bus ³

                                   ³ øÓø½  Óø½ø   ø ø   C Bus Supplies Drive ³

                                   ³  A      B     C                         ³

                                   ÔÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º RIGHT SIDE VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

           ÕÍÍÍ¸

BACK     J5³:::³                                                FRONT

 OF   ÍÍÍÍÍÏÍÍÍÏÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ  OF

DRIVE       ³³³                                                 DRIVE

      ID 4 ÄÙ³ÀÄ ID 1   If these ID jumpers are used,

           ID 2         then ID jumpers shown in front

                        view ARE NOT USED.

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                          If these ID jumper are used,

       ÕÍÍÍÍÍ¸            then ID jumpers shown in right side

     J7³:::::³            view ARE NOT USED.

     ÍÍÏ1ÍÍÍÍÏÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

        ³³³³³

   ID 1 Ù³³³À Remote LED

   ID 2 ÄÙ³ÀÄ Spindle Synchronization

        ID 4

                              ST - 1581N

       UNFORMATTED CAPACITY (MB) ________________613

       FORMATTED CAPACITY (xx SECTORS) (MB) _____525

       AVERAGE SECTORS PER TRACK ________________77

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________13,302

       CYLINDERS ________________________________1,476

       HEADS ____________________________________9

       DISCS (3.5 in) ___________________________5

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______20 to 32

       SPINDLE SPEED (RPM) ______________________4,412

       AVERAGE LATENCY (mSEC) ___________________6.8

       BUFFER ___________________________________256 Kbyte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 Fast

       SECTOR PER DRIVE _________________________1,022,868

       TPI (TRACKS PER INCH) ____________________1760

       BPI (BITS PER INCH) ______________________

       AVERAGE ACCESS (ms) ______________________14

       SINGLE TRACK SEEK (ms) ___________________2.5

       MAX FULL SEEK (ms) _______________________26

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.5

                           +12V TYPICAL (amps) __0.54

                           +5V TYPICAL (amps) ___0.53/0.8(ND)

                           TYPICAL (watts) ______9/11.0(ND)

                           MAXIMUM (watts) ______15

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl)________________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

Already low-level formatted at the factory.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (4/12/91)


ST-177N
ST-177N SCSI

                                                 /ÄÄÄ¿

                                                 ³ O ³12

                                                 ³ O ³G

                                                 ³ O ³G

          o o o o o                              ³ O ³5

          o o o o o                              \ÄÄÄÙ

        ÍÍÑÍÑÍÑÍÑÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

          1 2 4 ³ P   ........................1

          ÀÄÅÄÙ ³ ³  À.........................Ù

            ³   ³ ³ ÚÄÄÄÄÄÄ1ÚÄÄÄÄÄÄ1ÚÄÄÄÄÄÄ1

            ³   ³ ³ ÀÄÄÄÄÄÄÙÀÄÄÄÄÄÄÙÀÄÄÄÄÄÄÙ

            ³   ³ ³    À Resistor Termination Packs

            ³   ³ ³

            ³   ³ ÀÄ Parity Check enable

            ³   ÀÄÄÄ Not Used

            ÀÄÄÄÄÄÄÄ Drive ID's, ID 0 (none) for single drive system

                              ST - 177N

       UNFORMATTED CAPACITY (MB) ________________N/A

       FORMATTED CAPACITY (26 SECTORS) (MB) _____60.8

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________4,606

       CYLINDERS ________________________________921

       HEADS ____________________________________5

       DISCS ____________________________________3

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL

       TRANSFER RATE (mbits/sec) ________________7.5

       SPINDLE SPEED (RPM) ______________________3,600

       INTERFACE ________________________________SCSI

       TPI (TRACKS PER INCH) ____________________1,300

       BPI (BITS PER INCH) ______________________19,893

       AVERAGE ACCESS (ms) ______________________20

       SINGLE TRACK SEEK (ms) ___________________8

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.0

                           +12V TYPICAL (amps) __0.5

                           +5V TYPICAL (amps) ___0.6

                           TYPICAL (watts) ______9

                           MAXIMUM (watts) ______27

       BUFFERED STEP PULSE RATE (micro sec) _____3-200

       WRITE PRECOMP (cyl) ______________________N/A (922)

       REDUCED WRITE CURRENT (cyl) ______________N/A (922)

       LANDING ZONE (cyl)________________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-1830N
ST-1830N SCSI-2 Fast

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

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         50 pin I/O Cable Connection

         ³

    J1ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ1¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     Íµ:::::::::::::::::::::::::ÆÍ³ 0 0 0 0 ³ÍÍ

      ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

       1ÄÄÄÄÄÄ¿ 1ÄÄÄÄÄÄ¿ 1ÄÄÄÄÄÄ¿

       ÀÄÄÄÄÄÄÙ ÀÄÄÄÂÄÄÙ ÀÄÄÄÄÄÄÙ

        ÀTerminating ResistorsÙ

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º RIGHT SIDE VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Reserved

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)

  ³      Factory Use ÄÄÙ³³ÀÄÄ Motor Start

  ³    Parity Enable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍÍ          ³

    ³                                              ³

    ³  1 2     1 2      1 2                        ³

    ³ ÖÄ·       ÖÄ·    ÖÄÄÄ·  A Drive Supplies Bus ³

    ³ ºøºø     øºøº    ÓøÄø½  B Drive Supplies Own ³

    ³ Óø½ø     øÓø½     ø ø   C Bus Supplies Drive ³

    ³   A       B        C                         ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º LEFT SIDE VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼             If these ID jumpers are used,

                                 then ID jumpers shown in front

                                 view ARE NOT USED.

  FRONT                TOP (HDA)                 J5 ÕÍÍ1¸ ÕÍ¸BACK

   OF   ÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ:::ÆÍµJ1 OF

  DRIVE                BOTTOM                       ÔÍÍÍ¾ ÔÍ¾DRIVE

                                                     ³³³

                   Note:  On early drives  ³   ID 1 ÄÙ³ÀÄ ID 4

                   with PCB# 75782395 or   ³        ID 2

                   #75782485 ID jumpers areÃÄÄ ID 4       ID 1

                   reversed.               ³

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                      TOP (HDA)   J6  ÕÍÍÍÍÍ1¸

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::::ÆÍ

                 *    BOTTOM          ÔÍÍÍÍÍÍ¾

                 ³                     123456

            LED ÄÙ                     ³³³³³³

                                  ID 4 Ù³³³³À Reserved

                                  ID 2 ÄÙ³³ÀÄ Remote LED (pin-3 +5v)

                                  ID 1 ÄÄÙÀÄÄ Spindle Synchronization

                                               (pin-6 REF SIG+)

      If these ID jumper are used, then

         ID jumpers shown in left side

         view ARE NOT USED.

                              ST - 1830N

       UNFORMATTED CAPACITY (MB) ________________834

       FORMATTED CAPACITY (xx SECTORS) (MB) _____702

       AVERAGE SECTORS PER TRACK ________________79

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________17,225

       CYLINDERS ________________________________1,325 (user)

       HEADS ____________________________________13

       DISCS (3.5 in) ___________________________7

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______28.4 to 41.2

       EXTERNAL TRANSFER RATE (mbyte/sec) _______4 Async

       EXTERNAL TRANSFER RATE (mbyte/sec) _______10 Sync

       SPINDLE SPEED (RPM) ______________________4,535

       AVERAGE LATENCY (mSEC) ___________________6.61

       BUFFER ___________________________________256 Kbyte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 Fast

       BYTES PER TRACK __________________________48,419 avg.

       TPI (TRACKS PER INCH) ____________________2,150

       AVERAGE ACCESS (ms) (read/write)__________TBD

         Drive level without controller overhead

       SINGLE TRACK SEEK (ms) ___________________TBD

       MAX FULL SEEK (ms) _______________________TBD

       MTBF (power-on hours) ____________________200,000

       SHOCK (G's):

                operating (Read/Write) __________10

                nonoperating ____________________60

       ACOUSTICS (typ/max dBA) __________________/

       POWER REQUIREMENTS: +12V START-UP (amps) _2.0

                           +12V TYPICAL (amps) __0.5

                           +5V TYPICAL (amps) ___0.4

                           TYPICAL (watts) ______11

                           IDLE (watts) _________9

       LANDING ZONE (cyl)________________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

Already low-level formatted at the factory.

ZBR = Zone Bit Recording = Variable sectors per track

Formatted at the factory with 1 spare sector per track

 and two spare cylinders at inner tracks per unit.

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/12/93)


ST-18771N
ST-18771N Ultra-SCSI (Barracuda 8)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-18771N)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

         50 pin I/O Cable Connection

         ³

    J1ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ1¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     Íµ:::::::::::::::::::::::::ÆÍ³ 0 0 0 0 ³ÍÍ

      ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º SIDE VIEW º  (ST-18771N)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Enable T-Res (N model only)

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)

  ³         Reserved ÄÄÙ³³ÀÄÄ Motor Start

  ³   Parity Disable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍÍ          ³

    ³                                              ³

    ³  1 2     1 2      1 2                        ³

    ³ ÖÄ·       ÖÄ·           A Drive Supplies Bus ³

    ³ ºøºø     øºøº    ÖøÄø·  B Drive Supplies Own ³

    ³ Óø½ø     øÓø½    ÓøÄø½  C Bus Supplies Drive ³

    ³   A       B        C                         ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

    Note: ND drives do not have internal terminators or any other

          way of adding internal terminators to the drive; use

          external active termination if required.

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (ST-18771N)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                                  ÚÄÄ´Reserved. Shipped with cover installed.

                                  ³  ÀDo not remove. Do not install jumpers

                      TOP (HDA)  ÕØÍÍÍ¸     1

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::³::::::ÆÍÍ

                 *    BOTTOM     ÔÍÍÍÍ¾123456

                 ³               J6    ³³³³³³

            LED ÄÙ                     ³³³³³³

                            Remote LED Ù³³³³À ID 1

                           (pin-11 +5v) ³³³ÀÄ ID 2

                              Reserved ÄÁÙÀÄÄ ID 4

                            ST-18771N

       UNFORMATTED CAPACITY (MB) ________________11300

       FORMATTED CAPACITY (MB) __________________8700

       AVERAGE SECTORS PER TRACK ________________ rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________105,460

       CYLINDERS ________________________________5,273 user

       HEADS ______PHYSICAL______________________20

       DISCS (3.5 in) ___________________________11

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________PRML (0,6,6)

       INTERNAL TRANSFER RATE (mbits/sec)________75 to 120

       EXTERNAL TRANSFER RATE (mbyte/sec) _______20 Sync

       SPINDLE SPEED (RPM) ______________________7,200

       AVERAGE LATENCY (mSEC) ___________________4.17

       BUFFER (/optional)________________________512/2048 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________Ultra-SCSI

                                                 ASA II

       BYTES PER TRACK __________________________70,830 to 111,460

       SECTORS PER DRIVE ________________________16,997,187

       TPI (TRACKS PER INCH) ____________________

       BPI (BITS PER INCH) ______________________

       AVERAGE ACCESS (ms) (read/write)__________8.0/9.0

         Drive level without controller overhead

       SINGLE TRACK SEEK (ms) ___________________0.6/1.1

       MAX FULL SEEK (ms) _______________________19/20

       MTBF (power-on hours) ____________________1,000,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.2

                           +12V TYPICAL (amps) __0.7 idle

                           +5V START-UP (amps) __

                           +5V TYPICAL (amps) ___0.8 idle

                           IDLE (watts) _________12.4

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):     1.63/41.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.75/146.1

                        Weight    (lbs/kg):     2.3/1.04

Already low-level formatted at the factory with 9 spare sectors

per cylinder and 1 spare cylinder per unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (01/03/96)


ST-18771W
ST-18771W Ultra-SCSI Wide (Barracuda 8)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-18771W only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

        (TOP)                   Auxiliary

          ___________________  ÚÄÄ  Ä1¿/ÍÍÍÍÍÍÍÍÍ\

        Í( ×××××××××××××××××1)Í³::::::³³ 0 0 0 0 ÆÍ

          \ÄÄÄÄÄÄÄÄÄÄÄÄ³ÄÄÄÄ/  À  ÄÄ  ÙÀÄ5ÄGÄGÄ12Ù

       68 pin I/O CableÙ        ³³³³³³

       Connection Male          ³³³³³³

                                ³³³³³³

                                ³³³³³³

        Auxiliary option header ³³³³³³

           pin-11 +5v  ÄÄÄÄÄÄÄÄÄÙ³³³³³

           pin-10 GND  ÄÄÄÄÄÄÄÄÄÄÙ³³³³

           SCSI ID = 8 ÄÄÄÄÄÄÄÄÄÄÄÙ³³³

           SCSI ID = 4 ÄÄÄÄÄÄÄÄÄÄÄÄ´³³

            or pin-6 REFIND+ ÄÄÄÄÄÄÙ³³

           SCSI ID = 2 ÄÄÄÄÄÄÄÄÄÄÄÄÄÙ³

           SCSI ID = 1 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

           SCSI ID = 0 (none)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-18771WC only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                     80 pin I/O and DC Power Wall/bracket Connection

                     ³  Female

    J1          /ÄÄÄÄ³ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ\      TOP (HDA)

     ÍÍÍÍÍÍÍÍÍÍ/ ×××××××××××××××××××× \ÍÍÍÍÍÍÍÍÍÍ

              (\Ä1ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ40/)    BOTTOM

     Notes on 80 pin I/O connector:

       pins  1 -  4 = +12v        41 - 44 = 12v GND

            34 - 36 = +5v         74 - 76 = 5v GND

                 37 = SYNC             77 = LEDC

                 38 = MTRON            78 = DLYDST

                 39 = SCSIA0           79 = SCSIA1

                 40 = SCSIA2           80 = SCSIA3

  Mating NC connector: AMP US p/n: 2-557103-1 straight-in, Male 80-pin

                                   2-557101-1 right angle to PCB

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º SIDE VIEW º  (ST-18771W/WC)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Enable T-Res (not used on WC,WD models)

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)

  ³         Reserved ÄÄÙ³³ÀÄÄ Motor Start

  ³   Parity Disable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍ                       ³

    ³                                    A Drive Supplies Bus  ³

    ³  1 2     1 2      1 2      1 2     B Drive Supplies Own  ³

    ³ ÖÄ·       ÖÄ·             Ö Ä ·    C Bus Supplies Drive  ³

    ³ ºøºø     øºøº    ÖøÄø·    ÓøÄø½    D Differential only:  ³

    ³ Óø½ø     øÓø½    ÓøÄø½     ø ø       Drive Supplies Bus  ³

    ³   A       B        C        D                            ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

    (not used on WC model)

    Note: WD drives do not have internal terminators or any other

          way of adding internal terminators to the drive; use

          external active termination if required.

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (ST-18771W/WC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                                  ÚÄÄ´Reserved. Shipped with cover installed.

                                  ³  ÀDo not remove. Do not install jumpers

                      TOP (HDA)  ÕØÍÍÍ¸     1

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::³::::::ÆÍÍ

                 *    BOTTOM     ÔÍÍÍÍ¾123456

                 ³               J6    ³³³³³³

            LED ÄÙ                     ³³³³³³

                            Remote LED Ù³³³³À ID 1

                           (pin-11 +5v) ³³³ÀÄ ID 2

                              Reserved ÄÙ³ÀÄÄ ID 4

                                         ÀÄÄÄ ID 8

                            ST-18771W

       UNFORMATTED CAPACITY (MB) ________________11300

       FORMATTED CAPACITY (MB) __________________8700

       AVERAGE SECTORS PER TRACK ________________ rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________105,460

       CYLINDERS ________________________________5,273 user

       HEADS ______PHYSICAL______________________20

       DISCS (3.5 in) ___________________________11

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________PRML (0,6,6)

       INTERNAL TRANSFER RATE (mbits/sec)________75 to 120

       EXTERNAL TRANSFER RATE (mbyte/sec) _______40 Sync

       SPINDLE SPEED (RPM) ______________________7,200

       AVERAGE LATENCY (mSEC) ___________________4.17

       BUFFER (/optional)________________________512/2048 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________Ultra-SCSI

                                                 ASA II

       BYTES PER TRACK __________________________70,830 to 111,460

       SECTORS PER DRIVE ________________________16,997,187

       TPI (TRACKS PER INCH) ____________________

       BPI (BITS PER INCH) ______________________

       AVERAGE ACCESS (ms) (read/write)__________8.0/9.5

         Drive level without controller overhead

       SINGLE TRACK SEEK (ms) ___________________0.6/1.1

       MAX FULL SEEK (ms) _______________________19/20

       MTBF (power-on hours) ____________________1,000,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.2

                           +12V TYPICAL (amps) __0.7 idle

                           +5V START-UP (amps) __

                           +5V TYPICAL (amps) ___0.8 idle

                           IDLE (watts) _________12.4

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):     1.63/41.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.75/146.1

                        Weight    (lbs/kg):     2.3/1.04

Already low-level formatted at the factory with x spare sectors

per cylinder and x spare cylinder per unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (01/03/96)


ST-19101N
ST-19101N Ultra-SCSI (Cheetah 9)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-19101N)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

         50 pin I/O Cable Connection

         ³

    J1ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ1¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     Íµ:::::::::::::::::::::::::ÆÍ³ 0 0 0 0 ³ÍÍ

      ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º SIDE VIEW º  (ST-19101N)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Enable T-Res (N model only)

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)

  ³         Reserved ÄÄÙ³³ÀÄÄ Motor Start

  ³   Parity Disable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍÍ          ³

    ³                                              ³

    ³  1 2     1 2      1 2                        ³

    ³ ÖÄ·       ÖÄ·           A Drive Supplies Bus ³

    ³ ºøºø     øºøº    ÖøÄø·  B Drive Supplies Own ³

    ³ Óø½ø     øÓø½    ÓøÄø½  C Bus Supplies Drive ³

    ³   A       B        C                         ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

    Note: ND drives do not have internal terminators or any other

          way of adding internal terminators to the drive; use

          external active termination if required.

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (ST-19101N)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                                  ÚÄÄ´Reserved. Shipped with cover installed.

                                  ³  ÀDo not remove. Do not install jumpers

                      TOP (HDA)  ÕØÍÍÍ¸     1

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::³::::::ÆÍÍ

                 *    BOTTOM     ÔÍÍÍÍ¾123456

                 ³               J6    ³³³³³³

            LED ÄÙ                     ³³³³³³

                            Remote LED Ù³³³³À ID 1

                           (pin-11 +5v) ³³³ÀÄ ID 2

                              Reserved ÄÁÙÀÄÄ ID 4

                            ST-19101N

       UNFORMATTED CAPACITY (MB) ________________11700

       FORMATTED CAPACITY (MB) __________________9100

       AVERAGE SECTORS PER TRACK ________________ rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________105,312

       CYLINDERS ________________________________6,582 user

       HEADS ______PHYSICAL______________________16

       DISCS (3.5 in) ___________________________8

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________PRML (0,4,4)

       INTERNAL TRANSFER RATE (mbits/sec)________122 to 177

       INTERNAL FORMATTED TRANSFER RATE (MB/sec)_11.3 to 16.8

       EXTERNAL TRANSFER RATE (mbyte/sec) _______20 Sync

       SPINDLE SPEED (RPM) ______________________7,200

       AVERAGE LATENCY (mSEC) ___________________4.17

       BUFFER (/optional)________________________512/2048 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________Ultra-SCSI

                                                 ASA II

       BYTES PER TRACK __________________________

       SECTORS PER DRIVE ________________________17,839,344

       TPI (TRACKS PER INCH) ____________________

       BPI (BITS PER INCH) ______________________

       AVERAGE ACCESS (ms) (read/write)__________8/9

         Drive level with controller overhead

       SINGLE TRACK SEEK (ms) ___________________0.78/1.04

       MAX FULL SEEK (ms) _______________________18

       MTBF (power-on hours) ____________________1,000,000

       SHOCK (G's):

                operating (Read/Write) __________

                abnormal ________________________

                nonoperating ____________________

       ACOUSTICS (Bels typical, sound power) ____

       POWER DISSIPATION (watts/BTUs) Active ____

                                      Idle ______

       POWER REQUIREMENTS: +12V START-UP (amps) _4.0

                           +12V TYPICAL (amps) __1.42 idle

                           +5V START-UP (amps) __

                           +5V TYPICAL (amps) ___0.74 idle

                           IDLE (watts) _________20.7

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):     1.63/41.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.75/146.1

                        Weight    (lbs/kg):     2.3/1.04

Already low-level formatted at the factory with 16 spare sectors

per cylinder and 1 spare cylinder per unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (12/11/96)


ST-19101W
ST-19101W Ultra-SCSI Wide (Cheetah 9)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-19101W only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

        (TOP)                   Auxiliary

          ___________________  ÚÄÄ  Ä1¿/ÍÍÍÍÍÍÍÍÍ\

        Í( ×××××××××××××××××1)Í³::::::³³ 0 0 0 0 ÆÍ

          \ÄÄÄÄÄÄÄÄÄÄÄÄ³ÄÄÄÄ/  À  ÄÄ  ÙÀÄ5ÄGÄGÄ12Ù

       68 pin I/O CableÙ        ³³³³³³

       Connection Male          ³³³³³³

                                ³³³³³³

                                ³³³³³³

        Auxiliary option header ³³³³³³

           pin-11 +5v  ÄÄÄÄÄÄÄÄÄÙ³³³³³

           pin-10 GND  ÄÄÄÄÄÄÄÄÄÄÙ³³³³

           SCSI ID = 8 ÄÄÄÄÄÄÄÄÄÄÄÙ³³³

           SCSI ID = 4 ÄÄÄÄÄÄÄÄÄÄÄÄ´³³

            or pin-6 REFIND+ ÄÄÄÄÄÄÙ³³

           SCSI ID = 2 ÄÄÄÄÄÄÄÄÄÄÄÄÄÙ³

           SCSI ID = 1 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

           SCSI ID = 0 (none)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-19101WC only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                     80 pin I/O and DC Power Wall/bracket Connection

                     ³  Female

    J1          /ÄÄÄÄ³ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ\      TOP (HDA)

     ÍÍÍÍÍÍÍÍÍÍ/ ×××××××××××××××××××× \ÍÍÍÍÍÍÍÍÍÍ

              (\Ä1ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ40/)    BOTTOM

     Notes on 80 pin I/O connector:

       pins  1 -  4 = +12v        41 - 44 = 12v GND

            34 - 36 = +5v         74 - 76 = 5v GND

                 37 = SYNC             77 = LEDC

                 38 = MTRON            78 = DLYDST

                 39 = SCSIA0           79 = SCSIA1

                 40 = SCSIA2           80 = SCSIA3

  Mating NC connector: AMP US p/n: 2-557103-1 straight-in, Male 80-pin

                                   2-557101-1 right angle to PCB

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º SIDE VIEW º  (ST-19101W/WC)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Enable T-Res (not used on WC,WD models)

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)

  ³         Reserved ÄÄÙ³³ÀÄÄ Motor Start

  ³   Parity Disable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍ                       ³

    ³                                    A Drive Supplies Bus  ³

    ³  1 2     1 2      1 2      1 2     B Drive Supplies Own  ³

    ³ ÖÄ·       ÖÄ·             Ö Ä ·    C Bus Supplies Drive  ³

    ³ ºøºø     øºøº    ÖøÄø·    ÓøÄø½    D Differential only:  ³

    ³ Óø½ø     øÓø½    ÓøÄø½     ø ø       Drive Supplies Bus  ³

    ³   A       B        C        D                            ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

    (not used on WC model)

    Note: WD drives do not have internal terminators or any other

          way of adding internal terminators to the drive; use

          external active termination if required.

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (ST-19101W/WC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                                  ÚÄÄ´Reserved. Shipped with cover installed.

                                  ³  ÀDo not remove. Do not install jumpers

                      TOP (HDA)  ÕØÍÍÍ¸     1

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::³::::::ÆÍÍ

                 *    BOTTOM     ÔÍÍÍÍ¾123456

                 ³               J6    ³³³³³³

            LED ÄÙ                     ³³³³³³

                            Remote LED Ù³³³³À ID 1

                           (pin-11 +5v) ³³³ÀÄ ID 2

                              Reserved ÄÙ³ÀÄÄ ID 4

                                         ÀÄÄÄ ID 8

                            ST-19101W

       UNFORMATTED CAPACITY (MB) ________________11700

       FORMATTED CAPACITY (MB) __________________9100

       AVERAGE SECTORS PER TRACK ________________ rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________105,312

       CYLINDERS ________________________________6,582 user

       HEADS ______PHYSICAL______________________16

       DISCS (3.5 in) ___________________________8

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________PRML (0,4,4)

       INTERNAL TRANSFER RATE (mbits/sec)________122 to 177

       INTERNAL FORMATTED TRANSFER RATE (MB/sec)_11.3 to 16.8

       EXTERNAL TRANSFER RATE (mbyte/sec) _______40 Sync

       SPINDLE SPEED (RPM) ______________________7,200

       AVERAGE LATENCY (mSEC) ___________________4.17

       BUFFER (/optional)________________________512/2048 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________Ultra-SCSI Wide

                                                 ASA II

       BYTES PER TRACK __________________________

       SECTORS PER DRIVE ________________________17,839,344

       TPI (TRACKS PER INCH) ____________________5555

       BPI (BITS PER INCH) ______________________

       AVERAGE ACCESS (ms) (read/write)__________8/9

         Drive level with controller overhead

       SINGLE TRACK SEEK (ms) ___________________0.78/1.04

       MAX FULL SEEK (ms) _______________________18

       MTBF (power-on hours) ____________________1,000,000

       SHOCK (G's):

                operating (Read/Write) __________

                abnormal ________________________

                nonoperating ____________________

       ACOUSTICS (Bels typical, sound power) ____

       POWER DISSIPATION (watts/BTUs) Active ____

                                      Idle ______

       POWER REQUIREMENTS: +12V START-UP (amps) _2.2

                           +12V TYPICAL (amps) __0.8 idle

                           +5V START-UP (amps) __

                           +5V TYPICAL (amps) ___0.97 idle

                           IDLE (watts) _________12.4

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):     1.63/41.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.75/146.1

                        Weight    (lbs/kg):     2.3/1.04

Already low-level formatted at the factory with 16 spare sectors

per cylinder and 1 spare cylinder per unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (12/11/96)


ST-19171N
ST-19171N Ultra-SCSI (Barracuda 9)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-19171N)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

         50 pin I/O Cable Connection

         ³

    J1ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ1¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     Íµ:::::::::::::::::::::::::ÆÍ³ 0 0 0 0 ³ÍÍ

      ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º SIDE VIEW º  (ST-19171N)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Enable T-Res (N model only)

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)

  ³         Reserved ÄÄÙ³³ÀÄÄ Motor Start

  ³   Parity Disable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍÍ          ³

    ³                                              ³

    ³  1 2     1 2      1 2                        ³

    ³ ÖÄ·       ÖÄ·           A Drive Supplies Bus ³

    ³ ºøºø     øºøº    ÖøÄø·  B Drive Supplies Own ³

    ³ Óø½ø     øÓø½    ÓøÄø½  C Bus Supplies Drive ³

    ³   A       B        C                         ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

    Note: ND drives do not have internal terminators or any other

          way of adding internal terminators to the drive; use

          external active termination if required.

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (ST-19171N)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                                  ÚÄÄ´Reserved. Shipped with cover installed.

                                  ³  ÀDo not remove. Do not install jumpers

                      TOP (HDA)  ÕØÍÍÍ¸     1

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::³::::::ÆÍÍ

                 *    BOTTOM     ÔÍÍÍÍ¾123456

                 ³               J6    ³³³³³³

            LED ÄÙ                     ³³³³³³

                            Remote LED Ù³³³³À ID 1

                           (pin-11 +5v) ³³³ÀÄ ID 2

                              Reserved ÄÁÙÀÄÄ ID 4

                            ST-19171N

       UNFORMATTED CAPACITY (MB) ________________11700

       FORMATTED CAPACITY (MB) __________________9100

       AVERAGE SECTORS PER TRACK ________________168 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________105,460

       CYLINDERS ________________________________5,273 user

       HEADS ______PHYSICAL______________________20

       DISCS (3.5 in) ___________________________11

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________PRML (0,4,4)

       INTERNAL TRANSFER RATE (mbits/sec)________80 to 124

       EXTERNAL TRANSFER RATE (mbyte/sec) _______20 Sync

       SPINDLE SPEED (RPM) ______________________7,200

       AVERAGE LATENCY (mSEC) ___________________4.17

       BUFFER (/optional)________________________512/2048 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________Ultra-SCSI

                                                 ASA II

       BYTES PER TRACK __________________________

       SECTORS PER DRIVE ________________________17,773,440

       TPI (TRACKS PER INCH) ____________________5555

       BPI (BITS PER INCH) ______________________

       AVERAGE ACCESS (ms) (read/write)__________8.2/9.7

         Drive level with controller overhead

       SINGLE TRACK SEEK (ms) ___________________0.8/1.2

       MAX FULL SEEK (ms) _______________________19.2/20.2

       MTBF (power-on hours) ____________________1,000,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.2

                           +12V TYPICAL (amps) __0.8 idle

                           +5V START-UP (amps) __

                           +5V TYPICAL (amps) ___0.97 idle

                           IDLE (watts) _________12.4

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):     1.63/41.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.75/146.1

                        Weight    (lbs/kg):     2.3/1.04

Already low-level formatted at the factory with 16 spare sectors

per cylinder and 1 spare cylinder per unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (09/16/96)


ST-19171W
ST-19171W Ultra-SCSI Wide (Barracuda 9)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-19171W only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

        (TOP)                   Auxiliary

          ___________________  ÚÄÄ  Ä1¿/ÍÍÍÍÍÍÍÍÍ\

        Í( ×××××××××××××××××1)Í³::::::³³ 0 0 0 0 ÆÍ

          \ÄÄÄÄÄÄÄÄÄÄÄÄ³ÄÄÄÄ/  À  ÄÄ  ÙÀÄ5ÄGÄGÄ12Ù

       68 pin I/O CableÙ        ³³³³³³

       Connection Male          ³³³³³³

                                ³³³³³³

                                ³³³³³³

        Auxiliary option header ³³³³³³

           pin-11 +5v  ÄÄÄÄÄÄÄÄÄÙ³³³³³

           pin-10 GND  ÄÄÄÄÄÄÄÄÄÄÙ³³³³

           SCSI ID = 8 ÄÄÄÄÄÄÄÄÄÄÄÙ³³³

           SCSI ID = 4 ÄÄÄÄÄÄÄÄÄÄÄÄ´³³

            or pin-6 REFIND+ ÄÄÄÄÄÄÙ³³

           SCSI ID = 2 ÄÄÄÄÄÄÄÄÄÄÄÄÄÙ³

           SCSI ID = 1 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

           SCSI ID = 0 (none)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-19171WC only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                     80 pin I/O and DC Power Wall/bracket Connection

                     ³  Female

    J1          /ÄÄÄÄ³ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ\      TOP (HDA)

     ÍÍÍÍÍÍÍÍÍÍ/ ×××××××××××××××××××× \ÍÍÍÍÍÍÍÍÍÍ

              (\Ä1ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ40/)    BOTTOM

     Notes on 80 pin I/O connector:

       pins  1 -  4 = +12v        41 - 44 = 12v GND

            34 - 36 = +5v         74 - 76 = 5v GND

                 37 = SYNC             77 = LEDC

                 38 = MTRON            78 = DLYDST

                 39 = SCSIA0           79 = SCSIA1

                 40 = SCSIA2           80 = SCSIA3

  Mating NC connector: AMP US p/n: 2-557103-1 straight-in, Male 80-pin

                                   2-557101-1 right angle to PCB

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º SIDE VIEW º  (ST-19171W/WC)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Enable T-Res (not used on WC,WD models)

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)

  ³         Reserved ÄÄÙ³³ÀÄÄ Motor Start

  ³   Parity Disable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍ                       ³

    ³                                    A Drive Supplies Bus  ³

    ³  1 2     1 2      1 2      1 2     B Drive Supplies Own  ³

    ³ ÖÄ·       ÖÄ·             Ö Ä ·    C Bus Supplies Drive  ³

    ³ ºøºø     øºøº    ÖøÄø·    ÓøÄø½    D Differential only:  ³

    ³ Óø½ø     øÓø½    ÓøÄø½     ø ø       Drive Supplies Bus  ³

    ³   A       B        C        D                            ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

    (not used on WC model)

    Note: WD drives do not have internal terminators or any other

          way of adding internal terminators to the drive; use

          external active termination if required.

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (ST-19171W/WC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                                  ÚÄÄ´Reserved. Shipped with cover installed.

                                  ³  ÀDo not remove. Do not install jumpers

                      TOP (HDA)  ÕØÍÍÍ¸     1

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::³::::::ÆÍÍ

                 *    BOTTOM     ÔÍÍÍÍ¾123456

                 ³               J6    ³³³³³³

            LED ÄÙ                     ³³³³³³

                            Remote LED Ù³³³³À ID 1

                           (pin-11 +5v) ³³³ÀÄ ID 2

                              Reserved ÄÙ³ÀÄÄ ID 4

                                         ÀÄÄÄ ID 8

                            ST-19171W

       UNFORMATTED CAPACITY (MB) ________________11700

       FORMATTED CAPACITY (MB) __________________9100

       AVERAGE SECTORS PER TRACK ________________168 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________105,460

       CYLINDERS ________________________________5,273 user

       HEADS ______PHYSICAL______________________20

       DISCS (3.5 in) ___________________________11

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________PRML (0,4,4)

       INTERNAL TRANSFER RATE (mbits/sec)________80 to 124

       EXTERNAL TRANSFER RATE (mbyte/sec) _______40 Sync

       SPINDLE SPEED (RPM) ______________________7,200

       AVERAGE LATENCY (mSEC) ___________________4.17

       BUFFER (/optional)________________________512/2048 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________Ultra-SCSI Wide

                                                 ASA II

       BYTES PER TRACK __________________________

       SECTORS PER DRIVE ________________________17,773,440

       TPI (TRACKS PER INCH) ____________________5555

       BPI (BITS PER INCH) ______________________

       AVERAGE ACCESS (ms) (read/write)__________8.2/9.7

         Drive level with controller overhead

       SINGLE TRACK SEEK (ms) ___________________0.8/1.2

       MAX FULL SEEK (ms) _______________________19.2/20.2

       MTBF (power-on hours) ____________________1,000,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.2

                           +12V TYPICAL (amps) __0.8 idle

                           +5V START-UP (amps) __

                           +5V TYPICAL (amps) ___0.97 idle

                           IDLE (watts) _________12.4

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):     1.63/41.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.75/146.1

                        Weight    (lbs/kg):     2.3/1.04

Already low-level formatted at the factory with 16 spare sectors

per cylinder and 1 spare cylinder per unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (09/16/96)


ST-1950N
ST-1950N SCSI-2 Fast

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

         50 pin I/O Cable Connection

         ³

    J1ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ1¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     Íµ:::::::::::::::::::::::::ÆÍ³ 0 0 0 0 ³ÍÍ

      ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

       1ÄÄÄÄÄÄ¿ 1ÄÄÄÄÄÄ¿ 1ÄÄÄÄÄÄ¿

       ÀÄÄÄÄÄÄÙ ÀÄÄÄÂÄÄÙ ÀÄÄÄÄÄÄÙ

        ÀTerminating ResistorsÙ

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º RIGHT SIDE VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Reserved

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)

  ³      Factory Use ÄÄÙ³³ÀÄÄ Motor Start

  ³    Parity Enable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍÍ          ³

    ³                                              ³

    ³  1 2     1 2      1 2                        ³

    ³ ÖÄ·       ÖÄ·    ÖÄÄÄ·  A Drive Supplies Bus ³

    ³ ºøºø     øºøº    ÓøÄø½  B Drive Supplies Own ³

    ³ Óø½ø     øÓø½     ø ø   C Bus Supplies Drive ³

    ³   A       B        C                         ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º LEFT SIDE VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼             If these ID jumpers are used,

                                 then ID jumpers shown in front

                                 view ARE NOT USED.

  FRONT                TOP (HDA)                 J5 ÕÍÍ1¸ ÕÍ¸BACK

   OF   ÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ:::ÆÍµJ1 OF

  DRIVE                BOTTOM                       ÔÍÍÍ¾ ÔÍ¾DRIVE

                                                     ³³³

                   Note:  On early drives  ³   ID 1 ÄÙ³ÀÄ ID 4

                   with PCB# 75782395 or   ³        ID 2

                   #75782485 ID jumpers areÃÄÄ ID 4       ID 1

                   reversed.               ³

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                      TOP (HDA)   J6  ÕÍÍÍÍÍ1¸

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::::ÆÍ

                 *    BOTTOM          ÔÍÍÍÍÍÍ¾

                 ³                     123456

            LED ÄÙ                     ³³³³³³

                                  ID 4 Ù³³³³À Reserved

                                  ID 2 ÄÙ³³ÀÄ Remote LED (pin-3 +5v)

                                  ID 1 ÄÄÙÀÄÄ Spindle Synchronization

                                               (pin-6 REF SIG+)

      If these ID jumper are used, then

         ID jumpers shown in left side

         view ARE NOT USED.

                              ST - 1950N

       UNFORMATTED CAPACITY (MB) ________________953

       FORMATTED CAPACITY (xx SECTORS) (MB) _____803

       AVERAGE SECTORS PER TRACK ________________76

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________20,475

       CYLINDERS ________________________________1,575 (user)

       HEADS ____________________________________13

       DISCS (3.5 in) ___________________________7

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______25.2 to 41.2

       EXTERNAL TRANSFER RATE (mbyte/sec) _______4 Async

       EXTERNAL TRANSFER RATE (mbyte/sec) _______10 Sync

       SPINDLE SPEED (RPM) ______________________4,535

       AVERAGE LATENCY (mSEC) ___________________6.61

       BUFFER ___________________________________256 Kbyte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 Fast

       BYTES PER TRACK __________________________46,550 avg.

       TPI (TRACKS PER INCH) ____________________2,150

       AVERAGE ACCESS (ms) (read/write)__________TBD

         Drive level without controller overhead

       SINGLE TRACK SEEK (ms) ___________________TBD

       MAX FULL SEEK (ms) _______________________TBD

       MTBF (power-on hours) ____________________200,000

       SHOCK (G's):

                operating (Read/Write) __________10

                nonoperating ____________________

       ACOUSTICS (typ/max dBA) __________________/

       POWER REQUIREMENTS: +12V START-UP (amps) _2.0

                           +12V TYPICAL (amps) __0.5

                           +5V TYPICAL (amps) ___0.4

                           TYPICAL (watts) ______11

                           IDLE (watts) _________9

       LANDING ZONE (cyl)________________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

Already low-level formatted at the factory.

ZBR = Zone Bit Recording = Variable sectors per track

Formatted at the factory with 1 spare sector per track

 and two spare cylinders at inner tracks per unit.

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/12/93)


ST-1980N
ST-1980N SCSI-2 Fast (Hawk 1)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

         50 pin I/O Cable Connection

         ³

    J1ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ1¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     Íµ:::::::::::::::::::::::::ÆÍ³ 0 0 0 0 ³ÍÍ

      ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

       1ÄÄÄÄÄÄ¿ 1ÄÄÄÄÄÄ¿ 1ÄÄÄÄÄÄ¿

       ÀÄÄÄÄÄÄÙ ÀÄÄÄÂÄÄÙ ÀÄÄÄÄÄÄÙ

        ÀTerminating ResistorsÙ

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º RIGHT SIDE VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Reserved

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)

  ³      Factory Use ÄÄÙ³³ÀÄÄ Motor Start

  ³    Parity Enable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍÍ          ³

    ³                                              ³

    ³  1 2     1 2      1 2                        ³

    ³ ÖÄ·       ÖÄ·    ÖÄÄÄ·  A Drive Supplies Bus ³

    ³ ºøºø     øºøº    ÓøÄø½  B Drive Supplies Own ³

    ³ Óø½ø     øÓø½     ø ø   C Bus Supplies Drive ³

    ³   A       B        C                         ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º LEFT SIDE VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼             If these ID jumpers are used,

                                 then ID jumpers shown in front

                                 view ARE NOT USED.

  FRONT                TOP (HDA)                 J5 ÕÍÍ1¸ ÕÍ¸BACK

   OF   ÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ:::ÆÍµJ1 OF

  DRIVE                BOTTOM                       ÔÍÍÍ¾ ÔÍ¾DRIVE

                                                     ³³³

                   Note:  On early drives  ³   ID 1 ÄÙ³ÀÄ ID 4

                   with PCB# 75782395 or   ³        ID 2

                   #75782485 ID jumpers areÃÄÄ ID 4       ID 1

                   reversed.               ³

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                      TOP (HDA)   J6  ÕÍÍÍÍÍ1¸

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::::ÆÍ

                 *    BOTTOM          ÔÍÍÍÍÍÍ¾

                 ³                     123456

            LED ÄÙ                     ³³³³³³

                                  ID 4 Ù³³³³À Reserved

                                  ID 2 ÄÙ³³ÀÄ Remote LED (pin-3 +5v)

                                  ID 1 ÄÄÙÀÄÄ Spindle Synchronization

                                               (pin-6 REF SIG+)

      If these ID jumper are used, then

         ID jumpers shown in left side

         view ARE NOT USED.

                              ST - 1980N

                              Hawk 1

       UNFORMATTED CAPACITY (MB) ________________1,021

       FORMATTED CAPACITY (xx SECTORS) (MB) _____860

       AVERAGE SECTORS PER TRACK ________________74

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________22,490

       CYLINDERS ________________________________1,730 (user)

       HEADS ____________________________________13

       DISCS (3.5 in) ___________________________7

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______24.4 to 40.6

       EXTERNAL TRANSFER RATE (mbyte/sec) _______4 Async

       EXTERNAL TRANSFER RATE (mbyte/sec) _______10 Sync

       SPINDLE SPEED (RPM) ______________________5,411

       AVERAGE LATENCY (mSEC) ___________________5.4

       BUFFER ___________________________________256 Kbyte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 Fast

       BYTES PER TRACK __________________________45,434 avg.

       TPI (TRACKS PER INCH) ____________________2,150

       AVERAGE ACCESS (ms) (read/write)__________9.9/10.6

         Drive level without controller overhead

       SINGLE TRACK SEEK (ms) ___________________1.5/2.0

       MAX FULL SEEK (ms) _______________________19.0/20.0

       MTBF (power-on hours) ____________________200,000

       SHOCK (G's):

                operating (Read/Write) __________10

                nonoperating ____________________60

       ACOUSTICS (typ/max dBA) __________________/

       POWER REQUIREMENTS: +12V START-UP (amps) _2.0

                           +12V TYPICAL (amps) __0.5

                           +5V TYPICAL (amps) ___0.4

                           TYPICAL (watts) ______11

                           IDLE (watts) _________9

       LANDING ZONE (cyl)________________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

Already low-level formatted at the factory.

ZBR = Zone Bit Recording = Variable sectors per track

Formatted at the factory with 1 spare sector per track

 and two spare cylinders at inner tracks per unit.

Seagate reserves the right to change, without notice, product

offerings or specifications. (08/09/94)


ST-2106N
ST-2106N (94211-106) Wren 3 HH SCSI

                                              4 2 1 P   Ú12ÄGÄGÄ5Ä¿

     ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿  A B C D E F G H  o o o o   ³ 0 0 0 0 ³ Power

     ³:SCSI:Cable::::pin 1³  o o o o o o o o  o o o o   \Ä1Ä2Ä3Ä4Ä/

    ÍÏÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                                ³   ³

         A-B Not used                           ³   ÀÄ Parity check

         B-C Terminator power from Bus          ÀÄÄÄÄÄ Drive Select ID

         C-D Terminator power from Drive

         D-E Not used

         E-F Not used

         F-G Continuous test seeks

         G-H Motor Start option enable

                             ST-2106N

                        94211-106 WREN 3 HH

       UNFORMATTED CAPACITY (MB) ________________106

       FORMATTED CAPACITY (36 SECTORS) (MB) _____91

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________5,120

       CYLINDERS ________________________________1,022

       HEADS ____________________________________5

       DISCS ____________________________________3

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       TRANSFER RATE (mbytes/sec) _______________1.25

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________8 or 32 Kbyte

         8 Kbyte: FIFO, Non-Adaptive,

          Single-Segmented Buffer

         32 Kbyte: Read Look-Ahead, Non-Adaptive,

          Single-Segmented Buffer

       INTERFACE ________________________________SCSI

       TPI (TRACKS PER INCH) ____________________960

       BPI (BITS PER INCH) ______________________19,058

       AVERAGE ACCESS (ms) ______________________18

       SINGLE TRACK SEEK (ms) ___________________4

       MAX FULL SEEK (ms) _______________________35

       MTBF (power-on hours) ____________________100,000

       POWER REQUIREMENTS: +12V START-UP (amps) _4.5

                           +12V TYPICAL (amps) __1.0

                           +5V START-UP (amps) __1.7

                           +5V TYPICAL (amps) ___1.0

                           TYPICAL (watts) ______18

                           MAXIMUM (watts) ______63

       BUFFERED STEP PULSE RATE (micro sec) _____N/A

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

Already low-level formatted at the factory.

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-2125N
ST-2125N (94221-125) Wren 5 HH SCSI

                                                           Power

       SCSI Cable                             4 2 1 P   Ú12ÄGÄGÄ5Ä¿

     ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸  A B C D E F G H  o o o o   ³ 0 0 0 0 ³

     ³:::::::::::::::::::1³  o o o o o o o o  o o o o   \ÄÄÄÄÄÄÄÄÄ/

    ÍÏÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                                ³   ³     Ú¿ Ú¿ Ú¿

    A-B Not used                                ³   ³     ³³ ³³ ³³

    B-C Terminator power from Bus               ³   ³     ³³ ³³ ³³

    C-D Terminator power from Drive             ³   ³     À1 À1 À1

    D-E Not used                                ³   ³     Terminator

    E-F Not used                                ³   ³     SIPs, pin-1

    F-G Continuous test seeks                   ³   ³     toward rear.

    G-H Motor Start option enable               ³   ³

                                                ³   ÀÄ Parity check

                                                ³

                                Drive Select ID Ù

                                (ID 0 for single

                                 drive system)

                             ST-2125N

                        94221-125/M WREN 5 HH

       UNFORMATTED CAPACITY (MB) ________________125

       FORMATTED CAPACITY (xx SECTORS) (MB) _____107

       AVERAGE SECTORS PER TRACK ________________45

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________4632

       CYLINDERS ________________________________1544

       HEADS ____________________________________3

       DISCS ____________________________________2

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (2,7)

       TRANSFER RATE (mbytes/sec) _______________1.125-1.875

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________32 Kbyte

         Read Look-Ahead, Non-Adaptive,

         Single-Segmented Buffer

       INTERFACE ________________________________SCSI

       TPI (TRACKS PER INCH) ____________________1280

       BPI (BITS PER INCH) ______________________19213

       AVERAGE ACCESS (ms) ______________________18

       SINGLE TRACK SEEK (ms) ___________________4

       MAX FULL SEEK (ms) _______________________40

       MTBF (power-on hours) ____________________100,000

       POWER REQUIREMENTS: +12V START-UP (amps) _4.5

                           +12V TYPICAL (amps) __0.9

                           +5V START-UP (amps) __1.3

                           +5V TYPICAL (amps) ___1.0

                           TYPICAL (watts) ______16

                           MAXIMUM (watts) ______61

       BUFFERED STEP PULSE RATE (micro sec) _____

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

Already low-level formatted at the factory.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-2209N
ST-2209N (94221-209/M) Wren 5 HH SCSI

                                                           Power

       SCSI Cable                             4 2 1 P   Ú12ÄGÄGÄ5Ä¿

     ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸  A B C D E F G H  o o o o   ³ 0 0 0 0 ³

     ³:::::::::::::::::::1³  o o o o o o o o  o o o o   \ÄÄÄÄÄÄÄÄÄ/

    ÍÏÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                                ³   ³     Ú¿ Ú¿ Ú¿

    A-B Not used                                ³   ³     ³³ ³³ ³³

    B-C Terminator power from Bus               ³   ³     ³³ ³³ ³³

    C-D Terminator power from Drive             ³   ³     À1 À1 À1

    D-E Not used                                ³   ³     Terminator

    E-F Not used                                ³   ³     SIPs, pin-1

    F-G Continuous test seeks                   ³   ³     toward rear.

    G-H Motor Start option enable               ³   ³

                                                ³   ÀÄ Parity check

                                                ³

                                Drive Select ID Ù

                                (ID 0 for single

                                 drive system)

                             ST-2209N

                        94221-209/M WREN 5 HH

       UNFORMATTED CAPACITY (MB) ________________209

       FORMATTED CAPACITY (xx SECTORS) (MB) _____179

       AVERAGE SECTORS PER TRACK ________________45

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________7720

       CYLINDERS ________________________________1544

       HEADS ____________________________________5

       DISCS ____________________________________3

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR (RLL (2,7)

       TRANSFER RATE (mbytes/sec) _______________1.125-1.875

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________32 Kbyte

         Read Look-Ahead, Non Adaptive,

         Single-Segmented Buffer

       INTERFACE ________________________________SCSI

       TPI (TRACKS PER INCH) ____________________1280

       BPI (BITS PER INCH) ______________________19213

       AVERAGE ACCESS (ms) ______________________18

       SINGLE TRACK SEEK (ms) ___________________4

       MAX FULL SEEK (ms) _______________________40

       MTBF (power-on hours) ____________________100,000

       POWER REQUIREMENTS: +12V START-UP (amps) _4.5

                           +12V TYPICAL (amps) __0.9

                           +5V START-UP (amps) __1.3

                           +5V TYPICAL (amps) ___1.0

                           TYPICAL (watts) ______16

                           MAXIMUM (watts) ______61

       BUFFERED STEP PULSE RATE (micro sec) _____

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

Already low-level formatted at the factory.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-225N
ST-225N SCSI

                                                5 G G 12

                  ÚSCSI Cable                 /Ä4Ä3Ä2Ä1Ä\

    o o o o   Ú...³.....................¿     ³ O O O O ³ Power

    o o o o    .........................      ÀÄÄÄÄÄÄÄÄÄÙ

  ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÑÍÍÍÑÍÍÍÍÑÍÍÑÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

    1 2 4 P     ÀÄÄÄÄ1   ÀÄÄÄÄ1  ÀÄÄÄÄ1 Terminating Resistors

    ÄÄÂÄÄ ÀÄ Parity Check enable

      ÀÄÄÄÄÄ ID Selects, ID 0 (none) for single drive system

                              ST - 225N

       UNFORMATTED CAPACITY (MB) ________________25

       FORMATTED CAPACITY (17 SECTORS) (MB) _____21.3

       ACTUATOR TYPE ____________________________STEPPER

       TRACKS ___________________________________2,460

       CYLINDERS ________________________________615

       HEADS ____________________________________4

       DISCS ____________________________________2

       MEDIA TYPE _______________________________OXIDE

       RECORDING METHOD _________________________MFM

       TRANSFER RATE (mbits/sec) ________________5.0

       SPINDLE SPEED (RPM) ______________________3,600

       INTERFACE ________________________________SCSI

       TPI (TRACKS PER INCH) ____________________588

       BPI (BITS PER INCH) ______________________9,827

       AVERAGE ACCESS (ms) ______________________65

       SINGLE TRACK SEEK (ms) ___________________20

       MTBF (power-on hours) ____________________100,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.4

                           +12V TYPICAL (amps) __0.9

                           +5V TYPICAL (amps) ___1.2

                           TYPICAL (watts) ______16.8

                           MAXIMUM (watts) ______35

       BUFFERED STEP PULSE RATE (micro sec) _____5-200

       WRITE PRECOMP (cyl) ______________________N/A (616)

       REDUCED WRITE CURRENT (cyl) ______________N/A (616)

       LANDING ZONE (cyl)________________________670

       IBM AT DRIVE TYPE ________________________0 or NONE

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-2383N
ST-2383N (94241-383) Wren 6 HH SCSI and SCSI-2

                            SCSI Cable                   Power

                         ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸   /ÄÄÄÄÄÄÄÄÄ\

   ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ:::::::::::::::::::::::1ÆÍÍÍµ 0 0 0 0 ÆÍÍÍÍ

    o o o o o o o o o o  ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾   ÀÄ5ÄGÄGÄ12Ù

    o o o o o o o o oÄoÄ¿  ÚÄÄÄÄÄ1 ÚÄÄÄÄÄ1 ÚÄÄÄÄÄ1

    R R R P M 4 2 1 ³ ³ ³  ÀÄÄÄÄÄÙ ÀÄÄÄÄÄÙ ÀÄÄÄÄÄÙ

    ÄÄÂÄÄ ³ ³ ÄÄÂÄÄ ³ ³ ³    Terminator SIPS

      ³   ³ ³   ³   ³ ³ ³

      ³   ³ ³   ³   ³ ³ ÀÄ Terminator power +5v from the Bus (lower horizontal)

      ³   ³ ³   ³   ³ ÀÄÄÄ Terminator power +5v from Drive (vertical)

      ³   ³ ³   ³   ÀÄÄÄÄÄ Terminator power +5v to the Bus (vertical)

      ³   ³ ³   ÀÄÄÄÄÄÄÄÄÄ Drive Select ID's

      ³   ³ ÀÄÄÄÄÄÄÄÄÄÄÄÄÄ Motor Start option enable

      ³   ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Parity check enable

      ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Reserved Factory use

                             ST-2383N

                        94241-383 WREN 6 HH

       UNFORMATTED CAPACITY (MB) ________________383

       FORMATTED CAPACITY (xx SECTORS) (MB) _____332

       AVERAGE SECTORS PER TRACK ________________74

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________8827

       CYLINDERS ________________________________1261

       HEADS ____________________________________7

       DISCS ____________________________________4

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (2,7)

       TRANSFER RATE (mbytes/sec) _______________2.25-2.75

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________64 Kbyte

         SCSI-1: Read Look-Ahead, Non-Adaptive,

          Single-Segmented Buffer

         SCSI-2: Read Look-Ahead, Adaptive,

          Multi-Segmented Cache

       INTERFACE ________________________________SCSI

       TPI (TRACKS PER INCH) ____________________1459

       BPI (BITS PER INCH) ______________________31674

       AVERAGE ACCESS (ms) ______________________14

       SINGLE TRACK SEEK (ms) ___________________3

       MAX FULL SEEK (ms) _______________________33

       MTBF (power-on hours) ____________________100,000

       POWER REQUIREMENTS: +12V START-UP (amps) _4.0

                           +12V TYPICAL (amps) __1.0

                           +5V START-UP (amps) __0.75

                           +5V TYPICAL (amps) ___0.65

                           TYPICAL (watts) ______16

                           MAXIMUM (watts) ______58

       BUFFERED STEP PULSE RATE (micro sec) _____

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

Already low-level formatted at the factory.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-2502N
ST-2502N (94241-502) Wren 6 HH SCSI and SCSI-2

                            SCSI Cable                   Power

                         ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸   /ÄÄÄÄÄÄÄÄÄ\

   ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ:::::::::::::::::::::::1ÆÍÍÍµ 0 0 0 0 ÆÍÍÍÍ

    o o o o o o o o o o  ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾   ÀÄ5ÄGÄGÄ12Ù

    o o o o o o o o oÄoÄ¿  ÚÄÄÄÄÄ1 ÚÄÄÄÄÄ1 ÚÄÄÄÄÄ1

    R R R P M 4 2 1 ³ ³ ³  ÀÄÄÄÄÄÙ ÀÄÄÄÄÄÙ ÀÄÄÄÄÄÙ

    ÄÄÂÄÄ ³ ³ ÄÄÂÄÄ ³ ³ ³    Terminator SIPS

      ³   ³ ³   ³   ³ ³ ³

      ³   ³ ³   ³   ³ ³ ÀÄ Terminator power +5v from the Bus (lower horizontal)

      ³   ³ ³   ³   ³ ÀÄÄÄ Terminator power +5v from Drive (vertical)

      ³   ³ ³   ³   ÀÄÄÄÄÄ Terminator power +5v to the Bus (vertical)

      ³   ³ ³   ÀÄÄÄÄÄÄÄÄÄ Drive Select ID's

      ³   ³ ÀÄÄÄÄÄÄÄÄÄÄÄÄÄ Motor Start option enable

      ³   ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Parity check enable

      ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Reserved Factory use

                             ST-2502N

                        94241-502 WREN 6 HH

       UNFORMATTED CAPACITY (MB) ________________502

       FORMATTED CAPACITY (xx SECTORS) (MB) _____435

       AVERAGE SECTORS PER TRACK ________________69

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________12285

       CYLINDERS ________________________________1755

       HEADS ____________________________________7

       DISCS ____________________________________4

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (2,7)

       TRANSFER RATE (mbytes/sec) _______________1.875-2.75

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________64 Kbyte

         SCSI-1: Read Look-Ahead, Non-Adaptive,

          Single-Segmented Buffer

         SCSI-2: Read Look-Ahead, Adaptive,

          Multi-Segmented Cache

       INTERFACE ________________________________SCSI

       TPI (TRACKS PER INCH) ____________________1459

       BPI (BITS PER INCH) ______________________31674

       AVERAGE ACCESS (ms) ______________________16

       SINGLE TRACK SEEK (ms) ___________________3

       MAX FULL SEEK (ms) _______________________33

       MTBF (power-on hours) ____________________100,000

       POWER REQUIREMENTS: +12V START-UP (amps) _4.0

                           +12V TYPICAL (amps) __1.0

                           +5V START-UP (amps) __0.75

                           +5V TYPICAL (amps) ___0.65

                           TYPICAL (watts) ______16

                           MAXIMUM (watts) ______58

       BUFFERED STEP PULSE RATE (micro sec) _____

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

Already low-level formatted at the factory.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-251N
ST-251N SCSI

                                                5 G G 12

                  ÚSCSI Cable                 /Ä4Ä3Ä2Ä1Ä\

    o o o o   Ú...³.....................¿     ³ O O O O ³ Power

    o o o o    .........................      ÀÄÄÄÄÄÄÄÄÄÙ

  ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÑÍÍÍÑÍÍÍÍÑÍÍÑÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

    1 2 4 P     1ÄÄÄÄÙ   1ÄÄÄÄÙ  1ÄÄÄÄÙ Terminating Resistors

    ÄÄÂÄÄ ÀÄ Parity Check enable

      ÀÄÄÄÄÄ ID Selects, ID 0 (none) for single drive system

                          ST - 251N

       UNFORMATTED CAPACITY (MB) ________________51

       FORMATTED CAPACITY (26/34* SECTORS) (MB) _43.1/43.2*

       ACTUATOR TYPE ____________________________STEPPER

       TRACKS ___________________________________3,280/2,520*

       CYLINDERS ________________________________820/630*

       HEADS ____________________________________4

       DISCS ____________________________________2

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL

       TRANSFER RATE (mbits/sec) ________________7.5/10*

       SPINDLE SPEED (RPM) ______________________3,600

       INTERFACE ________________________________SCSI

       TPI (TRACKS PER INCH) ____________________777

       BPI (BITS PER INCH) ______________________14,902/19,869*

       AVERAGE ACCESS (ms) ______________________40/28*

       SINGLE TRACK SEEK (ms) ___________________8

       MTBF (power-on hours) ____________________70,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.0/2.5*

                           +12V TYPICAL (amps) __0.5

                           +5V TYPICAL (amps) ___1.2/1.4*

                           TYPICAL (watts) ______12/13*

                           MAXIMUM (watts) ______30/37*

       BUFFERED STEP PULSE RATE (micro sec) _____3-200

       WRITE PRECOMP (cyl) ______________________N/A (821/631*)

       REDUCED WRITE CURRENT (cyl) ______________N/A (821/631*)

       LANDING ZONE (cyl)________________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       *ST251N-0/ST251N-1

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-277N
ST-277N SCSI

                                                    5 G G 12

                      ÚSCSI Cable                 /Ä4Ä3Ä2Ä1Ä\

    o o o (o) o   Ú...³.....................¿     ³ O O O O ³ Power

    o o o (o) o    ........................1      ÀÄÄÄÄÄÄÄÄÄÙ

  ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÑÍÍÍÑÍÍÍÍÑÍÍÑÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

    1 2 4  ³  P     1ÄÄÄÄÙ   1ÄÄÄÄÙ  1ÄÄÄÄÙ Terminating Resistors

    ÄÄÂÄÄ  ³  ÀÄ Parity Check enable

      ³    ÀÄÄÄÄ Some PWA's have an extra jumper here

      ÀÄÄÄÄÄÄÄÄÄ ID Selects, ID 0 (none) for single drive system

                           ST - 277N

       UNFORMATTED CAPACITY (MB) ________________77

       FORMATTED CAPACITY (26/34* SECTORS) (MB) _64.9

       ACTUATOR TYPE ____________________________STEPPER

       TRACKS ___________________________________4,920/3,768*

       CYLINDERS ________________________________820/628*

       HEADS ____________________________________6

       DISCS ____________________________________3

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       TRANSFER RATE (mbits/sec) ________________7.5/10*

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.3

       INTERFACE ________________________________SCSI

       SECTORS PER DRIVE ________________________126,875

       TPI (TRACKS PER INCH) ____________________777

       BPI (BITS PER INCH) ______________________14,902/19,869*

       AVERAGE ACCESS (ms) ______________________40/28*

       SINGLE TRACK SEEK (ms) ___________________8

       MAX FULL SEEK (ms) _______________________ /70

       MTBF (power-on hours) ____________________70,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.0/2.5*

                           +12V TYPICAL (amps) __0.5

                           +5V TYPICAL (amps) ___1.2/1.4*

                           TYPICAL (watts) ______12/13*

                           MAXIMUM (watts) ______30/37*

       BUFFERED STEP PULSE RATE (micro sec) _____3-200

       WRITE PRECOMP (cyl) ______________________N/A (821/629*)

       REDUCED WRITE CURRENT (cyl) ______________N/A (821/629*)

       LANDING ZONE (cyl)________________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       *ST277N-0/ST277N-1

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-296N
ST-296N SCSI

                                                    5 G G 12

                      ÚSCSI Cable                 /Ä4Ä3Ä2Ä1Ä\

    o o o (o) o   Ú...³.....................¿     ³ O O O O ³ Power

    o o o (o) o    ........................1      ÀÄÄÄÄÄÄÄÄÄÙ

  ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÑÍÍÍÑÍÍÍÍÑÍÍÑÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

    1 2 4  ³  P     1ÄÄÄÄÙ   1ÄÄÄÄÙ  1ÄÄÄÄÙ Terminating Resistors

    ÄÄÂÄÄ  ³  ÀÄ Parity Check enable

      ³    ÀÄÄÄÄ Some PWA's have an extra jumper here

      ÀÄÄÄÄÄÄÄÄÄ ID Selects, ID 0 (none) for single drive system

                              ST - 296N

       UNFORMATTED CAPACITY (MB) ________________96

       FORMATTED CAPACITY (34 SECTORS) (MB) _____84.9

       ACTUATOR TYPE ____________________________STEPPER

       TRACKS ___________________________________4,920

       CYLINDERS ________________________________820

       HEADS ____________________________________6

       DISCS ____________________________________3

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       TRANSFER RATE (mbits/sec) ________________10

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.3

       INTERFACE ________________________________SCSI

       SECTORS PER DRIVE ________________________165,851

       TPI (TRACKS PER INCH) ____________________777

       BPI (BITS PER INCH) ______________________19,869

       AVERAGE ACCESS (ms) ______________________28

       SINGLE TRACK SEEK (ms) ___________________8

       MAX FULL SEEK (ms) _______________________ /70

       MTBF (power-on hours) ____________________70,000

       POWER REQUIREMENTS: +12V START-UP (amps) _2.5

                           +12V TYPICAL (amps) __0.5

                           +5V TYPICAL (amps) ___1.4

                           TYPICAL (watts) ______13

                           MAXIMUM (watts) ______37

       BUFFERED STEP PULSE RATE (micro sec) _____3-200

       WRITE PRECOMP (cyl) ______________________N/A (821)

       REDUCED WRITE CURRENT (cyl) ______________N/A (821)

       LANDING ZONE (cyl)________________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-31051N
ST-31051N SCSI-2 Fast (Hawk 2XL)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-31051N)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

         50 pin I/O Cable Connection

         ³

    J1ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ1¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     Íµ:::::::::::::::::::::::::ÆÍ³ 0 0 0 0 ³ÍÍ

      ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º RIGHT SIDE VIEW º  (ST-31051N)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Enable T-Res

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)

  ³         Reserved ÄÄÙ³³ÀÄÄ Motor Start

  ³   Parity Disable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍÍ          ³

    ³                                              ³

    ³  1 2     1 2      1 2                        ³

    ³ ÖÄ·       ÖÄ·    ÖÄÄÄ·  A Drive Supplies Bus ³

    ³ ºøºø     øºøº    ÓøÄø½  B Drive Supplies Own ³

    ³ Óø½ø     øÓø½     ø ø   C Bus Supplies Drive ³

    ³   A       B        C                         ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (ST-31051N)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                                  ÚÄÄ´Reserved. Shipped with cover installed.

                                  ³  ÀDo not remove. Do not install jumpers

                      TOP (HDA)  ÕØÍÍÍ¸     1

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::³::::::ÆÍÍ

                 *    BOTTOM     ÔÍÍÍÍ¾123456

                 ³               J6    ³³³³³³

            LED ÄÙ                     ³³³³³³

                            Remote LED Ù³³³³À ID 1

                           (pin-11 +5v) ³³³ÀÄ ID 2

                              Reserved ÄÁÙÀÄÄ ID 4

                            ST-31051N

       FORMATTED CAPACITY (MB) __________________1060

       AVERAGE SECTORS PER TRACK ________________123 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________16,704

       CYLINDERS ________________________________4,176 user

       HEADS ______PHYSICAL______________________4

       DISCS (3.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (0,4,4)

       INTERNAL TRANSFER RATE (mbits/sec)________44 to 66

       EXTERNAL TRANSFER RATE (mbyte/sec) _______10 Sync

       SPINDLE SPEED (RPM) ______________________5,411

       AVERAGE LATENCY (mSEC) ___________________5.54

       BUFFER ___________________________________256 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 Fast

                                                 ASA II

       BYTES PER TRACK (avg) ____________________75,900

       SECTORS PER DRIVE ________________________

       TPI (TRACKS PER INCH) ____________________4800

       BPI (BITS PER INCH) ______________________

       AVERAGE ACCESS (ms) (read/write)__________10.4/11.4

        With controller overhead

       SINGLE TRACK SEEK (ms) ___________________2.7

       MAX FULL SEEK (ms) _______________________20.4

       MTBF (power-on hours) ____________________800,000

       POWER REQUIREMENTS: +12V START-UP (amps) _1.8

                           +12V TYPICAL (amps) __0.34 idle

                           +5V START-UP (amps) __1.0

                           +5V TYPICAL (amps) ___0.32 idle

                           IDLE (watts) _________

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):        1/25.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.75/146.1

                        Weight    (lbs/kg):      1.5/0.68

Already low-level formatted at the factory with 5 spare sectors

per cylinder and 2 spare cylinder per unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (05/20/96)


ST-31051W
ST-31051W/WC Fast Wide SCSI-2 (Hawk 2XL)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-31051W only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

        (TOP)                   Auxiliary

          ___________________  ÚÄÄ  Ä1¿/ÍÍÍÍÍÍÍÍÍ\

        Í( ×××××××××××××××××1)Í³::::::³³ 0 0 0 0 ÆÍ

          \ÄÄÄÄÄÄÄÄÄÄÄÄ³ÄÄÄÄ/  À  ÄÄ  ÙÀÄ5ÄGÄGÄ12Ù

       68 pin I/O CableÙ        ³³³³³³

       Connection Male          ³³³³³³

                                ³³³³³³

                                ³³³³³³

        Auxiliary option header ³³³³³³

           pin-11 +5v  ÄÄÄÄÄÄÄÄÄÙ³³³³³

           pin-10 GND  ÄÄÄÄÄÄÄÄÄÄÙ³³³³

           SCSI ID = 8 ÄÄÄÄÄÄÄÄÄÄÄÙ³³³

           SCSI ID = 4 ÄÄÄÄÄÄÄÄÄÄÄÄ´³³

            or pin-6 REFIND+ ÄÄÄÄÄÄÙ³³

           SCSI ID = 2 ÄÄÄÄÄÄÄÄÄÄÄÄÄÙ³

           SCSI ID = 1 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

           SCSI ID = 0 (none)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-31051WC only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                     80 pin I/O and DC Power Wall/bracket Connection

                     ³  Female

    J1          /ÄÄÄÄ³ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ\      TOP (HDA)

     ÍÍÍÍÍÍÍÍÍÍ/ ×××××××××××××××××××× \ÍÍÍÍÍÍÍÍÍÍ

              (\Ä1ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ40/)    BOTTOM

     Notes on 80 pin I/O connector:

       pins  1 -  4 = +12v        41 - 44 = 12v GND

            34 - 36 = +5v         74 - 76 = 5v GND

                 37 = SYNC             77 = LEDC

                 38 = MTRON            78 = DLYDST

                 39 = SCSIA0           79 = SCSIA1

                 40 = SCSIA2           80 = SCSIA3

  Mating NC connector: AMP US p/n: 2-557103-1 straight-in, Male 80-pin

                                   2-557101-1 right angle to PCB

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º RIGHT SIDE VIEW º  (ST-31051W/WC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

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DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Enable T-Res (not used on WC model)

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)

  ³         Reserved ÄÄÙ³³ÀÄÄ Motor Start

  ³   Parity Disable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍÍ          ³

    ³                                              ³

    ³  1 2     1 2      1 2                        ³

    ³ ÖÄ·       ÖÄ·    ÖÄÄÄ·  A Drive Supplies Bus ³

    ³ ºøºø     øºøº    ÓøÄø½  B Drive Supplies Own ³

    ³ Óø½ø     øÓø½     ø ø   C Bus Supplies Drive ³

    ³   A       B        C                         ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

     (not used on WC model)

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (ST-31051W/WC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                                  ÚÄÄ´Reserved. Shipped with cover installed.

                                  ³  ÀDo not remove. Do not install jumpers

                      TOP (HDA)  ÕØÍÍÍ¸     1

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::³::::::ÆÍÍ

                 *    BOTTOM     ÔÍÍÍÍ¾123456

                 ³               J6    ³³³³³³

            LED ÄÙ                     ³³³³³³

                            Remote LED Ù³³³³À ID 1

                           (pin-11 +5v) ³³³ÀÄ ID 2

                              Reserved ÄÙ³ÀÄÄ ID 4

                                         ÀÄÄÄ ID 8

                            ST-31051W

       FORMATTED CAPACITY (MB) __________________1060

       AVERAGE SECTORS PER TRACK ________________123 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________16,704

       CYLINDERS ________________________________4,176 user

       HEADS ______PHYSICAL______________________4

       DISCS (3.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (0,4,4)

       INTERNAL TRANSFER RATE (mbits/sec)________44 to 66

       EXTERNAL TRANSFER RATE (mbyte/sec) _______20 Sync

       SPINDLE SPEED (RPM) ______________________5,411

       AVERAGE LATENCY (mSEC) ___________________5.54

       BUFFER ___________________________________512 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 Fast

                                                 ASA II

       BYTES PER TRACK (avg) ____________________75,900

       SECTORS PER DRIVE ________________________

       TPI (TRACKS PER INCH) ____________________4800

       BPI (BITS PER INCH) ______________________

       AVERAGE ACCESS (ms) (read/write)__________10.4/11.4

        With controller overhead

       SINGLE TRACK SEEK (ms) ___________________2.7

       MAX FULL SEEK (ms) _______________________20.4

       MTBF (power-on hours) ____________________800,000

       POWER REQUIREMENTS: +12V START-UP (amps) _1.8

                           +12V TYPICAL (amps) __0.34 idle

                           +5V START-UP (amps) __1.0

                           +5V TYPICAL (amps) ___0.32 idle

                           IDLE (watts) _________6.3

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):        1/25.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.75/146.1

                        Weight    (lbs/kg):      1.5/0.68

Already low-level formatted at the factory with 5 spare sectors

per cylinder and 2 spare cylinder per unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (05/20/96)


ST-31055N
ST-31055N Ultra-SCSI (Hawk 2XL)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-31055N)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

         50 pin I/O Cable Connection

         ³

    J1ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ1¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     Íµ:::::::::::::::::::::::::ÆÍ³ 0 0 0 0 ³ÍÍ

      ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º RIGHT SIDE VIEW º  (ST-31055N)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Enable T-Res

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)

  ³         Reserved ÄÄÙ³³ÀÄÄ Motor Start

  ³   Parity Disable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍÍ          ³

    ³                                              ³

    ³  1 2     1 2      1 2                        ³

    ³ ÖÄ·       ÖÄ·    ÖÄÄÄ·  A Drive Supplies Bus ³

    ³ ºøºø     øºøº    ÓøÄø½  B Drive Supplies Own ³

    ³ Óø½ø     øÓø½     ø ø   C Bus Supplies Drive ³

    ³   A       B        C                         ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (ST-31055N)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                                  ÚÄÄ´Reserved. Shipped with cover installed.

                                  ³  ÀDo not remove. Do not install jumpers

                      TOP (HDA)  ÕØÍÍÍ¸     1

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::³::::::ÆÍÍ

                 *    BOTTOM     ÔÍÍÍÍ¾123456

                 ³               J6    ³³³³³³

            LED ÄÙ                     ³³³³³³

                            Remote LED Ù³³³³À ID 1

                           (pin-11 +5v) ³³³ÀÄ ID 2

                              Reserved ÄÁÙÀÄÄ ID 4

                            ST-31055N

       FORMATTED CAPACITY (MB) __________________1060

       AVERAGE SECTORS PER TRACK ________________123 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________16,704

       CYLINDERS ________________________________4,176 user

       HEADS ______PHYSICAL______________________4

       DISCS (3.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (0,4,4)

       INTERNAL TRANSFER RATE (mbits/sec)________44 to 66

       EXTERNAL TRANSFER RATE (mbyte/sec) _______20 Sync

       SPINDLE SPEED (RPM) ______________________5,411

       AVERAGE LATENCY (mSEC) ___________________5.54

       BUFFER ___________________________________512 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________Ultra-SCSI

                                                 ASA II

       BYTES PER TRACK (avg) ____________________75,900

       SECTORS PER DRIVE ________________________

       TPI (TRACKS PER INCH) ____________________4800

       BPI (BITS PER INCH) ______________________

       AVERAGE ACCESS (ms) (read/write)__________10.4/11.4

        With controller overhead

       SINGLE TRACK SEEK (ms) ___________________2.7

       MAX FULL SEEK (ms) _______________________20.4

       MTBF (power-on hours) ____________________800,000

       POWER REQUIREMENTS: +12V START-UP (amps) _1.8

                           +12V TYPICAL (amps) __0.34 idle

                           +5V START-UP (amps) __1.0

                           +5V TYPICAL (amps) ___0.32 idle

                           IDLE (watts) _________

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):        1/25.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.75/146.1

                        Weight    (lbs/kg):      1.5/0.68

Already low-level formatted at the factory with 5 spare sectors

per cylinder and 2 spare cylinder per unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (05/20/96)


ST-31055W
ST-31055W/WC Utra-SCSI Wide (Hawk 2XL)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-31055W only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

        (TOP)                   Auxiliary

          ___________________  ÚÄÄ  Ä1¿/ÍÍÍÍÍÍÍÍÍ\

        Í( ×××××××××××××××××1)Í³::::::³³ 0 0 0 0 ÆÍ

          \ÄÄÄÄÄÄÄÄÄÄÄÄ³ÄÄÄÄ/  À  ÄÄ  ÙÀÄ5ÄGÄGÄ12Ù

       68 pin I/O CableÙ        ³³³³³³

       Connection Male          ³³³³³³

                                ³³³³³³

                                ³³³³³³

        Auxiliary option header ³³³³³³

           pin-11 +5v  ÄÄÄÄÄÄÄÄÄÙ³³³³³

           pin-10 GND  ÄÄÄÄÄÄÄÄÄÄÙ³³³³

           SCSI ID = 8 ÄÄÄÄÄÄÄÄÄÄÄÙ³³³

           SCSI ID = 4 ÄÄÄÄÄÄÄÄÄÄÄÄ´³³

            or pin-6 REFIND+ ÄÄÄÄÄÄÙ³³

           SCSI ID = 2 ÄÄÄÄÄÄÄÄÄÄÄÄÄÙ³

           SCSI ID = 1 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

           SCSI ID = 0 (none)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-31055WC only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                     80 pin I/O and DC Power Wall/bracket Connection

                     ³  Female

    J1          /ÄÄÄÄ³ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ\      TOP (HDA)

     ÍÍÍÍÍÍÍÍÍÍ/ ×××××××××××××××××××× \ÍÍÍÍÍÍÍÍÍÍ

              (\Ä1ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ40/)    BOTTOM

     Notes on 80 pin I/O connector:

       pins  1 -  4 = +12v        41 - 44 = 12v GND

            34 - 36 = +5v         74 - 76 = 5v GND

                 37 = SYNC             77 = LEDC

                 38 = MTRON            78 = DLYDST

                 39 = SCSIA0           79 = SCSIA1

                 40 = SCSIA2           80 = SCSIA3

  Mating NC connector: AMP US p/n: 2-557103-1 straight-in, Male 80-pin

                                   2-557101-1 right angle to PCB

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º RIGHT SIDE VIEW º  (ST-31055W/WC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Enable T-Res (not used on WC model)

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)

  ³         Reserved ÄÄÙ³³ÀÄÄ Motor Start

  ³   Parity Disable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍÍ          ³

    ³                                              ³

    ³  1 2     1 2      1 2                        ³

    ³ ÖÄ·       ÖÄ·    ÖÄÄÄ·  A Drive Supplies Bus ³

    ³ ºøºø     øºøº    ÓøÄø½  B Drive Supplies Own ³

    ³ Óø½ø     øÓø½     ø ø   C Bus Supplies Drive ³

    ³   A       B        C                         ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

     (not used on WC model)

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (ST-31055W/WC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                                  ÚÄÄ´Reserved. Shipped with cover installed.

                                  ³  ÀDo not remove. Do not install jumpers

                      TOP (HDA)  ÕØÍÍÍ¸     1

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::³::::::ÆÍÍ

                 *    BOTTOM     ÔÍÍÍÍ¾123456

                 ³               J6    ³³³³³³

            LED ÄÙ                     ³³³³³³

                            Remote LED Ù³³³³À ID 1

                           (pin-11 +5v) ³³³ÀÄ ID 2

                              Reserved ÄÙ³ÀÄÄ ID 4

                                         ÀÄÄÄ ID 8

                            ST-31055W

       FORMATTED CAPACITY (MB) __________________1060

       AVERAGE SECTORS PER TRACK ________________123 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________16,704

       CYLINDERS ________________________________4,176 user

       HEADS ______PHYSICAL______________________4

       DISCS (3.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (0,4,4)

       INTERNAL TRANSFER RATE (mbits/sec)________44 to 66

       EXTERNAL TRANSFER RATE (mbyte/sec) _______40 Sync

       SPINDLE SPEED (RPM) ______________________5,411

       AVERAGE LATENCY (mSEC) ___________________5.54

       BUFFER ___________________________________512 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________Ultra-SCSI

                                                 ASA II

       BYTES PER TRACK (avg) ____________________75,900

       SECTORS PER DRIVE ________________________

       TPI (TRACKS PER INCH) ____________________4800

       BPI (BITS PER INCH) ______________________

       AVERAGE ACCESS (ms) (read/write)__________10.4/11.4

        With controller overhead

       SINGLE TRACK SEEK (ms) ___________________2.5

       MAX FULL SEEK (ms) _______________________20.4

       MTBF (power-on hours) ____________________800,000

       POWER REQUIREMENTS: +12V START-UP (amps) _1.8

                           +12V TYPICAL (amps) __0.34 idle

                           +5V START-UP (amps) __1.0

                           +5V TYPICAL (amps) ___0.32 idle

                           IDLE (watts) _________

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):        1/25.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.75/146.1

                        Weight    (lbs/kg):      1.5/0.68

Already low-level formatted at the factory with 5 spare sectors

per cylinder and 2 spare cylinder per unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (05/20/96)


ST-31060N
ST-31060N SCSI-2 FAST, (Barbados CFP1060S)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                  50 pin I/O Cable Connection J2

                  ³

               ÕÍÍÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

             ÍÍµ::::::::::::::::::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

             J1ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                ÚÄÄTResÄÄ1    ÚÄÄTResÄÄ1

                ÀÄÄÄÄÄÄÄÄÙ    ÀÄÄÄÄÄÄÄÄÙ

                          oÂo             o o   ÄÄÄÄ Parity Disable

                           ³              o o   ÄÄÄÄ Delay Spin

               Term Power ÄÙ              o o   ÄÄÄÄ Disable Spin

        Open = Power from drive           o o   ÄÄÄÄ Reserved

      Closed = Power from interface       o o   ÄÄÄÄ ID 4

                                          o o   ÄÄÄÄ ID 2

                                          o o   ÄÄÄÄ ID 1

                                             J7      ID 0 = no ID jumpers

                                                     (front)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-31060NC only, see adapter note below)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                     80 pin I/O and DC Power Wall/bracket Connection

                     ³

    J1          /ÄÄÄÄ³ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ\      TOP (HDA)

     ÍÍÍÍÍÍÍÍÍÍ/ ×××××××××××××××××××× \ÍÍÍÍÍÍÍÍÍÍ

              (\Ä1ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ40/)    BOTTOM

     Notes on 80 pin I/O connector:

       pins  1 -  4 = +12v        41 - 44 = 12v GND

            34 - 36 = +5v         74 - 76 = 5v GND

                 37 = SYNC             77 = LEDC

                 38 = MTRON            78 = DLYDST

                 39 = SCSIA0           79 = SCSIA1

                 40 = SCSIA2           80 = SCSIA3

    ST-31060N only

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

               ÚÄÄÄÄÄÄÄÄÄÄÄÄÄ Disable Spin

               ³ ÚÄÄÄÄÄÄÄÄÄÄÄ Reserved

               ³ ³   ÚÄÄÄÄÄÄÄ SCSI ID's (none for ID0)

  (TOP)        ³ ³   ³

               ³ ³ ÚÄÁÄ¿          J3

               ³ ³ 4 2 1

               o o o o o    o o o o o   o o

             Í o o o o oÍÍÍ   o o o o   o o ÍÍÍÍÍÍÍÍPWAÍÍÍÍÍÍÍÍÍÍ

                            ³ ÀÄÄÂÄÄÙ   ³ ³

  (BOTTOM)      J6          ³    ³      ³ ÀÄÄ Spindle Synch

                            ³    ³      ÀÄÄÄÄ LED Driver

                            ³    ÀÄÄÄÄÄÄÄÄÄÄÄ Reserved

                            ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ pin removed

                            ST-31060N Barbados

       FORMATTED CAPACITY (MB) __________________1062.44

       AVERAGE SECTORS PER TRACK ________________94 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________22,056

       CYLINDERS ________________________________2757 user

       HEADS ______PHYSICAL______________________8

       DISCS (3.5 in) ___________________________4

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec)________31 to 55

       EXTERNAL TRANSFER RATE (mbyte/sec) _______10 Sync

       SPINDLE SPEED (RPM) ______________________5,400

       AVERAGE LATENCY (mSEC) ___________________5.55

       BUFFER ___________________________________512 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 Fast

       BYTES PER TRACK (avg) ____________________

       SECTORS PER DRIVE ________________________

       TPI (TRACKS PER INCH) ____________________3147

       BPI (BITS PER INCH) ______________________65,131

       AVERAGE ACCESS (ms) (read/write)__________9.0/9.5

       SINGLE TRACK SEEK (ms) ___________________2

       MAX FULL SEEK (ms) _______________________16

       MTBF (power-on hours) ____________________500,000

       SHOCK (G's):

                operating (Read/Write) __________5

                nonoperating ____________________75

       ACOUSTICS (typ/max dBA) __________________43/

       POWER REQUIREMENTS: +12V START-UP (amps) _1.7

                           +12V TYPICAL (amps) __.3

                           +5V START-UP (amps) __.775

                           +5V TYPICAL (amps) ___.6

                           IDLE (watts) _________6.6

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):        1/25.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.75/146.1

                        Weight    (lbs/kg):      1.3/0.59

Already low-level formatted at the factory with x spare sectors

per cylinder and x spare cylinder per unit.

ZBR = Zone Bit Recording = Variable sectors per track

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º  Adapter  º  (A small quantity of drives shipped with adapters.)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

             50 pin I/O Cable Connection

             ³

          ÕÍÍÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\

    ÉÍÍÍÍÍµ::::::::::::::::::::::::1ÆÍ³ 0 0 0 0 ³ÍÍÍ»

    º J3  ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù   º

    º  ÚÄÄTResÄÄ1ÚÄÄTResÄÄ1ÚÄÄTResÄÄ1   ÚÄÄÄÄÄÄÄÄÄ¿ º

    º  ÀÄÄÄÄÄÄÄÄÙÀÄÄÄÄÄÄÄÄÙÀÄÄÄÄÄÄÄÄÙ   ³Jumpers  ÃÄÄÄ¿

    º J2         /ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ\ ÀÄÄÄÄÄÄÄÄÄÙ º ³

    ÈÍÍÍÍÍÍÍÍÍÍÍÍ/ ×××××××××××××××××××× \ÍÍÍÍÍÍÍÍÍÍÍ¼ ³

                (\Ä1ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ40/)            ³

                                                      ³

             80 pin I/O and DC Power                  ³

                                                      ³

                                                      ³

           (Horizontal style)  ÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÙ

                                          ³

                    DS                    ³

            o o o o o o                   ³

            o o o o o o                   ³

            x 4 2 1   RS               (Vertical style)

            ³ ÀÄÂÄÙ   ³

            ³   ³     ÀÄ Remote Start ÄÄÄ RS  o o

            ³   ³                       ÚÄ 1  o o

            ³   ÀÄÄ SCSI ID's (none ÄÄÄÄ´  2  o o

            ³        for ID0)           ÀÄ 4  o o

            ÀÄÄÄÄÄÄ Not used ÄÄÄÄÄÄÄÄÄÄÄÄÄ x  o o

                    Delayed Start ÄÄÄÄÄÄÄ DS  o o

Seagate reserves the right to change, without notice, product

offerings or specifications. (09/09/96)


ST-31060W
ST-31060W SCSI-2 FAST Wide, (Barbados CFP1060W)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»                         ÚÄÄÄÄ ID 8  Auxilary

  º REAR VIEW º                         ³ÚÄÄÄ ID 4

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼                         ³³ÚÄÄ ID 2

                        (TOP)           ³³³ÚÄ ID 1

                 68 pin I/O Cable       ³³³³

                ___________________  ÚÄÄ  Ä1¿/ÍÍÍÍÍÍÍÍÍ\

              Í( ×××××××××××××××××1)Í³::::::³³ 0 0 0 0 ÆÍ

                \ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ/  À  ÄÄ  ÙÀÄ5ÄGÄGÄ12Ù

                 ÚÄÄTResÄÄ1         ÚÄÄTResÄÄ1

                 ÀÄÄÄÄÄÄÄÄÙ   oÂo   ÀÄÄÄÄÄÄÄÄÙ

                 ÚÄÄTResÄÄ1    ³

                 ÀÄÄÄÄÄÄÄÄÙ    ³                      (back)

                               ³

                               ³           o o   ÄÄÄÄ Parity Disable

                 Term Power ÄÄÄÙ           o o   ÄÄÄÄ Delay Spin

          Open = Power from drive          o o   ÄÄÄÄ Disable Spin

        Closed = Power from interface      o o   ÄÄÄÄ ID 8

                                           o o   ÄÄÄÄ ID 4

                                           o o   ÄÄÄÄ ID 2

                                           o o   ÄÄÄÄ ID 1

                                              J7      ID 0 = no ID jumpers

                                                      (front)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-31060WC only, see adapter note below)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                     80 pin I/O and DC Power Wall/bracket Connection

                     ³

    J1          /ÄÄÄÄ³ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ\      TOP (HDA)

     ÍÍÍÍÍÍÍÍÍÍ/ ×××××××××××××××××××× \ÍÍÍÍÍÍÍÍÍÍ

              (\Ä1ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ40/)    BOTTOM

     Notes on 80 pin I/O connector:

       pins  1 -  4 = +12v        41 - 44 = 12v GND

            34 - 36 = +5v         74 - 76 = 5v GND

                 37 = SYNC             77 = LEDC

                 38 = MTRON            78 = DLYDST

                 39 = SCSIA0           79 = SCSIA1

                 40 = SCSIA2           80 = SCSIA3

    ST-31060W only

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

  (TOP)

                              J3

                        o o o o o   o o

               ÍÍÍÍÍÍÍÍ   o o o o   o o ÍÍÍÍÍÍÍÍPWAÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                        ³ ÀÄÄÂÄÄÙ   ³ ³

  (BOTTOM)              ³    ³      ³ ÀÄÄ Spindle Synch

                        ³    ³      ÀÄÄÄÄ LED Driver

                        ³    ÀÄÄÄÄÄÄÄÄÄÄÄ Reserved

                        ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ pin removed

                            ST-31060W Barbados

       FORMATTED CAPACITY (MB) __________________1062.44

       AVERAGE SECTORS PER TRACK ________________94 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________22,056

       CYLINDERS ________________________________2757 user

       HEADS ______PHYSICAL______________________8

       DISCS (3.5 in) ___________________________4

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec)________31 to 55

       EXTERNAL TRANSFER RATE (mbyte/sec) _______20 Sync

       SPINDLE SPEED (RPM) ______________________5,400

       AVERAGE LATENCY (mSEC) ___________________5.55

       BUFFER ___________________________________512 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 Fast Wide

       BYTES PER TRACK (avg) ____________________

       SECTORS PER DRIVE ________________________

       TPI (TRACKS PER INCH) ____________________3147

       BPI (BITS PER INCH) ______________________65,131

       AVERAGE ACCESS (ms) (read/write)__________9.0/9.5

       SINGLE TRACK SEEK (ms) ___________________2

       MAX FULL SEEK (ms) _______________________16

       MTBF (power-on hours) ____________________500,000

       SHOCK (G's):

                operating (Read/Write) __________5

                nonoperating ____________________75

       ACOUSTICS (typ/max dBA) __________________43/

       POWER REQUIREMENTS: +12V START-UP (amps) _1.7

                           +12V TYPICAL (amps) __.3

                           +5V START-UP (amps) __.775

                           +5V TYPICAL (amps) ___.6

                           IDLE (watts) _________6.6

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):        1/25.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.75/146.1

                        Weight    (lbs/kg):      1.3/0.59

Already low-level formatted at the factory with x spare sectors

per cylinder and x spare cylinder per unit.

ZBR = Zone Bit Recording = Variable sectors per track

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º  Adapter  º  (A small quantity of drives shipped with adapters.)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

             50 pin I/O Cable Connection

             ³

          ÕÍÍÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\

    ÉÍÍÍÍÍµ::::::::::::::::::::::::1ÆÍ³ 0 0 0 0 ³ÍÍÍ»

    º J3  ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù   º

    º  ÚÄÄTResÄÄ1ÚÄÄTResÄÄ1ÚÄÄTResÄÄ1   ÚÄÄÄÄÄÄÄÄÄ¿ º

    º  ÀÄÄÄÄÄÄÄÄÙÀÄÄÄÄÄÄÄÄÙÀÄÄÄÄÄÄÄÄÙ   ³Jumpers  ÃÄÄÄ¿

    º J2         /ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ\ ÀÄÄÄÄÄÄÄÄÄÙ º ³

    ÈÍÍÍÍÍÍÍÍÍÍÍÍ/ ×××××××××××××××××××× \ÍÍÍÍÍÍÍÍÍÍÍ¼ ³

                (\Ä1ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ40/)            ³

                                                      ³

             80 pin I/O and DC Power                  ³

                                                      ³

                                                      ³

           (Horizontal style)  ÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÙ

                                          ³

                    DS                    ³

            o o o o o o                   ³

            o o o o o o                   ³

            8 4 2 1   RS               (Vertical style)

            ÀÄÄÄÂÄÙ   ³

                ³     ÀÄ Remote Start ÄÄÄ RS  o o

                ³                       ÚÄ 1  o o

                ÀÄÄ SCSI ID's (none ÄÄÄÄ´  2  o o

                     for ID0)           ³  4  o o

                                        ÀÄ 8  o o

                    Delayed Start ÄÄÄÄÄÄÄ DS  o o

Seagate reserves the right to change, without notice, product

offerings or specifications. (09/09/96)


ST-31080N
ST-31080N SCSI-2 FAST, (Antigua CFP1080S)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                  50 pin I/O Cable Connection J2

                  ³

               ÕÍÍÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

             ÍÍµ::::::::::::::::::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

             J1ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                ÚÄÄTResÄÄ1    ÚÄÄTResÄÄ1

                ÀÄÄÄÄÄÄÄÄÙ    ÀÄÄÄÄÄÄÄÄÙ

                       oÂo               o o o o

                        ³                o o o o  J4 Options

            Term Power ÄÙ                ³ ³ ³ ³

     Open = Power from drive             ³ ³ ³ ÀÄÄ Disable Spin

   Closed = Power from interface         ³ ³ ÀÄÄÄÄ ID 4

                                         ³ ÀÄÄÄÄÄÄ ID 2

                                         ÀÄÄÄÄÄÄÄÄ ID 1

                                                   ID 0 no jumpers

    ST-31080N

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

                 ÚÄÄÄÄÄÄÄÄÄÄÄ Disable Spin

                 ³   ÚÄÄÄÄÄÄÄ SCSI ID's (none for ID0)

  (TOP)          ³   ³

                 ³ ÚÄÁÄ¿          J3

                 ³ 4 2 1

                 o o o o    o o o o o   o o

               Í o o o oÍÍÍ   o o o o   o o ÍÍÍÍÍÍÍÍPWAÍÍÍÍÍÍÍÍÍÍ

                            ³ ÀÄÄÂÄÄÙ   ³ ³

  (BOTTOM)      J6          ³    ³      ³ ÀÄÄ Spindle Synch

                            ³    ³      ÀÄÄÄÄ LED Driver

                            ³    ÀÄÄÄÄÄÄÄÄÄÄÄ Reserved

                            ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ pin removed

                            ST-31080N Antigua

       FORMATTED CAPACITY (MB) __________________1080

       AVERAGE SECTORS PER TRACK ________________96 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________21,948

       CYLINDERS ________________________________3658 user

       HEADS ______PHYSICAL______________________6

       DISCS (3.5 in) ___________________________3

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec)________31.5 to 55.7

       EXTERNAL TRANSFER RATE (mbyte/sec) _______10 Sync

       SPINDLE SPEED (RPM) ______________________5,400

       AVERAGE LATENCY (mSEC) ___________________5.55

       BUFFER ___________________________________256/512 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 Fast

       BYTES PER TRACK (avg) ____________________

       SECTORS PER DRIVE ________________________

       TPI (TRACKS PER INCH) ____________________3849

       BPI (BITS PER INCH) ______________________64K

       AVERAGE ACCESS (ms) (read/write)__________11/11.5

       SINGLE TRACK SEEK (ms) ___________________3

       MAX FULL SEEK (ms) _______________________26

       MTBF (power-on hours) ____________________500,000

       SHOCK (G's):

                operating (Read/Write) __________5

                nonoperating ____________________75

       ACOUSTICS (typ/max dBA) __________________<43/

       POWER REQUIREMENTS: +12V START-UP (amps) _1.5

                           +12V TYPICAL (amps) __.2

                           +5V START-UP (amps) __.5

                           +5V TYPICAL (amps) ___.275

                           IDLE (watts) _________3.75

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):        1/25.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.75/146.1

                        Weight    (lbs/kg):      1.3/0.59

Already low-level formatted at the factory with x spare sectors

per cylinder and x spare cylinder per unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (03/13/96)


ST-31200N
ST-31200N SCSI-2 Fast (Hawk 1LP)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-31200N only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

         50 pin I/O Cable Connection

         ³

    J1ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ1¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     Íµ:::::::::::::::::::::::::ÆÍ³ 0 0 0 0 ³ÍÍ

      ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-31200NC only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                     80 pin I/O and DC Power Wall/bracket Connection

                     ³

    J1          /ÄÄÄÄ³ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ\      TOP (HDA)

     ÍÍÍÍÍÍÍÍÍÍ/ ×××××××××××××××××××× \ÍÍÍÍÍÍÍÍÍÍ

              (\Ä1ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ40/)    BOTTOM

     Notes on 80 pin I/O connector:

       pins  1 -  4 = +12v        41 - 44 = 12v GND

            34 - 36 = +5v         74 - 76 = 5v GND

                 37 = SYNC             77 = LEDC

                 38 = MTRON            78 = DLYDST

                 39 = SCSIA0           79 = SCSIA1

                 40 = SCSIA2           80 = SCSIA3

  Mating NC connector: AMP US p/n: 2-557103-1 straight-in

                                   2-557101-1 right angle to PCB

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º RIGHT SIDE VIEW º  (Both ST-31200N and ST-31200NC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Reserved

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)

  ³     Enable T-Res ÄÄÙ³³ÀÄÄ Motor Start

  ³    Parity Enable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍÍ          ³

    ³                                              ³

    ³  1 2     1 2      1 2                        ³

    ³ ÖÄ·       ÖÄ·    ÖÄÄÄ·  A Drive Supplies Bus ³

    ³ ºøºø     øºøº    ÓøÄø½  B Drive Supplies Own ³

    ³ Óø½ø     øÓø½     ø ø   C Bus Supplies Drive ³

    ³   A       B        C                         ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º LEFT SIDE VIEW º  (ST-31200N only)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼             If these ID jumpers are used,

                                 then ID jumpers shown in front

                                 view ARE NOT USED.

  FRONT                TOP (HDA)                 J5 ÕÍÍ1¸ ÕÍ¸BACK

   OF   ÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ:::ÆÍµJ1 OF

  DRIVE                BOTTOM                       ÔÍÍÍ¾ ÔÍ¾DRIVE

                                                     ³³³

                                               ID 1 ÄÙ³ÀÄ ID 4

                                                    ID 2

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (Both ST-31200N and ST-31200NC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                      TOP (HDA)   J6  ÕÍÍÍÍÍ1¸

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::::ÆÍ

                 *    BOTTOM          ÔÍÍÍÍÍÍ¾

                 ³                     123456

            LED ÄÙ                     ³³³³³³

                                  ID 4 Ù³³³³À Reserved

                                  ID 2 ÄÙ³³ÀÄ Remote LED (pin-3 +5v)

                                  ID 1 ÄÄÙÀÄÄ Spindle Synchronization

                                               (pin-6 REF SIG+)

      If these ID jumper are used, then

         ID jumpers shown in left side view J5

         or 80 pin I/O cable ARE NOT USED.

                            ST-31200N

                            Hawk 1LP

       UNFORMATTED CAPACITY (MB) ________________1258.8

       FORMATTED CAPACITY (xx SECTORS) (MB) _____1052.4

       AVERAGE SECTORS PER TRACK ________________84

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________24,300

       CYLINDERS ________________________________2,700 user

       HEADS ______PHYSICAL______________________9

       DISCS (3.5 in) ___________________________5

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec)________26.8 to 47.2

       EXTERNAL TRANSFER RATE (mbyte/sec) _______4 Async

       EXTERNAL TRANSFER RATE (mbyte/sec) _______10 Sync

       SPINDLE SPEED (RPM) ______________________5411

       AVERAGE LATENCY (mSEC) ___________________5.54

       BUFFER ___________________________________256/1024 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 FAST

                                                 ASA

       TPI (TRACKS PER INCH) ____________________3000

       AVERAGE ACCESS (ms) (read/write)__________9.3/10.5

         Drive level without controller overhead

       SINGLE TRACK SEEK (ms) (read/write)_______1.2/1.7

       MAX FULL SEEK (ms) (read/write)___________19.4/20.4

       MTBF (power-on hours) ____________________500,000

       SHOCK (G's):

                operating (Read/Write) __________10

                nonoperating ____________________75

       ACOUSTICS (typ/max dBA) __________________/

       POWER REQUIREMENTS: +12V START-UP (amps) _1.5

                           +12V TYPICAL (amps) __0.5

                           +5V START-UP (amps) __

                           +5V TYPICAL (amps) ___0.2

                           TYPICAL (watts) ______7

                           MAXIMUM (watts) ______

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):     1.00/25.4

                        Width  (inches/mm):     4.02/102.1

                        Depth  (inches/mm):     5.77/146.6

                        Weight    (lbs/kg):     1.5/0.68

Already low-level formatted at the factory with 1 spare sector

per track and 2 spare cylinders/unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (08/09/94)


ST-31200W

ST-31200W/WD/WC Fast Wide SCSI-2 (Hawk 1LP)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-31200W/WD only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

        (TOP)                   Auxiliary

          ___________________  ÚÄÄ  Ä1¿/ÍÍÍÍÍÍÍÍÍ\

        Í( ×××××××××××××××××1)Í³::::::³³ 0 0 0 0 ÆÍ

          \ÄÄÄÄÄÄÄÄÄÄÄÄ³ÄÄÄÄ/  À  ÄÄ  ÙÀÄ5ÄGÄGÄ12Ù

       68 pin I/O CableÙ        ³³³³³³

                                ³³³³³³

                                ³³³³³³

                                ³³³³³³

        Auxiliary option header ³³³³³³

           pin-11 +5v  ÄÄÄÄÄÄÄÄÄÙ³³³³³

           pin-10 GND  ÄÄÄÄÄÄÄÄÄÄÙ³³³³

           SCSI ID = 8 ÄÄÄÄÄÄÄÄÄÄÄÙ³³³

           SCSI ID = 4 ÄÄÄÄÄÄÄÄÄÄÄÄ´³³

            or pin-6 REFIND+ ÄÄÄÄÄÄÙ³³

           SCSI ID = 2 ÄÄÄÄÄÄÄÄÄÄÄÄÄÙ³

           SCSI ID = 1 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

           SCSI ID = 0 (none)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-31200WC only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                     80 pin I/O and DC Power Wall/bracket Connection

                     ³  Female

    J1          /ÄÄÄÄ³ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ\      TOP (HDA)

     ÍÍÍÍÍÍÍÍÍÍ/ ×××××××××××××××××××× \ÍÍÍÍÍÍÍÍÍÍ

              (\Ä1ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ40/)    BOTTOM

     Notes on 80 pin I/O connector:

       pins  1 -  4 = +12v        41 - 44 = 12v GND

            34 - 36 = +5v         74 - 76 = 5v GND

                 37 = SYNC             77 = LEDC

                 38 = MTRON            78 = DLYDST

                 39 = SCSIA0           79 = SCSIA1

                 40 = SCSIA2           80 = SCSIA3

  Mating NC connector: AMP US p/n: 2-557103-1 straight-in, Male 80-pin

                                   2-557101-1 right angle to PCB

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º RIGHT SIDE VIEW º  (Both ST-31200W and ST-31200WC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Reserved

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)

  ³     Enable T-Res ÄÄÙ³³ÀÄÄ Motor Start

  ³    Parity Enable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍÍ          ³

    ³                                              ³

    ³  1 2     1 2      1 2                        ³

    ³ ÖÄ·       ÖÄ·    ÖÄÄÄ·  A Drive Supplies Bus ³

    ³ ºøºø     øºøº    ÓøÄø½  B Drive Supplies Own ³

    ³ Óø½ø     øÓø½     ø ø   C Bus Supplies Drive ³

    ³   A       B        C                         ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

  Note: The model ST-31200WC drive cannot furnish terminator power,

because no pins on the 80 pin I/O connector are devoted to terminator

power.

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (Both ST-31200W and ST-31200WC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                      TOP (HDA)   J6  ÕÍÍÍÍÍ1¸

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::::ÆÍ

                 *    BOTTOM          ÔÍÍÍÍÍÍ¾

                 ³                     ³³³³³³

            LED ÄÙ                     ³³³³³³

                                       ³³³³³³

                                       ³³³³³³

               Auxiliary option header ³³³³³³

                  pin-11 +5v  ÄÄÄÄÄÄÄÄÄÙ³³³³³

                  pin-10 GND  ÄÄÄÄÄÄÄÄÄÄÙ³³³³

                  SCSI ID = 8 ÄÄÄÄÄÄÄÂÄÄÄÙ³³³

                   or pin-8 BUSY ÄÄÄÄÙ    ³³³

                  SCSI ID = 4 ÄÄÄÄÄÄÄÂÄÄÄÄÙ³³

                   or pin-6 REFIND+ ÄÙ     ³³

                  SCSI ID = 2 ÄÄÄÄÄÄÄÄÄÄÄÄÄÙ³

                  SCSI ID = 1 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

                  SCSI ID = 0 (none)

      If these ID jumper are used, then

         ID jumpers shown in left side view J5

         or 80 pin I/O cable ARE NOT USED.

                            ST-31200W

                            Hawk 1LP

       UNFORMATTED CAPACITY (MB) ________________1258.8

       FORMATTED CAPACITY (xx SECTORS) (MB) _____1055.28

       AVERAGE SECTORS PER TRACK ________________84

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________24,300

       CYLINDERS ________________________________2,700 user

       HEADS ______PHYSICAL______________________9

       DISCS (3.5 in) ___________________________5

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec)________26.8 to 47.2

       EXTERNAL TRANSFER RATE (mbyte/sec) _______20 Sync

       SPINDLE SPEED (RPM) ______________________5411

       AVERAGE LATENCY (mSEC) ___________________5.54

       BUFFER ___________________________________256/1024 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 FAST WIDE

                                                 ASA

       TPI (TRACKS PER INCH) ____________________3000

       AVERAGE ACCESS (ms) (read/write)__________9.3/10.5

         Drive level without controller overhead

       SINGLE TRACK SEEK (ms) (read/write)_______1.2/1.7

       MAX FULL SEEK (ms) (read/write)___________19.4/20.4

       MTBF (power-on hours) ____________________500,000

       SHOCK (G's):

                operating (Read/Write) __________10

                nonoperating ____________________75

       ACOUSTICS (typ/max dBA) __________________/

       POWER REQUIREMENTS: +12V START-UP (amps) _1.9

                           +12V TYPICAL (amps) __0.37

                           +5V START-UP (amps) __0.65

                           +5V TYPICAL (amps) ___0.45

                           TYPICAL (watts) ______7

                           MAXIMUM (watts) ______

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):     1.00/25.4

                        Width  (inches/mm):     4.02/102.1

                        Depth  (inches/mm):     5.77/146.6

                        Weight    (lbs/kg):     1.5/0.68

Already low-level formatted at the factory with 9 spare sector

per cylinder and 2 spare cylinders/unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/24/94)


ST-31230N
ST-31230N SCSI-2 Fast (Hawk 2LP)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-31230N only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

         50 pin I/O Cable Connection

         ³

    J1ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ1¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     Íµ:::::::::::::::::::::::::ÆÍ³ 0 0 0 0 ³ÍÍ

      ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º RIGHT SIDE VIEW º  (ST-31230N)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Enable T-Res

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)

  ³         Reserved ÄÄÙ³³ÀÄÄ Motor Start

  ³    Parity Enable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍÍ          ³

    ³                                              ³

    ³  1 2     1 2      1 2                        ³

    ³ ÖÄ·       ÖÄ·    ÖÄÄÄ·  A Drive Supplies Bus ³

    ³ ºøºø     øºøº    ÓøÄø½  B Drive Supplies Own ³

    ³ Óø½ø     øÓø½     ø ø   C Bus Supplies Drive ³

    ³   A       B        C                         ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º LEFT SIDE VIEW º  (ST-31230N)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼             If these ID jumpers are used,

                                 then ID jumpers shown in front

                                 view ARE NOT USED.

  FRONT                TOP (HDA)                 J5 ÕÍÍ1¸ ÕÍ¸BACK

   OF   ÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ:::ÆÍµJ1 OF

  DRIVE                BOTTOM                       ÔÍÍÍ¾ ÔÍ¾DRIVE

                                                     ³³³

                                               ID 1 ÄÙ³ÀÄ ID 4

                                                    ID 2

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (ST-31230N)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                                  ÚÄÄ´Reserved. Shipped with cover installed.

                                  ³  ÀDo not remove. Do not install jumpers

                      TOP (HDA)  ÕØÍÍÍ¸     1

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::³::::::ÆÍÍ

                 *    BOTTOM     ÔÍÍÍÍ¾123456

                 ³               J6    ³³³³³³

            LED ÄÙ                     ³³³³³³

                                  ID 4 Ù³³³³À Reserved

                                  ID 2 ÄÙ³³ÀÄ Remote LED (pin-3 +5v)

                                  ID 1 ÄÄÙÀÄÄ Reserved

    If these ID jumper are used, then ID jumpers shown in left side view J5

      ARE NOT USED.

                            ST-31230N

                            Hawk 2LP

       UNFORMATTED CAPACITY (MB) ________________1280

       FORMATTED CAPACITY (xx SECTORS) (MB) _____1060

       AVERAGE SECTORS PER TRACK ________________103

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________19,960

       CYLINDERS ________________________________3992

       HEADS ______PHYSICAL______________________5

       DISCS (3.5 in) ___________________________3

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec)________33.9 to 56.7

       EXTERNAL TRANSFER RATE (mbyte/sec) _______5.2 Async

       EXTERNAL TRANSFER RATE (mbyte/sec) _______10 Sync

       SPINDLE SPEED (RPM) ______________________5411

       AVERAGE LATENCY (mSEC) ___________________5.54

       BUFFER ___________________________________512 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 FAST

                                                 ASA II

       TPI (TRACKS PER INCH) ____________________4200

       AVERAGE ACCESS (ms) (read/write)__________10.4/11.4

         Including controller overhead

       SINGLE TRACK SEEK (ms) (read/write)_______2.1/2.5

       MAX FULL SEEK (ms) (read/write)___________20.4/21.4

       MTBF (power-on hours) ____________________800,000

       SHOCK (G's):

                operating (Read/Write) __________10

                nonoperating ____________________75

       ACOUSTICS (typ/max dBA) __________________

       POWER REQUIREMENTS: +12V START-UP (amps) _2.0

                           +12V TYPICAL (amps) __0.35

                           +5V START-UP (amps) __0.61

                           +5V TYPICAL (amps) ___0.35

                           TYPICAL (watts) ______6

                           MAXIMUM (watts) ______9

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):     1.00/25.4

                        Width  (inches/mm):     4.02/101.6

                        Depth  (inches/mm):     5.74/145.8

                        Weight    (lbs/kg):     1.5/0.68

Already low-level formatted at the factory with 1 spare sector

per head (all spare sectors are on one track) and 2 spare

cylinders per unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (08/26/94)


ST-31230W
ST-31230W/WD/WC Fast Wide SCSI-2 (Hawk 2LP)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-31230W/WD only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

        (TOP)                   Auxiliary

          ___________________  ÚÄÄ  Ä1¿/ÍÍÍÍÍÍÍÍÍ\

        Í( ×××××××××××××××××1)Í³::::::³³ 0 0 0 0 ÆÍ

          \ÄÄÄÄÄÄÄÄÄÄÄÄ³ÄÄÄÄ/  À  ÄÄ  ÙÀÄ5ÄGÄGÄ12Ù

       68 pin I/O CableÙ        ³³³³³³

       Connection Male          ³³³³³³

                                ³³³³³³

                                ³³³³³³

        Auxiliary option header ³³³³³³

           pin-11 +5v  ÄÄÄÄÄÄÄÄÄÙ³³³³³

           pin-10 GND  ÄÄÄÄÄÄÄÄÄÄÙ³³³³

           SCSI ID = 8 ÄÄÄÄÄÄÄÄÄÄÄÙ³³³

           SCSI ID = 4 ÄÄÄÄÄÄÄÄÄÄÄÄ´³³

            or pin-6 REFIND+ ÄÄÄÄÄÄÙ³³

           SCSI ID = 2 ÄÄÄÄÄÄÄÄÄÄÄÄÄÙ³

           SCSI ID = 1 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

           SCSI ID = 0 (none)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-31230WC only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                     80 pin I/O and DC Power Wall/bracket Connection

                     ³  Female

    J1          /ÄÄÄÄ³ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ\      TOP (HDA)

     ÍÍÍÍÍÍÍÍÍÍ/ ×××××××××××××××××××× \ÍÍÍÍÍÍÍÍÍÍ

              (\Ä1ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ40/)    BOTTOM

     Notes on 80 pin I/O connector:

       pins  1 -  4 = +12v        41 - 44 = 12v GND

            34 - 36 = +5v         74 - 76 = 5v GND

                 37 = SYNC             77 = LEDC

                 38 = MTRON            78 = DLYDST

                 39 = SCSIA0           79 = SCSIA1

                 40 = SCSIA2           80 = SCSIA3

  Mating NC connector: AMP US p/n: 2-557103-1 straight-in, Male 80-pin

                                   2-557101-1 right angle to PCB

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º RIGHT SIDE VIEW º  (Both ST-31230W and ST-31230WC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Enable T-Res

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)

  ³         Reserved ÄÄÙ³³ÀÄÄ Motor Start

  ³    Parity Enable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍÍ          ³

    ³                                              ³

    ³  1 2     1 2      1 2                        ³

    ³ ÖÄ·       ÖÄ·    ÖÄÄÄ·  A Drive Supplies Bus ³

    ³ ºøºø     øºøº    ÓøÄø½  B Drive Supplies Own ³

    ³ Óø½ø     øÓø½     ø ø   C Bus Supplies Drive ³

    ³   A       B        C                         ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

  Note: The model ST-31230WC drive cannot furnish terminator power,

because no pins on the 80 pin I/O connector are devoted to terminator

power.

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (Both ST-31230W and ST-31230WC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                      TOP (HDA)   J6  ÕÍÍÍÍÍ1¸

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::::ÆÍ

                 *    BOTTOM          ÔÍÍÍÍÍÍ¾

                 ³                     ³³³³³³

            LED ÄÙ                     ³³³³³³

                                       ³³³³³³

                                       ³³³³³³

               Auxiliary option header ³³³³³³

                  pin-11 +5v  ÄÄÄÄÄÄÄÄÄÙ³³³³³

                  pin-10 GND  ÄÄÄÄÄÄÄÄÄÄÙ³³³³

                  SCSI ID = 8 ÄÄÄÄÄÄÄÂÄÄÄÙ³³³

                   or pin-8 BUSY ÄÄÄÄÙ    ³³³

                  SCSI ID = 4 ÄÄÄÄÄÄÄÂÄÄÄÄÙ³³

                   or pin-6 REFIND+ ÄÙ     ³³

                  SCSI ID = 2 ÄÄÄÄÄÄÄÄÄÄÄÄÄÙ³

                  SCSI ID = 1 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

                  SCSI ID = 0 (none)

      If these ID jumper are used, then

         ID jumpers shown in left side view J5

         or 80 pin I/O cable ARE NOT USED.

                            ST-31230W

                            Hawk 2LP

       UNFORMATTED CAPACITY (GB) ________________1.28

       FORMATTED CAPACITY (xx SECTORS) (GB) _____1.06

       AVERAGE SECTORS PER TRACK ________________103

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________19,960

       CYLINDERS ________________________________3992

       HEADS ______PHYSICAL______________________5

       DISCS (3.5 in) ___________________________3

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec)________33.9 to 56.7

       EXTERNAL TRANSFER RATE (mbytes/sec)_______20 Sync.

       SPINDLE SPEED (RPM) ______________________5411

       AVERAGE LATENCY (mSEC) ___________________5.54

       BUFFER ___________________________________512 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 FAST Wide

                                                 ASA II

       TPI (TRACKS PER INCH) ____________________4200

       AVERAGE ACCESS (ms) (read/write)__________10.4/11.4

         Drive level with controller overhead

       SINGLE TRACK SEEK (ms) (read/write)_______2.1/2.5

       MAX FULL SEEK (ms) (read/write)___________20.4/21.4

       MTBF (power-on hours) ____________________800,000

       SHOCK (G's):

                operating (Read/Write) __________10

                nonoperating ____________________75

       ACOUSTICS (typ/max dBA) __________________/

       POWER REQUIREMENTS: +12V START-UP (amps) _2.0

                           +12V TYPICAL (amps) __0.35

                           +5V START-UP (amps) __0.61

                           +5V TYPICAL (amps) ___0.36

                           TYPICAL (watts) ______

                           MAXIMUM (watts) ______

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):     1.00/25.4

                        Width  (inches/mm):     4.02/102.1

                        Depth  (inches/mm):     5.77/146.6

                        Weight    (lbs/kg):     1.5/0.68

Already low-level formatted at the factory with 1 spare sector

per track and 2 spare cylinders/unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/24/94)


ST-31231N
ST-31231N SCSI-2 Fast (Hawk 2LP)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-31231N only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

         50 pin I/O Cable Connection

         ³

    J1ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ1¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     Íµ:::::::::::::::::::::::::ÆÍ³ 0 0 0 0 ³ÍÍ

      ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º RIGHT SIDE VIEW º  (ST-31231N)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Enable T-Res

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)

  ³         Reserved ÄÄÙ³³ÀÄÄ Motor Start

  ³    Parity Enable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍÍ          ³

    ³                                              ³

    ³  1 2     1 2      1 2                        ³

    ³ ÖÄ·       ÖÄ·    ÖÄÄÄ·  A Drive Supplies Bus ³

    ³ ºøºø     øºøº    ÓøÄø½  B Drive Supplies Own ³

    ³ Óø½ø     øÓø½     ø ø   C Bus Supplies Drive ³

    ³   A       B        C                         ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º LEFT SIDE VIEW º  (ST-31231N)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼             If these ID jumpers are used,

                                 then ID jumpers shown in front

                                 view ARE NOT USED.

  FRONT                TOP (HDA)                 J5 ÕÍÍ1¸ ÕÍ¸BACK

   OF   ÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ:::ÆÍµJ1 OF

  DRIVE                BOTTOM                       ÔÍÍÍ¾ ÔÍ¾DRIVE

                                                     ³³³

                                               ID 1 ÄÙ³ÀÄ ID 4

                                                    ID 2

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (ST-31231N)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                                  ÚÄÄ´Reserved. Shipped with cover installed.

                                  ³  ÀDo not remove. Do not install jumpers

                      TOP (HDA)  ÕØÍÍÍ¸     1

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::³::::::ÆÍÍ

                 *    BOTTOM     ÔÍÍÍÍ¾123456

                 ³               J6    ³³³³³³

            LED ÄÙ                     ³³³³³³

                                  ID 4 Ù³³³³À Reserved

                                  ID 2 ÄÙ³³ÀÄ Remote LED (pin-3 +5v)

                                  ID 1 ÄÄÙÀÄÄ Reserved

    If these ID jumper are used, then ID jumpers shown in left side view J5

      ARE NOT USED.

                            ST-31231N

                            Hawk 2LP

       UNFORMATTED CAPACITY (MB) ________________1280

       FORMATTED CAPACITY (xx SECTORS) (MB) _____1060

       AVERAGE SECTORS PER TRACK ________________103

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________19,960

       CYLINDERS ________________________________3992

       HEADS ______PHYSICAL______________________5

       DISCS (3.5 in) ___________________________3

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec)________33.9 to 56.7

       EXTERNAL TRANSFER RATE (mbyte/sec) _______5.2 Async

       EXTERNAL TRANSFER RATE (mbyte/sec) _______10 Sync

       SPINDLE SPEED (RPM) ______________________5411

       AVERAGE LATENCY (mSEC) ___________________5.54

       BUFFER ___________________________________256 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 FAST

                                                 ASA II

       TPI (TRACKS PER INCH) ____________________4200

       AVERAGE ACCESS (ms) (read/write)__________10.4/11.4

         Including controller overhead

       SINGLE TRACK SEEK (ms) (read/write)_______2.1/2.5

       MAX FULL SEEK (ms) (read/write)___________20.4/21.4

       MTBF (power-on hours) ____________________800,000

       SHOCK (G's):

                operating (Read/Write) __________10

                nonoperating ____________________75

       ACOUSTICS (typ/max dBA) __________________

       POWER REQUIREMENTS: +12V START-UP (amps) _2.0

                           +12V TYPICAL (amps) __0.35

                           +5V START-UP (amps) __0.61

                           +5V TYPICAL (amps) ___0.35

                           TYPICAL (watts) ______6

                           MAXIMUM (watts) ______9

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):     1.00/25.4

                        Width  (inches/mm):     4.02/101.6

                        Depth  (inches/mm):     5.74/145.8

                        Weight    (lbs/kg):     1.5/0.68

Already low-level formatted at the factory with 1 spare sector

per head (all spare sectors are on one track) and 2 spare

cylinders per unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (01/03/96)


ST-31250N
ST-31250N SCSI-2 Fast (Barracuda 2LP)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-31250N/ND)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

         50 pin I/O Cable Connection

         ³

      ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ1¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     Íµ:::::::::::::::::::::::::ÆÍ³ 0 0 0 0 ³ÍÍ

      ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

  These pins not on differential --> (o o)  back

   model ND                 ÚÄÄÄÄÄÄ   o o

                            ³         o o   front

                            ³        2   1

                            ³

  ÚÄ J1 Terminator options ÄÁÄ (single-ended) ÄÄÄÄÄÄÄÄÄÄÄ¿

  ³      o o       o o       o o       o o      ÕoÍo¸    ³

  ³      o o       oÕo¸     Õo¸o      ÕoÑo¸      o o     ³

  ³     ÕoÍo¸      o³o³     ³o³o      ³o³o³      o o     ³

  ³     2ÍÍÍ1     2 ÔÍ1     2Í¾ 1     2ÍÏÍ1     2   1    ³

  ³      A         B         C         D         E       ³

  ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

     A - Term. power from drive (default)

     B - Term. power to SCSI bus (only option available for differential ND)

     C - Term. power from SCSI bus

     D - Term. power to SCSI bus and drive

     E - Enable SCSI terminator (jumper on pins 5-6)

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º RIGHT SIDE VIEW º  (ST-31250N)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  123456789                   TOP (HDA)  FRONT

 OF   I/OÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           :::::::::                   BOTTOM     DRIVE

                     ³³³³³³³³³

      1-2 Reserved ÄÄÁÙ³³³³ÀÁÁÄÄ Reserved 7-9

  3 Parity Disable ÄÄÄÄÙ³³ÀÄÄÄÄÄ Delay Motor Start 6

   4 Write Protect ÄÄÄÄÄÙÀÄÄÄÄÄÄ Motor Start Enable 5

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (ST-31250N)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                                     J4

                      TOP (HDA)             1

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::::::::ÆÍÍ

                      BOTTOM      ³³³³³³³³³³

                                  ³³³³³³³³³³

                        Reserved ÄÁÁÁÙ³³³³³ÀÄ Reserved

                            ID 4 ÄÄÄÄÄÙ³³³ÀÄÄ Remote LED (pin-3 +5v)

                            ID 2 ÄÄÄÄÄÄÙ³ÀÄÄÄ Spindle Synchronization

                            ID 1 ÄÄÄÄÄÄÄÙ      (pin-6 REF SIG+)

                            ST-31250N

                            Barracuda 2LP

       UNFORMATTED CAPACITY (MB) ________________1205.3

       FORMATTED CAPACITY (xx SECTORS) (MB) _____1020.9

       AVERAGE SECTORS PER TRACK ________________107 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________18,555

       CYLINDERS ________________________________3,711 user

       HEADS ______PHYSICAL______________________5

       DISCS (3.5 in) ___________________________3

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec)________47.5 to 72.0

       EXTERNAL TRANSFER RATE (mbyte/sec) _______5 Async

       EXTERNAL TRANSFER RATE (mbyte/sec) _______2.5 to 10 Sync

       SPINDLE SPEED (RPM) ______________________7,200

       AVERAGE LATENCY (mSEC) ___________________4.17

       BUFFER ___________________________________512 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 FAST

                                                 ASA II

       BYTES PER TRACK __________________________64,160 average

       SECTORS PER DRIVE ________________________

       TPI (TRACKS PER INCH) ____________________4,048

       BPI (BITS PER INCH) ______________________73,820

       AVERAGE ACCESS (ms) (read/write)__________8.0/9.0

         Drive level without controller overhead

       SINGLE TRACK SEEK (ms) ___________________0.6/0.9

       MAX FULL SEEK (ms) _______________________17/19

       MTBF (power-on hours) ____________________800,000

       SHOCK (G's):

                operating (Read/Write) __________2

                nonoperating ____________________50

       ACOUSTICS (typ/max dBA) __________________4.7/

       POWER DISSIPATION (watts/BTUs) Active ____11/35

                                      Idle ______9/31

       POWER REQUIREMENTS: +12V START-UP (amps) _1.26

                           +12V TYPICAL (amps) __0.88 idle

                           +5V START-UP (amps) __0.91

                           +5V TYPICAL (amps) ___0.33 idle

                           IDLE (watts) _________

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):     1.00/25.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.75/146.05

                        Weight     (lbs/g):     1.2/545

Already low-level formatted at the factory with 9 spare sectors

per cylinder and 1 spare cylinder per unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (05/20/96)


ST-31250W
ST-31250W/WC SCSI-2 Fast Wide (Barracuda 2LP)

ÉÍÍÍÍÍÍÍÍÍÍÍ»

º REAR VIEW º  (ST-31250W only)

ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                                         ÚÄÄÄÄÄ ID 8

                                         ³ÚÄÄÄÄ ID 4

                                         ³³ÚÄÄÄ ID 2

                                         ³³³ÚÄÄ ID 1

               (TOP)                  J5 ³³³³

                 ___________________  ÚÄÄ  Ä1¿/ÍÍÍÍÍÍÍÍÍ\

               Í( ×××××××××××××××××1)Í³::::::³³ 0 0 0 0 ÆÍ

                 \ÄÄÄÄÄÄÄÄÄÄÄÄ³ÄÄÄÄ/  À  ÄÄ  ÙÀÄ5ÄGÄGÄ12Ù

              68 pin I/O CableÙ        ³³

              Connection               ³³   back  o o <--These pins not on

                                       ³³         o o   differential model WD

       Spindle Synch Cable Connector ÄÄÙ³  front  o o   See special WD Term

         (pin-11 SSREF, pin-12 ground)  ³        2 ³ 1  Power detail below

       Remote LED Connector ÄÄÄÄÄÄÄÄÄÄÄÄÙ     ÚÄÄÄÄÙ

        [pin-9 cathode (neg),                 ³

         pin-10 anode (pos)]                  ³

                                              ³

                                              ³

ÚÄ J1 Terminator options (single-ended ONLY) ÄÁÄÄÂÄ (differential) Ä¿

³  o o       o o       o o       o o      ÕoÍo¸  ³                  ³

³  o o       oÕo¸     Õo¸o      ÕoÑo¸      o o   ³    back 1o¸o2    ³

³ ÕoÍo¸      o³o³     ³o³o      ³o³o³      o o   ³         ³o³o     ³

³ 2ÍÍÍ1     2 ÔÍ1     2Í¾ 1     2ÍÏÍ1     2   1  ³   front ÔÍ¾      ³

³  A         B         C         D         E     ³          C       ³

ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

  A - Term. power from drive (default)

  B - Term. power to SCSI bus

  C - Term. power from SCSI bus

  D - Term. power to SCSI bus and drive

  E - Enable SCSI terminator (jumper on pins 5-6)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-31250WC only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                     80 pin I/O and DC Power Wall/bracket Connection

                     ³  Female

    J1          /ÄÄÄÄ³ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ\      TOP (HDA)

     ÍÍÍÍÍÍÍÍÍÍ/ ×××××××××××××××××××× \ÍÍÍÍÍÍÍÍÍÍ

              (\Ä1ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ40/)    BOTTOM

     Notes on 80 pin I/O connector:

       pins  1 -  4 = +12v        41 - 44 = 12v GND

            34 - 36 = +5v         74 - 76 = 5v GND

                 37 = SYNC             77 = LEDC

                 38 = MTRON            78 = DLYDST

                 39 = SCSIA0           79 = SCSIA1

                 40 = SCSIA2           80 = SCSIA3

  Mating WC connector: AMP US p/n: 2-557103-1 straight-in, Male 80-pin

                                   2-557101-1 right angle to PCB

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º RIGHT SIDE VIEW º  (ST-31250W/WC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  123456789                   TOP (HDA)  FRONT

 OF   I/OÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           :::::::::                   BOTTOM     DRIVE

                     ³³³³³³³³³

      1-2 Reserved ÄÄÁÙ³³³³ÀÁÁÄÄ Reserved 7-9

  3 Parity Disable ÄÄÄÄÙ³³ÀÄÄÄÄÄ Delay Motor Start 6

   4 Write Protect ÄÄÄÄÄÙÀÄÄÄÄÄÄ Motor Start Enable 5

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (ST-31250W/WC)      ÚÄÄÄÄÄÄÄ +5V

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼                      ³ÚÄÄÄÄÄÄ Enable SCSI terminator

                                      ³³ÚÄÄÄÄÄ ID 8

                                      ³³³ÚÄÄÄÄ ID 4

                                      ³³³³ÚÄÄÄ ID 2

                                      ³³³³³ÚÄÄ ID 1   (J4 top row)

                      TOP (HDA)       ³³³³³³1

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::::::::ÆÍÍ  J4

                      BOTTOM      ³³³³³³³³³³

                                  ³³³³³³³³³³          (J4 bottom row)

                        Reserved ÄÁÁÁÙ³³³³³³

                   No connection ÄÄÄÄÄÙ³³³³³

                          Ground ÄÄÄÄÄÄÙ³³³³

         Unit Active LED pin (+) ÄÄÄÄÄÄÄÙ³³³

          SSREF (+) spindle sync ÄÄÄÄÄÄÄÄÙ³³

                   Vendor Unique ÄÄÄÄÄÄÄÄÄÙ³

               Fault LED pin (+) ÄÄÄÄÄÄÄÄÄÄÙ

                            ST-31250W

                            Barracuda 2LP

       UNFORMATTED CAPACITY (MB) ________________1205.3

       FORMATTED CAPACITY (xx SECTORS) (MB) _____1020.9

       AVERAGE SECTORS PER TRACK ________________107 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________18,555

       CYLINDERS ________________________________3,711 user

       HEADS ______PHYSICAL______________________5

       DISCS (3.5 in) ___________________________3

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec)________47.5 to 72.0

       EXTERNAL TRANSFER RATE (mbyte/sec) _______5 Async

       EXTERNAL TRANSFER RATE (mbyte/sec) _______5.0 to 20 Sync

       SPINDLE SPEED (RPM) ______________________7,200

       AVERAGE LATENCY (mSEC) ___________________4.17

       BUFFER ___________________________________512 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 FAST Wide

                                                 ASA II

       BYTES PER TRACK __________________________64,160 average

       SECTORS PER DRIVE ________________________

       TPI (TRACKS PER INCH) ____________________4,048

       BPI (BITS PER INCH) ______________________73,820

       AVERAGE ACCESS (ms) (read/write)__________8.0/9.0

         Drive level without controller overhead

       SINGLE TRACK SEEK (ms) ___________________0.6/0.9

       MAX FULL SEEK (ms) _______________________17/19

       MTBF (power-on hours) ____________________800,000

       SHOCK (G's):

                operating (Read/Write) __________2

                nonoperating ____________________50

       ACOUSTICS (typ/max dBA) __________________4.7/

       POWER DISSIPATION (watts/BTUs) Active ____11/35

                                      Idle ______9/31

       POWER REQUIREMENTS: +12V START-UP (amps) _1.26

                           +12V TYPICAL (amps) __0.88 idle

                           +5V START-UP (amps) __0.91

                           +5V TYPICAL (amps) ___0.33 idle

                           IDLE (watts) _________

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):     1.00/25.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.75/146.05

                        Weight     (lbs/g):     1.2/545

Already low-level formatted at the factory with 9 spare sectors

per cylinder and 1 spare cylinder per unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (05/20/96)


ST-31930N
ST-31930N SCSI-2 Fast

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-31930N only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

         50 pin I/O Cable Connection

         ³

    J1ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ1¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     Íµ:::::::::::::::::::::::::ÆÍ³ 0 0 0 0 ³ÍÍ

      ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-31930NC only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                     80 pin I/O and DC Power Wall/bracket Connection

                     ³

    J1          /ÄÄÄÄ³ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ\      TOP (HDA)

     ÍÍÍÍÍÍÍÍÍÍ/ ×××××××××××××××××××× \ÍÍÍÍÍÍÍÍÍÍ

              (\Ä1ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ40/)    BOTTOM

     Notes on 80 pin I/O connector:

       pins  1 -  4 = +12v        41 - 44 = 12v GND

            34 - 36 = +5v         74 - 76 = 5v GND

                 37 = SYNC             77 = LEDC

                 38 = MTRON            78 = DLYDST

                 39 = SCSIA0           79 = SCSIA1

                 40 = SCSIA2           80 = SCSIA3

  Mating NC connector: AMP US p/n: 2-557103-1 straight-in

                                   2-557101-1 right angle to PCB

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º RIGHT SIDE VIEW º  (Both ST-31930N and ST-31930NC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Reserved

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)

  ³     Enable T-Res ÄÄÙ³³ÀÄÄ Motor Start

  ³    Parity Enable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍÍ          ³

    ³                                              ³

    ³  1 2     1 2      1 2                        ³

    ³ ÖÄ·       ÖÄ·           A Drive Supplies Bus ³

    ³ ºøºø     øºøº    ÖøÄø·  B Drive Supplies Own ³

    ³ Óø½ø     øÓø½    Óø ø½  C Bus Supplies Drive ³

    ³   A       B        C                         ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º LEFT SIDE VIEW º  (ST-31930N only)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼             If these ID jumpers are used,

                                 then ID jumpers shown in front

                                 view ARE NOT USED.

  FRONT                TOP (HDA)                 J5 ÕÍÍ1¸ ÕÍ¸BACK

   OF   ÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ:::ÆÍµJ1 OF

  DRIVE                BOTTOM                       ÔÍÍÍ¾ ÔÍ¾DRIVE

                                                     ³³³

                                               ID 1 ÄÙ³ÀÄ ID 4

                                                    ID 2

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (Both ST-31930N and ST-31930NC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                      TOP (HDA)   J6  ÕÍÍÍÍÍ1¸

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::::ÆÍ

                 *    BOTTOM          ÔÍÍÍÍÍÍ¾

                 ³                     123456

            LED ÄÙ                     ³³³³³³

                                  ID 4 Ù³³³³À Reserved

                                  ID 2 ÄÙ³³ÀÄ Remote LED (pin-3 +5v)

                                  ID 1 ÄÄÙÀÄÄ Spindle Synchronization

                                               (pin-6 REF SIG+)

      If these ID jumper are used, then

         ID jumpers shown in left side view J5

         or 80 pin I/O cable ARE NOT USED.

                            ST-31930N

       UNFORMATTED CAPACITY (MB) ________________1900

       FORMATTED CAPACITY (xx SECTORS) (MB) _____1700

       AVERAGE SECTORS PER TRACK ________________

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________

       CYLINDERS ________________________________3898

       HEADS ______PHYSICAL______________________7

       DISCS (3.5 in) ___________________________4

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec)________38 to 62

       EXTERNAL TRANSFER RATE (mbytes/sec)_______10 Sync.

       SPINDLE SPEED (RPM) ______________________5411

       AVERAGE LATENCY (mSEC) ___________________5.54

       BUFFER ___________________________________512 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 FAST

       TPI (TRACKS PER INCH) ____________________

       AVERAGE ACCESS (ms) (read/write)__________9.3/10.5

         Drive level without controller overhead

       SINGLE TRACK SEEK (ms) (read/write)_______1.2/1.7

       MAX FULL SEEK (ms) (read/write)___________19.4/20.4

       MTBF (power-on hours) ____________________800,000

       POWER REQUIREMENTS: +12V START-UP (amps) _1.7

                           +12V TYPICAL (amps) __0.36

                           +5V START-UP (amps) __

                           +5V TYPICAL (amps) ___0.54

                           TYPICAL (watts) ______7

                           MAXIMUM (watts) ______

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):     1.00/25.4

                        Width  (inches/mm):     4.02/102.1

                        Depth  (inches/mm):     5.77/146.6

                        Weight    (lbs/kg):     1.5/0.68

Already low-level formatted at the factory with 1 spare sector

per track and 2 spare cylinders/unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (08/08/94)


ST-32105N
ST-32105N SCSI-2 FAST, (Cayman CFP2105S)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                  50 pin I/O Cable Connection J2

                  ³

               ÕÍÍÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

             ÍÍµ::::::::::::::::::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

             J1ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                ÚÄÄTResÄÄ1    ÚÄÄTResÄÄ1

                ÀÄÄÄÄÄÄÄÄÙ    ÀÄÄÄÄÄÄÄÄÙ

                          oÂo             o o   ÄÄÄÄ Parity Disable

                           ³              o o   ÄÄÄÄ Delay Spin

               Term Power ÄÙ              o o   ÄÄÄÄ Disable Spin

        Open = Power from drive           o o   ÄÄÄÄ Reserved

      Closed = Power from interface       o o   ÄÄÄÄ ID 4

                                          o o   ÄÄÄÄ ID 2

                                          o o   ÄÄÄÄ ID 1

                                             J7      ID 0 = no ID jumpers

    ST-32105N

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

               ÚÄÄÄÄÄÄÄÄÄÄÄÄÄ LED Driver

               ³ ÚÄÄÄÄÄÄÄÄÄÄÄ Reserved

               ³ ³   ÚÄÄÄÄÄÄÄ SCSI ID's (none for ID0)

  (TOP)        ³ ³   ³

               ³ ³ ÚÄÁÄ¿          J3

               ³ ³ 4 2 1

               o o o o o    o o o o o   o o

             Í o o o o oÍÍÍ   o o o o   o o ÍÍÍÍÍÍÍÍPWAÍÍÍÍÍÍÍÍÍÍ

                            ³ ÀÄÄÂÄÄÙ   ³ ³

  (BOTTOM)      J6          ³    ³      ³ ÀÄÄ Spindle Synch

                            ³    ³      ÀÄÄÄÄ LED Driver

                            ³    ÀÄÄÄÄÄÄÄÄÄÄÄ Reserved

                            ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ pin removed

                            ST-32105N Cayman

       FORMATTED CAPACITY (MB) __________________2147

       AVERAGE SECTORS PER TRACK ________________106 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________39,480

       CYLINDERS ________________________________3948 user

       HEADS ______PHYSICAL______________________10

       DISCS (3.5 in) ___________________________5

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec)________33.3 to 68.7

       EXTERNAL TRANSFER RATE (mbyte/sec) _______10 Sync

       SPINDLE SPEED (RPM) ______________________5,400

       AVERAGE LATENCY (mSEC) ___________________5.55

       BUFFER ___________________________________512 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 Fast

       BYTES PER TRACK (avg) ____________________

       SECTORS PER DRIVE ________________________

       TPI (TRACKS PER INCH) ____________________4030

       BPI (BITS PER INCH) ______________________74K

       AVERAGE ACCESS (ms) (read/write)__________8.5/9.0

       SINGLE TRACK SEEK (ms) ___________________2

       MAX FULL SEEK (ms) _______________________18

       MTBF (power-on hours) ____________________1,000,000

       SHOCK (G's):

                operating (Read/Write) __________5

                nonoperating ____________________75

       ACOUSTICS (typ/max dBA) __________________<43/

       POWER REQUIREMENTS: +12V START-UP (amps) _1.7

                           +12V TYPICAL (amps) __.3

                           +5V START-UP (amps) __.7

                           +5V TYPICAL (amps) ___.42

                           IDLE (watts) _________5.7

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):        1/25.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.75/146.1

                        Weight    (lbs/kg):      1.3/0.59

Already low-level formatted at the factory with x spare sectors

per cylinder and x spare cylinder per unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (09/09/96)


ST-32105W
ST-32105W SCSI-2 FAST Wide, (Cayman CFP2105W)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»                         ÚÄÄÄÄ ID 8  Auxilary

  º REAR VIEW º                         ³ÚÄÄÄ ID 4

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼                         ³³ÚÄÄ ID 2

                        (TOP)           ³³³ÚÄ ID 1

                 68 pin I/O Cable       ³³³³

                ___________________  ÚÄÄ  Ä1¿/ÍÍÍÍÍÍÍÍÍ\

              Í( ×××××××××××××××××1)Í³::::::³³ 0 0 0 0 ÆÍ

                \ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ/  À  ÄÄ  ÙÀÄ5ÄGÄGÄ12Ù

                 ÚÄÄTResÄÄ1         ÚÄÄTResÄÄ1

                 ÀÄÄÄÄÄÄÄÄÙ   oÂo   ÀÄÄÄÄÄÄÄÄÙ

                 ÚÄÄTResÄÄ1    ³

                 ÀÄÄÄÄÄÄÄÄÙ    ³                      (back)

                               ³

                               ³           o o   ÄÄÄÄ Parity Disable

                 Term Power ÄÄÄÙ           o o   ÄÄÄÄ Delay Spin

          Open = Power from drive          o o   ÄÄÄÄ Disable Spin

        Closed = Power from interface      o o   ÄÄÄÄ ID 8

                                           o o   ÄÄÄÄ ID 4

                                           o o   ÄÄÄÄ ID 2

                                           o o   ÄÄÄÄ ID 1

                                              J7      ID 0 = no ID jumpers

    ST-32105W

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»                                    (front)

  º  Front View  º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

  (TOP)

                              J3

                        o o o o o   o o

               ÍÍÍÍÍÍÍÍ   o o o o   o o ÍÍÍÍÍÍÍÍPWAÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                        ³ ÀÄÄÂÄÄÙ   ³ ³

  (BOTTOM)              ³    ³      ³ ÀÄÄ Spindle Synch

                        ³    ³      ÀÄÄÄÄ LED Driver

                        ³    ÀÄÄÄÄÄÄÄÄÄÄÄ Reserved

                        ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ pin removed

                            ST-32105W Cayman

       FORMATTED CAPACITY (MB) __________________2147

       AVERAGE SECTORS PER TRACK ________________106 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________39,480

       CYLINDERS ________________________________3948 user

       HEADS ______PHYSICAL______________________10

       DISCS (3.5 in) ___________________________5

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec)________33.3 to 68.7

       EXTERNAL TRANSFER RATE (mbyte/sec) _______20 Sync

       SPINDLE SPEED (RPM) ______________________5,400

       AVERAGE LATENCY (mSEC) ___________________5.55

       BUFFER ___________________________________512 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 Fast Wide

       BYTES PER TRACK (avg) ____________________

       SECTORS PER DRIVE ________________________

       TPI (TRACKS PER INCH) ____________________4030

       BPI (BITS PER INCH) ______________________74K

       AVERAGE ACCESS (ms) (read/write)__________8.5/9.0

       SINGLE TRACK SEEK (ms) ___________________2

       MAX FULL SEEK (ms) _______________________18

       MTBF (power-on hours) ____________________1,000,000

       SHOCK (G's):

                operating (Read/Write) __________5

                nonoperating ____________________75

       ACOUSTICS (typ/max dBA) __________________<43/

       POWER REQUIREMENTS: +12V START-UP (amps) _1.7

                           +12V TYPICAL (amps) __.3

                           +5V START-UP (amps) __.7

                           +5V TYPICAL (amps) ___.42

                           IDLE (watts) _________5.7

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):        1/25.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.75/146.1

                        Weight    (lbs/kg):      1.3/0.59

Already low-level formatted at the factory with x spare sectors

per cylinder and x spare cylinder per unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (03/13/96)


ST-32107N
ST-32107N SCSI-2 Fast, (Cayman CFP2107S)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                  50 pin I/O Cable Connection J2

                  ³

               ÕÍÍÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

             ÍÍµ::::::::::::::::::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

             J1ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

                ÚÄÄTResÄÄ1    ÚÄÄTResÄÄ1

                ÀÄÄÄÄÄÄÄÄÙ    ÀÄÄÄÄÄÄÄÄÙ

                          oÂo             o o   ÄÄÄÄ Parity Disable

                           ³              o o   ÄÄÄÄ Delay Spin

               Term Power ÄÙ              o o   ÄÄÄÄ Disable Spin

        Open = Power from drive           o o   ÄÄÄÄ Reserved

      Closed = Power from interface       o o   ÄÄÄÄ ID 4

                                          o o   ÄÄÄÄ ID 2

                                          o o   ÄÄÄÄ ID 1

                                             J7      ID 0 = no ID jumpers

    ST-32107N

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º  Front View  º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

               ÚÄÄÄÄÄÄÄÄÄÄÄÄÄ LED Driver

               ³ ÚÄÄÄÄÄÄÄÄÄÄÄ Reserved

               ³ ³   ÚÄÄÄÄÄÄÄ SCSI ID's (none for ID0)

  (TOP)        ³ ³   ³

               ³ ³ ÚÄÁÄ¿          J3

               ³ ³ 4 2 1

               o o o o o    o o o o o   o o

             Í o o o o oÍÍÍ   o o o o   o o ÍÍÍÍÍÍÍÍPWAÍÍÍÍÍÍÍÍÍÍ

                            ³ ÀÄÄÂÄÄÙ   ³ ³

  (BOTTOM)      J6          ³    ³      ³ ÀÄÄ Spindle Synch

                            ³    ³      ÀÄÄÄÄ LED Driver

                            ³    ÀÄÄÄÄÄÄÄÄÄÄÄ Reserved

                            ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ pin removed

                            ST-32107N Cayman

       FORMATTED CAPACITY (MB) __________________2147

       AVERAGE SECTORS PER TRACK ________________104 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________40,160

       CYLINDERS ________________________________4016 user

       HEADS ______PHYSICAL______________________10

       DISCS (3.5 in) ___________________________5

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec)________47.7 to 87.2

       EXTERNAL TRANSFER RATE (mbyte/sec) _______10 Sync

       SPINDLE SPEED (RPM) ______________________7,200

       AVERAGE LATENCY (mSEC) ___________________4.17

       BUFFER ___________________________________512 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 Fast

       BYTES PER TRACK (avg) ____________________

       SECTORS PER DRIVE ________________________

       TPI (TRACKS PER INCH) ____________________4090

       BPI (BITS PER INCH) ______________________78K

       AVERAGE ACCESS (ms) (read/write)__________8.5/9.0

       SINGLE TRACK SEEK (ms) ___________________2

       MAX FULL SEEK (ms) _______________________18

       MTBF (power-on hours) ____________________1,000,000

       SHOCK (G's):

                operating (Read/Write) __________5

                nonoperating ____________________75

       ACOUSTICS (typ/max dBA) __________________<46/

       POWER REQUIREMENTS: +12V START-UP (amps) _2.3

                           +12V TYPICAL (amps) __.55

                           +5V START-UP (amps) __.75

                           +5V TYPICAL (amps) ___.44

                           IDLE (watts) _________8.9

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):        1/25.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.75/146.1

                        Weight    (lbs/kg):      1.3/0.59

Already low-level formatted at the factory with x spare sectors

per cylinder and x spare cylinder per unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (09/09/96)


ST-32107W
ST-32107W SCSI-2 FAST Wide, (Cayman CFP2107W)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»                         ÚÄÄÄÄ ID 8  Auxilary

  º REAR VIEW º                         ³ÚÄÄÄ ID 4

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼                         ³³ÚÄÄ ID 2

                        (TOP)           ³³³ÚÄ ID 1

                 68 pin I/O Cable       ³³³³

                ___________________  ÚÄÄ  Ä1¿/ÍÍÍÍÍÍÍÍÍ\

              Í( ×××××××××××××××××1)Í³::::::³³ 0 0 0 0 ÆÍ

                \ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ/  À  ÄÄ  ÙÀÄ5ÄGÄGÄ12Ù

                 ÚÄÄTResÄÄ1         ÚÄÄTResÄÄ1

                 ÀÄÄÄÄÄÄÄÄÙ   oÂo   ÀÄÄÄÄÄÄÄÄÙ

                 ÚÄÄTResÄÄ1    ³

                 ÀÄÄÄÄÄÄÄÄÙ    ³                      (back)

                               ³

                               ³           o o   ÄÄÄÄ Parity Disable

                 Term Power ÄÄÄÙ           o o   ÄÄÄÄ Delay Spin

          Open = Power from drive          o o   ÄÄÄÄ Disable Spin

        Closed = Power from interface      o o   ÄÄÄÄ ID 8

                                           o o   ÄÄÄÄ ID 4

                                           o o   ÄÄÄÄ ID 2

                                           o o   ÄÄÄÄ ID 1

                                              J7      ID 0 = no ID jumpers

    ST-32107W

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»                                    (front)

  º  Front View  º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

  (TOP)

                              J3

                        o o o o o   o o

               ÍÍÍÍÍÍÍÍ   o o o o   o o ÍÍÍÍÍÍÍÍPWAÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                        ³ ÀÄÄÂÄÄÙ   ³ ³

  (BOTTOM)              ³    ³      ³ ÀÄÄ Spindle Synch

                        ³    ³      ÀÄÄÄÄ LED Driver

                        ³    ÀÄÄÄÄÄÄÄÄÄÄÄ Reserved

                        ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ pin removed

                            ST-32107W Cayman

       FORMATTED CAPACITY (MB) __________________2147

       AVERAGE SECTORS PER TRACK ________________104 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________40,160

       CYLINDERS ________________________________4016 user

       HEADS ______PHYSICAL______________________10

       DISCS (3.5 in) ___________________________5

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec)________47.7 to 87.2

       EXTERNAL TRANSFER RATE (mbyte/sec) _______20 Sync

       SPINDLE SPEED (RPM) ______________________7,200

       AVERAGE LATENCY (mSEC) ___________________4.17

       BUFFER ___________________________________512 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 Fast Wide

       BYTES PER TRACK (avg) ____________________

       SECTORS PER DRIVE ________________________

       TPI (TRACKS PER INCH) ____________________4090

       BPI (BITS PER INCH) ______________________78K

       AVERAGE ACCESS (ms) (read/write)__________8.5/9.0

       SINGLE TRACK SEEK (ms) ___________________2

       MAX FULL SEEK (ms) _______________________18

       MTBF (power-on hours) ____________________1,000,000

       SHOCK (G's):

                operating (Read/Write) __________5

                nonoperating ____________________75

       ACOUSTICS (typ/max dBA) __________________<46/

       POWER REQUIREMENTS: +12V START-UP (amps) _2.3

                           +12V TYPICAL (amps) __.55

                           +5V START-UP (amps) __.75

                           +5V TYPICAL (amps) ___.44

                           IDLE (watts) _________8.9

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):        1/25.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.75/146.1

                        Weight    (lbs/kg):      1.3/0.59

Already low-level formatted at the factory with x spare sectors

per cylinder and x spare cylinder per unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (03/13/96)


ST-32151N
ST-32151N SCSI-2 Fast (Hawk 2XL)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-32151N)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

         50 pin I/O Cable Connection

         ³

    J1ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ1¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     Íµ:::::::::::::::::::::::::ÆÍ³ 0 0 0 0 ³ÍÍ

      ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º RIGHT SIDE VIEW º  (ST-32151N)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Enable T-Res

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)

  ³         Reserved ÄÄÙ³³ÀÄÄ Motor Start

  ³   Parity Disable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍÍ          ³

    ³                                              ³

    ³  1 2     1 2      1 2                        ³

    ³ ÖÄ·       ÖÄ·    ÖÄÄÄ·  A Drive Supplies Bus ³

    ³ ºøºø     øºøº    ÓøÄø½  B Drive Supplies Own ³

    ³ Óø½ø     øÓø½     ø ø   C Bus Supplies Drive ³

    ³   A       B        C                         ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (ST-32151N)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                                  ÚÄÄ´Reserved. Shipped with cover installed.

                                  ³  ÀDo not remove. Do not install jumpers

                      TOP (HDA)  ÕØÍÍÍ¸     1

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::³::::::ÆÍÍ

                 *    BOTTOM     ÔÍÍÍÍ¾123456

                 ³               J6    ³³³³³³

            LED ÄÙ                     ³³³³³³

                            Remote LED Ù³³³³À ID 1

                           (pin-11 +5v) ³³³ÀÄ ID 2

                              Reserved ÄÁÙÀÄÄ ID 4

                            ST-32151N

       FORMATTED CAPACITY (MB) __________________2148

       AVERAGE SECTORS PER TRACK ________________125 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________33,408

       CYLINDERS ________________________________4,176 user

       HEADS ______PHYSICAL______________________8

       DISCS (3.5 in) ___________________________4

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (0,4,4)

       INTERNAL TRANSFER RATE (mbits/sec)________44 to 66

       EXTERNAL TRANSFER RATE (mbyte/sec) _______10 Sync

       SPINDLE SPEED (RPM) ______________________5,411

       AVERAGE LATENCY (mSEC) ___________________5.54

       BUFFER ___________________________________256 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 Fast

                                                 ASA II

       BYTES PER TRACK (avg) ____________________75,900

       SECTORS PER DRIVE ________________________

       TPI (TRACKS PER INCH) ____________________4800

       BPI (BITS PER INCH) ______________________

       AVERAGE ACCESS (ms) (read/write)__________10.4/11.4

        With controller overhead

       SINGLE TRACK SEEK (ms) ___________________2.7

       MAX FULL SEEK (ms) _______________________20.4

       MTBF (power-on hours) ____________________800,000

       POWER REQUIREMENTS: +12V START-UP (amps) _1.8

                           +12V TYPICAL (amps) __0.34 idle

                           +5V START-UP (amps) __1.0

                           +5V TYPICAL (amps) ___0.32 idle

                           IDLE (watts) _________

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):        1/25.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.75/146.1

                        Weight    (lbs/kg):      1.5/0.68

Already low-level formatted at the factory with 8 spare sectors

per cylinder and 2 spare cylinder per unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (05/20/96)


ST-32151W
ST-32151W/WC Fast Wide SCSI-2 (Hawk 2XL)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-32151W only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

        (TOP)                   Auxiliary

          ___________________  ÚÄÄ  Ä1¿/ÍÍÍÍÍÍÍÍÍ\

        Í( ×××××××××××××××××1)Í³::::::³³ 0 0 0 0 ÆÍ

          \ÄÄÄÄÄÄÄÄÄÄÄÄ³ÄÄÄÄ/  À  ÄÄ  ÙÀÄ5ÄGÄGÄ12Ù

       68 pin I/O CableÙ        ³³³³³³

       Connection Male          ³³³³³³

                                ³³³³³³

                                ³³³³³³

        Auxiliary option header ³³³³³³

           pin-11 +5v  ÄÄÄÄÄÄÄÄÄÙ³³³³³

           pin-10 GND  ÄÄÄÄÄÄÄÄÄÄÙ³³³³

           SCSI ID = 8 ÄÄÄÄÄÄÄÄÄÄÄÙ³³³

           SCSI ID = 4 ÄÄÄÄÄÄÄÄÄÄÄÄ´³³

            or pin-6 REFIND+ ÄÄÄÄÄÄÙ³³

           SCSI ID = 2 ÄÄÄÄÄÄÄÄÄÄÄÄÄÙ³

           SCSI ID = 1 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

           SCSI ID = 0 (none)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-32151WC only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                     80 pin I/O and DC Power Wall/bracket Connection

                     ³  Female

    J1          /ÄÄÄÄ³ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ\      TOP (HDA)

     ÍÍÍÍÍÍÍÍÍÍ/ ×××××××××××××××××××× \ÍÍÍÍÍÍÍÍÍÍ

              (\Ä1ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ40/)    BOTTOM

     Notes on 80 pin I/O connector:

       pins  1 -  4 = +12v        41 - 44 = 12v GND

            34 - 36 = +5v         74 - 76 = 5v GND

                 37 = SYNC             77 = LEDC

                 38 = MTRON            78 = DLYDST

                 39 = SCSIA0           79 = SCSIA1

                 40 = SCSIA2           80 = SCSIA3

  Mating NC connector: AMP US p/n: 2-557103-1 straight-in, Male 80-pin

                                   2-557101-1 right angle to PCB

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º RIGHT SIDE VIEW º  (ST-32151W/WC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Enable T-Res (not used on WC model)

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)

  ³         Reserved ÄÄÙ³³ÀÄÄ Motor Start

  ³   Parity Disable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍÍ          ³

    ³                                              ³

    ³  1 2     1 2      1 2                        ³

    ³ ÖÄ·       ÖÄ·    ÖÄÄÄ·  A Drive Supplies Bus ³

    ³ ºøºø     øºøº    ÓøÄø½  B Drive Supplies Own ³

    ³ Óø½ø     øÓø½     ø ø   C Bus Supplies Drive ³

    ³   A       B        C                         ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

     (not used on WC model)

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (ST-32151W/WC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                                  ÚÄÄ´Reserved. Shipped with cover installed.

                                  ³  ÀDo not remove. Do not install jumpers

                      TOP (HDA)  ÕØÍÍÍ¸     1

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::³::::::ÆÍÍ

                 *    BOTTOM     ÔÍÍÍÍ¾123456

                 ³               J6    ³³³³³³

            LED ÄÙ                     ³³³³³³

                            Remote LED Ù³³³³À ID 1

                           (pin-11 +5v) ³³³ÀÄ ID 2

                              Reserved ÄÙ³ÀÄÄ ID 4

                                         ÀÄÄÄ ID 8

                            ST-32151W

       FORMATTED CAPACITY (MB) __________________2148

       AVERAGE SECTORS PER TRACK ________________125 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________33,408

       CYLINDERS ________________________________4,176 user

       HEADS ______PHYSICAL______________________8

       DISCS (3.5 in) ___________________________4

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (0,4,4)

       INTERNAL TRANSFER RATE (mbits/sec)________44 to 66

       EXTERNAL TRANSFER RATE (mbyte/sec) _______20 Sync

       SPINDLE SPEED (RPM) ______________________5,411

       AVERAGE LATENCY (mSEC) ___________________5.54

       BUFFER ___________________________________512 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 Fast

                                                 ASA II

       BYTES PER TRACK (avg) ____________________75,900

       SECTORS PER DRIVE ________________________

       TPI (TRACKS PER INCH) ____________________4800

       BPI (BITS PER INCH) ______________________

       AVERAGE ACCESS (ms) (read/write)__________10.4/11.4

        Drive level without controller overhead

       SINGLE TRACK SEEK (ms) ___________________2.7

       MAX FULL SEEK (ms) _______________________20.4

       MTBF (power-on hours) ____________________800,000

       POWER REQUIREMENTS: +12V START-UP (amps) _1.8

                           +12V TYPICAL (amps) __0.34 idle

                           +5V START-UP (amps) __1.0

                           +5V TYPICAL (amps) ___0.32 idle

                           IDLE (watts) _________

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):        1/25.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.75/146.1

                        Weight    (lbs/kg):      1.5/0.68

Already low-level formatted at the factory with 8 spare sectors

per cylinder and 2 spare cylinder per unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (05/20/96)


ST-32155N
ST-32155N Ultra-SCSI (Hawk 2XL)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-32155N)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

         50 pin I/O Cable Connection

         ³

    J1ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ1¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     Íµ:::::::::::::::::::::::::ÆÍ³ 0 0 0 0 ³ÍÍ

      ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º RIGHT SIDE VIEW º  (ST-32155N)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Enable T-Res

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)

  ³         Reserved ÄÄÙ³³ÀÄÄ Motor Start

  ³   Parity Disable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍÍ          ³

    ³                                              ³

    ³  1 2     1 2      1 2                        ³

    ³ ÖÄ·       ÖÄ·    ÖÄÄÄ·  A Drive Supplies Bus ³

    ³ ºøºø     øºøº    ÓøÄø½  B Drive Supplies Own ³

    ³ Óø½ø     øÓø½     ø ø   C Bus Supplies Drive ³

    ³   A       B        C                         ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (ST-32155N)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                                  ÚÄÄ´Reserved. Shipped with cover installed.

                                  ³  ÀDo not remove. Do not install jumpers

                      TOP (HDA)  ÕØÍÍÍ¸     1

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::³::::::ÆÍÍ

                 *    BOTTOM     ÔÍÍÍÍ¾123456

                 ³               J6    ³³³³³³

            LED ÄÙ                     ³³³³³³

                            Remote LED Ù³³³³À ID 1

                           (pin-11 +5v) ³³³ÀÄ ID 2

                              Reserved ÄÁÙÀÄÄ ID 4

                            ST-32155N

       FORMATTED CAPACITY (MB) __________________2148

       AVERAGE SECTORS PER TRACK ________________125 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________33,408

       CYLINDERS ________________________________4,176 user

       HEADS ______PHYSICAL______________________8

       DISCS (3.5 in) ___________________________4

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (0,4,4)

       INTERNAL TRANSFER RATE (mbits/sec)________44 to 66

       EXTERNAL TRANSFER RATE (mbyte/sec) _______20 Sync

       SPINDLE SPEED (RPM) ______________________5,411

       AVERAGE LATENCY (mSEC) ___________________5.54

       BUFFER ___________________________________512 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________Ultra-SCSI

                                                 ASA II

       BYTES PER TRACK (avg) ____________________75,900

       SECTORS PER DRIVE ________________________

       TPI (TRACKS PER INCH) ____________________4800

       BPI (BITS PER INCH) ______________________

       AVERAGE ACCESS (ms) (read/write)__________10.4/11.4

        With controller overhead

       SINGLE TRACK SEEK (ms) ___________________2.7

       MAX FULL SEEK (ms) _______________________20.4

       MTBF (power-on hours) ____________________800,000

       POWER REQUIREMENTS: +12V START-UP (amps) _1.8

                           +12V TYPICAL (amps) __0.34 idle

                           +5V START-UP (amps) __1.0

                           +5V TYPICAL (amps) ___0.32 idle

                           IDLE (watts) _________

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):        1/25.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.75/146.1

                        Weight    (lbs/kg):      1.5/0.68

Already low-level formatted at the factory with 8 spare sectors

per cylinder and 2 spare cylinder per unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (05/20/96)


ST-32155W
ST-32155W/WC Ultra-SCSI Wide (Hawk 2XL)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-32155W only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

        (TOP)                   Auxiliary

          ___________________  ÚÄÄ  Ä1¿/ÍÍÍÍÍÍÍÍÍ\

        Í( ×××××××××××××××××1)Í³::::::³³ 0 0 0 0 ÆÍ

          \ÄÄÄÄÄÄÄÄÄÄÄÄ³ÄÄÄÄ/  À  ÄÄ  ÙÀÄ5ÄGÄGÄ12Ù

       68 pin I/O CableÙ        ³³³³³³

       Connection Male          ³³³³³³

                                ³³³³³³

                                ³³³³³³

        Auxiliary option header ³³³³³³

           pin-11 +5v  ÄÄÄÄÄÄÄÄÄÙ³³³³³

           pin-10 GND  ÄÄÄÄÄÄÄÄÄÄÙ³³³³

           SCSI ID = 8 ÄÄÄÄÄÄÄÄÄÄÄÙ³³³

           SCSI ID = 4 ÄÄÄÄÄÄÄÄÄÄÄÄ´³³

            or pin-6 REFIND+ ÄÄÄÄÄÄÙ³³

           SCSI ID = 2 ÄÄÄÄÄÄÄÄÄÄÄÄÄÙ³

           SCSI ID = 1 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

           SCSI ID = 0 (none)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-32155WC only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                     80 pin I/O and DC Power Wall/bracket Connection

                     ³  Female

    J1          /ÄÄÄÄ³ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ\      TOP (HDA)

     ÍÍÍÍÍÍÍÍÍÍ/ ×××××××××××××××××××× \ÍÍÍÍÍÍÍÍÍÍ

              (\Ä1ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ40/)    BOTTOM

     Notes on 80 pin I/O connector:

       pins  1 -  4 = +12v        41 - 44 = 12v GND

            34 - 36 = +5v         74 - 76 = 5v GND

                 37 = SYNC             77 = LEDC

                 38 = MTRON            78 = DLYDST

                 39 = SCSIA0           79 = SCSIA1

                 40 = SCSIA2           80 = SCSIA3

  Mating NC connector: AMP US p/n: 2-557103-1 straight-in, Male 80-pin

                                   2-557101-1 right angle to PCB

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º RIGHT SIDE VIEW º  (ST-32155W/WC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Enable T-Res (not used on WC model)

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)

  ³         Reserved ÄÄÙ³³ÀÄÄ Motor Start

  ³   Parity Disable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍÍ          ³

    ³                                              ³

    ³  1 2     1 2      1 2                        ³

    ³ ÖÄ·       ÖÄ·    ÖÄÄÄ·  A Drive Supplies Bus ³

    ³ ºøºø     øºøº    ÓøÄø½  B Drive Supplies Own ³

    ³ Óø½ø     øÓø½     ø ø   C Bus Supplies Drive ³

    ³   A       B        C                         ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

     (not used on WC model)

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (ST-32155W/WC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                                  ÚÄÄ´Reserved. Shipped with cover installed.

                                  ³  ÀDo not remove. Do not install jumpers

                      TOP (HDA)  ÕØÍÍÍ¸     1

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::³::::::ÆÍÍ

                 *    BOTTOM     ÔÍÍÍÍ¾123456

                 ³               J6    ³³³³³³

            LED ÄÙ                     ³³³³³³

                            Remote LED Ù³³³³À ID 1

                           (pin-11 +5v) ³³³ÀÄ ID 2

                              Reserved ÄÙ³ÀÄÄ ID 4

                                         ÀÄÄÄ ID 8

                            ST-32155W

       FORMATTED CAPACITY (MB) __________________2148

       AVERAGE SECTORS PER TRACK ________________125 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________33,408

       CYLINDERS ________________________________4,176 user

       HEADS ______PHYSICAL______________________8

       DISCS (3.5 in) ___________________________4

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (0,4,4)

       INTERNAL TRANSFER RATE (mbits/sec)________44 to 66

       EXTERNAL TRANSFER RATE (mbyte/sec) _______40 Sync

       SPINDLE SPEED (RPM) ______________________5,411

       AVERAGE LATENCY (mSEC) ___________________5.54

       BUFFER ___________________________________512 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________Ultra-SCSI

                                                 ASA II

       BYTES PER TRACK (avg) ____________________75,900

       SECTORS PER DRIVE ________________________

       TPI (TRACKS PER INCH) ____________________4800

       BPI (BITS PER INCH) ______________________

       AVERAGE ACCESS (ms) (read/write)__________10.4/11.4

        With controller overhead

       SINGLE TRACK SEEK (ms) ___________________2.7

       MAX FULL SEEK (ms) _______________________20.4

       MTBF (power-on hours) ____________________800,000

       POWER REQUIREMENTS: +12V START-UP (amps) _1.8

                           +12V TYPICAL (amps) __0.34 idle

                           +5V START-UP (amps) __1.0

                           +5V TYPICAL (amps) ___0.32 idle

                           IDLE (watts) _________

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):        1/25.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.75/146.1

                        Weight    (lbs/kg):      1.5/0.68

Already low-level formatted at the factory with 8 spare sectors

per cylinder and 2 spare cylinder per unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (05/20/96)


ST-32171N
ST-32171N Ultra-SCSI (Barracuda 4LP)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-32171N)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

         50 pin I/O Cable Connection

         ³

    J1ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ1¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     Íµ:::::::::::::::::::::::::ÆÍ³ 0 0 0 0 ³ÍÍ

      ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º SIDE VIEW º  (ST-32171N)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Enable T-Res (N model only)

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)

  ³         Reserved ÄÄÙ³³ÀÄÄ Motor Start

  ³   Parity Disable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍÍ          ³

    ³                                              ³

    ³  1 2     1 2      1 2                        ³

    ³ ÖÄ·       ÖÄ·           A Drive Supplies Bus ³

    ³ ºøºø     øºøº    ÖøÄø·  B Drive Supplies Own ³

    ³ Óø½ø     øÓø½    ÓøÄø½  C Bus Supplies Drive ³

    ³   A       B        C                         ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

    Note: ND drives do not have internal terminators or any other

          way of adding internal terminators to the drive; use

          external active termination if required.

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (ST-32171N)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                                  ÚÄÄ´Reserved. Shipped with cover installed.

                                  ³  ÀDo not remove. Do not install jumpers

                      TOP (HDA)  ÕØÍÍÍ¸     1

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::³::::::ÆÍÍ

                 *    BOTTOM     ÔÍÍÍÍ¾123456

                 ³               J6    ³³³³³³

            LED ÄÙ                     ³³³³³³

                            Remote LED Ù³³³³À ID 1

                           (pin-11 +5v) ³³³ÀÄ ID 2

                              Reserved ÄÁÙÀÄÄ ID 4

                            ST-32171N

       FORMATTED CAPACITY (GB) __________________2.16

       AVERAGE SECTORS PER TRACK ________________165 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________25,890

       CYLINDERS ________________________________5,178 user

       HEADS ______PHYSICAL______________________5

       DISCS (3.5 in) ___________________________3

       MEDIA TYPE _______________________________THIN FILM/MR

       RECORDING METHOD _________________________ZBR PRML (0,4,4)

       INTERNAL TRANSFER RATE (mbits/sec)________80 to 122

       EXTERNAL TRANSFER RATE (mbyte/sec) _______20 Sync

       SPINDLE SPEED (RPM) ______________________7,200

       AVERAGE LATENCY (mSEC) ___________________4.17

       BUFFER ___________________________________512 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________Ultra SCSI

                   ASA II, SCAM level 2

       BYTES PER TRACK __________________________102,500 average

       SECTORS PER DRIVE ________________________

       TPI (TRACKS PER INCH) ____________________5,555

       BPI (PEAK KBITS PER INCH) ________________123

       AVERAGE ACCESS (ms read/write)____________9.2/10.2

         Drive level with controller overhead

       SINGLE TRACK SEEK (ms read/write) ________1.9/2.2

       MAX FULL SEEK (ms) _______________________17.2/18.2

       MTBF (power-on hours) ____________________1,000,000

       SHOCK (G's):

                operating (Read/Write) __________2

                abnormal ________________________10

                nonoperating ____________________75

       ACOUSTICS (Bels typical, sound power) ____4.2

       POWER DISSIPATION (watts/BTUs) Active ____12.9/44

                                      Idle ______8.8/30

       POWER REQUIREMENTS: +12V START-UP (amps) _2.00

                           +12V TYPICAL (amps) __0.52 idle

                           +5V START-UP (amps) __0.78

                           +5V TYPICAL (amps) ___0.46 idle

                           IDLE (watts) _________10

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):      1.0/25.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.47/146

                        Weight    (lbs/kg):      1.5/0.68

Already low-level formatted at the factory with 80 spare sectors at

the end of each 8 cylinder region.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (12/11/96)


ST-32171W
ST-32171W/WC Ultra-SCSI Wide (Barracuda 4LP)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-32171W only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

        (TOP)                   Auxiliary

          ___________________  ÚÄÄ  Ä1¿/ÍÍÍÍÍÍÍÍÍ\

        Í( ×××××××××××××××××1)Í³::::::³³ 0 0 0 0 ÆÍ

          \ÄÄÄÄÄÄÄÄÄÄÄÄ³ÄÄÄÄ/  À  ÄÄ  ÙÀÄ5ÄGÄGÄ12Ù

       68 pin I/O CableÙ        ³³³³³³

       Connection Male          ³³³³³³

                                ³³³³³³

                                ³³³³³³

        Auxiliary option header ³³³³³³

           pin-11 +5v  ÄÄÄÄÄÄÄÄÄÙ³³³³³

           pin-10 GND  ÄÄÄÄÄÄÄÄÄÄÙ³³³³

           SCSI ID = 8 ÄÄÄÄÄÄÄÄÄÄÄÙ³³³

           SCSI ID = 4 ÄÄÄÄÄÄÄÄÄÄÄÄ´³³

            or pin-6 REFIND+ ÄÄÄÄÄÄÙ³³

           SCSI ID = 2 ÄÄÄÄÄÄÄÄÄÄÄÄÄÙ³

           SCSI ID = 1 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

           SCSI ID = 0 (none)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-32171WC only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                     80 pin I/O and DC Power Wall/bracket Connection

                     ³  Female

    J1          /ÄÄÄÄ³ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ\      TOP (HDA)

     ÍÍÍÍÍÍÍÍÍÍ/ ×××××××××××××××××××× \ÍÍÍÍÍÍÍÍÍÍ

              (\Ä1ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ40/)    BOTTOM

     Notes on 80 pin I/O connector:

       pins  1 -  4 = +12v        41 - 44 = 12v GND

            34 - 36 = +5v         74 - 76 = 5v GND

                 37 = SYNC             77 = LEDC

                 38 = MTRON            78 = DLYDST

                 39 = SCSIA0           79 = SCSIA1

                 40 = SCSIA2           80 = SCSIA3

  Mating NC connector: AMP US p/n: 2-557103-1 straight-in, Male 80-pin

                                   2-557101-1 right angle to PCB

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º SIDE VIEW º  (ST-32171W/WC)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Enable T-Res (not used on WC,WD models)

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)

  ³         Reserved ÄÄÙ³³ÀÄÄ Motor Start

  ³   Parity Disable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍ                       ³

    ³                                    A Drive Supplies Bus  ³

    ³  1 2     1 2      1 2      1 2     B Drive Supplies Own  ³

    ³ ÖÄ·       ÖÄ·             Ö Ä ·    C Bus Supplies Drive  ³

    ³ ºøºø     øºøº    ÖøÄø·    ÓøÄø½    D Differential only:  ³

    ³ Óø½ø     øÓø½    ÓøÄø½     ø ø       Drive Supplies Bus  ³

    ³   A       B        C        D                            ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

    (not used on WC model)

    Note: WD drives do not have internal terminators or any other

          way of adding internal terminators to the drive; use

          external active termination if required.

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (ST-32171W/WC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                                  ÚÄÄ´Reserved. Shipped with cover installed.

                                  ³  ÀDo not remove. Do not install jumpers

                      TOP (HDA)  ÕØÍÍÍ¸     1

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::³::::::ÆÍÍ

                 *    BOTTOM     ÔÍÍÍÍ¾123456

                 ³               J6    ³³³³³³

            LED ÄÙ                     ³³³³³³

                            Remote LED Ù³³³³À ID 1

                           (pin-11 +5v) ³³³ÀÄ ID 2

                              Reserved ÄÙ³ÀÄÄ ID 4

                                         ÀÄÄÄ ID 8

                            ST-32171W

       FORMATTED CAPACITY (GB) __________________2.16

       AVERAGE SECTORS PER TRACK ________________165 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________25,890

       CYLINDERS ________________________________5,178 user

       HEADS ______PHYSICAL______________________5

       DISCS (3.5 in) ___________________________3

       MEDIA TYPE _______________________________THIN FILM/MR

       RECORDING METHOD _________________________ZBR PRML (0,4,4)

       INTERNAL TRANSFER RATE (mbits/sec)________80 to 122

       EXTERNAL TRANSFER RATE (mbyte/sec) _______40 Sync

       SPINDLE SPEED (RPM) ______________________7,200

       AVERAGE LATENCY (mSEC) ___________________4.17

       BUFFER ___________________________________512 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________Ultra SCSI

                   ASA II, SCAM level 2

       BYTES PER TRACK __________________________102,500 average

       SECTORS PER DRIVE ________________________

       TPI (TRACKS PER INCH) ____________________5,555

       BPI (PEAK KBITS PER INCH) ________________123

       AVERAGE ACCESS (ms read/write)____________9.2/10.2

         Drive level with controller overhead

       SINGLE TRACK SEEK (ms read/write) ________1.9/2.2

       MAX FULL SEEK (ms) _______________________17.2/18.2

       MTBF (power-on hours) ____________________1,000,000

       SHOCK (G's):

                operating (Read/Write) __________2

                abnormal ________________________10

                nonoperating ____________________75

       ACOUSTICS (Bels typical, sound power) ____4.2

       POWER DISSIPATION (watts/BTUs) Active ____12.9/44

                                      Idle ______8.8/30

       POWER REQUIREMENTS: +12V START-UP (amps) _2.00

                           +12V TYPICAL (amps) __0.52 idle

                           +5V START-UP (amps) __0.78

                           +5V TYPICAL (amps) ___0.46 idle

                           IDLE (watts) _________10

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):      1.0/25.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.47/146

                        Weight    (lbs/kg):      1.5/0.68

Already low-level formatted at the factory with 80 spare sectors at

the end of each 8 cylinder region.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (12/11/96)


ST-32271N
ST-32271N Ultra-SCSI (Barracuda 4LP)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-32271N)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

         50 pin I/O Cable Connection

         ³

    J1ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ1¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     Íµ:::::::::::::::::::::::::ÆÍ³ 0 0 0 0 ³ÍÍ

      ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º SIDE VIEW º  (ST-32271N)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Enable T-Res (N model only)

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)

  ³         Reserved ÄÄÙ³³ÀÄÄ Motor Start

  ³   Parity Disable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍÍ          ³

    ³                                              ³

    ³  1 2     1 2      1 2                        ³

    ³ ÖÄ·       ÖÄ·           A Drive Supplies Bus ³

    ³ ºøºø     øºøº    ÖøÄø·  B Drive Supplies Own ³

    ³ Óø½ø     øÓø½    ÓøÄø½  C Bus Supplies Drive ³

    ³   A       B        C                         ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

    Note: ND drives do not have internal terminators or any other

          way of adding internal terminators to the drive; use

          external active termination if required.

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (ST-32271N)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                                  ÚÄÄ´Reserved. Shipped with cover installed.

                                  ³  ÀDo not remove. Do not install jumpers

                      TOP (HDA)  ÕØÍÍÍ¸     1

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::³::::::ÆÍÍ

                 *    BOTTOM     ÔÍÍÍÍ¾123456

                 ³               J6    ³³³³³³

            LED ÄÙ                     ³³³³³³

                            Remote LED Ù³³³³À ID 1

                           (pin-11 +5v) ³³³ÀÄ ID 2

                              Reserved ÄÁÙÀÄÄ ID 4

                            ST-32271N

       FORMATTED CAPACITY (GB) __________________2.26

       AVERAGE SECTORS PER TRACK ________________172 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________25,890

       CYLINDERS ________________________________5,178 user

       HEADS ______PHYSICAL______________________5

       DISCS (3.5 in) ___________________________3

       MEDIA TYPE _______________________________THIN FILM/MR

       RECORDING METHOD _________________________ZBR PRML (0,4,4)

       INTERNAL TRANSFER RATE (mbits/sec)________83 to 126

       EXTERNAL TRANSFER RATE (mbyte/sec) _______20 Sync

       SPINDLE SPEED (RPM) ______________________7,200

       AVERAGE LATENCY (mSEC) ___________________4.17

       BUFFER ___________________________________512 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________Ultra SCSI

                   ASA II, SCAM level 2

       BYTES PER TRACK __________________________106,980 average

       SECTORS PER DRIVE ________________________

       TPI (TRACKS PER INCH) ____________________5,555

       BPI (PEAK KBITS PER INCH) ________________128

       AVERAGE ACCESS (ms read/write)____________9.2/10.2

         Drive level with controller overhead

       SINGLE TRACK SEEK (ms read/write) ________1.9/2.2

       MAX FULL SEEK (ms) _______________________17.2/18.2

       MTBF (power-on hours) ____________________1,000,000

       SHOCK (G's):

                operating (Read/Write) __________2

                abnormal ________________________10

                nonoperating ____________________75

       ACOUSTICS (Bels typical, sound power) ____4.2

       POWER DISSIPATION (watts/BTUs) Active ____12.9/44

                                      Idle ______8.8/30

       POWER REQUIREMENTS: +12V START-UP (amps) _2.00

                           +12V TYPICAL (amps) __0.52 idle

                           +5V START-UP (amps) __0.78

                           +5V TYPICAL (amps) ___0.46 idle

                           IDLE (watts) _________10

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):      1.0/25.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.47/146

                        Weight    (lbs/kg):      1.5/0.68

Already low-level formatted at the factory with 80 spare sectors at

the end of each 8 cylinder region.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (12/11/96)


ST-32271W
ST-32271W/WC Ultra-SCSI Wide (Barracuda 4LP)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-32271W only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

        (TOP)                   Auxiliary

          ___________________  ÚÄÄ  Ä1¿/ÍÍÍÍÍÍÍÍÍ\

        Í( ×××××××××××××××××1)Í³::::::³³ 0 0 0 0 ÆÍ

          \ÄÄÄÄÄÄÄÄÄÄÄÄ³ÄÄÄÄ/  À  ÄÄ  ÙÀÄ5ÄGÄGÄ12Ù

       68 pin I/O CableÙ        ³³³³³³

       Connection Male          ³³³³³³

                                ³³³³³³

                                ³³³³³³

        Auxiliary option header ³³³³³³

           pin-11 +5v  ÄÄÄÄÄÄÄÄÄÙ³³³³³

           pin-10 GND  ÄÄÄÄÄÄÄÄÄÄÙ³³³³

           SCSI ID = 8 ÄÄÄÄÄÄÄÄÄÄÄÙ³³³

           SCSI ID = 4 ÄÄÄÄÄÄÄÄÄÄÄÄ´³³

            or pin-6 REFIND+ ÄÄÄÄÄÄÙ³³

           SCSI ID = 2 ÄÄÄÄÄÄÄÄÄÄÄÄÄÙ³

           SCSI ID = 1 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

           SCSI ID = 0 (none)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-32271WC only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                     80 pin I/O and DC Power Wall/bracket Connection

                     ³  Female

    J1          /ÄÄÄÄ³ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ\      TOP (HDA)

     ÍÍÍÍÍÍÍÍÍÍ/ ×××××××××××××××××××× \ÍÍÍÍÍÍÍÍÍÍ

              (\Ä1ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ40/)    BOTTOM

     Notes on 80 pin I/O connector:

       pins  1 -  4 = +12v        41 - 44 = 12v GND

            34 - 36 = +5v         74 - 76 = 5v GND

                 37 = SYNC             77 = LEDC

                 38 = MTRON            78 = DLYDST

                 39 = SCSIA0           79 = SCSIA1

                 40 = SCSIA2           80 = SCSIA3

  Mating NC connector: AMP US p/n: 2-557103-1 straight-in, Male 80-pin

                                   2-557101-1 right angle to PCB

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º SIDE VIEW º  (ST-32271W/WC)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Enable T-Res (not used on WC,WD models)

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)

  ³         Reserved ÄÄÙ³³ÀÄÄ Motor Start

  ³   Parity Disable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍ                       ³

    ³                                    A Drive Supplies Bus  ³

    ³  1 2     1 2      1 2      1 2     B Drive Supplies Own  ³

    ³ ÖÄ·       ÖÄ·             Ö Ä ·    C Bus Supplies Drive  ³

    ³ ºøºø     øºøº    ÖøÄø·    ÓøÄø½    D Differential only:  ³

    ³ Óø½ø     øÓø½    ÓøÄø½     ø ø       Drive Supplies Bus  ³

    ³   A       B        C        D                            ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

    (not used on WC model)

    Note: WD drives do not have internal terminators or any other

          way of adding internal terminators to the drive; use

          external active termination if required.

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (ST-32271W/WC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                                  ÚÄÄ´Reserved. Shipped with cover installed.

                                  ³  ÀDo not remove. Do not install jumpers

                      TOP (HDA)  ÕØÍÍÍ¸     1

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::³::::::ÆÍÍ

                 *    BOTTOM     ÔÍÍÍÍ¾123456

                 ³               J6    ³³³³³³

            LED ÄÙ                     ³³³³³³

                            Remote LED Ù³³³³À ID 1

                           (pin-11 +5v) ³³³ÀÄ ID 2

                              Reserved ÄÙ³ÀÄÄ ID 4

                                         ÀÄÄÄ ID 8

                            ST-32271W

       FORMATTED CAPACITY (GB) __________________2.26

       AVERAGE SECTORS PER TRACK ________________172 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________25,890

       CYLINDERS ________________________________5,178 user

       HEADS ______PHYSICAL______________________5

       DISCS (3.5 in) ___________________________3

       MEDIA TYPE _______________________________THIN FILM/MR

       RECORDING METHOD _________________________ZBR PRML (0,4,4)

       INTERNAL TRANSFER RATE (mbits/sec)________83 to 126

       EXTERNAL TRANSFER RATE (mbyte/sec) _______40 Sync

       SPINDLE SPEED (RPM) ______________________7,200

       AVERAGE LATENCY (mSEC) ___________________4.17

       BUFFER ___________________________________512 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________Ultra SCSI

                   ASA II, SCAM level 2

       BYTES PER TRACK __________________________106,980 average

       SECTORS PER DRIVE ________________________

       TPI (TRACKS PER INCH) ____________________5,555

       BPI (PEAK KBITS PER INCH) ________________128

       AVERAGE ACCESS (ms read/write)____________9.2/10.2

         Drive level with controller overhead

       SINGLE TRACK SEEK (ms read/write) ________1.9/2.2

       MAX FULL SEEK (ms) _______________________17.2/18.2

       MTBF (power-on hours) ____________________1,000,000

       SHOCK (G's):

                operating (Read/Write) __________2

                abnormal ________________________10

                nonoperating ____________________75

       ACOUSTICS (Bels typical, sound power) ____4.2

       POWER DISSIPATION (watts/BTUs) Active ____12.9/44

                                      Idle ______8.8/30

       POWER REQUIREMENTS: +12V START-UP (amps) _2.00

                           +12V TYPICAL (amps) __0.52 idle

                           +5V START-UP (amps) __0.78

                           +5V TYPICAL (amps) ___0.46 idle

                           IDLE (watts) _________10

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):      1.0/25.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.47/146

                        Weight    (lbs/kg):      1.5/0.68

Already low-level formatted at the factory with 80 spare sectors at

the end of each 8 cylinder region.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (12/11/96)


ST-32430N
ST-32430N SCSI-2 Fast (Hawk 2LP)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-32430N only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

         50 pin I/O Cable Connection

         ³

    J1ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ1¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     Íµ:::::::::::::::::::::::::ÆÍ³ 0 0 0 0 ³ÍÍ

      ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º RIGHT SIDE VIEW º  (ST-32430N)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Enable T-Res

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)

  ³         Reserved ÄÄÙ³³ÀÄÄ Motor Start

  ³    Parity Enable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍÍ          ³

    ³                                              ³

    ³  1 2     1 2      1 2                        ³

    ³ ÖÄ·       ÖÄ·    ÖÄÄÄ·  A Drive Supplies Bus ³

    ³ ºøºø     øºøº    ÓøÄø½  B Drive Supplies Own ³

    ³ Óø½ø     øÓø½     ø ø   C Bus Supplies Drive ³

    ³   A       B        C                         ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º LEFT SIDE VIEW º  (ST-32430N)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼             If these ID jumpers are used,

                                 then ID jumpers shown in front

                                 view ARE NOT USED.

  FRONT                TOP (HDA)                 J5 ÕÍÍ1¸ ÕÍ¸BACK

   OF   ÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ:::ÆÍµJ1 OF

  DRIVE                BOTTOM                       ÔÍÍÍ¾ ÔÍ¾DRIVE

                                                     ³³³

                                               ID 1 ÄÙ³ÀÄ ID 4

                                                    ID 2

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (ST-32430N)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                                  ÚÄÄ´Reserved. Shipped with cover installed.

                                  ³  ÀDo not remove. Do not install jumpers

                      TOP (HDA)  ÕØÍÍÍ¸     1

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::³::::::ÆÍÍ

                 *    BOTTOM     ÔÍÍÍÍ¾123456

                 ³               J6    ³³³³³³

            LED ÄÙ                     ³³³³³³

                                  ID 4 Ù³³³³À Reserved

                                  ID 2 ÄÙ³³ÀÄ Remote LED (pin-3 +5v)

                                  ID 1 ÄÄÙÀÄÄ Reserved

    If these ID jumper are used, then ID jumpers shown in left side view J5

      ARE NOT USED.

                            ST-32430N

                            Hawk 2LP

       UNFORMATTED CAPACITY (MB) ________________2590

       FORMATTED CAPACITY (xx SECTORS) (MB) _____2140

       AVERAGE SECTORS PER TRACK ________________116

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________35,928

       CYLINDERS ________________________________3992

       HEADS ______PHYSICAL______________________9

       DISCS (3.5 in) ___________________________5

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec)________35.8 to 62.2

       EXTERNAL TRANSFER RATE (mbyte/sec) _______5.2 Async

       EXTERNAL TRANSFER RATE (mbyte/sec) _______10 Sync

       SPINDLE SPEED (RPM) ______________________5411

       AVERAGE LATENCY (mSEC) ___________________5.54

       BUFFER ___________________________________512 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 FAST

                                                 ASA II

       TPI (TRACKS PER INCH) ____________________4200

       AVERAGE ACCESS (ms) (read/write)__________10.4/11.4

         Including controller overhead

       SINGLE TRACK SEEK (ms) (read/write)_______2.1/2.5

       MAX FULL SEEK (ms) (read/write)___________20.4/21.4

       MTBF (power-on hours) ____________________800,000

       SHOCK (G's):

                operating (Read/Write) __________10

                nonoperating ____________________75

       ACOUSTICS (typ/max dBA) __________________

       POWER REQUIREMENTS: +12V START-UP (amps) _2.0

                           +12V TYPICAL (amps) __0.35

                           +5V START-UP (amps) __0.61

                           +5V TYPICAL (amps) ___0.35

                           TYPICAL (watts) ______6

                           MAXIMUM (watts) ______9

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):     1.00/25.4

                        Width  (inches/mm):     4.02/101.6

                        Depth  (inches/mm):     5.74/145.8

                        Weight    (lbs/kg):     1.5/0.68

Already low-level formatted at the factory with 1 spare sector

per head (all spare sectors are on one track) and 2 spare

cylinders per unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (08/26/94)


ST-32430W
ST-32430W/WD/WC Fast Wide SCSI-2 (Hawk 2LP)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-32430W/WD only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

        (TOP)                   Auxiliary

          ___________________  ÚÄÄ  Ä1¿/ÍÍÍÍÍÍÍÍÍ\

        Í( ×××××××××××××××××1)Í³::::::³³ 0 0 0 0 ÆÍ

          \ÄÄÄÄÄÄÄÄÄÄÄÄ³ÄÄÄÄ/  À  ÄÄ  ÙÀÄ5ÄGÄGÄ12Ù

       68 pin I/O CableÙ        ³³³³³³

       Connection Male          ³³³³³³

                                ³³³³³³

                                ³³³³³³

        Auxiliary option header ³³³³³³

           pin-11 +5v  ÄÄÄÄÄÄÄÄÄÙ³³³³³

           pin-10 GND  ÄÄÄÄÄÄÄÄÄÄÙ³³³³

           SCSI ID = 8 ÄÄÄÄÄÄÄÄÄÄÄÙ³³³

           SCSI ID = 4 ÄÄÄÄÄÄÄÄÄÄÄÄ´³³

            or pin-6 REFIND+ ÄÄÄÄÄÄÙ³³

           SCSI ID = 2 ÄÄÄÄÄÄÄÄÄÄÄÄÄÙ³

           SCSI ID = 1 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

           SCSI ID = 0 (none)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-32430WC only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                     80 pin I/O and DC Power Wall/bracket Connection

                     ³  Female

    J1          /ÄÄÄÄ³ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ\      TOP (HDA)

     ÍÍÍÍÍÍÍÍÍÍ/ ×××××××××××××××××××× \ÍÍÍÍÍÍÍÍÍÍ

              (\Ä1ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ40/)    BOTTOM

     Notes on 80 pin I/O connector:

       pins  1 -  4 = +12v        41 - 44 = 12v GND

            34 - 36 = +5v         74 - 76 = 5v GND

                 37 = SYNC             77 = LEDC

                 38 = MTRON            78 = DLYDST

                 39 = SCSIA0           79 = SCSIA1

                 40 = SCSIA2           80 = SCSIA3

  Mating NC connector: AMP US p/n: 2-557103-1 straight-in, Male 80-pin

                                   2-557101-1 right angle to PCB

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º RIGHT SIDE VIEW º  (Both ST-32430W and ST-32430WC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Enable T-Res

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)

  ³         Reserved ÄÄÙ³³ÀÄÄ Motor Start

  ³    Parity Enable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍÍ          ³

    ³                                              ³

    ³  1 2     1 2      1 2                        ³

    ³ ÖÄ·       ÖÄ·    ÖÄÄÄ·  A Drive Supplies Bus ³

    ³ ºøºø     øºøº    ÓøÄø½  B Drive Supplies Own ³

    ³ Óø½ø     øÓø½     ø ø   C Bus Supplies Drive ³

    ³   A       B        C                         ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

  Note: The model ST-32430WC drive cannot furnish terminator power,

because no pins on the 80 pin I/O connector are devoted to terminator

power.

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (Both ST-32430W and ST-32430WC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                      TOP (HDA)   J6  ÕÍÍÍÍÍ1¸

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::::ÆÍ

                 *    BOTTOM          ÔÍÍÍÍÍÍ¾

                 ³                     ³³³³³³

            LED ÄÙ                     ³³³³³³

                                       ³³³³³³

                                       ³³³³³³

               Auxiliary option header ³³³³³³

                  pin-11 +5v  ÄÄÄÄÄÄÄÄÄÙ³³³³³

                  pin-10 GND  ÄÄÄÄÄÄÄÄÄÄÙ³³³³

                  SCSI ID = 8 ÄÄÄÄÄÄÄÂÄÄÄÙ³³³

                   or pin-8 BUSY ÄÄÄÄÙ    ³³³

                  SCSI ID = 4 ÄÄÄÄÄÄÄÂÄÄÄÄÙ³³

                   or pin-6 REFIND+ ÄÙ     ³³

                  SCSI ID = 2 ÄÄÄÄÄÄÄÄÄÄÄÄÄÙ³

                  SCSI ID = 1 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

                  SCSI ID = 0 (none)

      If these ID jumper are used, then

         ID jumpers shown in left side view J5

         or 80 pin I/O cable ARE NOT USED.

                            ST-32430W

                            Hawk 2LP

       UNFORMATTED CAPACITY (MB) ________________2600

       FORMATTED CAPACITY (xx SECTORS) (MB) _____2147

       AVERAGE SECTORS PER TRACK ________________116

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________35,928

       CYLINDERS ________________________________3992

       HEADS ______PHYSICAL______________________9

       DISCS (3.5 in) ___________________________5

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec)________35.8 to 62.2

       EXTERNAL TRANSFER RATE (mbytes/sec)_______20 Sync.

       SPINDLE SPEED (RPM) ______________________5411

       AVERAGE LATENCY (mSEC) ___________________5.54

       BUFFER ___________________________________512 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 FAST Wide

                                                 ASA II

       TPI (TRACKS PER INCH) ____________________4200

       AVERAGE ACCESS (ms) (read/write)__________10.4/11.4

         Drive level with controller overhead

       SINGLE TRACK SEEK (ms) (read/write)_______2.1/2.5

       MAX FULL SEEK (ms) (read/write)___________20.4/21.4

       MTBF (power-on hours) ____________________800,000

       SHOCK (G's):

                operating (Read/Write) __________10

                nonoperating ____________________75

       ACOUSTICS (typ/max dBA) __________________/

       POWER REQUIREMENTS: +12V START-UP (amps) _2.0

                           +12V TYPICAL (amps) __0.35

                           +5V START-UP (amps) __0.61

                           +5V TYPICAL (amps) ___0.36

                           TYPICAL (watts) ______7

                           MAXIMUM (watts) ______

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):     1.00/25.4

                        Width  (inches/mm):     4.02/102.1

                        Depth  (inches/mm):     5.77/146.6

                        Weight    (lbs/kg):     1.5/0.68

Already low-level formatted at the factory with 8 spare sectors

per cylinder and 2 spare cylinders/unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/24/94)


ST-325N
ST-325N SCSI Interface

    ³J2 10-pin version (located

    ³    on SIDE, near rear)

    ÀÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ

          ³

                    1

(front) ø  ø  ø  ø  ß  (back)

        ø  ø  ø  ø  ø                                            4-pin DC

 ÍÍÍÍÍÏÍÑÍÍÑÍÍÑÍÍÑÍÍÑÍÍÍÍÍÍÍ               SCSI  Interface       Power

        1  2  4  ³  P                      connector            ÚÄ1Ä2Ä3Ä4Ä¿

        ÀÄÄÅÄÄÙ  ³  ³               ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸ ³ 0 0 0 0 ³

           ³     ³  ³               ³::::::::::::::::::::::::1³ \12ÄGÄGÄ5Ä/

           ³     ³  ³         ÍÍÍÍÍÍÏÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÍÍÍÍÍÍÍÍÍÍ

           ³     ³  ³                 ÚÄÄÄÄÄÄ1 ÚÄÄÄÄÄÄ1 ÚÄÄÄÄÄÄ1

           ³     ³  ³                 ÀÄÄÄÄÄÄÙ ÀÄÄÄÄÄÄÙ ÀÄÄÄÄÄÄÙ

           ³     ³  ³                  Termination Resistors

           ³     ³  ³

           ³     ³  ÀÄ Parity Check Enable

           ³     ÀÄÄÄÄ Reserved

           ÀÄÄÄÄÄÄÄÄÄÄ Drive ID's, ID 0 (none) for single drive system

                        ST - 325N

       UNFORMATTED CAPACITY (MB) ________________25

       FORMATTED CAPACITY (32 SECTORS) (MB) _____21.4

       ACTUATOR TYPE ____________________________STEPPER

       TRACKS ___________________________________1,308

       CYLINDERS ________________________________654

       HEADS ____________________________________2

       DISCS ____________________________________1

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL 2,7

       INTERNAL TRANSFER RATE (mbits/sec) _______9.2

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________2K or 8K

       INTERFACE ________________________________SCSI

       BYTES PER TRACK __________________________16,384

       SECTORS PER DRIVE ________________________41,856

       TPI (TRACKS PER INCH) ____________________1,015

       BPI (BITS PER INCH) ______________________22,762

       AVERAGE ACCESS (ms) ______________________28

       SINGLE TRACK SEEK (ms) ___________________7

       MTBF (power-on hours) ____________________50,000

       POWER REQUIREMENTS: +12V START-UP (amps) _1.2

                           +5V TYPICAL (amps) ___0.26

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________7.0

                           IDLE _________________2.4

                           STANDBY ______________1.4

                           SLEEP ________________

       BUFFERED STEP PULSE RATE (micro sec) _____

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl)________________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0

Seagate reserves the right to change, without notice, product

offerings or specifications. (5/6/91)


ST-32550N
ST-32550N SCSI-2 Fast (Barracuda 2LP)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-32550N/ND)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

         50 pin I/O Cable Connection

         ³

      ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ1¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     Íµ:::::::::::::::::::::::::ÆÍ³ 0 0 0 0 ³ÍÍ

      ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

  These pins not on differential --> (o o)  back

   model ND                 ÚÄÄÄÄÄÄ   o o

                            ³         o o   front

                            ³        2   1

                            ³

  ÚÄ J1 Terminator options ÄÁÄ (single-ended) ÄÄÄÄÄÄÄÄÄÄÄ¿

  ³      o o       o o       o o       o o      ÕoÍo¸    ³

  ³      o o       oÕo¸     Õo¸o      ÕoÑo¸      o o     ³

  ³     ÕoÍo¸      o³o³     ³o³o      ³o³o³      o o     ³

  ³     2ÍÍÍ1     2 ÔÍ1     2Í¾ 1     2ÍÏÍ1     2   1    ³

  ³      A         B         C         D         E       ³

  ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

     A - Term. power from drive (default)

     B - Term. power to SCSI bus (only option available for differential ND)

     C - Term. power from SCSI bus

     D - Term. power to SCSI bus and drive

     E - Enable SCSI terminator (jumper on pins 5-6)

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º RIGHT SIDE VIEW º  (ST-32550N)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  123456789                   TOP (HDA)  FRONT

 OF   I/OÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           :::::::::                   BOTTOM     DRIVE

                     ³³³³³³³³³

      1-2 Reserved ÄÄÁÙ³³³³ÀÁÁÄÄ Reserved 7-9

  3 Parity Disable ÄÄÄÄÙ³³ÀÄÄÄÄÄ Delay Motor Start 6

   4 Write Protect ÄÄÄÄÄÙÀÄÄÄÄÄÄ Motor Start Enable 5

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (ST-32550N)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                                     J4

                      TOP (HDA)             1

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::::::::ÆÍÍ

                      BOTTOM      ³³³³³³³³³³

                                  ³³³³³³³³³³

                        Reserved ÄÁÁÁÙ³³³³³ÀÄ Reserved

                            ID 4 ÄÄÄÄÄÙ³³³ÀÄÄ Remote LED (pin-3 +5v)

                            ID 2 ÄÄÄÄÄÄÙ³ÀÄÄÄ Spindle Synchronization

                            ID 1 ÄÄÄÄÄÄÄÙ      (pin-6 REF SIG+)

                            ST-32550N

                            Barracuda 2LP

       UNFORMATTED CAPACITY (MB) ________________2541.3

       FORMATTED CAPACITY (xx SECTORS) (MB) _____2147.4

       AVERAGE SECTORS PER TRACK ________________108 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________38,610

       CYLINDERS ________________________________3,510 user

       HEADS ______PHYSICAL______________________11

       DISCS (3.5 in) ___________________________6

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec)________49.4 to 72.0

       EXTERNAL TRANSFER RATE (mbyte/sec) _______5 Async

       EXTERNAL TRANSFER RATE (mbyte/sec) _______2.5 to 10 Sync

       SPINDLE SPEED (RPM) ______________________7,200

       AVERAGE LATENCY (mSEC) ___________________4.17

       BUFFER ___________________________________512 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 FAST

                                                 ASA II

       BYTES PER TRACK __________________________64,160 average

       SECTORS PER DRIVE ________________________

       TPI (TRACKS PER INCH) ____________________4,048

       BPI (BITS PER INCH) ______________________72,680

       AVERAGE ACCESS (ms) (read/write)__________8.0/9.0

         Drive level without controller overhead

       SINGLE TRACK SEEK (ms) ___________________0.6/0.9

       MAX FULL SEEK (ms) _______________________17/19

       MTBF (power-on hours) ____________________800,000

       SHOCK (G's):

                operating (Read/Write) __________2

                nonoperating ____________________50

       ACOUSTICS (typ/max dBA) __________________4.7/

       POWER DISSIPATION (watts/BTUs) Active ____11/35

                                      Idle ______9/31

       POWER REQUIREMENTS: +12V START-UP (amps) _1.26

                           +12V TYPICAL (amps) __0.88 idle

                           +5V START-UP (amps) __0.91

                           +5V TYPICAL (amps) ___0.33 idle

                           IDLE (watts) _________

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):     1.00/25.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.75/146.05

                        Weight     (lbs/g):     1.2/545

Already low-level formatted at the factory with 9 spare sectors

per cylinder and 1 spare cylinder per unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (05/20/96)


ST-32550W
ST-32550W/WC SCSI-2 Fast Wide (Barracuda 2LP)

ÉÍÍÍÍÍÍÍÍÍÍÍ»

º REAR VIEW º  (ST-32550W only)

ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                                         ÚÄÄÄÄÄ ID 8

                                         ³ÚÄÄÄÄ ID 4

                                         ³³ÚÄÄÄ ID 2

                                         ³³³ÚÄÄ ID 1

               (TOP)                  J5 ³³³³

                 ___________________  ÚÄÄ  Ä1¿/ÍÍÍÍÍÍÍÍÍ\

               Í( ×××××××××××××××××1)Í³::::::³³ 0 0 0 0 ÆÍ

                 \ÄÄÄÄÄÄÄÄÄÄÄÄ³ÄÄÄÄ/  À  ÄÄ  ÙÀÄ5ÄGÄGÄ12Ù

              68 pin I/O CableÙ        ³³

              Connection               ³³   back  o o <--These pins not on

                                       ³³         o o   differential model WD

       Spindle Synch Cable Connector ÄÄÙ³  front  o o   See special WD Term

         (pin-11 SSREF, pin-12 ground)  ³        2 ³ 1  Power detail below

       Remote LED Connector ÄÄÄÄÄÄÄÄÄÄÄÄÙ     ÚÄÄÄÄÙ

        [pin-9 cathode (neg),                 ³

         pin-10 anode (pos)]                  ³

                                              ³

                                              ³

ÚÄ J1 Terminator options (single-ended ONLY) ÄÁÄÄÂÄ (differential) Ä¿

³  o o       o o       o o       o o      ÕoÍo¸  ³                  ³

³  o o       oÕo¸     Õo¸o      ÕoÑo¸      o o   ³    back 1o¸o2    ³

³ ÕoÍo¸      o³o³     ³o³o      ³o³o³      o o   ³         ³o³o     ³

³ 2ÍÍÍ1     2 ÔÍ1     2Í¾ 1     2ÍÏÍ1     2   1  ³   front ÔÍ¾      ³

³  A         B         C         D         E     ³          C       ³

ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

  A - Term. power from drive (default)

  B - Term. power to SCSI bus

  C - Term. power from SCSI bus

  D - Term. power to SCSI bus and drive

  E - Enable SCSI terminator (jumper on pins 5-6)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-32550WC only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                     80 pin I/O and DC Power Wall/bracket Connection

                     ³  Female

    J1          /ÄÄÄÄ³ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ\      TOP (HDA)

     ÍÍÍÍÍÍÍÍÍÍ/ ×××××××××××××××××××× \ÍÍÍÍÍÍÍÍÍÍ

              (\Ä1ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ40/)    BOTTOM

     Notes on 80 pin I/O connector:

       pins  1 -  4 = +12v        41 - 44 = 12v GND

            34 - 36 = +5v         74 - 76 = 5v GND

                 37 = SYNC             77 = LEDC

                 38 = MTRON            78 = DLYDST

                 39 = SCSIA0           79 = SCSIA1

                 40 = SCSIA2           80 = SCSIA3

  Mating WC connector: AMP US p/n: 2-557103-1 straight-in, Male 80-pin

                                   2-557101-1 right angle to PCB

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º RIGHT SIDE VIEW º  (ST-32550W/WC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  123456789                   TOP (HDA)  FRONT

 OF   I/OÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           :::::::::                   BOTTOM     DRIVE

                     ³³³³³³³³³

      1-2 Reserved ÄÄÁÙ³³³³ÀÁÁÄÄ Reserved 7-9

  3 Parity Disable ÄÄÄÄÙ³³ÀÄÄÄÄÄ Delay Motor Start 6

   4 Write Protect ÄÄÄÄÄÙÀÄÄÄÄÄÄ Motor Start Enable 5

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (ST-32550W/WC)      ÚÄÄÄÄÄÄÄ +5V

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼                      ³ÚÄÄÄÄÄÄ Enable SCSI terminator

                                      ³³ÚÄÄÄÄÄ ID 8

                                      ³³³ÚÄÄÄÄ ID 4

                                      ³³³³ÚÄÄÄ ID 2

                                      ³³³³³ÚÄÄ ID 1   (J4 top row)

                      TOP (HDA)       ³³³³³³1

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::::::::ÆÍÍ  J4

                      BOTTOM      ³³³³³³³³³³

                                  ³³³³³³³³³³          (J4 bottom row)

                        Reserved ÄÁÁÁÙ³³³³³³

                   No connection ÄÄÄÄÄÙ³³³³³

                          Ground ÄÄÄÄÄÄÙ³³³³

         Unit Active LED pin (+) ÄÄÄÄÄÄÄÙ³³³

          SSREF (+) spindle sync ÄÄÄÄÄÄÄÄÙ³³

                   Vendor Unique ÄÄÄÄÄÄÄÄÄÙ³

               Fault LED pin (+) ÄÄÄÄÄÄÄÄÄÄÙ

                            ST-32550W

                            Barracuda 2LP

       UNFORMATTED CAPACITY (MB) ________________2541.3

       FORMATTED CAPACITY (xx SECTORS) (MB) _____2147.4

       AVERAGE SECTORS PER TRACK ________________108 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________38,610

       CYLINDERS ________________________________3,510 user

       HEADS ______PHYSICAL______________________11

       DISCS (3.5 in) ___________________________6

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec)________49.4 to 72.0

       EXTERNAL TRANSFER RATE (mbyte/sec) _______5 Async

       EXTERNAL TRANSFER RATE (mbyte/sec) _______5.0 to 20 Sync

       SPINDLE SPEED (RPM) ______________________7,200

       AVERAGE LATENCY (mSEC) ___________________4.17

       BUFFER ___________________________________512 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 FAST Wide

                                                 ASA II

       BYTES PER TRACK __________________________64,160 average

       SECTORS PER DRIVE ________________________

       TPI (TRACKS PER INCH) ____________________4,048

       BPI (BITS PER INCH) ______________________72,680

       AVERAGE ACCESS (ms) (read/write)__________8.0/9.0

         Drive level without controller overhead

       SINGLE TRACK SEEK (ms) ___________________0.6/0.9

       MAX FULL SEEK (ms) _______________________17/19

       MTBF (power-on hours) ____________________800,000

       SHOCK (G's):

                operating (Read/Write) __________2

                nonoperating ____________________50

       ACOUSTICS (typ/max dBA) __________________4.7/

       POWER DISSIPATION (watts/BTUs) Active ____11/35

                                      Idle ______9/31

       POWER REQUIREMENTS: +12V START-UP (amps) _1.26

                           +12V TYPICAL (amps) __0.88 idle

                           +5V START-UP (amps) __0.91

                           +5V TYPICAL (amps) ___0.33 idle

                           IDLE (watts) _________

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):     1.00/25.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.75/146.05

                        Weight     (lbs/g):     1.2/545

Already low-level formatted at the factory with 9 spare sectors

per cylinder and 1 spare cylinder per unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (05/20/96)


ST-3283N Jumpers

ST-3283N

Rear View              ÚÄ 50 pin SCSI Interface I/O connector

                       ³

                       ³                    DC power

   (TOP)      ÕÍÍÍÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍÍÍ¸ /Ä5ÄGÄGÄ12\

          ÍÍÍÍµ::::::::::::::::::::::::1ÆÍµ 0 0 0 0 ÆÍ

   (BOTTOM)   ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄÄÄÄÄÄÄÄÄÙ

                 ÚÄÄÄÄÄ1 ÚÄÄÄÄÄ1 ÚÄÄÄÄÄ1

                 ÀÄÄÄÄÄÙ ÀÄÄÄÄÄÙ ÀÄÄÄÄÄÙ

                  Terminating Resistor Packs

ST-3283N

Left View                       o o o1

              (TOP)             o o o     ÕÍ¸

     Front....ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍØÍØÍØÍÍÍÍÍµ I/O connector

                                ³ ³ ³     ÔÍ¾

             SCSI Address ID 1 ÄÙ ³ ³

                          ID 2 ÄÄÄÙ ³

                          ID 4 ÄÄÄÄÄÙ

ST-3283N

Right View  (board part number 260035, early version)

                 o o4                    (TOP)              o o4

           ÕÍ¸  1o³o      o o o6                           1o o

    DC Power ÆÍÍÍÍØÍÍÍÍÍÍ1o³o o ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍØÍØÍ

           ÔÍ¾    ³      ÄÄÁÄÄÄÄ                            ³ ³

                  ³      Active/Passive Termination         ³ À Remote Start

                ÄÄÁÄÄ    ÄÄÂÄÄÄÄ                            ÀÄÄ Parity Enable

     Terminator Power  ÚÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

                ÄÄÂÄÄ  ³ Active: Pins 1 & 2 shorted     ³

                  ³    ³         only (+2.85V to        ³

                  ³    ³         110 ê) for FAST        ³

                  ³    ³         SCSI;                  ³

                  ³    ³Passive: Pins 2 & 4 shorted     ³

                  ³    ³         AND pins 5 & 6 shorted ³

                  ³    ³         (+5V and GND to        ³

                  ³    ³         220/330 ê) for         ³

                  ³    ³         standard SCSI.         ³

                  ³    ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

                  ³

    ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³Terminator Power: From SCSI Connector ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Pins 1 & 2     ³

    ³                  From Power Connector ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Pins 1 & 3     ³

    ³                  To SCSI Connector Only ÄÄÄÄÄÄÄÄÄÄÄÄÄ Pins 3 & 4     ³

    ³                  From Power Connector and ÄÄÄÄÄÄÄÄÄÄÄ Pins 1 & 2 AND ³

    ³                    to SCSI Bus --------------------------- 3 & 4     ³

    ³                 Terminating Resistors not Installed Ä Pins 2 & 4     ³

    ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

ST-3283N

Right View

                 o o4     o o o6         (TOP)

           ÕÍ¸  1o³o     1o³o o

    DC Power ÆÍÍÍÍØÍÍÍÍÍÍ  ³    ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

           ÔÍ¾    ³        ³

                  ³      ÄÄÁÄÄÄÄ

                  ³      Active/Passive Termination

                ÄÄÁÄÄ    ÄÄÂÄÄÄÄ

     Terminator Power  ÚÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

                ÄÄÂÄÄ  ³ Active: Pins 1 & 2 shorted     ³

                  ³    ³         only (+2.85V to        ³

                  ³    ³         110 ê) for FAST        ³

                  ³    ³         SCSI.                  ³

                  ³    ³Passive: Pins 2 & 4 shorted     ³

                  ³    ³         AND pins 5 & 6 shorted ³

                  ³    ³         (+5V and GND to        ³

                  ³    ³         220/330 ê) for         ³

                  ³    ³         standard SCSI; default.³

                  ³    ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

                  ³

    ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³Terminator Power: From SCSI Connector ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Pins 1 & 2     ³

    ³                  From Power Connector (default) ÄÄÄÄÄ Pins 1 & 3     ³

    ³                  To SCSI Connector Only ÄÄÄÄÄÄÄÄÄÄÄÄÄ Pins 3 & 4     ³

    ³                  From Power Connector and ÄÄÄÄÄÄÄÄÄÄÄ Pins 1 & 2 AND ³

    ³                    to SCSI Bus --------------------------- 3 & 4     ³

    ³                 Terminating Resistors not Installed Ä Pins 2 & 4     ³

    ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

ST-3283N

Front View (board part number 260035, early version)

     (TOP)          o o o o o o o+

               ÍÍÍÍ o Í o o o o o-ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

     (BOTTOM)      1ÀÄÄÄÂÄÙ ³ ³ ³

                        ³   ³ ³ ÀÄÄ Remote LED

                        ³   ³ ÀÄÄÄÄ Reserved

                        ³   ÀÄÄÄÄÄÄ Ext. Spindle Clock Synch

                        ³            pin-9 is Clock Ground

                        ³         Ú Reserved

                        ÀÄÄÄÄÄÄÄÄÄ´ Reserved

                                  ³ Reserved pin-3 removed for key

                                  À Reserved

ST-3283N

Front View

                 ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ SCSI ID's (none for ID0)

                 ³                    not used if ID set on side jumpers

                 ³   ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Ext. Spindle Clock Synch

                 ³   ³                pin-5 is Clock Ground

                 ³   ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄ Remote LED

  (TOP)        ÚÄÁÄ¿ ³ ³     ÚÄÄÄÄÄÄ Reserved

               4 2 1 ³ ³ ÚÄÄÄÁÄÄÄ¿

               o o o o o-o o o o o

              1o o o o o+o o o o o  o o o o+

               ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ1o o o o-ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                    ³ ³ ³ ³

  (BOTTOM)                          ³ ³ ³ ÀÄÄ Remote LED

                                    ³ ³ ÀÄÄÄÄ Ext. Spindle Clock Synch

                                    ³ ³        pin-5 is Clock Ground

                                    ³ ÀÄÄÄÄÄÄ Remote Start Enable

                                    ÀÄÄÄÄÄÄÄÄ Parity Enable


ST-3283N

        ST-3283N jumpers

                             ST-3283N

       UNFORMATTED CAPACITY _____________________

       FORMATTED CAPACITY (xx SECTORS) __________248.62

       AVERAGE SECTORS PER TRACK ________________57 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________8,455

       CYLINDERS ________________________________1,689 (user)

       HEADS ____________________________________5

       DISCS (3.5 in) ___________________________3

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______15.0 to 24.4

       EXTERNAL TRANSFER RATE (mbyte/sec) _______4 Async

       EXTERNAL TRANSFER RATE (mbyte/sec) _______10 Sync

       SPINDLE SPEED (RPM) ______________________4,500

       AVERAGE LATENCY (mSEC) ___________________6.67

       BUFFER ___________________________________128 Kbyte SeaCache

        Read Look-Ahead Multisegmented cache

       INTERFACE ________________________________SCSI-2 Fast

       SECTORS PER DRIVE ________________________485,601

       TPI (TRACKS PER INCH) ____________________1,960

       BPI (BITS PER INCH) ______________________38,000

       AVERAGE ACCESS (ms) ______________________12

       SINGLE TRACK SEEK (ms) ___________________<4

       MAX FULL SEEK (ms) _______________________32

       MTBF (power-on hours) Office _____________250,000

       POWER REQUIREMENTS: +12V START-UP (amps) _1.5

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________5.7

                           IDLE _________________3.0

                           STANDBY ______________1.0

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________0

Formatted at the factory with 2 alternate cylinders.  Total physical

cylinders equal 1691.

       Physical:

                        Height (inches/mm):     1.00/25.4

                        Width  (inches/mm):     4.02/102.1

                        Depth  (inches/mm):     5.77/146.6

                        Weight    (lbs/kg):     1.5/0.68

Note: If FAST SCSI transfer rates are used, then the active

termination options must be used.  If the transfer rates are 5.0

MBytes/sec and below, either method of termination can be used.

Although active and passive terminated devices can be installed on the

same bus, both ends of the cable should be terminated in the same

manner, either both active or both passive.

Note: If your application requires no terminators, remove the

terminators from the circuit board.  Merely removing the terminator

power source selection jumper does not disconnect the terminator

resistors from the circuit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (08/08/94)


ST-3285N

Rear View              ÚÄ 50 pin SCSI Interface I/O connector

                       ³

                       ³                    DC power

   (TOP)      ÕÍÍÍÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍÍÍ¸ /Ä5ÄGÄGÄ12\

          ÍÍÍÍµ::::::::::::::::::::::::1ÆÍµ 0 0 0 0 ÆÍ

   (BOTTOM)   ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄÄÄÄÄÄÄÄÄÙ

                 ÚÄÄÄÄÄ1 ÚÄÄÄÄÄ1 ÚÄÄÄÄÄ1

                 ÀÄÄÄÄÄÙ ÀÄÄÄÄÄÙ ÀÄÄÄÄÄÙ

                  Terminating Resistor Packs

ST-3285N

Left View                       o o o1

              (TOP)             o o o     ÕÍ¸

     Front....ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍØÍØÍØÍÍÍÍÍµ I/O connector

                                ³ ³ ³     ÔÍ¾

             SCSI Address ID 1 ÄÙ ³ ³

                          ID 2 ÄÄÄÙ ³

                          ID 4 ÄÄÄÄÄÙ

ST-3285N

Right View

                 o o4     o o o6         (TOP)

           ÕÍ¸  1o³o     1o³o o

    DC Power ÆÍÍÍÍØÍÍÍÍÍÍ  ³    ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

           ÔÍ¾    ³        ³

                  ³      ÄÄÁÄÄÄÄ

                  ³      Active/Passive Termination

                ÄÄÁÄÄ    ÄÄÂÄÄÄÄ

     Terminator Power  ÚÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

                ÄÄÂÄÄ  ³ Active: Pins 1 & 2 shorted     ³

                  ³    ³         only (+2.85V to        ³

                  ³    ³         110 ê) for FAST        ³

                  ³    ³         SCSI;                  ³

                  ³    ³Passive: Pins 2 & 4 shorted     ³

                  ³    ³         AND pins 5 & 6 shorted ³

                  ³    ³         (+5V and GND to        ³

                  ³    ³         220/330 ê) for         ³

                  ³    ³         standard SCSI.         ³

                  ³    ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

                  ³

    ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³Terminator Power: From SCSI Connector ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Pins 1 & 2     ³

    ³                  From Power Connector ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Pins 1 & 3     ³

    ³                  To SCSI Connector Only ÄÄÄÄÄÄÄÄÄÄÄÄÄ Pins 3 & 4     ³

    ³                  From Power Connector and ÄÄÄÄÄÄÄÄÄÄÄ Pins 1 & 2 AND ³

    ³                    to SCSI Bus --------------------------- 3 & 4     ³

    ³                 Terminating Resistors not Installed Ä Pins 2 & 4     ³

    ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

ST-3285N

Front View

                 ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ SCSI ID's (none for ID0)

                 ³                    not used if ID set on side jumpers

                 ³   ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Ext. Spindle Clock Synch

                 ³   ³                pin-5 is Clock Ground

                 ³   ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄ Remote LED

  (TOP)        ÚÄÁÄ¿ ³ ³     ÚÄÄÄÄÄÄ Reserved

               4 2 1 ³ ³ ÚÄÄÄÁÄÄÄ¿

               o o o o o-o o o o o

              1o o o o o+o o o o o  o o o o+

               ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ1o o o o-ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                    ³ ³ ³ ³

  (BOTTOM)                          ³ ³ ³ ÀÄÄ Remote LED

                                    ³ ³ ÀÄÄÄÄ Ext. Spindle Clock Synch

                                    ³ ³        pin-5 is Clock Ground

                                    ³ ÀÄÄÄÄÄÄ Remote Start Enable

                                    ÀÄÄÄÄÄÄÄÄ Parity Enable

                             ST-3285N

       UNFORMATTED CAPACITY _____________________

       FORMATTED CAPACITY (xx SECTORS) __________248.62

       AVERAGE SECTORS PER TRACK ________________57 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________8,455

       CYLINDERS ________________________________1,689 (user)

       HEADS ____________________________________3

       DISCS (3.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______15.0 to 24.4

       EXTERNAL TRANSFER RATE (mbyte/sec) _______4 Async

       EXTERNAL TRANSFER RATE (mbyte/sec) _______10 Sync

       SPINDLE SPEED (RPM) ______________________4,500

       AVERAGE LATENCY (mSEC) ___________________6.67

       BUFFER ___________________________________128 Kbyte SeaCache

        Read Look-Ahead Multisegmented cache

       INTERFACE ________________________________SCSI-2 Fast

       SECTORS PER DRIVE ________________________485,601

       TPI (TRACKS PER INCH) ____________________1,960

       BPI (BITS PER INCH) ______________________38,000

       AVERAGE ACCESS (ms) ______________________12

       SINGLE TRACK SEEK (ms) ___________________<4

       MAX FULL SEEK (ms) _______________________32

       MTBF (power-on hours) Office _____________250,000

       POWER REQUIREMENTS: +12V START-UP (amps) _1.5

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________5.7

                           IDLE _________________3.0

                           STANDBY ______________1.0

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________0

Formatted at the factory with 2 alternate cylinders.  Total physical

cylinders equal 1691.

       Physical:

                        Height (inches/mm):     1.00/25.4

                        Width  (inches/mm):     4.02/102.1

                        Depth  (inches/mm):     5.77/146.6

                        Weight    (lbs/kg):     1.5/0.68

Note: If FAST SCSI transfer rates are used, then the active

termination options must be used.  If the transfer rates are 5.0

MBytes/sec and below, either method of termination can be used.

Although active and passive terminated devices can be installed on the

same bus, both ends of the cable should be terminated in the same

manner, either both active or both passive.

Note: If your application requires no terminators, remove the

terminators from the circuit board.  Merely removing the terminator

power source selection jumper does not disconnect the terminator

resistors from the circuit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (08/08/94)


ST-3390N

Rear View              ÚÄ 50 pin SCSI Interface I/O connector

                       ³

                       ³                    DC power

   (TOP)      ÕÍÍÍÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍÍÍ¸ /Ä5ÄGÄGÄ12\

          ÍÍÍÍµ::::::::::::::::::::::::1ÆÍµ 0 0 0 0 ÆÍ

   (BOTTOM)   ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄÄÄÄÄÄÄÄÄÙ

                 ÚÄÄÄÄÄ1 ÚÄÄÄÄÄ1 ÚÄÄÄÄÄ1

                 ÀÄÄÄÄÄÙ ÀÄÄÄÄÄÙ ÀÄÄÄÄÄÙ

                  Terminating Resistor Packs

ST-3390N

Left View                       o o o1

              (TOP)             o o o     ÕÍ¸

     Front....ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍØÍØÍØÍÍÍÍÍµ I/O connector

                                ³ ³ ³     ÔÍ¾

             SCSI Address ID 1 ÄÙ ³ ³

                          ID 2 ÄÄÄÙ ³

                          ID 4 ÄÄÄÄÄÙ

ST-3390N

Right View

                 o o4     o o o6         (TOP)

           ÕÍ¸  1o³o     1o³o o

    DC Power ÆÍÍÍÍØÍÍÍÍÍÍ  ³    ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

           ÔÍ¾    ³        ³

                  ³      ÄÄÁÄÄÄÄ

                  ³      Active/Passive Termination

                ÄÄÁÄÄ    ÄÄÂÄÄÄÄ

     Terminator Power  ÚÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

                ÄÄÂÄÄ  ³ Active: Pins 1 & 2 shorted     ³

                  ³    ³         only (+2.85V to        ³

                  ³    ³         110 ê) for FAST        ³

                  ³    ³         SCSI;                  ³

                  ³    ³Passive: Pins 2 & 4 shorted     ³

                  ³    ³         AND pins 5 & 6 shorted ³

                  ³    ³         (+5V and GND to        ³

                  ³    ³         220/330 ê) for         ³

                  ³    ³         standard SCSI.         ³

                  ³    ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

                  ³

    ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³Terminator Power: From SCSI Connector ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Pins 1 & 2     ³

    ³                  From Power Connector ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Pins 1 & 3     ³

    ³                  To SCSI Connector Only ÄÄÄÄÄÄÄÄÄÄÄÄÄ Pins 3 & 4     ³

    ³                  From Power Connector and ÄÄÄÄÄÄÄÄÄÄÄ Pins 1 & 2 AND ³

    ³                    to SCSI Bus --------------------------- 3 & 4     ³

    ³                 Terminating Resistors not Installed Ä Pins 2 & 4     ³

    ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

ST-3390N

Front View

                 ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ SCSI ID's (none for ID0)

                 ³                    not used if ID set on side jumpers

                 ³   ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Ext. Spindle Clock Synch

                 ³   ³                pin-5 is Clock Ground

                 ³   ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄ Remote LED

  (TOP)        ÚÄÁÄ¿ ³ ³     ÚÄÄÄÄÄÄ Reserved

               4 2 1 ³ ³ ÚÄÄÄÁÄÄÄ¿

               o o o o o-o o o o o

              1o o o o o+o o o o o  o o o o+

               ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ1o o o o-ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                    ³ ³ ³ ³

  (BOTTOM)                          ³ ³ ³ ÀÄÄ Remote LED

                                    ³ ³ ÀÄÄÄÄ Ext. Spindle Clock Synch

                                    ³ ³        pin-5 is Clock Ground

                                    ³ ÀÄÄÄÄÄÄ Remote Start Enable

                                    ÀÄÄÄÄÄÄÄÄ Parity Enable

                             ST-3390N

       UNFORMATTED CAPACITY _____________________

       FORMATTED CAPACITY (xx SECTORS) __________344.3

       AVERAGE SECTORS PER TRACK ________________83 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________8,028

       CYLINDERS ________________________________2,676 (user)

       HEADS ____________________________________3

       DISCS (3.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______21.6 to 36.3

       EXTERNAL TRANSFER RATE (mbyte/sec) _______4 Async

       EXTERNAL TRANSFER RATE (mbyte/sec) _______10 Sync

       SPINDLE SPEED (RPM) ______________________4,500

       AVERAGE LATENCY (mSEC) ___________________6.67

       BUFFER ___________________________________256 Kbyte SeaCache

        Multisegmented, read look-ahead

       INTERFACE ________________________________SCSI-2 Fast

       BYTES PER TRACK __________________________42,888 avg.

       SECTORS PER DRIVE ________________________672,480

       TPI (TRACKS PER INCH) ____________________3,000

       BPI (BITS PER INCH) ______________________52,602

       AVERAGE ACCESS (ms) ______________________12

       SINGLE TRACK SEEK (ms) ___________________<4

       MAX FULL SEEK (ms) _______________________30

       MTBF (power-on hours) Office _____________250,000

       POWER REQUIREMENTS: +12V START-UP (amps) _1.9

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________5.75

                           IDLE _________________3.0

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________0

Formatted at the factory with 2 alternate cylinders.  Total physical

cylinders equal 2678.

       Physical:

                        Height (inches/mm):     1.00/25.4

                        Width  (inches/mm):     4.02/102.1

                        Depth  (inches/mm):     5.77/146.6

                        Weight    (lbs/kg):     1.5/0.68

Note: If FAST SCSI transfer rates are used, then the active

termination options must be used.  If the transfer rates are 5.0

MBytes/sec and below, either method of termination can be used.

Although active and passive terminated devices can be installed on the

same bus, both ends of the cable should be terminated in the same

manner, either both active or both passive.

Note: If your application requires no terminators, remove the

terminators from the circuit board.  Merely removing the terminator

power source selection jumper does not disconnect the terminator

resistors from the circuit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (08/08/94)


ST-34371N
ST-34371N Ultra-SCSI (Barracuda 4LP)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-34371N)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

         50 pin I/O Cable Connection

         ³

    J1ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ1¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     Íµ:::::::::::::::::::::::::ÆÍ³ 0 0 0 0 ³ÍÍ

      ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º SIDE VIEW º  (ST-34371N)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Enable T-Res (N model only)

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)

  ³         Reserved ÄÄÙ³³ÀÄÄ Motor Start

  ³   Parity Disable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍÍ          ³

    ³                                              ³

    ³  1 2     1 2      1 2                        ³

    ³ ÖÄ·       ÖÄ·           A Drive Supplies Bus ³

    ³ ºøºø     øºøº    ÖøÄø·  B Drive Supplies Own ³

    ³ Óø½ø     øÓø½    ÓøÄø½  C Bus Supplies Drive ³

    ³   A       B        C                         ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

    Note: ND drives do not have internal terminators or any other

          way of adding internal terminators to the drive; use

          external active termination if required.

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (ST-34371N)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                                  ÚÄÄ´Reserved. Shipped with cover installed.

                                  ³  ÀDo not remove. Do not install jumpers

                      TOP (HDA)  ÕØÍÍÍ¸     1

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::³::::::ÆÍÍ

                 *    BOTTOM     ÔÍÍÍÍ¾123456

                 ³               J6    ³³³³³³

            LED ÄÙ                     ³³³³³³

                            Remote LED Ù³³³³À ID 1

                           (pin-11 +5v) ³³³ÀÄ ID 2

                              Reserved ÄÁÙÀÄÄ ID 4

                            ST-34371N

       FORMATTED CAPACITY (GB) __________________4.35

       AVERAGE SECTORS PER TRACK ________________165 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________51,780

       CYLINDERS ________________________________5,178 user

       HEADS ______PHYSICAL______________________10

       DISCS (3.5 in) ___________________________5

       MEDIA TYPE _______________________________THIN FILM/MR

       RECORDING METHOD _________________________ZBR PRML (0,4,4)

       INTERNAL TRANSFER RATE (mbits/sec)________80 to 122

       EXTERNAL TRANSFER RATE (mbyte/sec) _______20 Sync

       SPINDLE SPEED (RPM) ______________________7,200

       AVERAGE LATENCY (mSEC) ___________________4.17

       BUFFER ___________________________________512 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________Ultra SCSI

                   ASA II, SCAM level 2

       BYTES PER TRACK __________________________102,500 average

       SECTORS PER DRIVE ________________________

       TPI (TRACKS PER INCH) ____________________5,555

       BPI (PEAK KBITS PER INCH) ________________123

       AVERAGE ACCESS (ms read/write)____________9.2/10.2

         Drive level with controller overhead

       SINGLE TRACK SEEK (ms read/write) ________1.9/2.2

       MAX FULL SEEK (ms) _______________________17.2/18.2

       MTBF (power-on hours) ____________________1,000,000

       SHOCK (G's):

                operating (Read/Write) __________2

                abnormal ________________________10

                nonoperating ____________________75

       ACOUSTICS (Bels typical, sound power) ____4.2

       POWER DISSIPATION (watts/BTUs) Active ____12.9/44

                                      Idle ______8.8/30

       POWER REQUIREMENTS: +12V START-UP (amps) _2.44

                           +12V TYPICAL (amps) __0.54 idle

                           +5V START-UP (amps) __0.78

                           +5V TYPICAL (amps) ___0.46 idle

                           IDLE (watts) _________10

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):      1.0/25.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.47/146

                        Weight    (lbs/kg):      1.5/0.68

Already low-level formatted at the factory with 80 spare sectors at

the end of each 8 cylinder region.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (12/11/96)


ST-34371W
ST-34371W/WC Ultra-SCSI Wide (Barracuda 4LP)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-34371W only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

        (TOP)                   Auxiliary

          ___________________  ÚÄÄ  Ä1¿/ÍÍÍÍÍÍÍÍÍ\

        Í( ×××××××××××××××××1)Í³::::::³³ 0 0 0 0 ÆÍ

          \ÄÄÄÄÄÄÄÄÄÄÄÄ³ÄÄÄÄ/  À  ÄÄ  ÙÀÄ5ÄGÄGÄ12Ù

       68 pin I/O CableÙ        ³³³³³³

       Connection Male          ³³³³³³

                                ³³³³³³

                                ³³³³³³

        Auxiliary option header ³³³³³³

           pin-11 +5v  ÄÄÄÄÄÄÄÄÄÙ³³³³³

           pin-10 GND  ÄÄÄÄÄÄÄÄÄÄÙ³³³³

           SCSI ID = 8 ÄÄÄÄÄÄÄÄÄÄÄÙ³³³

           SCSI ID = 4 ÄÄÄÄÄÄÄÄÄÄÄÄ´³³

            or pin-6 REFIND+ ÄÄÄÄÄÄÙ³³

           SCSI ID = 2 ÄÄÄÄÄÄÄÄÄÄÄÄÄÙ³

           SCSI ID = 1 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

           SCSI ID = 0 (none)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-34371WC only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                     80 pin I/O and DC Power Wall/bracket Connection

                     ³  Female

    J1          /ÄÄÄÄ³ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ\      TOP (HDA)

     ÍÍÍÍÍÍÍÍÍÍ/ ×××××××××××××××××××× \ÍÍÍÍÍÍÍÍÍÍ

              (\Ä1ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ40/)    BOTTOM

     Notes on 80 pin I/O connector:

       pins  1 -  4 = +12v        41 - 44 = 12v GND

            34 - 36 = +5v         74 - 76 = 5v GND

                 37 = SYNC             77 = LEDC

                 38 = MTRON            78 = DLYDST

                 39 = SCSIA0           79 = SCSIA1

                 40 = SCSIA2           80 = SCSIA3

  Mating NC connector: AMP US p/n: 2-557103-1 straight-in, Male 80-pin

                                   2-557101-1 right angle to PCB

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º SIDE VIEW º  (ST-34371W/WC)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Enable T-Res (not used on WC,WD models)

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)

  ³         Reserved ÄÄÙ³³ÀÄÄ Motor Start

  ³   Parity Disable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍ                       ³

    ³                                    A Drive Supplies Bus  ³

    ³  1 2     1 2      1 2      1 2     B Drive Supplies Own  ³

    ³ ÖÄ·       ÖÄ·             Ö Ä ·    C Bus Supplies Drive  ³

    ³ ºøºø     øºøº    ÖøÄø·    ÓøÄø½    D Differential only:  ³

    ³ Óø½ø     øÓø½    ÓøÄø½     ø ø       Drive Supplies Bus  ³

    ³   A       B        C        D                            ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

    (not used on WC model)

    Note: WD drives do not have internal terminators or any other

          way of adding internal terminators to the drive; use

          external active termination if required.

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (ST-34371W/WC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                                  ÚÄÄ´Reserved. Shipped with cover installed.

                                  ³  ÀDo not remove. Do not install jumpers

                      TOP (HDA)  ÕØÍÍÍ¸     1

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::³::::::ÆÍÍ

                 *    BOTTOM     ÔÍÍÍÍ¾123456

                 ³               J6    ³³³³³³

            LED ÄÙ                     ³³³³³³

                            Remote LED Ù³³³³À ID 1

                           (pin-11 +5v) ³³³ÀÄ ID 2

                              Reserved ÄÙ³ÀÄÄ ID 4

                                         ÀÄÄÄ ID 8

                            ST-34371W

       FORMATTED CAPACITY (GB) __________________4.35

       AVERAGE SECTORS PER TRACK ________________165 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________51,780

       CYLINDERS ________________________________5,178 user

       HEADS ______PHYSICAL______________________10

       DISCS (3.5 in) ___________________________5

       MEDIA TYPE _______________________________THIN FILM/MR

       RECORDING METHOD _________________________ZBR PRML (0,4,4)

       INTERNAL TRANSFER RATE (mbits/sec)________80 to 122

       EXTERNAL TRANSFER RATE (mbyte/sec) _______40 Sync

       SPINDLE SPEED (RPM) ______________________7,200

       AVERAGE LATENCY (mSEC) ___________________4.17

       BUFFER ___________________________________512 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________Ultra SCSI

                   ASA II, SCAM level 2

       BYTES PER TRACK __________________________102,500 average

       SECTORS PER DRIVE ________________________

       TPI (TRACKS PER INCH) ____________________5,555

       BPI (PEAK KBITS PER INCH) ________________123

       AVERAGE ACCESS (ms read/write)____________9.2/10.2

         Drive level with controller overhead

       SINGLE TRACK SEEK (ms read/write) ________1.9/2.2

       MAX FULL SEEK (ms) _______________________17.2/18.2

       MTBF (power-on hours) ____________________1,000,000

       SHOCK (G's):

                operating (Read/Write) __________2

                abnormal ________________________10

                nonoperating ____________________75

       ACOUSTICS (Bels typical, sound power) ____4.2

       POWER DISSIPATION (watts/BTUs) Active ____12.9/44

                                      Idle ______8.8/30

       POWER REQUIREMENTS: +12V START-UP (amps) _2.44

                           +12V TYPICAL (amps) __0.54 idle

                           +5V START-UP (amps) __0.78

                           +5V TYPICAL (amps) ___0.46 idle

                           IDLE (watts) _________10

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):      1.0/25.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.47/146

                        Weight    (lbs/kg):      1.5/0.68

Already low-level formatted at the factory with 80 spare sectors at

the end of each 8 cylinder region.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (12/11/96)


ST-34501N
ST-34501N Ultra-SCSI (Cheetah 4LP)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-34501N)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

         50 pin I/O Cable Connection

         ³

    J1ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ1¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     Íµ:::::::::::::::::::::::::ÆÍ³ 0 0 0 0 ³ÍÍ

      ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º SIDE VIEW º  (ST-34501N)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Enable T-Res (N model only)

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)

  ³         Reserved ÄÄÙ³³ÀÄÄ Motor Start

  ³   Parity Disable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍÍ          ³

    ³                                              ³

    ³  1 2     1 2      1 2                        ³

    ³ ÖÄ·       ÖÄ·           A Drive Supplies Bus ³

    ³ ºøºø     øºøº    ÖøÄø·  B Drive Supplies Own ³

    ³ Óø½ø     øÓø½    ÓøÄø½  C Bus Supplies Drive ³

    ³   A       B        C                         ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

    Note: ND drives do not have internal terminators or any other

          way of adding internal terminators to the drive; use

          external active termination if required.

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (ST-34501N)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                                  ÚÄÄ´Reserved. Shipped with cover installed.

                                  ³  ÀDo not remove. Do not install jumpers

                      TOP (HDA)  ÕØÍÍÍ¸     1

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::³::::::ÆÍÍ

                 *    BOTTOM     ÔÍÍÍÍ¾123456

                 ³               J6    ³³³³³³

            LED ÄÙ                     ³³³³³³

                            Remote LED Ù³³³³À ID 1

                           (pin-11 +5v) ³³³ÀÄ ID 2

                              Reserved ÄÁÙÀÄÄ ID 4

                            ST-34501N

       FORMATTED CAPACITY (GB) __________________4.55

       AVERAGE SECTORS PER TRACK ________________172 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________52,656

       CYLINDERS ________________________________6,582 user

       HEADS ______PHYSICAL______________________8

       DISCS (3.5 in) ___________________________4

       MEDIA TYPE _______________________________THIN FILM/MR

       RECORDING METHOD _________________________ZBR PRML (0,4,4)

       INTERNAL TRANSFER RATE (mbits/sec)________122 to 177

       INTERNAL FORMATTED TRANSFER RATE (MB/sec)_11.3 to 16.8

       EXTERNAL TRANSFER RATE (mbyte/sec) _______20 Sync

       SPINDLE SPEED (RPM) ______________________10,033

       AVERAGE LATENCY (mSEC) ___________________2.99

       BUFFER (/optional) _______________________512/2048 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________Ultra SCSI

                   ASA II, SCAM level 2

       BYTES PER TRACK __________________________ average

       SECTORS PER DRIVE ________________________8,890,080

       TPI (TRACKS PER INCH) ____________________

       BPI (PEAK KBITS PER INCH) ________________

       AVERAGE ACCESS (ms read/write)____________7.8/8.5

         Drive level with controller overhead

       SINGLE TRACK SEEK (ms read/write) ________0.78/1.04

       MAX FULL SEEK (ms) _______________________18

       MTBF (power-on hours) ____________________1,000,000

       SHOCK (G's):

                operating (Read/Write) __________

                abnormal ________________________

                nonoperating ____________________

       ACOUSTICS (Bels typical, sound power) ____

       POWER DISSIPATION (watts/BTUs) Active ____

                                      Idle ______

       POWER REQUIREMENTS: +12V START-UP (amps) _2.0

                           +12V TYPICAL (amps) __0.82 idle

                           +5V START-UP (amps) __

                           +5V TYPICAL (amps) ___0.74 idle

                           IDLE (watts) _________13.5

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):      1.0/25.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.47/146

                        Weight    (lbs/kg):      1.5/0.68

Already low-level formatted at the factory with 80 spare sectors at

the end of each 8 cylinder region.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (12/11/96)


ST-34501W
ST-34501W/WC Ultra-SCSI Wide (Cheetah 4LP)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-34501W only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

        (TOP)                   Auxiliary

          ___________________  ÚÄÄ  Ä1¿/ÍÍÍÍÍÍÍÍÍ\

        Í( ×××××××××××××××××1)Í³::::::³³ 0 0 0 0 ÆÍ

          \ÄÄÄÄÄÄÄÄÄÄÄÄ³ÄÄÄÄ/  À  ÄÄ  ÙÀÄ5ÄGÄGÄ12Ù

       68 pin I/O CableÙ        ³³³³³³

       Connection Male          ³³³³³³

                                ³³³³³³

                                ³³³³³³

        Auxiliary option header ³³³³³³

           pin-11 +5v  ÄÄÄÄÄÄÄÄÄÙ³³³³³

           pin-10 GND  ÄÄÄÄÄÄÄÄÄÄÙ³³³³

           SCSI ID = 8 ÄÄÄÄÄÄÄÄÄÄÄÙ³³³

           SCSI ID = 4 ÄÄÄÄÄÄÄÄÄÄÄÄ´³³

            or pin-6 REFIND+ ÄÄÄÄÄÄÙ³³

           SCSI ID = 2 ÄÄÄÄÄÄÄÄÄÄÄÄÄÙ³

           SCSI ID = 1 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

           SCSI ID = 0 (none)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-34501WC only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                     80 pin I/O and DC Power Wall/bracket Connection

                     ³  Female

    J1          /ÄÄÄÄ³ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ\      TOP (HDA)

     ÍÍÍÍÍÍÍÍÍÍ/ ×××××××××××××××××××× \ÍÍÍÍÍÍÍÍÍÍ

              (\Ä1ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ40/)    BOTTOM

     Notes on 80 pin I/O connector:

       pins  1 -  4 = +12v        41 - 44 = 12v GND

            34 - 36 = +5v         74 - 76 = 5v GND

                 37 = SYNC             77 = LEDC

                 38 = MTRON            78 = DLYDST

                 39 = SCSIA0           79 = SCSIA1

                 40 = SCSIA2           80 = SCSIA3

  Mating NC connector: AMP US p/n: 2-557103-1 straight-in, Male 80-pin

                                   2-557101-1 right angle to PCB

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º SIDE VIEW º  (ST-34501W/WC)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Enable T-Res (not used on WC,WD models)

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)

  ³         Reserved ÄÄÙ³³ÀÄÄ Motor Start

  ³   Parity Disable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍ                       ³

    ³                                    A Drive Supplies Bus  ³

    ³  1 2     1 2      1 2      1 2     B Drive Supplies Own  ³

    ³ ÖÄ·       ÖÄ·             Ö Ä ·    C Bus Supplies Drive  ³

    ³ ºøºø     øºøº    ÖøÄø·    ÓøÄø½    D Differential only:  ³

    ³ Óø½ø     øÓø½    ÓøÄø½     ø ø       Drive Supplies Bus  ³

    ³   A       B        C        D                            ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

    (not used on WC model)

    Note: WD drives do not have internal terminators or any other

          way of adding internal terminators to the drive; use

          external active termination if required.

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (ST-34501W/WC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                                  ÚÄÄ´Reserved. Shipped with cover installed.

                                  ³  ÀDo not remove. Do not install jumpers

                      TOP (HDA)  ÕØÍÍÍ¸     1

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::³::::::ÆÍÍ

                 *    BOTTOM     ÔÍÍÍÍ¾123456

                 ³               J6    ³³³³³³

            LED ÄÙ                     ³³³³³³

                            Remote LED Ù³³³³À ID 1

                           (pin-11 +5v) ³³³ÀÄ ID 2

                              Reserved ÄÙ³ÀÄÄ ID 4

                                         ÀÄÄÄ ID 8

                            ST-34501W

       FORMATTED CAPACITY (GB) __________________4.55

       AVERAGE SECTORS PER TRACK ________________ rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________52,656

       CYLINDERS ________________________________6,582 user

       HEADS ______PHYSICAL______________________8

       DISCS (3.5 in) ___________________________4

       MEDIA TYPE _______________________________THIN FILM/MR

       RECORDING METHOD _________________________ZBR PRML (0,4,4)

       INTERNAL TRANSFER RATE (mbits/sec)________122 to 177

       INTERNAL FORMATTED TRANSFER RATE (MB/sec)_11.3 to 16.8

       EXTERNAL TRANSFER RATE (mbyte/sec) _______40 Sync

       SPINDLE SPEED (RPM) ______________________10,033

       AVERAGE LATENCY (mSEC) ___________________2.99

       BUFFER (/optional) _______________________512/2048 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________Ultra SCSI

                   ASA II, SCAM level 2

       BYTES PER TRACK __________________________ average

       SECTORS PER DRIVE ________________________8,890,080

       TPI (TRACKS PER INCH) ____________________

       BPI (PEAK KBITS PER INCH) ________________

       AVERAGE ACCESS (ms read/write)____________7.8/8.5

         Drive level with controller overhead

       SINGLE TRACK SEEK (ms read/write) ________0.78/1.04

       MAX FULL SEEK (ms) _______________________18

       MTBF (power-on hours) ____________________1,000,000

       SHOCK (G's):

                operating (Read/Write) __________

                abnormal ________________________

                nonoperating ____________________

       ACOUSTICS (Bels typical, sound power) ____

       POWER DISSIPATION (watts/BTUs) Active ____

                                      Idle ______

       POWER REQUIREMENTS: +12V START-UP (amps) _2.0

                           +12V TYPICAL (amps) __0.82 idle

                           +5V START-UP (amps) __

                           +5V TYPICAL (amps) ___0.74 idle

                           IDLE (watts) _________13.5

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):      1.0/25.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.47/146

                        Weight    (lbs/kg):      1.5/0.68

Already low-level formatted at the factory with 80 spare sectors at

the end of each 8 cylinder region.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (12/11/96)


ST-34571N
ST-34571N Ultra-SCSI (Barracuda 4LP)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-34571N)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

         50 pin I/O Cable Connection

         ³

    J1ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ1¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     Íµ:::::::::::::::::::::::::ÆÍ³ 0 0 0 0 ³ÍÍ

      ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º SIDE VIEW º  (ST-34571N)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Enable T-Res (N model only)

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)

  ³         Reserved ÄÄÙ³³ÀÄÄ Motor Start

  ³   Parity Disable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍÍ          ³

    ³                                              ³

    ³  1 2     1 2      1 2                        ³

    ³ ÖÄ·       ÖÄ·           A Drive Supplies Bus ³

    ³ ºøºø     øºøº    ÖøÄø·  B Drive Supplies Own ³

    ³ Óø½ø     øÓø½    ÓøÄø½  C Bus Supplies Drive ³

    ³   A       B        C                         ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

    Note: ND drives do not have internal terminators or any other

          way of adding internal terminators to the drive; use

          external active termination if required.

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (ST-34571N)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                                  ÚÄÄ´Reserved. Shipped with cover installed.

                                  ³  ÀDo not remove. Do not install jumpers

                      TOP (HDA)  ÕØÍÍÍ¸     1

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::³::::::ÆÍÍ

                 *    BOTTOM     ÔÍÍÍÍ¾123456

                 ³               J6    ³³³³³³

            LED ÄÙ                     ³³³³³³

                            Remote LED Ù³³³³À ID 1

                           (pin-11 +5v) ³³³ÀÄ ID 2

                              Reserved ÄÁÙÀÄÄ ID 4

                            ST-34571N

       FORMATTED CAPACITY (GB) __________________4.55

       AVERAGE SECTORS PER TRACK ________________172 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________51,780

       CYLINDERS ________________________________5,178 user

       HEADS ______PHYSICAL______________________10

       DISCS (3.5 in) ___________________________5

       MEDIA TYPE _______________________________THIN FILM/MR

       RECORDING METHOD _________________________ZBR PRML (0,4,4)

       INTERNAL TRANSFER RATE (mbits/sec)________83 to 126

       EXTERNAL TRANSFER RATE (mbyte/sec) _______20 Sync

       SPINDLE SPEED (RPM) ______________________7,200

       AVERAGE LATENCY (mSEC) ___________________4.17

       BUFFER ___________________________________512 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________Ultra SCSI

                   ASA II, SCAM level 2

       BYTES PER TRACK __________________________106,980 average

       SECTORS PER DRIVE ________________________

       TPI (TRACKS PER INCH) ____________________5,555

       BPI (PEAK KBITS PER INCH) ________________128

       AVERAGE ACCESS (ms read/write)____________9.2/10.2

         Drive level with controller overhead

       SINGLE TRACK SEEK (ms read/write) ________1.9/2.2

       MAX FULL SEEK (ms) _______________________17.2/18.2

       MTBF (power-on hours) ____________________1,000,000

       SHOCK (G's):

                operating (Read/Write) __________2

                abnormal ________________________10

                nonoperating ____________________75

       ACOUSTICS (Bels typical, sound power) ____4.2

       POWER DISSIPATION (watts/BTUs) Active ____12.9/44

                                      Idle ______8.8/30

       POWER REQUIREMENTS: +12V START-UP (amps) _2.44

                           +12V TYPICAL (amps) __0.54 idle

                           +5V START-UP (amps) __0.78

                           +5V TYPICAL (amps) ___0.46 idle

                           IDLE (watts) _________10

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):      1.0/25.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.47/146

                        Weight    (lbs/kg):      1.5/0.68

Already low-level formatted at the factory with 80 spare sectors at

the end of each 8 cylinder region.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (12/11/96)


ST-34571W
ST-34571W/WC Ultra-SCSI Wide (Barracuda 4LP)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-34571W only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

        (TOP)                   Auxiliary

          ___________________  ÚÄÄ  Ä1¿/ÍÍÍÍÍÍÍÍÍ\

        Í( ×××××××××××××××××1)Í³::::::³³ 0 0 0 0 ÆÍ

          \ÄÄÄÄÄÄÄÄÄÄÄÄ³ÄÄÄÄ/  À  ÄÄ  ÙÀÄ5ÄGÄGÄ12Ù

       68 pin I/O CableÙ        ³³³³³³

       Connection Male          ³³³³³³

                                ³³³³³³

                                ³³³³³³

        Auxiliary option header ³³³³³³

           pin-11 +5v  ÄÄÄÄÄÄÄÄÄÙ³³³³³

           pin-10 GND  ÄÄÄÄÄÄÄÄÄÄÙ³³³³

           SCSI ID = 8 ÄÄÄÄÄÄÄÄÄÄÄÙ³³³

           SCSI ID = 4 ÄÄÄÄÄÄÄÄÄÄÄÄ´³³

            or pin-6 REFIND+ ÄÄÄÄÄÄÙ³³

           SCSI ID = 2 ÄÄÄÄÄÄÄÄÄÄÄÄÄÙ³

           SCSI ID = 1 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

           SCSI ID = 0 (none)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-34571WC only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                     80 pin I/O and DC Power Wall/bracket Connection

                     ³  Female

    J1          /ÄÄÄÄ³ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ\      TOP (HDA)

     ÍÍÍÍÍÍÍÍÍÍ/ ×××××××××××××××××××× \ÍÍÍÍÍÍÍÍÍÍ

              (\Ä1ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ40/)    BOTTOM

     Notes on 80 pin I/O connector:

       pins  1 -  4 = +12v        41 - 44 = 12v GND

            34 - 36 = +5v         74 - 76 = 5v GND

                 37 = SYNC             77 = LEDC

                 38 = MTRON            78 = DLYDST

                 39 = SCSIA0           79 = SCSIA1

                 40 = SCSIA2           80 = SCSIA3

  Mating NC connector: AMP US p/n: 2-557103-1 straight-in, Male 80-pin

                                   2-557101-1 right angle to PCB

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º SIDE VIEW º  (ST-34571W/WC)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Enable T-Res (not used on WC,WD models)

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)

  ³         Reserved ÄÄÙ³³ÀÄÄ Motor Start

  ³   Parity Disable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍ                       ³

    ³                                    A Drive Supplies Bus  ³

    ³  1 2     1 2      1 2      1 2     B Drive Supplies Own  ³

    ³ ÖÄ·       ÖÄ·             Ö Ä ·    C Bus Supplies Drive  ³

    ³ ºøºø     øºøº    ÖøÄø·    ÓøÄø½    D Differential only:  ³

    ³ Óø½ø     øÓø½    ÓøÄø½     ø ø       Drive Supplies Bus  ³

    ³   A       B        C        D                            ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

    (not used on WC model)

    Note: WD drives do not have internal terminators or any other

          way of adding internal terminators to the drive; use

          external active termination if required.

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (ST-34571W/WC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                                  ÚÄÄ´Reserved. Shipped with cover installed.

                                  ³  ÀDo not remove. Do not install jumpers

                      TOP (HDA)  ÕØÍÍÍ¸     1

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::³::::::ÆÍÍ

                 *    BOTTOM     ÔÍÍÍÍ¾123456

                 ³               J6    ³³³³³³

            LED ÄÙ                     ³³³³³³

                            Remote LED Ù³³³³À ID 1

                           (pin-11 +5v) ³³³ÀÄ ID 2

                              Reserved ÄÙ³ÀÄÄ ID 4

                                         ÀÄÄÄ ID 8

                            ST-34571W

       FORMATTED CAPACITY (GB) __________________4.55

       AVERAGE SECTORS PER TRACK ________________172 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________51,780

       CYLINDERS ________________________________5,178 user

       HEADS ______PHYSICAL______________________10

       DISCS (3.5 in) ___________________________5

       MEDIA TYPE _______________________________THIN FILM/MR

       RECORDING METHOD _________________________ZBR PRML (0,4,4)

       INTERNAL TRANSFER RATE (mbits/sec)________83 to 126

       EXTERNAL TRANSFER RATE (mbyte/sec) _______40 Sync

       SPINDLE SPEED (RPM) ______________________7,200

       AVERAGE LATENCY (mSEC) ___________________4.17

       BUFFER ___________________________________512 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________Ultra SCSI

                   ASA II, SCAM level 2

       BYTES PER TRACK __________________________106,980 average

       SECTORS PER DRIVE ________________________

       TPI (TRACKS PER INCH) ____________________5,555

       BPI (PEAK KBITS PER INCH) ________________128

       AVERAGE ACCESS (ms read/write)____________9.2/10.2

         Drive level with controller overhead

       SINGLE TRACK SEEK (ms read/write) ________1.9/2.2

       MAX FULL SEEK (ms) _______________________17.2/18.2

       MTBF (power-on hours) ____________________1,000,000

       SHOCK (G's):

                operating (Read/Write) __________2

                abnormal ________________________10

                nonoperating ____________________75

       ACOUSTICS (Bels typical, sound power) ____4.2

       POWER DISSIPATION (watts/BTUs) Active ____12.9/44

                                      Idle ______8.8/30

       POWER REQUIREMENTS: +12V START-UP (amps) _2.44

                           +12V TYPICAL (amps) __0.54 idle

                           +5V START-UP (amps) __0.78

                           +5V TYPICAL (amps) ___0.46 idle

                           IDLE (watts) _________10

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):      1.0/25.4

                        Width  (inches/mm):     4.00/101.6

                        Depth  (inches/mm):     5.47/146

                        Weight    (lbs/kg):      1.5/0.68

Already low-level formatted at the factory with 80 spare sectors at

the end of each 8 cylinder region.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (12/11/96)


ST-3500N
ST-3500N SCSI-2 Fast

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

         50 pin I/O Cable Connection

         ³

    J1ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ1¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     Íµ:::::::::::::::::::::::::ÆÍ³ 0 0 0 0 ³ÍÍ

      ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

       1ÄÄÄÄÄÄ¿ 1ÄÄÄÄÄÄ¿ 1ÄÄÄÄÄÄ¿

       ÀÄÄÄÄÄÄÙ ÀÄÄÄÂÄÄÙ ÀÄÄÄÄÄÄÙ

        ÀTerminating ResistorsÙ

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º RIGHT SIDE VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  87654321                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Reserved

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (16 secs * ID)

  ³      Factory Use ÄÄÙ³³ÀÄÄ Motor Start

  ³    Parity Enable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³  8 7     8 7      8 7                        ³

    ³ ÖÄ·       ÖÄ·           A Drive Supplies Bus ³

    ³ ºøºø     øºøº    ÖøÄø·  B Drive Supplies Own ³

    ³ Óø½ø     øÓø½    Óø ø½  C Bus Supplies Drive ³

    ³   A       B        C                         ³

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍÍ          ³

    ³                                              ³

    ÀÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º LEFT SIDE VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼             If these ID jumpers are used,

                                 then ID jumpers shown in front

                                 view ARE NOT USED.

  FRONT                TOP (HDA)                 J5 ÕÍÍ1¸ ÕÍ¸BACK

   OF   ÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ:::ÆÍµJ1 OF

  DRIVE                BOTTOM                       ÔÍÍÍ¾ ÔÍ¾DRIVE

                                                     ³³³

                   Note:  On early drives  ³   ID 1 ÄÙ³ÀÄ ID 4

                   with PCB# 75782480 these³        ID 2

                   ID jumpers are reversed.ÃÄÄ ID 4       ID 1

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                      TOP (HDA)   J6  ÕÍÍÍÍÍ1¸

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::::ÆÍ

                 *    BOTTOM          ÔÍÍÍÍÍÍ¾

                 ³                     123456

            LED ÄÙ                     ³³³³³³

                                  ID 4 Ù³³³³À Reserved

                                  ID 2 ÄÙ³³ÀÄ Remote LED (pin-3 +5v)

                                  ID 1 ÄÄÙÀÄÄ Spindle Synchronization

                                               (pin-6 REF SIG+)

      If these ID jumper are used, then

         ID jumpers shown in left side

         view ARE NOT USED.

                            ST-3500N

       UNFORMATTED CAPACITY (MB) ________________502

       FORMATTED CAPACITY (xx SECTORS) (MB) _____426

       AVERAGE SECTORS PER TRACK ________________76

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________10,829

       CYLINDERS __PHYSICAL______________________1,547 (user)

       HEADS ______PHYSICAL______________________7

       DISCS (3.5 in) ___________________________4

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec)________21.7 to 31.9

       EXTERNAL TRANSFER RATE (mbyte/sec) _______4 Async

       EXTERNAL TRANSFER RATE (mbyte/sec) _______10 Sync

       SPINDLE SPEED (RPM) ______________________4,535

       AVERAGE LATENCY (mSEC) ___________________6.61

       BUFFER ___________________________________240 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 FAST

       SECTORS PER DRIVE ________________________

       TPI (TRACKS PER INCH) ____________________2150

       AVERAGE ACCESS (ms) (read/write)__________9.9/11.4

       SINGLE TRACK SEEK (ms) ___________________2

       MAX FULL SEEK (ms) _______________________26

       MTBF (power-on hours) ____________________200,000

       POWER REQUIREMENTS: +12V START-UP (amps) _1.5

                           +12V TYPICAL (amps) __0.4

                           +5V START-UP (amps) __

                           +5V TYPICAL (amps) ___0.2

                           TYPICAL (watts) ______5

                           MAXIMUM (watts) ______

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

Already low-level formatted at the factory with one spare sector

per track and two spare cylinders/unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (08/08/94)


ST-3550N

Rear View              ÚÄ 50 pin SCSI Interface I/O connector

                       ³

                       ³                    DC power

   (TOP)      ÕÍÍÍÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍÍÍ¸ /Ä5ÄGÄGÄ12\

          ÍÍÍÍµ::::::::::::::::::::::::1ÆÍµ 0 0 0 0 ÆÍ

   (BOTTOM)   ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄÄÄÄÄÄÄÄÄÙ

                 ÚÄÄÄÄÄ1 ÚÄÄÄÄÄ1 ÚÄÄÄÄÄ1

                 ÀÄÄÄÄÄÙ ÀÄÄÄÄÄÙ ÀÄÄÄÄÄÙ

                  Terminating Resistor Packs

ST-3550N

Left View                       o o o1

              (TOP)             o o o     ÕÍ¸

     Front....ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍØÍØÍØÍÍÍÍÍµ I/O connector

                                ³ ³ ³     ÔÍ¾

             SCSI Address ID 1 ÄÙ ³ ³

                          ID 2 ÄÄÄÙ ³

                          ID 4 ÄÄÄÄÄÙ

ST-3550N

Right View

                 o o4     o o o6         (TOP)

           ÕÍ¸  1o³o     1o³o o

    DC Power ÆÍÍÍÍØÍÍÍÍÍÍ  ³    ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

           ÔÍ¾    ³        ³

                  ³      ÄÄÁÄÄÄÄ

                  ³      Active/Passive Termination

                ÄÄÁÄÄ    ÄÄÂÄÄÄÄ

     Terminator Power  ÚÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

                ÄÄÂÄÄ  ³ Active: Pins 1 & 2 shorted     ³

                  ³    ³         only (+2.85V to        ³

                  ³    ³         110 ê) for FAST        ³

                  ³    ³         SCSI;                  ³

                  ³    ³Passive: Pins 2 & 4 shorted     ³

                  ³    ³         AND pins 5 & 6 shorted ³

                  ³    ³         (+5V and GND to        ³

                  ³    ³         220/330 ê) for         ³

                  ³    ³         standard SCSI.         ³

                  ³    ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

                  ³

    ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³Terminator Power: From SCSI Connector ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Pins 1 & 2     ³

    ³                  From Power Connector ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Pins 1 & 3     ³

    ³                  To SCSI Connector Only ÄÄÄÄÄÄÄÄÄÄÄÄÄ Pins 3 & 4     ³

    ³                  From Power Connector and ÄÄÄÄÄÄÄÄÄÄÄ Pins 1 & 2 AND ³

    ³                    to SCSI Bus --------------------------- 3 & 4     ³

    ³                 Terminating Resistors not Installed Ä Pins 2 & 4     ³

    ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

ST-3550N

Front View

                 ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ SCSI ID's (none for ID0)

                 ³                    not used if ID set on side jumpers

                 ³   ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Ext. Spindle Clock Synch

                 ³   ³                pin-5 is Clock Ground

                 ³   ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄ Remote LED

  (TOP)        ÚÄÁÄ¿ ³ ³     ÚÄÄÄÄÄÄ Reserved

               4 2 1 ³ ³ ÚÄÄÄÁÄÄÄ¿

               o o o o o-o o o o o

              1o o o o o+o o o o o  o o o o+

               ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ1o o o o-ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                    ³ ³ ³ ³

  (BOTTOM)                          ³ ³ ³ ÀÄÄ Remote LED

                                    ³ ³ ÀÄÄÄÄ Ext. Spindle Clock Synch

                                    ³ ³        pin-5 is Clock Ground

                                    ³ ÀÄÄÄÄÄÄ Remote Start Enable

                                    ÀÄÄÄÄÄÄÄÄ Parity Enable

                             ST-3550N

       UNFORMATTED CAPACITY _____________________

       FORMATTED CAPACITY (xx SECTORS) __________456.5

       AVERAGE SECTORS PER TRACK ________________83 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________10,630

       CYLINDERS ________________________________2,126 (user)

       HEADS ____________________________________5

       DISCS (3.5 in) ___________________________3

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______21.6 to 36.3

       EXTERNAL TRANSFER RATE (mbyte/sec) _______4 Async

       EXTERNAL TRANSFER RATE (mbyte/sec) _______10 Sync

       SPINDLE SPEED (RPM) ______________________4,500

       AVERAGE LATENCY (mSEC) ___________________6.67

       BUFFER ___________________________________256 Kbyte SeaCache

        Multisegmented, read look-ahead

       INTERFACE ________________________________SCSI-2 Fast

       BYTES PER TRACK __________________________42,943 avg.

       SECTORS PER DRIVE ________________________891,574

       TPI (TRACKS PER INCH) ____________________2,400

       BPI (BITS PER INCH) ______________________52,602

       AVERAGE ACCESS (ms) ______________________12

       SINGLE TRACK SEEK (ms) ___________________<4

       MAX FULL SEEK (ms) _______________________32

       MTBF (power-on hours) Office _____________250,000

       POWER REQUIREMENTS: +12V START-UP (amps) _1.9

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________5.75

                           IDLE _________________3.0

                           STANDBY ______________1.0

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________0

Formatted at the factory with 2 alternate cylinders.  Total physical

cylinders equal 2128.

       Physical:

                        Height (inches/mm):     1.00/25.4

                        Width  (inches/mm):     4.02/102.1

                        Depth  (inches/mm):     5.77/146.6

                        Weight    (lbs/kg):     1.5/0.68

Note: If FAST SCSI transfer rates are used, then the active

termination options must be used.  If the transfer rates are 5.0

MBytes/sec and below, either method of termination can be used.

Although active and passive terminated devices can be installed on the

same bus, both ends of the cable should be terminated in the same

manner, either both active or both passive.

Note: If your application requires no terminators, remove the

terminators from the circuit board.  Merely removing the terminator

power source selection jumper does not disconnect the terminator

resistors from the circuit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (08/08/94)


ST-3600N
ST-3600N SCSI-2 Fast

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

         50 pin I/O Cable Connection

         ³

    J1ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ1¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     Íµ:::::::::::::::::::::::::ÆÍ³ 0 0 0 0 ³ÍÍ

      ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

       1ÄÄÄÄÄÄ¿ 1ÄÄÄÄÄÄ¿ 1ÄÄÄÄÄÄ¿

       ÀÄÄÄÄÄÄÙ ÀÄÄÄÂÄÄÙ ÀÄÄÄÄÄÄÙ

        ÀTerminating ResistorsÙ

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º RIGHT SIDE VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Reserved

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (16 secs * ID)

  ³      Factory Use ÄÄÙ³³ÀÄÄ Motor Start

  ³    Parity Enable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍÍ          ³

    ³                                              ³

    ³  1 2     1 2      1 2                        ³

    ³ ÖÄ·       ÖÄ·           A Drive Supplies Bus ³

    ³ ºøºø     øºøº    ÖøÄø·  B Drive Supplies Own ³

    ³ Óø½ø     øÓø½    Óø ø½  C Bus Supplies Drive ³

    ³   A       B        C                         ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º LEFT SIDE VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼             If these ID jumpers are used,

                                 then ID jumpers shown in front

                                 view ARE NOT USED.

  FRONT                TOP (HDA)                 J5 ÕÍÍ1¸ ÕÍ¸BACK

   OF   ÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ:::ÆÍµJ1 OF

  DRIVE                BOTTOM                       ÔÍÍÍ¾ ÔÍ¾DRIVE

                                                     ³³³

                   Note:  On early drives  ³   ID 1 ÄÙ³ÀÄ ID 4

                   with PCB# 75782480 these³        ID 2

                   ID jumpers are reversed.ÃÄÄ ID 4       ID 1

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                      TOP (HDA)   J6  ÕÍÍÍÍÍ1¸

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::::ÆÍ

                 *    BOTTOM          ÔÍÍÍÍÍÍ¾

                 ³                     123456

            LED ÄÙ                     ³³³³³³

                                  ID 4 Ù³³³³À Reserved

                                  ID 2 ÄÙ³³ÀÄ Remote LED (pin-3 +5v)

                                  ID 1 ÄÄÙÀÄÄ Spindle Synchronization

                                               (pin-6 REF SIG+)

      If these ID jumper are used, then

         ID jumpers shown in left side

         view ARE NOT USED.

                            ST-3600N

       UNFORMATTED CAPACITY (MB) ________________617

       FORMATTED CAPACITY (xx SECTORS) (MB) _____525

       AVERAGE SECTORS PER TRACK ________________79

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________13,104

       CYLINDERS __PHYSICAL______________________1,872 (user)

       HEADS ______PHYSICAL______________________7

       DISCS (3.5 in) ___________________________4

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec)________18.5 to 34.2

       EXTERNAL TRANSFER RATE (mbyte/sec) _______4 Async

       EXTERNAL TRANSFER RATE (mbyte/sec) _______10 Sync

       SPINDLE SPEED (RPM) ______________________4,467

       AVERAGE LATENCY (mSEC) ___________________6.71

       BUFFER ___________________________________240 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 FAST

       SECTORS PER DRIVE ________________________1,025,919

       TPI (TRACKS PER INCH) ____________________2150

       AVERAGE ACCESS (ms) (read/write)__________10.5/11.2

         Drive level without controller overhead

       SINGLE TRACK SEEK (ms) ___________________2

       MAX FULL SEEK (ms) _______________________24

       MTBF (power-on hours) ____________________200,000

       POWER REQUIREMENTS: +12V START-UP (amps) _1.5

                           +12V TYPICAL (amps) __0.4

                           +5V START-UP (amps) __

                           +5V TYPICAL (amps) ___0.2

                           TYPICAL (watts) ______5

                           MAXIMUM (watts) ______

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

Already low-level formatted at the factory with one spare sector

per track and two spare cylinders/unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (08/08/94)


ST-3610N
ST-3610N SCSI-2 Fast

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

         50 pin I/O Cable Connection

         ³

    J1ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ1¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     Íµ:::::::::::::::::::::::::ÆÍ³ 0 0 0 0 ³ÍÍ

      ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

       1ÄÄÄÄÄÄ¿ 1ÄÄÄÄÄÄ¿ 1ÄÄÄÄÄÄ¿

       ÀÄÄÄÄÄÄÙ ÀÄÄÄÂÄÄÙ ÀÄÄÄÄÄÄÙ

        ÀTerminating ResistorsÙ

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º RIGHT SIDE VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Reserved

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)

  ³      Factory Use ÄÄÙ³³ÀÄÄ Motor Start

  ³    Parity Enable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍÍ          ³

    ³                                              ³

    ³  1 2     1 2      1 2                        ³

    ³ ÖÄ·       ÖÄ·           A Drive Supplies Bus ³

    ³ ºøºø     øºøº    ÖøÄø·  B Drive Supplies Own ³

    ³ Óø½ø     øÓø½    Óø ø½  C Bus Supplies Drive ³

    ³   A       B        C                         ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º LEFT SIDE VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼             If these ID jumpers are used,

                                 then ID jumpers shown in front

                                 view ARE NOT USED.

  FRONT                TOP (HDA)                 J5 ÕÍÍ1¸ ÕÍ¸BACK

   OF   ÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ:::ÆÍµJ1 OF

  DRIVE                BOTTOM                       ÔÍÍÍ¾ ÔÍ¾DRIVE

                                                     ³³³

                   Note:  On early drives  ³   ID 1 ÄÙ³ÀÄ ID 4

                   with PCB# 75782480 or   ³        ID 2

                   #75782495 ID jumpers areÃÄÄ ID 4       ID 1

                   reversed.               ³

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                      TOP (HDA)   J6  ÕÍÍÍÍÍ1¸

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::::ÆÍ

                 *    BOTTOM          ÔÍÍÍÍÍÍ¾

                 ³                     123456

            LED ÄÙ                     ³³³³³³

                                  ID 4 Ù³³³³À Reserved

                                  ID 2 ÄÙ³³ÀÄ Remote LED (pin-3 +5v)

                                  ID 1 ÄÄÙÀÄÄ Spindle Synchronization

                                               (pin-6 REF SIG+)

      If these ID jumper are used, then

         ID jumpers shown in left side

         view ARE NOT USED.

                            ST-3610N

       UNFORMATTED CAPACITY (MB) ________________635

       FORMATTED CAPACITY (xx SECTORS) (MB) _____535

       AVERAGE SECTORS PER TRACK ________________79 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________13,104

       CYLINDERS __PHYSICAL______________________1,872 (user)

       HEADS ______PHYSICAL______________________7

       DISCS (3.5 in) ___________________________4

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec)________25 to 41

       EXTERNAL TRANSFER RATE (mbyte/sec) _______4 Async

       EXTERNAL TRANSFER RATE (mbyte/sec) _______10 Sync

       SPINDLE SPEED (RPM) ______________________5,411

       AVERAGE LATENCY (mSEC) ___________________5.54

       BUFFER ___________________________________240 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 FAST

       BYTES PER TRACK (unformatted) ____________48,460 average

       SECTORS PER DRIVE ________________________1,046,205

       TPI (TRACKS PER INCH) ____________________2150

       AVERAGE ACCESS (ms) (read/write)__________10.5/11.2

         Drive level without controller overhead

       SINGLE TRACK SEEK (ms) ___________________2

       MAX FULL SEEK (ms) _______________________24

       MTBF (power-on hours) ____________________200,000

       POWER REQUIREMENTS: +12V START-UP (amps) _1.5

                           +12V TYPICAL (amps) __0.4

                           +5V START-UP (amps) __

                           +5V TYPICAL (amps) ___0.6

                           TYPICAL (watts) ______6.5

                           MAXIMUM (watts) ______

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):     1.00/25.4

                        Width  (inches/mm):     4.02/102.1

                        Depth  (inches/mm):     5.77/146.6

                        Weight    (lbs/kg):     1.5/0.68

Already low-level formatted at the factory with one spare sector

per track and two spare cylinders/unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (06/24/95)


ST-3620N
ST-3620N SCSI-2 Fast (Hawk 1LP)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-3620N only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

         50 pin I/O Cable Connection

         ³

    J1ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ1¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

     Íµ:::::::::::::::::::::::::ÆÍ³ 0 0 0 0 ³ÍÍ

      ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-3620NC only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                     80 pin I/O and DC Power Wall/bracket Connection

                     ³

    J1          /ÄÄÄÄ³ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ\      TOP (HDA)

     ÍÍÍÍÍÍÍÍÍÍ/ ×××××××××××××××××××× \ÍÍÍÍÍÍÍÍÍÍ

              (\Ä1ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ40/)    BOTTOM

     Notes on 80 pin I/O connector:

       pins  1 -  4 = +12v        41 - 44 = 12v GND

            34 - 36 = +5v         74 - 76 = 5v GND

                 37 = SYNC             77 = LEDC

                 38 = MTRON            78 = DLYDST

                 39 = SCSIA0           79 = SCSIA1

                 40 = SCSIA2           80 = SCSIA3

  Mating NC connector: AMP US p/n: 2-557103-1 straight-in

                                   2-557101-1 right angle to PCB

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º RIGHT SIDE VIEW º  (Both ST-3620N and ST-3620NC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Reserved

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)

  ³     Enable T-Res ÄÄÙ³³ÀÄÄ Motor Start

  ³    Parity Enable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍÍ          ³

    ³                                              ³

    ³  1 2     1 2      1 2                        ³

    ³ ÖÄ·       ÖÄ·    ÖÄÄÄ·  A Drive Supplies Bus ³

    ³ ºøºø     øºøº    ÓøÄø½  B Drive Supplies Own ³

    ³ Óø½ø     øÓø½     ø ø   C Bus Supplies Drive ³

    ³   A       B        C                         ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º LEFT SIDE VIEW º  (ST-3620N only)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼             If these ID jumpers are used,

                                 then ID jumpers shown in front

                                 view ARE NOT USED.

  FRONT                TOP (HDA)                 J5 ÕÍÍ1¸ ÕÍ¸BACK

   OF   ÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ:::ÆÍµJ1 OF

  DRIVE                BOTTOM                       ÔÍÍÍ¾ ÔÍ¾DRIVE

                                                     ³³³

                                               ID 1 ÄÙ³ÀÄ ID 4

                                                    ID 2

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (Both ST-3620N and ST-3620NC)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                      TOP (HDA)   J6  ÕÍÍÍÍÍ1¸

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::::ÆÍ

                 *    BOTTOM          ÔÍÍÍÍÍÍ¾

                 ³                     123456

            LED ÄÙ                     ³³³³³³

                                  ID 4 Ù³³³³À Reserved

                                  ID 2 ÄÙ³³ÀÄ Remote LED (pin-3 +5v)

                                  ID 1 ÄÄÙÀÄÄ Spindle Synchronization

                                               (pin-6 REF SIG+)

      If these ID jumper are used, then

         ID jumpers shown in left side view J5

         or 80 pin I/O cable ARE NOT USED.

                            ST-3620N

                            Hawk 1LP

       UNFORMATTED CAPACITY (MB) ________________651.8

       FORMATTED CAPACITY (xx SECTORS) (MB) _____545.9

       AVERAGE SECTORS PER TRACK ________________78 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________13,500

       CYLINDERS __PHYSICAL______________________2,700 user

       HEADS ______PHYSICAL______________________5

       DISCS (3.5 in) ___________________________3

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec)________24.4 to 42.4

       EXTERNAL TRANSFER RATE (mbyte/sec) _______4 Async

       EXTERNAL TRANSFER RATE (mbyte/sec) _______10 Sync

       SPINDLE SPEED (RPM) ______________________5411

       AVERAGE LATENCY (mSEC) ___________________5.54

       BUFFER ___________________________________256/1024 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 FAST

       SECTORS PER DRIVE ________________________

       TPI (TRACKS PER INCH) ____________________3000

       AVERAGE ACCESS (ms) (read/write)__________9.3/10.5

         Drive level without controller overhead

       SINGLE TRACK SEEK (ms) (read/write)_______1.0/1.7

       MAX FULL SEEK (ms) (read/write)___________19.4/22.9

       MTBF (power-on hours) ____________________500,000

       SHOCK (G's):

                operating (Read/Write) __________10

                nonoperating ____________________75

       ACOUSTICS (typ/max dBA) __________________/

       POWER REQUIREMENTS: +12V START-UP (amps) _1.5

                           +12V TYPICAL (amps) __0.5

                           +5V START-UP (amps) __

                           +5V TYPICAL (amps) ___0.2

                           TYPICAL (watts) ______7

                           MAXIMUM (watts) ______

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):     1.00/25.4

                        Width  (inches/mm):     4.02/102.1

                        Depth  (inches/mm):     5.77/146.6

                        Weight    (lbs/kg):     1.5/0.68

Already low-level formatted at the factory with one spare sector

per track and two spare cylinders/unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (08/09/94)


ST-3620W
ST-3620W Fast Wide SCSI-2 (Hawk 1LP)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-3620W)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

        (TOP)                   Auxiliary

          ___________________  ÚÄÄ  Ä1¿/ÍÍÍÍÍÍÍÍÍ\

        Í( ×××××××××××××××××1)Í³::::::³³ 0 0 0 0 ÆÍ

          \ÄÄÄÄÄÄÄÄÄÄÄÄ³ÄÄÄÄ/  À  ÄÄ  ÙÀÄ5ÄGÄGÄ12Ù

       68 pin I/O CableÙ        ³³³³³³

                                ³³³³³³

                                ³³³³³³

                                ³³³³³³

        Auxiliary option header ³³³³³³

           pin-11 +5v  ÄÄÄÄÄÄÄÄÄÙ³³³³³

           pin-10 GND  ÄÄÄÄÄÄÄÄÄÄÙ³³³³

           SCSI ID = 8 ÄÄÄÄÄÄÄÄÄÄÄÙ³³³

           SCSI ID = 4 ÄÄÄÄÄÄÄÄÄÄÄÄ´³³

            or pin-6 REFIND+ ÄÄÄÄÄÄÙ³³

           SCSI ID = 2 ÄÄÄÄÄÄÄÄÄÄÄÄÄÙ³

           SCSI ID = 1 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

           SCSI ID = 0 (none)

  ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

  º RIGHT SIDE VIEW º  (ST-3620W)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

BACK   ÕÍ¸       J2  12345678                    TOP (HDA)  FRONT

 OF    J1ÆÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ OF

DRIVE  ÔÍ¾           ::::::::                    BOTTOM     DRIVE

                     ³³³³³³³³

   ³Terminator Power Ù³³³³³³À Reserved

  Ú´Terminator Power ÄÙ³³³³ÀÄ Start Delay (12 secs * ID)

  ³     Enable T-Res ÄÄÙ³³ÀÄÄ Motor Start

  ³    Parity Enable ÄÄÄÙÀÄÄÄ Write Protect

  ³

  ³

  ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

  ÀÄ´ Termination Power-source Table ³

    ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³ÍÍÍÍÍ....ÍÍÍÍÍ....ÍÍÍÍÍPWA edgeÍÍÍÍÍ          ³

    ³                                              ³

    ³  1 2     1 2      1 2                        ³

    ³ ÖÄ·       ÖÄ·    ÖÄÄÄ·  A Drive Supplies Bus ³

    ³ ºøºø     øºøº    ÓøÄø½  B Drive Supplies Own ³

    ³ Óø½ø     øÓø½     ø ø   C Bus Supplies Drive ³

    ³   A       B        C                         ³

    ÀÄÄÄÄÄÄÄÄÄDefaultÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»

  º FRONT VIEW º  (ST-3620W)

  ÈÍÍÍÍÍÍÍÍÍÍÍÍ¼

                      TOP (HDA)   J6  ÕÍÍÍÍÍ1¸

     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍµ::::::ÆÍ

                 *    BOTTOM          ÔÍÍÍÍÍÍ¾

                 ³                     ³³³³³³

            LED ÄÙ                     ³³³³³³

                                       ³³³³³³

                                       ³³³³³³

               Auxiliary option header ³³³³³³

                  pin-11 +5v  ÄÄÄÄÄÄÄÄÄÙ³³³³³

                  pin-10 GND  ÄÄÄÄÄÄÄÄÄÄÙ³³³³

                  SCSI ID = 8 ÄÄÄÄÄÄÄÂÄÄÄÙ³³³

                   or pin-8 BUSY ÄÄÄÄÙ    ³³³

                  SCSI ID = 4 ÄÄÄÄÄÄÄÂÄÄÄÄÙ³³

                   or pin-6 REFIND+ ÄÙ     ³³

                  SCSI ID = 2 ÄÄÄÄÄÄÄÄÄÄÄÄÄÙ³

                  SCSI ID = 1 ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

                  SCSI ID = 0 (none)

      If these ID jumper are used, then

         ID jumpers shown in left side view J5

         or 80 pin I/O cable ARE NOT USED.

                            ST-3620W

                            Hawk 1LP

       UNFORMATTED CAPACITY (MB) ________________651.8

       FORMATTED CAPACITY (xx SECTORS) (MB) _____545.9

       AVERAGE SECTORS PER TRACK ________________78

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________24,300

       CYLINDERS ________________________________2,700 user

       HEADS ______PHYSICAL______________________5

       DISCS (3.5 in) ___________________________3

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec)________24.4 to 42.4

       EXTERNAL TRANSFER RATE (mbyte/sec) _______20 Sync

       SPINDLE SPEED (RPM) ______________________5411

       AVERAGE LATENCY (mSEC) ___________________5.54

       BUFFER ___________________________________256/1024 KByte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 FAST WIDE

       TPI (TRACKS PER INCH) ____________________3000

       AVERAGE ACCESS (ms) (read/write)__________9.3/10.5

         Drive level without controller overhead

       SINGLE TRACK SEEK (ms) (read/write)_______1.2/1.7

       MAX FULL SEEK (ms) (read/write)___________19.4/20.4

       MTBF (power-on hours) ____________________500,000

       SHOCK (G's):

                operating (Read/Write) __________10

                nonoperating ____________________75

       ACOUSTICS (typ/max dBA) __________________/

       POWER REQUIREMENTS: +12V START-UP (amps) _1.9

                           +12V TYPICAL (amps) __0.37

                           +5V START-UP (amps) __0.65

                           +5V TYPICAL (amps) ___0.45

                           TYPICAL (watts) ______7

                           MAXIMUM (watts) ______

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:

                        Height (inches/mm):     1.00/25.4

                        Width  (inches/mm):     4.02/102.1

                        Depth  (inches/mm):     5.77/146.6

                        Weight    (lbs/kg):     1.5/0.68

Already low-level formatted at the factory with 9 spare sector

per cylinder and 2 spare cylinders/unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/24/94)


ST-3655N

Rear View              ÚÄ 50 pin SCSI Interface I/O connector

                       ³

                       ³                    DC power

   (TOP)      ÕÍÍÍÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍÍÍ¸ /Ä5ÄGÄGÄ12\

          ÍÍÍÍµ::::::::::::::::::::::::1ÆÍµ 0 0 0 0 ÆÍ

   (BOTTOM)   ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄÄÄÄÄÄÄÄÄÙ

                 ÚÄÄÄÄÄ1 ÚÄÄÄÄÄ1 ÚÄÄÄÄÄ1

                 ÀÄÄÄÄÄÙ ÀÄÄÄÄÄÙ ÀÄÄÄÄÄÙ

                  Terminating Resistor Packs

ST-3655N

Left View                       o o o1

              (TOP)             o o o     ÕÍ¸

     Front....ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍØÍØÍØÍÍÍÍÍµ I/O connector

                                ³ ³ ³     ÔÍ¾

             SCSI Address ID 1 ÄÙ ³ ³

                          ID 2 ÄÄÄÙ ³

                          ID 4 ÄÄÄÄÄÙ

ST-3655N

Right View

                 o o4     o o o6         (TOP)

           ÕÍ¸  1o³o     1o³o o

    DC Power ÆÍÍÍÍØÍÍÍÍÍÍ  ³    ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

           ÔÍ¾    ³        ³

                  ³      ÄÄÁÄÄÄÄ

                  ³      Active/Passive Termination

                ÄÄÁÄÄ    ÄÄÂÄÄÄÄ

     Terminator Power  ÚÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

                ÄÄÂÄÄ  ³ Active: Pins 1 & 2 shorted     ³

                  ³    ³         only (+2.85V to        ³

                  ³    ³         110 ê) for FAST        ³

                  ³    ³         SCSI; default.         ³

                  ³    ³Passive: Pins 2 & 4 shorted     ³

                  ³    ³         AND pins 5 & 6 shorted ³

                  ³    ³         (+5V and GND to        ³

                  ³    ³         220/330 ê) for         ³

                  ³    ³         standard SCSI.         ³

                  ³    ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

                  ³

    ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

    ³Terminator Power: From SCSI Connector ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Pins 1 & 2     ³

    ³                  From Power Connector (default) ÄÄÄÄÄ Pins 1 & 3     ³

    ³                  To SCSI Connector Only ÄÄÄÄÄÄÄÄÄÄÄÄÄ Pins 3 & 4     ³

    ³                  From Power Connector and ÄÄÄÄÄÄÄÄÄÄÄ Pins 1 & 2 AND ³

    ³                    to SCSI Bus --------------------------- 3 & 4     ³

    ³                 Terminating Resistors not Installed Ä Pins 2 & 4     ³

    ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

ST-3655N

Front View

                 ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ SCSI ID's (none for ID0)

                 ³                    not used if ID set on side jumpers

                 ³   ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Ext. Spindle Clock Synch

                 ³   ³                pin-5 is Clock Ground

                 ³   ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄ Remote LED

  (TOP)        ÚÄÁÄ¿ ³ ³     ÚÄÄÄÄÄÄ Reserved

               4 2 1 ³ ³ ÚÄÄÄÁÄÄÄ¿

               o o o o o-o o o o o

              1o o o o o+o o o o o  o o o o+

               ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ1o o o o-ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

                                    ³ ³ ³ ³

  (BOTTOM)                          ³ ³ ³ ÀÄÄ Remote LED

                                    ³ ³ ÀÄÄÄÄ Ext. Spindle Clock Synch

                                    ³ ³        pin-5 is Clock Ground

                                    ³ ÀÄÄÄÄÄÄ Remote Start Enable

                                    ÀÄÄÄÄÄÄÄÄ Parity Enable

                             ST-3655N

       UNFORMATTED CAPACITY _____________________

       FORMATTED CAPACITY (xx SECTORS) __________545.29

       AVERAGE SECTORS PER TRACK ________________89 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________13,380

       CYLINDERS ________________________________2,393 (user)

       HEADS ____________________________________5

       DISCS (3.5 in) ___________________________3

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______21.6 to 36.3

       EXTERNAL TRANSFER RATE (mbyte/sec) _______4 Async

       EXTERNAL TRANSFER RATE (mbyte/sec) _______10 Sync

       SPINDLE SPEED (RPM) ______________________4,500

       AVERAGE LATENCY (mSEC) ___________________6.67

       BUFFER ___________________________________256 Kbyte SeaCache

        Multisegmented, read look-ahead

       INTERFACE ________________________________SCSI-2 Fast

       BYTES PER TRACK __________________________40,754 avg.

       SECTORS PER DRIVE ________________________1,065,036

       TPI (TRACKS PER INCH) ____________________3,000

       BPI (BITS PER INCH) ______________________52,602

       AVERAGE ACCESS (ms) ______________________12

       SINGLE TRACK SEEK (ms) ___________________<4

       MAX FULL SEEK (ms) _______________________30

       MTBF (power-on hours) Office _____________250,000

       POWER REQUIREMENTS: +12V START-UP (amps) _1.9

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________5.75

                           IDLE _________________3.0

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________0

Formatted at the factory with 2 alternate cylinders.  Total physical

cylinders equal 2678.

       Physical:

                        Height (inches/mm):     1.00/25.4

                        Width  (inches/mm):     4.02/102.1

                        Depth  (inches/mm):     5.77/146.6

                        Weight    (lbs/kg):     1.5/0.68

Note: If FAST SCSI transfer rates are used, then the active

termination options must be used.  If the transfer rates are 5.0

MBytes/sec and below, either method of termination can be used.

Although active and passive terminated devices can be installed on the

same bus, both ends of the cable should be terminated in the same

manner, either both active or both passive.

Note: If your application requires no terminators, remove the

terminators from the circuit board.  Merely removing the terminator

power source selection jumper does not disconnect the terminator

resistors from the circuit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (08/08/94)


ST-410800N
ST-410800N  Elite 9 Fast SCSI-2

                                     ÚÄ Terminator Power Source (see below)ÄÄ¿

                                   4o³o3                                     ³

J4A                                2o o1                                J4B  ³

   o o o o o o  A R o  o                                Power    o o o o     ³

   o o o o o o  g F o  o ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸ Ú12ÄGÄGÄ5Ä¿ o o o o     ³

  ÍØÍØÍØÍØÍØÍØÍÍØÍØÍØÍÍØÍµ::::::::::::::::::::::::1ÆÍµ 0 0 0 0 ÆÍØÍØÍØÍØÍÍ   ³

   ³ 4 2 1 ³ ³  ÃÄÙ ³  ³ ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ \ÄÄÄÄÄÄÄÄÄ/ ³ ³ ³ ³     ³

   ³ ÄÄÂÄÄ ³ ³  ³   ³  ³    SCSI Cable Connector                 ³ ³ ³ ³     ³

   ³   ³   ³ ³  ³   ³  ³                                         ³ ³ ³ ³     ³

   ³   ³   ³ ³  ³   ³  ÀÄÄ Spindle Synch Cable Connector         ³ ³ ³ ³     ³

   ³   ³   ³ ³  ³   ³        (top pin: SSREF, bottom: ground)    ³ ³ ³ ³     ³

   ³   ³   ³ ³  ³   ÀÄÄÄÄÄ Terminator Enable (N&W models only)   ³ ³ ³ ³     ³

   ³   ³   ³ ³  ÀÄÄÄÄÄÄÄÄÄ LED Connection (g: ground pin)        ³ ³ ³ ³     ³

   ³   ³   ³ ³                 Activity (A-G)                    ³ ³ ³ ³     ³

   ³   ³   ³ ³                    Ready (R-G)                    ³ ³ ³ ³     ³

   ³   ³   ³ ³                    Fault (F-G)                    ³ ³ ³ ³     ³

   ³   ³   ³ ÀÄ Reserved                                         ³ ³ ³ ³     ³

   ³   ³   ÀÄÄÄ Write Protect Enable              Spinup Delay  ÄÙ ³ ³ ³     ³

   ³   ÀÄÄÄÄÄÄÄ SCSI ID                          (10 secs * ID)    ³ ³ ³     ³

   ÀÄÄÄÄÄÄÄÄÄÄÄ Reserved              Motor Start option enable ÄÄÄÙ ³ ³     ³

                                           Parity check DISable ÄÄÄÄÄÙ ³     ³

                                                       Reserved ÄÄÄÄÄÄÄÙ     ³

 ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸                                        ³

 ³  Terminator Power Source Options ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

 ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

 ³  2 & 4 Ä Initiator supplies power over the SCSI Bus for terminators. ³

 ³            Drive supplies no terminator power.                       ³

 ³  1 & 2 Ä Drive supplies power for its own terminator resistor-paks   ³

 ³            but not to SCSI Bus.  This is the factory setting.        ³

 ³  1 & 3                                                               ³

 ³   AND  Ä Drive supplies power for external terminator at end of the  ³

 ³  2 & 4     daisy chain. Terminator resistor-paks must be removed.    ³

 ³            This option is recommended only for last drive on daisy   ³

 ³            chain.                                                    ³

 ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

        ST410800ND drives are shipped with two DIP terminators

        installed in sockets on the PCB. Remove to disable.

                             ST-410800N

                              Elite 9

       UNFORMATTED CAPACITY _____________________10,800

       FORMATTED CAPACITY (512 byte blk) ________9,090

       AVERAGE SECTORS PER TRACK ________________133 (rounded down)

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________132,975

       CYLINDERS ________________________________4925

       HEADS ____________________________________27

       DISCS (5.25 in) __________________________14

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______44-65

       INTERNAL TRANSFER RATE AVG (mbyte/sec) ___7.2

       EXTERNAL TRANSFER RATE (mbyte/sec) _______10 (burst)

       SPINDLE SPEED (RPM) ______________________5,400

       AVERAGE LATENCY (mSEC) ___________________5.55

       COMMAND OVERHEAD (mSEC) __________________<0.5

       BUFFER ___________________________________1024 Kbyte

         Read Look-Ahead, Adaptive, Multi-Segmented

         Cache

       INTERFACE ________________________________SCSI-2 FAST

                                                 ASA

       BYTES PER TRACK __________________________63,000-91,000

       SECTORS PER DRIVE ________________________17,845,731

       BYTES PER CYLINDER _______________________1,058,400 to 1,587,600

       TPI (TRACKS PER INCH) ____________________3,921

       BPI (BITS PER INCH) ______________________

       AVERAGE ACCESS (ms) read/write ___________11/12

       SINGLE TRACK SEEK (ms) read/write ________0.9/1.7

       MAX FULL SEEK (ms) read/write ____________23/24

       MTBF (power-on hours) Class A Room _______NA

       MTBF (power-on hours) Office _____________500,000

       POWER DISSIPATION (watts/BTUs) Active ____25/85

                                      Idle ______22/75

       POWER REQUIREMENTS: Single-ended/Differential

                           +12V START-UP (amps) _4.8/4.8

                           +12V TYPICAL (amps) __1.57/1.57

                           +5V START-UP (amps) __0.98/1.0

                           +5V TYPICAL (amps) ___0.665/0.71

                      TYPICAL ( watts seek/read)_32.60/36.41

                      IDLE (watts) ______________28.34/31.81

       USER MANUAL PART NUMBER __________________

** Already low-level formatted at the factory with nine spare sectors

per cylinder, one spare cylinders/unit, one system cylinder/unit, and

one diagnostic cylinder/unit.

       Physical:

                        Height (inches/mm):     3.25/82.6

                        Width  (inches/mm):     5.75/146.1

                        Depth  (inches/mm):     8.0/203

                        Weight    (lbs/kg):     7.8/3.6

Seagate reserves the right to change, without notice, product

offerings or specifications. (03/24/94)


ST-410800W
ST-410800W  Elite 9 Fast SCSI-2 Wide

                                     ÚÄ Terminator Power Source (see below)ÄÄ¿

                                   4o³o3                                     ³

J4A                                2o o1                                J4B  ³

   o o o o o o  A R o  o                                Power    o o o o     ³

   o o o o o o  g F o  o    ___________________      Ú12ÄGÄGÄ5Ä¿ o o o o     ³

  ÍØÍØÍØÍØÍØÍØÍÍØÍØÍØÍÍØÍÍÍ( ×××××××××××××××××1)ÍÍÍÍÍµ 0 0 0 0 ÆÍØÍØÍØÍØÍÍ   ³

   8 4 2 1 ³ ³  ÃÄÙ ³  ³    \ÄÄÄÄÄÄÄÄÄÄÄÄ³ÄÄÄÄ/      \ÄÄÄÄÄÄÄÄÄ/ ³ ³ ³ ³     ³

   ÄÄÄÂÄÄÄ ³ ³  ³   ³  ³ SCSI Cable Connector 68-pin             ³ ³ ³ ³     ³

      ³    ³ ³  ³   ³  ³                                         ³ ³ ³ ³     ³

      ³    ³ ³  ³   ³  ÀÄÄ Spindle Synch Cable Connector         ³ ³ ³ ³     ³

      ³    ³ ³  ³   ³        (top pin: SSREF, bottom: ground)    ³ ³ ³ ³     ³

      ³    ³ ³  ³   ÀÄÄÄÄÄ Terminator Enable (N&W models only)   ³ ³ ³ ³     ³

      ³    ³ ³  ÀÄÄÄÄÄÄÄÄÄ LED Connection (g: ground pin)        ³ ³ ³ ³     ³

      ³    ³ ³                 Activity (A-G)                    ³ ³ ³ ³     ³

      ³    ³ ³                    Ready (R-G)                    ³ ³ ³ ³     ³

      ³    ³ ³                    Fault (F-G)                    ³ ³ ³ ³     ³

      ³    ³ ÀÄ Reserved                                         ³ ³ ³ ³     ³

      ³    ÀÄÄÄ Write Protect Enable              Spinup Delay  ÄÙ ³ ³ ³     ³

      ÀÄÄÄÄÄÄÄÄ SCSI ID                          (10 secs * ID)    ³ ³ ³     ³

                                      Motor Start option enable ÄÄÄÙ ³ ³     ³

                                           Parity check DISable ÄÄÄÄÄÙ ³     ³

                                                       Reserved ÄÄÄÄÄÄÄÙ     ³

 ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸                                        ³

 ³  Terminator Power Source Options ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

 ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

 ³  2 & 4 Ä Initiator supplies power over the SCSI Bus for terminators. ³

 ³            Drive supplies no terminator power.                       ³

 ³  1 & 2 Ä Drive supplies power for its own terminator resistor-paks   ³

 ³            but not to SCSI Bus.  This is the factory setting.        ³

 ³  1 & 3                                                               ³

 ³   AND  Ä Drive supplies power for external terminator at end of the  ³

 ³  2 & 4     daisy chain. Terminator resistor-paks must be removed.    ³

 ³            This option is recommended only for last drive on daisy   ³

 ³            chain.                                                    ³

 ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

        ST410800WD drives are shipped with three DIP terminators

        installed in sockets on the PCB. Remove to disable.

                             ST-410800W

                              Elite 9

       UNFORMATTED CAPACITY _____________________10,800

       FORMATTED CAPACITY (512 byte blk) ________9,090

       AVERAGE SECTORS PER TRACK ________________133 (rounded down)

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________132,975

       CYLINDERS ________________________________4925

       HEADS ____________________________________27

       DISCS (5.25 in) __________________________14

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______44-65

       INTERNAL TRANSFER RATE AVG (mbyte/sec) ___7.2

       EXTERNAL TRANSFER RATE (mbyte/sec) _______20 (burst)

       SPINDLE SPEED (RPM) ______________________5,400

       AVERAGE LATENCY (mSEC) ___________________5.55

       COMMAND OVERHEAD (mSEC) __________________<0.5

       BUFFER ___________________________________1024 Kbyte

         Read Look-Ahead, Adaptive, Multi-Segmented

         Cache

       INTERFACE ________________________________SCSI-2 FAST

                                                 ASA

       BYTES PER TRACK __________________________63,000-91,000

       SECTORS PER DRIVE ________________________17,845,731

       BYTES PER CYLINDER _______________________1,058,400 to 1,587,600

       TPI (TRACKS PER INCH) ____________________3,921

       BPI (BITS PER INCH) ______________________

       AVERAGE ACCESS (ms) read/write ___________11/12

       SINGLE TRACK SEEK (ms) read/write ________0.9/1.7

       MAX FULL SEEK (ms) read/write ____________23/24

       MTBF (power-on hours) Class A Room _______NA

       MTBF (power-on hours) Office _____________500,000

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: Single-ended/Differential

                           +12V START-UP (amps) _4.8/4.8

                           +12V TYPICAL (amps) __1.56/1.56

                           +5V START-UP (amps) __1.0/1.1

                           +5V TYPICAL (amps) ___0.7/1.0

                      TYPICAL ( watts seek/read)_32.60/36.41

                      IDLE (watts) ______________28.34/31.81

       USER MANUAL PART NUMBER __________________

       OTHER ____________________________________

        Synchronized Spindles, Sweep Cycle Capability

** Already low-level formatted at the factory with nine spare sectors

per cylinder, one spare cylinders/unit, one system cylinder/unit, and

one diagnostic cylinder/unit.

       Physical:

                        Height (inches/mm):     3.25/82.6

                        Width  (inches/mm):     5.75/146.1

                        Depth  (inches/mm):     8.0/203

                        Weight    (lbs/kg):     7.8/3.6

Seagate reserves the right to change, without notice, product

offerings or specifications. (03/24/94)


ST-41200N
ST-41200N (94601-1200) Wren 7 SCSI and SCSI-2

                     ÚÄÄ Some 16-pin configurations may not have these pins.

                     ³

                     ³  ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸ /Ä4Ä3Ä2Ä1Ä\

      ÍÍÍÍÍPÍWÍAÍÍÍÍÍØÍÍµ:::SCSI:Cable:::::::::::::::1ÆÍµ 0 0 0 0 ÆÍÍ

      ÚÄ¿            ³  ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù

      ³o³o o o o o o(o)o ÚÄÄÄÄÄÄÄÄ1ÚÄÄÄÄÄÄÄÄ1ÚÄÄÄÄÄÄÄÄ1     Power

      ÅoÅo o o o o o(o)o ÀÄÄÄÄÄÄÄÄÙÀÄÄÄÄÄÄÄÄÙÀÄÄÄÄÄÄÄÄÙ

      ÀÄÙ  4 2 1 M P ³ ³    Terminator Resistor SIPS

       ³   ÄÄÂÄÄ ³ ³ ³ ³

       ³     ³   ³ ³ ³ ÀÄ  Reserved

       ³     ³   ³ ³ ÀÄÄÄ  Motor Start Delay ( 16 sec * ID)

       ³     ³   ³ ÀÄÄÄÄÄ  Parity option enable

       ³     ³   ÀÄÄÄÄÄÄÄ  Motor Start option enable

       ³     ÀÄÄÄÄÄÄÄÄÄÄÄ  Drive ID's, ID 0 (none) if only SCSI device

       ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅ  Terminator power from Drive (vertical)

                        À  Terminator power from Bus (lower horizontal)

                             ST-41200N

                        94601-12G/M WREN 7 FH

       UNFORMATTED CAPACITY (MB) ________________1.2G

       FORMATTED CAPACITY (xx SECTORS) (MB) _____1037

       AVERAGE SECTORS PER TRACK ________________71

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________28965

       CYLINDERS ________________________________1931

       HEADS ____________________________________15

       DISCS ____________________________________8

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       TRANSFER RATE (mbytes/sec) _______________1.875-2.875

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________256 Kbyte

         SCSI-1: Read Look-Ahead, Non_Adaptive,

          Single-Segmented Buffer

         SCSI-2: Read Look-Ahead, Adaptive,

          Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2

       TPI (TRACKS PER INCH) ____________________1600

       BPI (BITS PER INCH) ______________________32750

       AVERAGE ACCESS (ms) ______________________15

       SINGLE TRACK SEEK (ms) ___________________2.5

       MAX FULL SEEK (ms) _______________________34

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _4.5

                           +12V TYPICAL (amps) __1.6

                           +5V START-UP (amps) __1.1

                           +5V TYPICAL (amps) ___0.8

                           TYPICAL (watts) ______24

                           MAXIMUM (watts) ______60

       BUFFERED STEP PULSE RATE (micro sec) _____

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-41520N
ST-41520N  (97501-16G) Elite-1 FH SCSI-2

       Ö Ä Ä Ä Ä Ä ·                           ÚÄÄÄÄÄÄÄÄÄ Parity DISable

       º I/O Board º                           ³ ÚÄÄÄÄÄÄÄ Spinup Delay (10 sec)

       Ó Ä Ä Ä Ä Ä ½                           ³ ³ ÚÄÄÄÄÄ Manual Reset

                                               ³ ³ ³ ÚÄÄÄ Active LED (red)

      ÚÄÄ Spindle Sync                         ³ ³ ³ ³ ÚÄ Heartbeat LED (green)

     A³                          SCSI ID ÄÄ¿   ³ ³ ³ ³ ³

    1o-o¿  ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸     ³   o o o     ´p nÃ  ³::::::::::::::::::::::::1³   ÄÄÁÄÄ o o o

    ³o o³  ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾   o o o                       o

    Ào-oÙ  ÚÄÄÄÄÄÄÄÄÄÄ1   ÚÄÄÄÄÄÄÄÄÄÄ1   o o o                       o

     o-o5  ÀÄÄÄ³ÄÄÄÄÄÄÙ   ÀÄÄÄ³ÄÄÄÄÄÄÙ   4 2 1                       ³

      ³B       À T-RES        À T-RES only on          Motor Start ÄÄÙ

      ³                 3o o4   Differential            Enable

      ÀÄÄ Select        2o³o1

           Plug           ³

                          ³                            DC Power Connector J15

 ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÍÍÍÍÍÍ¸                 0Ä0Ä0Ä0Ä0Ä0Ä0Ä0Ä0Ä1

 ³  Terminator Power Source Options ³

 ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

 ³  2 & 3 Ä Host supplies power over the SCSI Bus for terminators.      ³

 ³            Drive supplies no terminator power.                       ³

 ³  1 & 2 Ä Drive supplies power for its own terminator resistor-paks   ³

 ³            but not to SCSI Bus.  This is the factory setting.        ³

 ³      4 - Not used.                                                   ³

 ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

       Ö Ä Ä Ä Ä Ä Ä ·

       º Servo Board º

       Ó Ä Ä Ä Ä Ä Ä ½

      Fault LED (red) ÄÄÄÄÄÄ¿

    Ready LED (green) ÄÄÄ¿  ³          DIP SWITCHES

Unit Selected (amber) ¿  ³  ³     S3        S2        S1

                      ³  ³  ³  ÚÄÄÄÄÄÄÄÄ¿ÚÄÄÄÄÄÄÄÄ¿ÚÄÄÄÄÄÄÄÄ¿On

                         ³12345678³³12345678³³12345678³

                               ÀÄÄÄÄÄÄÄÄÙÀÄÄÄÄÄÄÄÄÙÀÄÄÄÄÄÄÄÄÙOff

                                ÀÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÙ³  ³³³³ÀÄÂÙ

                                         ³       ³  ³³³³  ³

             Sector Switches (all OFF) ÄÄÙ       ³  ³³³³  ³

                           Runt Sector Ä8ÄÄÄÄÄÄÄÄÙ  ³³³³  ³

                    Sweep Cycle Enable Ä1ÄÄÄÄÄÄÄÄÄÄÄÙ³³³  ³

            Enable Sweep only on seeks Ä2ÄÄÄÄÄÄÄÄÄÄÄÄÙ³³  ³

         Manufacturing Test (keep OFF) Ä3ÄÄÄÄÄÄÄÄÄÄÄÄÄÙ³  ³

             Write Enable (default ON) Ä4ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ  ³

        Unit Select Switches (all OFF) Ä6Ä8ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

                             ST-41520N

                             Elite-1 FH

       UNFORMATTED CAPACITY _____________________1,600,930,800

       FORMATTED CAPACITY (xx SECTORS) __________1,370,545,152 **

       AVERAGE SECTORS PER TRACK (with spares)___74.945

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS/USER ______________________________35,717/35,666

       CYLINDERS/USER ___________________________2,101/2,098

       HEADS ____________________________________17

       DISCS ____________________________________10

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (2,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______26 to 36

       EXTERNAL TRANSFER RATE (mbytes/sec) ______5

       SPINDLE SPEED (RPM) ______________________5,400

       AVERAGE LATENCY (mSEC) ___________________5.56

       COMMAND OVERHEAD (msec) __________________<0.5

       BUFFER ___________________________________256 Kbyte

         Read Look-Ahead, Adaptive, Multi-Segmented

         Cache

       INTERFACE ________________________________SCSI-2

       BYTES PER TRACK __________________________36,400 to 50,400

       SECTORS PER DRIVE ________________________2,768,896

       BYTES PER CYLINDER _______________________618,800 to 856,800

       TPI (TRACKS PER INCH) ____________________

       BPI (BITS PER INCH) ______________________

       AREAL DENSITY ____________________________

       AVERAGE ACCESS (ms) ______________________11.5

       SINGLE TRACK SEEK (ms) ___________________1.7

       MAX FULL SEEK (ms) _______________________22.5

       MTBF (power-on hours) Class A Room _______250,000

       MTBF (power-on hours) Office _____________150,000

       POWER DISSIPATION (watts/BTU) ____________

       POWER REQUIREMENTS: Single-ended/Differential

                           +12V START-UP (amps) _2.2/3.2

                           +12V TYPICAL (amps) __1.8/1.8

                           +5V START-UP (amps) __2.1/2.9

                           +5V TYPICAL (amps) ___2.0/2.3

                           TYPICAL (watts) ______31.6/33.1

                           MAXIMUM (watts) ______36.9/39.4

       LANDING ZONE (cyl) _______________________AUTO PARK

       USER MANUAL PART NUMBER __________________83327300

       REFERENCE MANUAL PART NUMBER _____________86627310

       IBM AT DRIVE TYPE ________________________0 or NONE

       OTHER ____________________________________DUAL PORT

ZBR = Zone Bit Recording = Variable sectors per track

** Already low-level formatted at the factory with six spare sectors

per cylinder, one spare cylinders/unit, one system cylinder/unit, and

one diagnostic cylinder/unit.

       Physical:

                        Height (inches/mm):     3.25/82.6

                        Width  (inches/mm):     5.75/146.1

                        Depth  (inches/mm):     9.9/252.5

                        Weight    (lbs/kg):     9/4.1

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/28/91)


ST-41600N
ST-41600N  (97501-16G) Elite-1 FH SCSI-2

                             ÚÄ This T-RES only on Differential model

                             ³   (see below for T-RES descriptions)

     Spindle Sync ¿          ³       ÚÄ Terminator Power Source (see below)ÄÄ¿

                Ú4ÄÄ1ÄÄ¿  ÚÄÄ*ÄÄÄ1 4o³o3 ÚÄÄÄÄÄÄ1                            ³

               p³o oo  A  ÀÄ³ÄÄÄÄÙ 2o o1 ÀÄÄ³ÄÄÄÙ                            ³

     o o o o o n³o oo  B    ÀTerminator DIPSÙ           Power    o o o o     ³

     o o o o o  ÀÄÄÄÄÄÄÙÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸  Ú12ÄGÄGÄ5Ä¿ o o o o     ³

    ÍØÍØÍØÍØÍØÍÍPÍWÍAÍÍÍµ::::::::::::::::::::::::1ÆÍÍµ 0 0 0 0 ÆÍØÍØÍØÍØÍÍ   ³

     4 2 1 ³ ³          ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾  \ÄÄÄÄÄÄÄÄÄ/ ³ ³ ³ ³     ³

     ÄÄÂÄÄ ³ ³             SCSI Cable Connector                  ³ ³ ³ ³     ³

       ³   ³ ³                                                   ³ ³ ³ ³     ³

       ³   ³ ÀÄÄ Master off/Slave on - Spindle Sync              ³ ³ ³ ³     ³

       ³   ÀÄÄÄÄ Write Protect option enable                     ³ ³ ³ ³     ³

       ÀÄÄÄÄÄÄÄÄ SCSI ID                                         ³ ³ ³ ³     ³

                                    Spinup Delay (10 secs * ID) ÄÙ ³ ³ ³     ³

                                      Motor Start option enable ÄÄÄÙ ³ ³     ³

                                           Parity check DISable ÄÄÄÄÄÙ ³     ³

                                             Sweep Cycle enable ÄÄÄÄÄÄÄÙ     ³

                                                                             ³

 ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸                                        ³

 ³  Terminator Power Source Options ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

 ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

 ³  2 & 4 Ä Initiator supplies power over the SCSI Bus for terminators. ³

 ³            Drive supplies no terminator power.                       ³

 ³  1 & 2 Ä Drive supplies power for its own terminator resistor-paks   ³

 ³            but not to SCSI Bus.  This is the factory setting.        ³

 ³  1 & 3                                                               ³

 ³   AND  Ä Drive supplies power for external terminator at end of the  ³

 ³  2 & 4     daisy chain. Terminator resistor-paks must be removed.    ³

 ³            This option is recommended only for last drive on daisy   ³

 ³            chain.                                                    ³

 ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

    T-RES descriptions: ST41600N   1 DIP

                        ST41601N   2 SIPs

                        ST41600ND  2 DIPs

                        ST41601ND  2 DIPs

                             ST-41600N

                             Elite-1 FH

       UNFORMATTED CAPACITY ____ ________________1,600,930,800

       FORMATTED CAPACITY (xx SECTORS) ____ _____1,370,545,152 **

       AVERAGE SECTORS PER TRACK (with spares)___74.945

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS/USER ______________________________35,717/35,666

       CYLINDERS/USER ___________________________2,101/2,098

       HEADS ____________________________________17

       DISCS ____________________________________10

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (2,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______26 to 36

       EXTERNAL TRANSFER RATE (mbytes/sec) ______5

       SPINDLE SPEED (RPM) ______________________5,400

       AVERAGE LATENCY (mSEC) ___________________5.56

       COMMAND OVERHEAD (msec) __________________<0.5

       BUFFER ___________________________________256 Kbyte

         Read Look-Ahead, Adaptive, Multi-Segmented

         Cache

       INTERFACE ________________________________SCSI-2

       BYTES PER TRACK __________________________36,120 to 50,400

       SECTORS PER DRIVE ________________________2,676,846

       TPI (TRACKS PER INCH) ____________________

       BPI (BITS PER INCH) ______________________

       AREAL DENSITY ____________________________

       AVERAGE ACCESS (ms) ______________________11.5

       SINGLE TRACK SEEK (ms) ___________________1.7

       MAX FULL SEEK (ms) _______________________22.5

       MTBF (power-on hours) Class A Room _______250,000

       MTBF (power-on hours) Office _____________150,000

       POWER DISSIPATION (watts/BTU) ____________

       POWER REQUIREMENTS: Single-ended/Differential

                           +12V START-UP (amps) _2.2/3.2

                           +12V TYPICAL (amps) __1.8/1.8

                           +5V TYPICAL (amps) ___2.1/2.4

                           TYPICAL (watts) ______32.1/33.6

                           MAXIMUM (watts) ______39.1/41.6

       LANDING ZONE (cyl) _______________________AUTO PARK

       USER MANUAL PART NUMBER __________________83327460

       REFERENCE MANUAL PART NUMBER _____________83327470

       IBM AT DRIVE TYPE ________________________0 or NONE

       OTHER ____________________________________

ZBR = Zone Bit Recording = Variable sectors per track

** Already low-level formatted at the factory with six spare sectors

per cylinder, one spare cylinders/unit, one system cylinder/unit, and

one diagnostic cylinder/unit.

       Physical:

                        Height (inches/mm):     3.25/82.6

                        Width  (inches/mm):     5.75/146.1

                        Depth  (inches/mm):     8.0/203

                        Weight    (lbs/kg):     7.8/3.6

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/28/91)


ST-41601N
ST-41601N  (97501-16G) Elite-1 FH SCSI-2 Fast

                             ÚÄ This T-RES only on Differential model

                             ³   (see below for T-RES descriptions)

     Spindle Sync ¿          ³       ÚÄ Terminator Power Source (see below)ÄÄ¿

                Ú4ÄÄ1ÄÄ¿  ÚÄÄ*ÄÄÄ1 4o³o3 ÚÄÄÄÄÄÄ1                            ³

               p³o oo  A  ÀÄ³ÄÄÄÄÙ 2o o1 ÀÄÄ³ÄÄÄÙ                            ³

     o o o o o n³o oo  B    ÀTerminator DIPSÙ           Power    o o o o     ³

     o o o o o  ÀÄÄÄÄÄÄÙÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸  Ú12ÄGÄGÄ5Ä¿ o o o o     ³

    ÍØÍØÍØÍØÍØÍÍPÍWÍAÍÍÍµ::::::::::::::::::::::::1ÆÍÍµ 0 0 0 0 ÆÍØÍØÍØÍØÍÍ   ³

     4 2 1 ³ ³          ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾  \ÄÄÄÄÄÄÄÄÄ/ ³ ³ ³ ³     ³

     ÄÄÂÄÄ ³ ³             SCSI Cable Connector                  ³ ³ ³ ³     ³

       ³   ³ ³                                                   ³ ³ ³ ³     ³

       ³   ³ ÀÄÄ Master off/Slave on - Spindle Sync              ³ ³ ³ ³     ³

       ³   ÀÄÄÄÄ Write Protect option enable                     ³ ³ ³ ³     ³

       ÀÄÄÄÄÄÄÄÄ SCSI ID                                         ³ ³ ³ ³     ³

                                    Spinup Delay (10 secs * ID) ÄÙ ³ ³ ³     ³

                                      Motor Start option enable ÄÄÄÙ ³ ³     ³

                                           Parity check DISable ÄÄÄÄÄÙ ³     ³

                                             Sweep Cycle enable ÄÄÄÄÄÄÄÙ     ³

                                                                             ³

 ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸                                        ³

 ³  Terminator Power Source Options ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

 ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

 ³  2 & 4 Ä Initiator supplies power over the SCSI Bus for terminators. ³

 ³            Drive supplies no terminator power.                       ³

 ³  1 & 2 Ä Drive supplies power for its own terminator resistor-paks   ³

 ³            but not to SCSI Bus.  This is the factory setting.        ³

 ³  1 & 3                                                               ³

 ³   AND  Ä Drive supplies power for external terminator at end of the  ³

 ³  2 & 4     daisy chain. Terminator resistor-paks must be removed.    ³

 ³            This option is recommended only for last drive on daisy   ³

 ³            chain.                                                    ³

 ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

    T-RES descriptions: ST41600N   1 DIP

                        ST41601N   2 SIPs

                        ST41600ND  2 DIPs

                        ST41601ND  2 DIPs

                             ST-41601N

                             Elite-1 FH

       UNFORMATTED CAPACITY ____ ________________1,600,930,800

       FORMATTED CAPACITY (xx SECTORS) ____ _____1,370,545,152 **

       AVERAGE SECTORS PER TRACK (with spares)___74.945

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS/USER ______________________________35,717/35,666

       CYLINDERS/USER ___________________________2,101/2,098

       HEADS ____________________________________17

       DISCS ____________________________________10

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (2,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______26 to 36

       EXTERNAL TRANSFER RATE (mbytes/sec) ______10

       SPINDLE SPEED (RPM) ______________________5,400

       AVERAGE LATENCY (mSEC) ___________________5.56

       COMMAND OVERHEAD (msec) __________________<0.5

       BUFFER ___________________________________256 Kbyte

         Read Look-Ahead, Adaptive, Multi-Segmented

         Cache

       INTERFACE ________________________________SCSI-2 Fast

       BYTES PER TRACK __________________________36,120 to 50,400

       SECTORS PER DRIVE ________________________2,676,846

       TPI (TRACKS PER INCH) ____________________

       BPI (BITS PER INCH) ______________________

       AREAL DENSITY ____________________________

       AVERAGE ACCESS (ms) ______________________11.5

       SINGLE TRACK SEEK (ms) ___________________1.7

       MAX FULL SEEK (ms) _______________________22.5

       MTBF (power-on hours) Class A Room _______250,000

       MTBF (power-on hours) Office _____________150,000

       POWER DISSIPATION (watts/BTU) ____________

       POWER REQUIREMENTS: Single-ended/Differential

                           +12V START-UP (amps) _2.2/3.2

                           +12V TYPICAL (amps) __1.8/1.8

                           +5V TYPICAL (amps) ___2.1/2.4

                           TYPICAL (watts) ______32.1/33.6

                           MAXIMUM (watts) ______39.1/41.6

       LANDING ZONE (cyl) _______________________AUTO PARK

       USER MANUAL PART NUMBER __________________83327460

       REFERENCE MANUAL PART NUMBER _____________83327470

       IBM AT DRIVE TYPE ________________________0 or NONE

       OTHER ____________________________________

ZBR = Zone Bit Recording = Variable sectors per track

** Already low-level formatted at the factory with six spare sectors

per cylinder, one spare cylinders/unit, one system cylinder/unit, and

one diagnostic cylinder/unit.

       Physical:

                        Height (inches/mm):     3.25/82.6

                        Width  (inches/mm):     5.75/146.1

                        Depth  (inches/mm):     8.0/203

                        Weight    (lbs/kg):     7.8/3.6

Seagate reserves the right to change, without notice, product

offerings or specifications. (08/08/94)


ST-41650N
ST-41650N  Wren 8 FH SCSI-2

20-pin configuration jumper-block version

                        Ú Synchronous Spindles option         DC

                        ³                                     Power

                        ³   ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\

      ÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍµ:SCSI:Cable:::::::::::::::::1ÆÍµ 0 0 0 0 ÆÍÍ

      ÚÄ¿             ÚÄÁÄ¿ ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù

      ³o³o o o o o o o³o+o³   ÚÄÄÄÄÄÄ1 ÚÄÄÄÄÄÄ1 ÚÄÄÄÄÄÄ1

      ÅoÅo o o o o o o³o-o³   ÀÄÄÄÄÄÄÙ ÀÄÄÄÄÄÄÙ ÀÄÄÄÄÄÄÙ

      À1Ù  4 2 1      ÀÄÄÄÙ     Terminator SIPS

       ³ ³ ÄÄÂÄÄ ³ ³ ³

       ³ ³   ³   ³ ³ ÀÄ Motor Start Delay (16 secs * ID)

       ³ ³   ³   ³ ÀÄÄÄ Parity check enable

       ³ ³   ³   ÀÄÄÄÄÄ Motor Start option enable

       ³ ³   ÀÄÄÄÄÄÄÄÄÄ Drive ID's, ID 0 (none) if only SCSI device

       ³ ÀÄÄÄÄÄÄÄÄÄÄÄÄÄ Terminator power to the Bus (vertical)

       ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅ Terminator power from Drive, default (vertical)

                      ³ Terminator power from Bus (lower horizontal)

16-pin configuration jumper-block version

        Ú Synchronous Spindles option                         DC

        ³                                                     Power

        ³                   ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\

      ÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍµ:SCSI:Cable:::::::::::::::::1ÆÍµ 0 0 0 0 ÆÍÍ

      ÚÄÁÄ¿                 ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù

      ³o+o³o o o o o o        ÚÄÄÄÄÄÄ1 ÚÄÄÄÄÄÄ1 ÚÄÄÄÄÄÄ1  ÚÄ¿

      ³o-o³o o o o o o        ÀÄÄÄÄÄÄÙ ÀÄÄÄÄÄÄÙ ÀÄÄÄÄÄÄÙ  ³o³o

      À1ÄÄÙ4 2 1 M P            Terminator SIPS           ÅoÅoÄ¿

           ÄÄÂÄÄ ³ ³ ³                                    ÀÅÙ³ ³

             ³   ³ ³ ÀÄ Motor Start Delay (16 secs * ID)   ³ ³ ³

             ³   ³ ÀÄÄÄ Parity check enable                ³ ³ ³

             ³   ÀÄÄÄÄÄ Motor Start option enable          ³ ³ ³

             ÀÄÄÄÄÄÄÄÄÄ Drive ID's, ID 0 (none) if         ³ ³ ³

                         only SCSI device                  ³ ³ ³

                                                           ³ ³ ³

         Terminator power from Drive, default (vertical) ÄÄÙ ³ ³

                  Terminator power to the Bus (vertical) ÄÄÄÄÙ ³

            Terminator power from Bus (lower horizontal) ÄÄÄÄÄÄÙ

Both versions:

           LED

          ÚÄÄÄ¿      (Viewed from front of drive)          Ú GND

          ³ 0 ³                                            ³

      ÍÍÍÍÏÍÍÍÏÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍ

                                                         o o o  J6

                                         pin-1 (+5v) ----o o o

                                                         ³ ³ ³

                                 Remote LED connection ÄÄÙ ³ ³

                                  Write Protect Remote ÅÄÄÄÙ ³

                               Switch cable connection ³     ³

                                      Factory Use Only ÄÄÄÄÄÄÙ

                             ST-41650N

                             WREN 8 FH

       UNFORMATTED CAPACITY (MB) ________________1,650

       FORMATTED CAPACITY (xx SECTORS) (MB) _____1,415

       AVERAGE SECTORS PER TRACK (with spares)___87

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________31,605

       CYLINDERS ________________________________2,107

       HEADS ____________________________________15

       DISCS ____________________________________8

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______17 to 32

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________256 Kbyte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2

       BYTES PER TRACK __________________________54,900 avg.

       TPI (TRACKS PER INCH) ____________________1,760

       BPI (BITS PER INCH) ______________________

       AVERAGE ACCESS (ms) ______________________15

       SINGLE TRACK SEEK (ms) ___________________2.5

       MAX FULL SEEK (ms) _______________________34

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _4.5

                           +12V TYPICAL (amps) __1.5

                           +5V START-UP (amps) __0.8

                           +5V TYPICAL (amps) ___0.6

                           TYPICAL (watts) ______21

                           MAXIMUM (watts) ______58

       BUFFERED STEP PULSE RATE (micro sec) _____

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

Already low-level formatted at the factory with one spare sector

per track and two spare cylinders/unit.

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-41651N
ST-41651N  Wren 8 FH SCSI-2 Fast

20-pin (2x10) configuration jumper-block version

                        Ú Synchronous Spindles option         DC

                        ³                                     Power

                        ³   ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\

      ÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍµ:SCSI:Cable:::::::::::::::::1ÆÍµ 0 0 0 0 ÆÍÍ

      ÚÄ¿             ÚÄÁÄ¿ ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù

      ³o³o o o o o o o³o o³   ÚÄÄÄÄÄÄ1 ÚÄÄÄÄÄÄ1 ÚÄÄÄÄÄÄ1

      ÅoÅo o o o o o o³o o³   ÀÄÄÄÄÄÄÙ ÀÄÄÄÄÄÄÙ ÀÄÄÄÄÄÄÙ

      ÀÄÙ  4 2 1      ÀÄÄÄÙ     Terminator SIPS

       ³ ³ ÄÄÂÄÄ ³ ³ ³

       ³ ³   ³   ³ ³ ÀÄ Motor Start Delay (16 secs * ID)

       ³ ³   ³   ³ ÀÄÄÄ Parity check enable

       ³ ³   ³   ÀÄÄÄÄÄ Motor Start option enable

       ³ ³   ÀÄÄÄÄÄÄÄÄÄ Drive ID's, ID 0 (none) if only SCSI device

       ³ ÀÄÄÄÄÄÄÄÄÄÄÄÄÄ Terminator power to the Bus (vertical)

       ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅ Terminator power from Drive, default (vertical)

                      ³ Terminator power from Bus (lower horizontal)

16-pin (2x8) configuration jumper-block version

        Ú Synchronous Spindles option                         DC

        ³                                                     Power

        ³                   ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\

      ÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍµ:SCSI:Cable:::::::::::::::::1ÆÍµ 0 0 0 0 ÆÍÍ

      ÚÄÁÄ¿                 ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù

      ³o o³o o o o o o        ÚÄÄÄÄÄÄ1 ÚÄÄÄÄÄÄ1 ÚÄÄÄÄÄÄ1  ÚÄ¿

      ³o o³o o o o o o        ÀÄÄÄÄÄÄÙ ÀÄÄÄÄÄÄÙ ÀÄÄÄÄÄÄÙ  ³o³o

      À1ÄÄÙ4 2 1 M P            Terminator SIPS           ÅoÅoÄ¿

           ÄÄÂÄÄ ³ ³ ³                                    ÀÅÙ³ ³

             ³   ³ ³ ÀÄ Motor Start Delay (16 secs * ID)   ³ ³ ³

             ³   ³ ÀÄÄÄ Parity check enable                ³ ³ ³

             ³   ÀÄÄÄÄÄ Motor Start option enable          ³ ³ ³

             ÀÄÄÄÄÄÄÄÄÄ Drive ID's, ID 0 (none) if         ³ ³ ³

                         only SCSI device                  ³ ³ ³

                                                           ³ ³ ³

         Terminator power from Drive, default (vertical) ÄÄÙ ³ ³

                  Terminator power to the Bus (vertical) ÄÄÄÄÙ ³

            Terminator power from Bus (lower horizontal) ÄÄÄÄÄÄÙ

Both versions:

           LED

          ÚÄÄÄ¿      (Viewed from front of drive)          Ú GND

          ³ 0 ³                                            ³

      ÍÍÍÍÏÍÍÍÏÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍ

                                                         o o o  J6

                                         pin-1 (+5v) ----o o o

                                                         ³ ³ ³

                                 Remote LED connection ÄÄÙ ³ ³

                                  Write Protect Remote ÅÄÄÄÙ ³

                               Switch cable connection ³     ³

                                      Factory Use Only ÄÄÄÄÄÄÙ

                             ST-41651N

                             WREN 8 FH

       UNFORMATTED CAPACITY (MB) ________________1,650

       FORMATTED CAPACITY (xx SECTORS) (MB) _____1,415*

       AVERAGE SECTORS PER TRACK (with spares)___87

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________31,605

       CYLINDERS ________________________________2,107 (user)

       HEADS ____________________________________15

       DISCS (5.25 in) __________________________8

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______17 to 32

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______10.0 Sync.

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________256 Kbyte

         Read Look-Ahead, Adaptive, Multi-

         Segmented Cache

       INTERFACE ________________________________SCSI-2 Fast

       BYTES PER TRACK __________________________54,900 avg.

       SECTORS PER DRIVE ________________________2,749,635

       TPI (TRACKS PER INCH) ____________________1,760

       BPI (BITS PER INCH) ______________________

       AVERAGE ACCESS (ms) ______________________15

       SINGLE TRACK SEEK (ms) ___________________2.5

       MAX FULL SEEK (ms) _______________________34

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _4.5

                           +12V TYPICAL (amps) __1.5

                           +5V START-UP (amps) __0.8

                           +5V TYPICAL (amps) ___0.6

                           TYPICAL (watts) ______21

                           MAXIMUM (watts) ______58

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

* Already low-level formatted at the factory with one spare sector per

track and two spare cylinders/unit.

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/31/91)


ST-4182N
ST-4182N (94161-182) Wren 3 FH SCSI

(3 by 5 configuration jumper block)

         ÚÄÄÄÄÄ Motor Start Option enable (horizontal)

         ³   ÚÄ N/A

         ³   ³     ÚÄ Terminator Power from Bus

        oÁo xÁx  oÄ³  (upper 2 pins)               Ú12ÄGÄGÄ5Ä¿ ÚÄÄÄÄÄÄÄÄ¿

        o o o o ÚoÂÙ  ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸  ³ 0 0 0 0 ³ ³Terminator

        o o o o ³o³   ³:::SCSI:Cable:::::::::::1³  \ÄÄÄÄÄÄÄÄÄ/ ÀÄÄÄÄÄÄÄÄÙ

   ÍÍÍÍÍ4Í2Í1ÍPÍÏTÏÍÍÍÏÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

   ÍÍÍÍÍØÍØÍØÍØÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

        ÀÄÅÄÙ ³  ³

          ³   ³  À Terminator Power (+5v) from drive (lower 2 pins)

          ³   ÀÄÄÄ Parity Check Option Enable (vertical)

          ÀÄÄÄÄÄÄÄ Drive Select ID's (vertical)

(2 by 7 configuration jumper block)

                           1¿           1¿ 1¿

     Terminator Power      ³³--T-Res -- ³³ ³³

   from Bus (horizontal)   ³³  (3 ea)   ³³ ³³

                  ³        ÀÙ           ÀÙ ÀÙ      Ú12ÄGÄGÄ5Ä¿

       o o o o o oÁo  ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸  ³ 0 0 0 0 ³

       o o o o o x o  ³:::SCSI:Cable:::::::::::1³  \ÄÄÄÄÄÄÄÄÄ/

      ÍMÍ4Í2Í1ÍPÍTÍTÍÍÏÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÏÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

      ÍØÍØÍØÍØÍØÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ

       ³ ÀÄÅÄÙ ³   ³

       ³   ³   ³   ÀÄ Terminator Power (+5v) from drive (lower 2 pins)

       ³   ³   ÀÄÄÄÄÄ Parity Check Option Enable (vertical)

       ³   ÀÄÄÄÄÄÄÄÄÄ Drive Select ID's (vertical)

       ÀÄÄÄÄÄÄÄÄÄÄÄÄÄ Motor Start Option enable

                             ST-4182N

                        94161-182 WREN 3 FH

       UNFORMATTED CAPACITY (MB) ________________182

       FORMATTED CAPACITY (35 SECTORS) (MB) _____155

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________8,721

       CYLINDERS ________________________________969

       HEADS ____________________________________9

       DISCS ____________________________________5

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       TRANSFER RATE (mbytes/sec) _______________1.25

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________8 or 32 Kbyte

         8 Kbyte: FIFO, Non-Adaptive,

          Single-Segmented Buffer

         32 Kbyte: Read Look-Ahead, Non-Adaptive,

          Single-Segmented Buffer

       INTERFACE ________________________________SCSI

       TPI (TRACKS PER INCH) ____________________960

       BPI (BITS PER INCH) ______________________19,058

       AVERAGE ACCESS (ms) ______________________16.5

       SINGLE TRACK SEEK (ms) ___________________4

       MAX FULL SEEK (ms) _______________________40

       MTBF (power-on hours) ____________________100,000

       POWER REQUIREMENTS: +12V START-UP (amps) _4.5

                           +12V TYPICAL (amps) __1.5

                           +5V START-UP (amps) __1.7

                           +5V TYPICAL (amps) ___1.3

                           TYPICAL (watts) ______24

                           MAXIMUM (watts) ______63

       BUFFERED STEP PULSE RATE (micro sec) _____N/A

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

Already low-level formatted at the factory.

Seagate reserves the right to change, without notice, product

offerings or specifications. (9/10/93)


ST-42000N
ST-42000N  Elite 2 Fast SCSI-2

     Spindle Sync ¿                  ÚÄ Terminator Power Source (see below)ÄÄ¿

                Ú4ÄÄ1ÄÄ¿  ÚÄÄÄÄÄÄ1 4o³o3 ÚÄÄÄÄÄÄ1                            ³

               p³o oo  A  ÀÄ³ÄÄÄÄÙ 2o o1 ÀÄÄ³ÄÄÄÙ                            ³

     o o o o o n³o oo  B    ÀTerminator SIPSÙ           Power    o o o o     ³

     o o o o o  ÀÄÄÄÄÄÄÙÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸  Ú12ÄGÄGÄ5Ä¿ o o o o     ³

    ÍØÍØÍØÍØÍØÍÍPÍWÍAÍÍÍµ::::::::::::::::::::::::1ÆÍÍµ 0 0 0 0 ÆÍØÍØÍØÍØÍÍ   ³

     4 2 1 ³ ³          ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾  \ÄÄÄÄÄÄÄÄÄ/ ³ ³ ³ ³     ³

     ÄÄÂÄÄ ³ ³             SCSI Cable Connector                  ³ ³ ³ ³     ³

       ³   ³ ³                                                   ³ ³ ³ ³     ³

       ³   ³ ÀÄÄ Master off/Slave on - Spindle Sync              ³ ³ ³ ³     ³

       ³   ÀÄÄÄÄ Write Protect option enable                     ³ ³ ³ ³     ³

       ÀÄÄÄÄÄÄÄÄ SCSI ID                                         ³ ³ ³ ³     ³

                                    Spinup Delay (10 secs * ID) ÄÙ ³ ³ ³     ³

                                      Motor Start option enable ÄÄÄÙ ³ ³     ³

                                           Parity check DISable ÄÄÄÄÄÙ ³     ³

                                             Sweep Cycle enable ÄÄÄÄÄÄÄÙ     ³

                                                                             ³

 ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸                                        ³

 ³  Terminator Power Source Options ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

 ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

 ³  2 & 4 Ä Initiator supplies power over the SCSI Bus for terminators. ³

 ³            Drive supplies no terminator power.                       ³

 ³  1 & 2 Ä Drive supplies power for its own terminator resistor-paks   ³

 ³            but not to SCSI Bus.  This is the factory setting.        ³

 ³  1 & 3                                                               ³

 ³   AND  Ä Drive supplies power fpr external terminator at end of the  ³

 ³  2 & 4     daisy chain. Terminator resistor-paks must be removed.    ³

 ³            This option is recommended only for last drive on daisy   ³

 ³            chain.                                                    ³

 ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

    T-RES descriptions: ST42000N   2 SIPs

                        ST42000ND  2 DIPs

                             ST-42000N

                              Elite 2

       UNFORMATTED CAPACITY _____________________2,106,263,040

       FORMATTED CAPACITY (512 byte blk) ________1,792,111,616

       AVERAGE SECTORS PER TRACK ________________83

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________41,984

       CYLINDERS ________________________________2,627/2,624 (user)

       HEADS ____________________________________16

       DISCS (5.25 in) __________________________9

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (2,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______30-40

       EXTERNAL TRANSFER RATE (mbyte/sec) _______10 (burst)

       SPINDLE SPEED (RPM) ______________________5,400

       AVERAGE LATENCY (mSEC) ___________________5.55

       COMMAND OVERHEAD (mSEC) __________________<0.5

       BUFFER ___________________________________256 Kbyte

         Read Look-Ahead, Adaptive, Multi-Segmented

         Cache

       INTERFACE ________________________________SCSI-2 FAST

       BYTES PER TRACK __________________________42,000-55,440

       SECTORS PER DRIVE ________________________3,500,218

       BYTES PER CYLINDER _______________________672,000-887,040

       TPI (TRACKS PER INCH) ____________________2,250

       BPI (BITS PER INCH) ______________________41,713

       AVERAGE ACCESS (ms) ______________________11

       SINGLE TRACK SEEK (ms) ___________________1.7

       MAX FULL SEEK (ms) _______________________22.5

       MTBF (power-on hours) Class A Room _______250,000

       MTBF (power-on hours) Office _____________150,000

       POWER REQUIREMENTS: Single ended/Differential

                           +12V START-UP (amps) _4.6/4.6

                           +12V TYPICAL (amps) __2.0/2.0

                           +5V START-UP (amps) __2.3/2.6

                           +5V TYPICAL (amps) ___2.3/2.6

                           TYPICAL (watts) ______29.9/31.8

                           MAXIMUM (watts) ______33.7/36.6

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________Auto

       USER MANUAL PART NUMBER __________________

       OTHER ____________________________________

        Synchronized Spindles, Sweep Cycle Capability

ZBR = Zone Bit Recording = Variable sectors per track

** Already low-level formatted at the factory with six spare sectors

per cylinder, one spare cylinders/unit, one system cylinder/unit, and

one diagnostic cylinder/unit.

       Physical:

                        Height (inches/mm):     3.25/82.6

                        Width  (inches/mm):     5.75/146.1

                        Depth  (inches/mm):     8.0/203

                        Weight    (lbs/kg):     7.8/3.6

Seagate reserves the right to change, without notice, product

offerings or specifications. (01/03/96)


ST-42100N
ST-42100N  Wren 9 FH SCSI-2 Fast

                        Ú Synchronous Spindles option         DC

                        ³                                     Power

                        ³   ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\

      ÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍµ:SCSI:Cable:::::::::::::::::1ÆÍµ 0 0 0 0 ÆÍÍ

      ÚÄ¿             ÚÄÁÄ¿ ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù

      ³o³o o o o o o o³o+o³   ÚÄÄÄÄÄÄ1 ÚÄÄÄÄÄÄ1 ÚÄÄÄÄÄÄ1

      ÅoÅo o o o o o o³o-o³   ÀÄÄÄÄÄÄÙ ÀÄÄÄÄÄÄÙ ÀÄÄÄÄÄÄÙ

      À1Ù  4 2 1      ÀÄÄÄÙ     Terminator SIPS

       ³ ³ ÄÄÂÄÄ ³ ³ ³

       ³ ³   ³   ³ ³ ÀÄ Motor Start Delay (16 secs * ID)

       ³ ³   ³   ³ ÀÄÄÄ Parity check enable

       ³ ³   ³   ÀÄÄÄÄÄ Motor Start option enable

       ³ ³   ÀÄÄÄÄÄÄÄÄÄ Drive ID's, ID 0 (none) if only SCSI device

       ³ ÀÄÄÄÄÄÄÄÄÄÄÄÄÄ Terminator power to the Bus (vertical)

       ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅ Terminator power from Drive, default (vertical)

                      ³ Terminator power from Bus (lower horizontal)

           LED

          ÚÄÄÄ¿      (Viewed from front of drive)          Ú GND

          ³ 0 ³                                            ³

      ÍÍÍÍÏÍÍÍÏÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍ

                                                         o o o  J6

                                         pin-1 (+5v) ----o o o

                                                         ³ ³ ³

                                 Remote LED connection ÄÄÙ ³ ³

                                  Write Protect Remote ÅÄÄÄÙ ³

                               Switch cable connection ³     ³

                                      Factory Use Only ÄÄÄÄÄÄÙ

                             ST-42100N

                             WREN 9 FH

       UNFORMATTED CAPACITY (MB) ________________2,200

       FORMATTED CAPACITY (xx SECTORS) (MB) _____1,900*

       AVERAGE SECTORS PER TRACK (with spares)___96

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________38,595

       CYLINDERS ________________________________2,573 (user)

       HEADS ____________________________________15

       DISCS (5.25 inch) ________________________8

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______20 to 31

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______10.0 Sync.

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________256 Kbyte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 Fast

       BYTES PER TRACK __________________________57,200 avg.

       SECTORS PER DRIVE ________________________3,705,120

       TPI (TRACKS PER INCH) ____________________2,150

       BPI (BITS PER INCH) ______________________

       AVERAGE ACCESS (ms) ______________________12.95

       SINGLE TRACK SEEK (ms) ___________________2

       MAX FULL SEEK (ms) _______________________29

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _4.5

                           +12V TYPICAL (amps) __1.5

                           +5V START-UP (amps) __0.8

                           +5V TYPICAL (amps) ___0.6

                           TYPICAL (watts) ______21

                           MAXIMUM (watts) ______58

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

 * 512 bytes per sector, one spare sector per track,

   two spare cylinders per unit.

Already low-level formatted at the factory.

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/31/91)


ST-42101N
ST-42101N  Wren 9 FH SCSI-2 Fast Wide

                        Ú Synchronous Spindles option         DC

                        ³                                     Power

                        ³   ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\

      ÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍµ:SCSI:Cable:::::::::::::::::1ÆÍµ 0 0 0 0 ÆÍÍ

      ÚÄ¿             ÚÄÁÄ¿ ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù

      ³o³o o o o o o o³o+o³   ÚÄÄÄÄÄÄ1 ÚÄÄÄÄÄÄ1 ÚÄÄÄÄÄÄ1

      ÅoÅo o o o o o o³o-o³   ÀÄÄÄÄÄÄÙ ÀÄÄÄÄÄÄÙ ÀÄÄÄÄÄÄÙ

      À1Ù  4 2 1      ÀÄÄÄÙ     Terminator SIPS

       ³ ³ ÄÄÂÄÄ ³ ³ ³

       ³ ³   ³   ³ ³ ÀÄ Motor Start Delay (16 secs * ID)

       ³ ³   ³   ³ ÀÄÄÄ Parity check enable

       ³ ³   ³   ÀÄÄÄÄÄ Motor Start option enable

       ³ ³   ÀÄÄÄÄÄÄÄÄÄ Drive ID's, ID 0 (none) if only SCSI device

       ³ ÀÄÄÄÄÄÄÄÄÄÄÄÄÄ Terminator power to the Bus (vertical)

       ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅ Terminator power from Drive, default (vertical)

                      ³ Terminator power from Bus (lower horizontal)

           LED

          ÚÄÄÄ¿      (Viewed from front of drive)          Ú GND

          ³ 0 ³                                            ³

      ÍÍÍÍÏÍÍÍÏÍÍÍÍÍÍÍÍÍÍÍÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍØÍÍÍÍÍÍÍÍÍÍÍÍ

                                                         o o o  J6

                                         pin-1 (+5v) ----o o o

                                                         ³ ³ ³

                                 Remote LED connection ÄÄÙ ³ ³

                                  Write Protect Remote ÅÄÄÄÙ ³

                               Switch cable connection ³     ³

                                      Factory Use Only ÄÄÄÄÄÄÙ

                             ST-42100N

                             WREN 9 FH

       UNFORMATTED CAPACITY (MB) ________________2,200

       FORMATTED CAPACITY (xx SECTORS) (MB) _____1,900

       AVERAGE SECTORS PER TRACK (with spares)___96

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________38,595

       CYLINDERS ________________________________2,573

       HEADS ____________________________________15

       DISCS (5.25 in) __________________________8

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______20 to 31

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______20.0 Sync. (16 bit)

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________256 Kbyte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2 Fast Wide

       SECTORS PER DRIVE ________________________3,705,120

       TPI (TRACKS PER INCH) ____________________2,150

       BPI (BITS PER INCH) ______________________

       AVERAGE ACCESS (ms) ______________________12.95

       SINGLE TRACK SEEK (ms) ___________________2

       MAX FULL SEEK (ms) _______________________29

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _4.5

                           +12V TYPICAL (amps) __1.5

                           +5V START-UP (amps) __0.8

                           +5V TYPICAL (amps) ___0.6

                           TYPICAL (watts) ______23

                           MAXIMUM (watts) ______

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

Already low-level formatted at the factory with one spare sector

per track and two spare cylinders/unit.

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/31/91)


ST-423451N
ST-423451N Ultra-SCSI (Elite 23)

                                        J01

                                     ÚÄ Terminator Power Source (see below)ÄÄ¿

                                   2o³o4                                     ³

J4A                                1o o3                                J4B  ³

   o o o o o o  A R o  o                                Power    o o o o     ³

   o o o o o o  g F o  o ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸ Ú12ÄGÄGÄ5Ä¿ o o o o     ³

  Í1ÍØÍØÍØÍØÍØÍÍØÍØÍØÍÍØÍµ::::::::::::::::::::::::1ÆÍµ 0 0 0 0 ÆÍ1ÍØÍØÍØÍÍ   ³

   ³ 4 2 1 ³ ³  ÃÄÙ ³  ³ ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ \ÄÄÄÄÄÄÄÄÄ/ ³ ³ ³ ³     ³

   ³ ÄÄÂÄÄ ³ ³  ³   ³  ³    SCSI Cable Connector                 ³ ³ ³ ³     ³

   ³   ³   ³ ³  ³   ³  ³                                         ³ ³ ³ ³     ³

   ³   ³   ³ ³  ³   ³  ÀÄÄ Spindle Synch Cable Connector         ³ ³ ³ ³     ³

   ³   ³   ³ ³  ³   ³        (top pin: SSREF, bottom: ground)    ³ ³ ³ ³     ³

   ³   ³   ³ ³  ³   ÀÄÄÄÄÄ Terminator Enable (N&W models only)   ³ ³ ³ ³     ³

   ³   ³   ³ ³  ÀÄÄÄÄÄÄÄÄÄ LED Connection (g: ground pin)        ³ ³ ³ ³     ³

   ³   ³   ³ ³                 Activity (A-G)                    ³ ³ ³ ³     ³

   ³   ³   ³ ³                    Ready (R-G)                    ³ ³ ³ ³     ³

   ³   ³   ³ ³                    Fault (F-G)                    ³ ³ ³ ³     ³

   ³   ³   ³ ÀÄ Reserved                                         ³ ³ ³ ³     ³

   ³   ³   ÀÄÄÄ Write Protect Enable              Spinup Delay  ÄÙ ³ ³ ³     ³

   ³   ÀÄÄÄÄÄÄÄ SCSI ID                          (12 secs * ID)    ³ ³ ³     ³

   ÀÄÄÄÄÄÄÄÄÄÄÄ Reserved              Motor Start option enable ÄÄÄÙ ³ ³     ³

                                           Parity check DISable ÄÄÄÄÄÙ ³     ³

                                                       Reserved ÄÄÄÄÄÄÄÙ     ³

 ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸                                        ³

 ³  Terminator Power Source Options ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

 ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

 ³  1 & 2 Ä Drive supplies power for its own terminator resistor-paks   ³

 ³            but not to SCSI Bus.  This is the factory setting.        ³

 ³  1 & 3 Ä Initiator supplies power over the SCSI Bus for terminators. ³

 ³            Drive supplies no terminator power.                       ³

 ³  1 & 3                                                               ³

 ³   AND  Ä Drive supplies power for external terminator at end of the  ³

 ³  2 & 4     daisy chain. Terminator resistor-paks must be removed.    ³

 ³            This option is recommended only for last drive on daisy   ³

 ³            chain.                                                    ³

 ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

                             ST-423451N

                              Elite 23

       UNFORMATTED CAPACITY _____________________29,600

       FORMATTED CAPACITY (512 byte blk) ________23,400

       AVERAGE SECTORS PER TRACK ________________237 (rounded down)

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________192,640

       CYLINDERS ________________________________6880

       HEADS ____________________________________28

       DISCS (5.25 in) __________________________14

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________MR

       RECORDING METHOD _________________________ZBR PRML (0,4,4)

       INTERNAL TRANSFER RATE (mbits/sec) _______85.9 to 123

       INTERNAL TRANSFER RATE AVG (mbyte/sec) ___

       EXTERNAL TRANSFER RATE (mbyte/sec) _______20 (burst)

       SPINDLE SPEED (RPM) ______________________5,400

       AVERAGE LATENCY (mSEC) ___________________5.55

       COMMAND OVERHEAD (mSEC) __________________<0.5

       BUFFER ___________________________________2048 Kbyte

         Read Look-Ahead, Adaptive, Multi-Segmented

         Cache

       INTERFACE ________________________________Ultra-SCSI

                                                 ASA2

       BYTES PER TRACK __________________________

       SECTORS PER DRIVE ________________________45,703,125

       BYTES PER CYLINDER _______________________

       TPI (TRACKS PER INCH) ____________________

       BPI (BITS PER INCH) ______________________

       AVERAGE ACCESS (ms) read/write ___________13.2/14.0

         Not including on-board controller

         overhead.

       SINGLE TRACK SEEK (ms) read/write ________1.1/2.1

       MAX FULL SEEK (ms) read/write ____________28/

       MTBF (power-on hours) Class A Room _______NA

       MTBF (power-on hours) Office _____________800,000

       POWER DISSIPATION (watts/BTUs) Active ____

                                      Idle ______

       POWER REQUIREMENTS: Single-ended/Differential

                           +12V START-UP (amps) _4.8/4.8

                           +12V TYPICAL (amps) __1.6/1.6

                           +5V START-UP (amps) __1.0/1.05

                           +5V TYPICAL (amps) ___.98/1.2

                      TYPICAL ( watts seek/read)_27.2

                      IDLE (watts) ______________22

       USER MANUAL PART NUMBER __________________

** Already low-level formatted at the factory with 6 cylinders per

region and 82 spares per region.

       Physical:

                        Height (inches/mm):     3.25/82.6

                        Width  (inches/mm):     5.75/146.1

                        Depth  (inches/mm):     8.0/203

                        Weight    (lbs/kg):     8.1/3.7

Seagate reserves the right to change, without notice, product

offerings or specifications. (09/18/96)


ST-423451N
ST-423451W Ultra-SCSI Wide (Elite 23)

                                        J01

                                     ÚÄ Terminator Power Source (see below)ÄÄ¿

                                   2o³o4                                     ³

J4A                                1o o3                                J4B  ³

   o o o o o o  A R o  o                                Power    o o o o     ³

   o o o o o o  g F o  o    ___________________      Ú12ÄGÄGÄ5Ä¿ o o o o     ³

  Í1ÍØÍØÍØÍØÍØÍÍØÍØÍØÍÍØÍÍÍ( ×××××××××××××××××1)ÍÍÍÍÍµ 0 0 0 0 ÆÍ1ÍØÍØÍØÍÍ   ³

   8 4 2 1 ³ ³  ÃÄÙ ³  ³    \ÄÄÄÄÄÄÄÄÄÄÄÄ³ÄÄÄÄ/      \ÄÄÄÄÄÄÄÄÄ/ ³ ³ ³ ³     ³

   ÄÄÄÂÄÄÄ ³ ³  ³   ³  ³ SCSI Cable Connector 68-pin             ³ ³ ³ ³     ³

      ³    ³ ³  ³   ³  ³                                         ³ ³ ³ ³     ³

      ³    ³ ³  ³   ³  ÀÄÄ Spindle Synch Cable Connector         ³ ³ ³ ³     ³

      ³    ³ ³  ³   ³        (top pin: SSREF, bottom: ground)    ³ ³ ³ ³     ³

      ³    ³ ³  ³   ÀÄÄÄÄÄ Terminator Enable (N&W models only)   ³ ³ ³ ³     ³

      ³    ³ ³  ÀÄÄÄÄÄÄÄÄÄ LED Connection (g: ground pin)        ³ ³ ³ ³     ³

      ³    ³ ³                 Activity (A-G)                    ³ ³ ³ ³     ³

      ³    ³ ³                    Ready (R-G)                    ³ ³ ³ ³     ³

      ³    ³ ³                    Fault (F-G)                    ³ ³ ³ ³     ³

      ³    ³ ÀÄ Reserved                                         ³ ³ ³ ³     ³

      ³    ÀÄÄÄ Write Protect Enable              Spinup Delay  ÄÙ ³ ³ ³     ³

      ÀÄÄÄÄÄÄÄÄ SCSI ID                          (12 secs * ID)    ³ ³ ³     ³

                                      Motor Start option enable ÄÄÄÙ ³ ³     ³

                                           Parity check DISable ÄÄÄÄÄÙ ³     ³

                                                       Reserved ÄÄÄÄÄÄÄÙ     ³

 ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸                                        ³

 ³  Terminator Power Source Options ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

 ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

 ³  1 & 2 Ä Drive supplies power for its own terminator resistor-paks   ³

 ³            but not to SCSI Bus.  This is the factory setting.        ³

 ³  1 & 3 Ä Initiator supplies power over the SCSI Bus for terminators. ³

 ³            Drive supplies no terminator power.                       ³

 ³  1 & 3                                                               ³

 ³   AND  Ä Drive supplies power for external terminator at end of the  ³

 ³  2 & 4     daisy chain. Terminator resistor-paks must be removed.    ³

 ³            This option is recommended only for last drive on daisy   ³

 ³            chain.                                                    ³

 ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

        ST423451WD drives do not have internal terminators or any

        other way of adding internal terminators to the drive. Use

        external differential termination when required.

                             ST-423451W

                              Elite 23

       UNFORMATTED CAPACITY _____________________29,600

       FORMATTED CAPACITY (512 byte blk) ________23,400

       AVERAGE SECTORS PER TRACK ________________237 (rounded down)

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________192,640

       CYLINDERS ________________________________6880

       HEADS ____________________________________28

       DISCS (5.25 in) __________________________14

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________MR

       RECORDING METHOD _________________________ZBR PRML (0,4,4)

       INTERNAL TRANSFER RATE (mbits/sec) _______85.9 to 123

       INTERNAL TRANSFER RATE AVG (mbyte/sec) ___

       EXTERNAL TRANSFER RATE (mbyte/sec) _______40 (burst)

       SPINDLE SPEED (RPM) ______________________5,400

       AVERAGE LATENCY (mSEC) ___________________5.55

       COMMAND OVERHEAD (mSEC) __________________<0.5

       BUFFER ___________________________________2048 Kbyte

         Read Look-Ahead, Adaptive, Multi-Segmented

         Cache

       INTERFACE ________________________________Ultra-SCSI Wide

                                                 ASA2

       BYTES PER TRACK (avg UNF) ________________145,263

       SECTORS PER DRIVE ________________________45,703,125

       BYTES PER CYLINDER _______________________

       TPI (TRACKS PER INCH) ____________________

       BPI (BITS PER INCH) ______________________

       AVERAGE ACCESS (ms) read/write ___________13.2/14.2

       SINGLE TRACK SEEK (ms) read/write ________1.1/2.1

       MAX FULL SEEK (ms) read/write ____________28/

       MTBF (power-on hours) Class A Room _______NA

       MTBF (power-on hours) Office _____________800,000

       POWER DISSIPATION (watts/BTUs) Active ____

                                      Idle ______

       POWER REQUIREMENTS: Single-ended/Differential

                           +12V START-UP (amps) _4.8/4.8

                           +12V TYPICAL (amps) __1.6/1.6

                           +5V START-UP (amps) __1.0/1.05

                           +5V TYPICAL (amps) ___.9

                      TYPICAL ( watts seek/read)_27.2

                      IDLE (watts) ______________22

       USER MANUAL PART NUMBER __________________

** Already low-level formatted at the factory with 6 cylinders per

region and 82 spares per region.

       Physical:

                        Height (inches/mm):     3.25/82.6

                        Width  (inches/mm):     5.75/146.1

                        Depth  (inches/mm):     8.0/203

                        Weight    (lbs/kg):     8.1/3.7

Seagate reserves the right to change, without notice, product

offerings or specifications. (09/18/96)


ST-42400N
ST-42400N  Elite 2 Fast SCSI-2

    Spindle Sync ¿                  ÚÄ Terminator Power Source (see below)ÄÄ¿

               Ú4ÄÄ1ÄÄ¿  ÚÄÄÄÄÄÄ1 4o³o3 ÚÄÄÄÄÄÄ1                            ³

               ³o oo  A  ÀÄ³ÄÄÄÄÙ 2o o1 ÀÄÄ³ÄÄÄÙ                            ³

    o o o o o  ³o oo  B    ÀTerminator SIPSÙ           Power    o o o o     ³

    o o o o o  ÀÄÄÄÄÄÄÙÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸  Ú12ÄGÄGÄ5Ä¿ o o o o     ³

   ÍØÍØÍØÍØÍØÍÍPÍWÍAÍÍÍµ::::::::::::::::::::::::1ÆÍÍµ 0 0 0 0 ÆÍØÍØÍØÍØÍÍ   ³

    4 2 1 ³ ³          ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾  \ÄÄÄÄÄÄÄÄÄ/ ³ ³ ³ ³     ³

    ÄÄÂÄÄ ³ ³             SCSI Cable Connector                  ³ ³ ³ ³     ³

      ³   ³ ³                                                   ³ ³ ³ ³     ³

      ³   ³ ÀÄÄ Master off/Slave on - Spindle Sync              ³ ³ ³ ³     ³

      ³   ÀÄÄÄÄ Write Protect option enable                     ³ ³ ³ ³     ³

      ÀÄÄÄÄÄÄÄÄ SCSI ID                                         ³ ³ ³ ³     ³

                                   Spinup Delay (10 secs * ID) ÄÙ ³ ³ ³     ³

                                     Motor Start option enable ÄÄÄÙ ³ ³     ³

                                          Parity check DISable ÄÄÄÄÄÙ ³     ³

                                            Sweep Cycle enable ÄÄÄÄÄÄÄÙ     ³

                                                                            ³

ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸                                        ³

³  Terminator Power Source Options ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

³  2 & 4 Ä Initiator supplies power over the SCSI Bus for terminators. ³

³            Drive supplies no terminator power.                       ³

³  1 & 2 Ä Drive supplies power for its own terminator resistor-paks   ³

³            but not to SCSI Bus.  This is the factory setting.        ³

³  1 & 3                                                               ³

³   AND  Ä Drive supplies power for external terminator at end of the  ³

³  2 & 4     daisy chain. Terminator resistor-paks must be removed.    ³

³            This option is recommended only for last drive on daisy   ³

³            chain.                                                    ³

ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

    T-RES descriptions: ST42400N   2 SIPs

                        ST42400ND  2 DIPs

                             ST-42400N

                              Elite 2

       UNFORMATTED CAPACITY _____________________2,501,187,360

       FORMATTED CAPACITY (512 byte blk) ________2,129,644,544

       AVERAGE SECTORS PER TRACK ________________83

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________49,913

       CYLINDERS ________________________________2,627/2,624 (user)

       HEADS ____________________________________19

       DISCS (5.25 in) __________________________11

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (2,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______30-40

       EXTERNAL TRANSFER RATE (mbyte/sec) _______10 (burst)

       SPINDLE SPEED (RPM) ______________________5,400

       AVERAGE LATENCY (mSEC) ___________________5.55

       COMMAND OVERHEAD (mSEC) __________________<0.5

       BUFFER ___________________________________256 Kbyte

         Read Look-Ahead, Adaptive, Multi-Segmented

         Cache

       INTERFACE ________________________________SCSI-2 FAST

       BYTES PER TRACK __________________________42,000-55,440

       SECTORS PER DRIVE ________________________4,159,462

       BYTES PER CYLINDER _______________________798,000-1,053,360

       TPI (TRACKS PER INCH) ____________________2,250

       BPI (BITS PER INCH) ______________________41,713

       AVERAGE ACCESS (ms) ______________________11

       SINGLE TRACK SEEK (ms) ___________________1.7

       MAX FULL SEEK (ms) _______________________22.5

       MTBF (power-on hours) Class A Room _______250,000

       MTBF (power-on hours) Office _____________150,000

       POWER DISSIPATION (watts) ________________33

       POWER REQUIREMENTS:

                           +12V START-UP (amps) _

                           +12V TYPICAL (amps) __

                           +5V START-UP (amps) __

                           +5V TYPICAL (amps) ___

                           TYPICAL (watts) ______33

                           IDLE (watts) _________30

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________Auto

       USER MANUAL PART NUMBER __________________

       OTHER ____________________________________

        Synchronized Spindles, Sweep Cycle Capability

ZBR = Zone Bit Recording = Variable sectors per track

** Already low-level formatted at the factory with six spare sectors

per cylinder, one spare cylinders/unit, one system cylinder/unit, and

one diagnostic cylinder/unit.

       Physical:

                        Height (inches/mm):     3.25/82.6

                        Width  (inches/mm):     5.75/146.1

                        Depth  (inches/mm):     8.0/203

                        Weight    (lbs/kg):     7.8/3.6

Seagate reserves the right to change, without notice, product

offerings or specifications. (01/03/96)


ST-43400N
ST-43400N  Elite 3 Fast SCSI-2

                             ÚÄÄ (see below for T-RES descriptions)

     Spindle Sync ¿          ³       ÚÄ Terminator Power Source (see below)ÄÄ¿

                Ú4ÄÄ1ÄÄ¿  ÚÄÄÄÄÄÄ1 4o³o3 ÚÄÄÄÄÄÄ1                            ³

               p³o oo  A  ÀÄÄÄÄÄÄÙ 2o o1 ÀÄÄÄÄÄÄÙ                            ³

     o o o o o n³o oo  B                                Power    o o o o     ³

     o o o o o  ÀÄÄÄÄÄÄÙÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸  Ú12ÄGÄGÄ5Ä¿ o o o o     ³

    ÍØÍØÍØÍØÍØÍÍPÍWÍAÍÍÍµ::::::::::::::::::::::::1ÆÍÍµ 0 0 0 0 ÆÍØÍØÍØÍØÍÍ   ³

     4 2 1 ³ ³          ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾  \ÄÄÄÄÄÄÄÄÄ/ ³ ³ ³ ³     ³

     ÄÄÂÄÄ ³ ³             SCSI Cable Connector                  ³ ³ ³ ³     ³

       ³   ³ ³                                                   ³ ³ ³ ³     ³

       ³   ³ ÀÄÄ Master off/Slave on - Spindle Sync              ³ ³ ³ ³     ³

       ³   ÀÄÄÄÄ Write Protect option enable                     ³ ³ ³ ³     ³

       ÀÄÄÄÄÄÄÄÄ SCSI ID                                         ³ ³ ³ ³     ³

                                    Spinup Delay (10 secs * ID) ÄÙ ³ ³ ³     ³

                                      Motor Start option enable ÄÄÄÙ ³ ³     ³

                                           Parity check DISable ÄÄÄÄÄÙ ³     ³

                                             Sweep Cycle enable ÄÄÄÄÄÄÄÙ     ³

                                                                             ³

 ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸                                        ³

 ³  Terminator Power Source Options ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

 ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

 ³  2 & 4 Ä Initiator supplies power over the SCSI Bus for terminators. ³

 ³            Drive supplies no terminator power.                       ³

 ³  1 & 2 Ä Drive supplies power for its own terminator resistor-paks   ³

 ³            but not to SCSI Bus.  This is the factory setting.        ³

 ³  1 & 3                                                               ³

 ³   AND  Ä Drive supplies power for external terminator at end of the  ³

 ³  2 & 4     daisy chain. Terminator resistor-paks must be removed.    ³

 ³            This option is recommended only for last drive on daisy   ³

 ³            chain.                                                    ³

 ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

    T-RES descriptions: ST43400N   2 SIPs

                        ST43400ND  2 DIPs

                             ST-43400N

                              Elite 3

       UNFORMATTED CAPACITY _____________________3,554,871,600

       FORMATTED CAPACITY (512 byte blk) ________2,912,484,864

       AVERAGE SECTORS PER TRACK ________________99 (rounded down)

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________57,435

       CYLINDERS ________________________________2,738/2,735 (user)

       HEADS ____________________________________21

       DISCS (5.25 in) __________________________11

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______35-52

       INTERNAL TRANSFER RATE AVG (mbyte/sec) ___6.0

       EXTERNAL TRANSFER RATE (mbyte/sec) _______10 (burst)

       SPINDLE SPEED (RPM) ______________________5,400

       AVERAGE LATENCY (mSEC) ___________________5.55

       COMMAND OVERHEAD (mSEC) __________________<0.5

       BUFFER ___________________________________512 Kbyte

         Read Look-Ahead, Adaptive, Multi-Segmented

         Cache

       INTERFACE ________________________________SCSI-2 FAST

       BYTES PER TRACK __________________________49,000-72,800

       SECTORS PER DRIVE ________________________5,696,655

       BYTES PER CYLINDER _______________________1,058,400 to 1,587,600

       TPI (TRACKS PER INCH) ____________________

       BPI (BITS PER INCH) ______________________

       AVERAGE ACCESS (ms) read/write ___________10/11

       SINGLE TRACK SEEK (ms) read/write ________0.9/1.7

       MAX FULL SEEK (ms) read/write ____________22.5/23.5

       MTBF (power-on hours) Class A Room _______300,000

       MTBF (power-on hours) Office _____________200,000

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: Single-ended/Differential

                           +12V START-UP (amps) _3.98/4.60

                           +12V TYPICAL (amps) __1.90/1.88

                           +5V START-UP (amps) __2.37/3.48

                           +5V TYPICAL (amps) ___1.96/2.77

                      TYPICAL ( watts seek/read)_32.60/36.41

                      IDLE (watts) ______________28.34/31.81

       USER MANUAL PART NUMBER __________________83327630

       OTHER ____________________________________

        Synchronized Spindles, Sweep Cycle Capability

** Already low-level formatted at the factory with six spare sectors

per cylinder, one spare cylinders/unit, one system cylinder/unit, and

one diagnostic cylinder/unit.

       Physical:

                        Height (inches/mm):     3.25/82.6

                        Width  (inches/mm):     5.75/146.1

                        Depth  (inches/mm):     8.0/203

                        Weight    (lbs/kg):     7.8/3.6

Seagate reserves the right to change, without notice, product

offerings or specifications. (09/17/96)


ST-43401N
ST-43401N/ND  Elite 3 SCSI-2 Fast Wide

  ÚÄÄÄÄÄÄ Write Protect option enable

  ³  ÚÄÄÄ Not used

  ³  ³ ÚÄ Master off/Slave on - Spindle Sync

  ³  ³ ³                     ÚÄÄÄÄÄÄÄÄÄ Terminator Power Source (see below)ÄÄ¿

  ³  ³ ³J4A                  ³    Ú Terminators (SIP on single,              ³

 ÚÅ Ú´ Å¿                 J01³    ³              DIP on differential)        ³

 ³o oo o³     J7          ÚÄÄ³ÄÄ¿ ÃÄÄÄÄÄÂÄÄÄÄÄ¿                       J4B    ³

 ³o oo o³o o o o o o-a-o-o³4o³o3³ÚÏÍÍÍ1ÚÍÍÍÍ1ÚÍÍÍÍ1       Power    o o o o   ³

 ÀÄÄÄÄÄÄÙo o o o o o-b-o-o³2o o1³___________________   Ú12ÄGÄGÄ5Ä¿ o o o o   ³

 ÍPÍWÍAÍÍØÍØÍØÍØÍØÍ³Í^Í³Í³ÏÍÍÍÍÍ( ×××××××××××××××××1)ÍÍµ 0 0 0 0 ÆÍØÍØÍØÍØÍÍ ³

         8 4 2 1 ³ ³ ³ ³ ³       \ÄÄÄÄÄÄÄÄÄÄÄÄ³ÄÄÄÄ/   \ÄÄÄÄÄÄÄÄÄ/ ³ ³ ³ ³   ³

         ÄÄÄÄÂÄÄ ³ ³   ³ ³         SCSI Cable Connector            ³ ³ ³ ³   ³

             ³   ³ ³ ³ ³ ³                    68-pin               ³ ³ ³ ³   ³

 SCSI ID ÄÄÄÄÙ   ³ ³   ³ ³                                         ³ ³ ³ ³   ³

 Motor  ÄÄÄÄÄÄÄÄÄÙ ³ ³ ³ ³            Spinup Delay (10 secs * ID) ÄÙ ³ ³ ³   ³

 ÚGround ÄÄÄÄÄÄÄÄÄÄÙ   ³ ³              Motor Start option enable ÄÄÄÙ ³ ³   ³

 ³Key (no pin) ÄÄÄÄÄÄÙ ³ ³                          Parity enable ÄÄÄÄÄÙ ³   ³

 ³Spindle Sync (SSCLK-)Ù ³                     Sweep Cycle enable ÄÄÄÄÄÄÄÙ   ³

 ÃSpindle Sync (SSCLK+)ÄÄÙ                                                   ³

 ÀÄ port a and b (horizontal)                                                ³

                                                                             ³

 ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸                                        ³

 ³  Terminator Power Source Options ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

 ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

 ³  2 & 4 Ä Initiator supplies power over the SCSI Bus for terminators. ³

 ³            Drive supplies no terminator power.                       ³

 ³  1 & 2 Ä Drive supplies power for its own terminator resistor-paks   ³

 ³            but not to SCSI Bus.  This is the factory setting.        ³

 ³  1 & 3                                                               ³

 ³   AND  Ä Drive supplies power for external terminator at end of the  ³

 ³  2 & 4     daisy chain. Terminator resistor-paks must be removed.    ³

 ³            This option is recommended only for last drive on daisy   ³

 ³            chain.                                                    ³

 ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

    T-RES descriptions: ST43401N   3 SIPs

                        ST43401ND  3 DIPs

                             ST-43401N/ND

                              Elite 3

       UNFORMATTED CAPACITY _____________________3,554,871,600

       FORMATTED CAPACITY (512 byte blk) ________2,912,484,864

       AVERAGE SECTORS PER TRACK ________________99 (rounded down)

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________57,435

       CYLINDERS ________________________________2,738/2,735 (user)

       HEADS ____________________________________21

       DISCS (5.25 in) __________________________11

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______35-52

       INTERNAL TRANSFER RATE AVG (mbyte/sec) ___6.0

       EXTERNAL TRANSFER RATE (mbyte/sec) _______20 Sync.

       SPINDLE SPEED (RPM) ______________________5,400

       AVERAGE LATENCY (mSEC) ___________________5.55

       COMMAND OVERHEAD (mSEC) __________________<0.5

       BUFFER ___________________________________512 Kbyte

         Read Look-Ahead, Adaptive, Multi-Segmented

         Cache

       INTERFACE ________________________________SCSI-2 FAST Wide

       BYTES PER TRACK __________________________49,000-72,800

       SECTORS PER DRIVE ________________________5,696,655

       BYTES PER CYLINDER _______________________1,058,400 to 1,587,600

       TPI (TRACKS PER INCH) ____________________

       BPI (BITS PER INCH) ______________________

       AVERAGE ACCESS (ms) read/write ___________10/11

       SINGLE TRACK SEEK (ms) read/write ________0.9/1.7

       MAX FULL SEEK (ms) read/write ____________22.5/23.5

       MTBF (power-on hours) Class A Room _______300,000

       MTBF (power-on hours) Office _____________200,000

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: Single-ended/Differential

                           +12V START-UP (amps) _3.98/4.60

                           +12V TYPICAL (amps) __1.90/1.88

                           +5V START-UP (amps) __2.37/3.48

                           +5V TYPICAL (amps) ___1.96/2.77

                      TYPICAL ( watts seek/read)_32.60/36.41

                      IDLE (watts) ______________28.34/31.81

       USER MANUAL PART NUMBER __________________83327630

       OTHER ____________________________________

        Synchronized Spindles, Sweep Cycle Capability

** Already low-level formatted at the factory with six spare sectors

per cylinder, one spare cylinders/unit, one system cylinder/unit, and

one diagnostic cylinder/unit.

       Physical:

                        Height (inches/mm):     3.25/82.6

                        Width  (inches/mm):     5.75/146.1

                        Depth  (inches/mm):     8.0/203

                        Weight    (lbs/kg):     7.8/3.6

Seagate reserves the right to change, without notice, product

offerings or specifications. (08/08/94)


ST-43402ND
ST-43402ND Dual Port Differential Fast Wide SCSI-2

    ÚÄÄÄÄÄ Not used

    ³ ÚÄÄÄ Write Protect option enable

    ³ ³ ÚÄ Master off/Slave on - Spindle Sync

    ³ ³ ³

  ÚÚÅ¿³Ä³¿J4A         TOP

  ³oooo o³

  ³oooo o³  o-a-o-o                  Power    o o o o

  ÀÄÄÄÄÄÄÙ  o-b-o-o               Ú12ÄGÄGÄ5Ä¿ o o o o  J4B

  ÍÍÍÍÍÍÍÍÍÍ³Í^Í³Í³ÍÍÍÍPWAÍÍÍÍÍÍÍÍµ 0 0 0 0 ÆÍØÍØÍØÍØÍÍÍÍÍÍÍÍ

            ³ ³ ³ ³               \ÄÄÄÄÄÄÄÄÄ/ ³ ³ ³ ³

            ³   ³ ³                           ³ ³ ³ ³

 ( \        ³ ³ ³ ³           Spinup Delay    ³ ³ ³ ³         /)

 ³ÎÎ\       ³   ³ ³           (10 secs * ID) ÄÙ ³ ³ ³       /ÎÎ³

 ³ÎÎ³       ³ ³ ³ ³           Motor Start       ³ ³ ³       ³ÎÎ³

 ³ÎÎ³       ³   ³ ³            option enable ÄÄÄÙ ³ ³       ³ÎÎ³

 ³ÎÎ³       ³ ³ ³ ³     Parity Check disable ÄÄÄÄÄÙ ³       ³ÎÎ³

 ³ÎÎ³       ³   ³ ³       Sweep Cycle enable ÄÄÄÄÄÄÄÙ       ³ÎÎ³

 ³ÎÎ³       ³ ³ ³ ³                                         ³ÎÎ³

 ³ÎÎ/       ³   ³ ÀÄ Spindle Sync (SSCLK+)                  \ÎÎ³

 ( /        ³ ³ ÀÄÄÄ Spindle Sync (SSCLK-)                    \)

Port B      ³ ÀÄÄÄÄÄ Key (no pin)                          Port A

            ÀÄÄÄÄÄÄÄ Ground

            port a and b (horizontal)

                ÚÄÄÄÄÄÄÄÂÄÄÄÄ(top pin-2)Ä LED 4

                ³       ÀÄ(bottom pin-1)Ä Manual Reset

To activate J10 ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÂÄ Write Protect enable LED

features, pin   ³ ³                    ÀÄ Write Protect enable

is grounded to  ³ ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÂÄ Port B active LED

external switch.³ ³ ³                  ÀÄ SCSI ID 4

                ³ ³ ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÂÄ Port A active LED

                ³ ³ ³ ³                ÀÄ SCSI ID 2

                ³ ³ ³ ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÂÄ Ready LED

                ³ ³ ³ ³ ³              ÀÄ Self Test

                ³ ³ ³ ³ ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄÂÄ LED 6 (n/a)

                ³ ³ ³ ³ ³ ³            ÀÄ Port B dictates Port A's ID

                ³ ³ ³ ³ ³ ³ ÚÄÄÄÄÄÄÄÄÄÄÂÄ Spinup Delay (10 secs * ID)

                ³ ³ ³ ³ ³ ³ ³          ÀÄ SCSI ID 1

  ÍPWAÍÍÍÍÍÍ    ³ ³ ³ ³ ³ ³ ³ ÚÄÄÄÄÄÄÄÄÂÄ Fault LED

                ³ ³ ³ ³ ³ ³ ³ ³        ÀÄ Motor Start Option enable

                ³ ³ ³ ³ ³ ³ ³ ³ ÚÄÄÄÄÄÄÂÄ Not assigned

       J01B     ³ ³ ³ ³ ³ ³ ³ ³ ³      ÀÄ SCSI ID 8

 ( \   ÚÄÄÄÄÄ¿  ³ ³ ³ ³ ³ ³ ³ ³ ³                 ÚÄÄÄÄÄ¿     /)

 ³ÎÎ\  ³4o o3³  ³ ³ ³ ³ ³ ³ ³ ³ ³           J01A  ³4o o3³   /ÎÎ³

 ³ÎÎ³  ³2o³o1³  o o o o o o o o o                 ³2o³o1³   ³ÎÎ³

 ³ÎÎ³     ³     1 o o o o o o o o  J10               ³      ³ÎÎ³

 ³ÎÎ³     ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ´      ³ÎÎ³

 ³ÎÎ³    Úo     ÚÄÄÄÄÄGNDÄÄÄÄÄÄÄ¿                    ³      ³ÎÎ³

 ³ÎÎ³   ÚÁo     o o o o o o o o o                    ³      ³ÎÎ³

 ³ÎÎ/   ³ o o   1 o o o o o o o o  J9                ³      \ÎÎ³

 ( /    ³ ÀÂÙ   8 4 2 1 8 4 2 1 ³                    ³        \)

Port B  ³  ³    ÀÄÄÄÂÄÙ ÀÄÄÄÂÄÙ ³                    ³     Port A

        ³  ³        ³       ³   ³                    ³

        ³J3³        ³       ³   ÀÄ Port B dictates   ³

Port A ÄÙ  ³        ³       ³       Port A's ID      ³

 enable    ³        ³       ÀÄÄÄÄÄ SCSI ID Port A    ³

Port B ÄÄÄÄÙ        ÀÄÄÄÄÄÄÄÄÄÄÄÄÄ SCSI ID Port B    ³

 enable                                              ³

                                                     ³

 ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸                ³

 ³  Terminator Power Source Options J01A & J01B ÄÄÄÄÄÙ

 ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

 ³  2 & 4 Ä Initiator supplies power over the SCSI Bus for terminators. ³

 ³            Drive supplies no terminator power.                       ³

 ³  1 & 2 Ä Drive supplies power for its own terminator resistor-paks   ³

 ³            but not to SCSI Bus.  This is the factory setting.        ³

 ³  1 & 3                                                               ³

 ³   AND  Ä Drive supplies power for external terminator at end of the  ³

 ³  2 & 4     daisy chain and supplies own terminator power.            ³

 ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

  ST-43402ND does not come with any provision to use Termination resistors.

  Therefore, SCSI bus needs to be externally terminated.

                             ST-43402ND

                              Elite 3

       UNFORMATTED CAPACITY _____________________3,554,871,600

       FORMATTED CAPACITY (512 byte blk) ________2,912,484,864

       AVERAGE SECTORS PER TRACK ________________99 (rounded down)

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________57,435

       CYLINDERS ________________________________2,738/2,735 (user)

       HEADS ____________________________________21

       DISCS (5.25 in) __________________________11

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______35-52

       INTERNAL TRANSFER RATE AVG (mbyte/sec) ___6.0

       EXTERNAL TRANSFER RATE (mbyte/sec) _______20 Sync

       SPINDLE SPEED (RPM) ______________________5,400

       AVERAGE LATENCY (mSEC) ___________________5.55

       COMMAND OVERHEAD (mSEC) __________________<0.5

       BUFFER ___________________________________512 Kbyte

         Read Look-Ahead, Adaptive, Multi-Segmented

         Cache

       INTERFACE ________________________________SCSI-2 FAST Wide

                                                  Dual-Port

       BYTES PER TRACK __________________________49,000-72,800

       SECTORS PER DRIVE ________________________5,696,655

       BYTES PER CYLINDER _______________________1,058,400 to 1,587,600

       TPI (TRACKS PER INCH) ____________________

       BPI (BITS PER INCH) ______________________

       AVERAGE ACCESS (ms) read/write ___________10/11

       SINGLE TRACK SEEK (ms) read/write ________0.9/1.7

       MAX FULL SEEK (ms) read/write ____________22.5/23.5

       MTBF (power-on hours) Class A Room _______300,000

       MTBF (power-on hours) Office _____________200,000

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: Single-ended/Differential

                           +12V START-UP (amps) _3.98/4.60

                           +12V TYPICAL (amps) __1.90/1.88

                           +5V START-UP (amps) __2.37/3.48

                           +5V TYPICAL (amps) ___1.96/2.77

                      TYPICAL ( watts seek/read)_32.60/36.41

                      IDLE (watts) ______________28.34/31.81

       USER MANUAL PART NUMBER __________________83327630

       OTHER ____________________________________

        Synchronized Spindles, Sweep Cycle Capability

** Already low-level formatted at the factory with six spare sectors

per cylinder, one spare cylinders/unit, one system cylinder/unit, and

one diagnostic cylinder/unit.

       Physical:

                        Height (inches/mm):     3.25/82.6

                        Width  (inches/mm):     5.75/146.1

                        Depth  (inches/mm):     8.0/203

                        Weight    (lbs/kg):     7.8/3.6

Seagate reserves the right to change, without notice, product

offerings or specifications. (08/08/94)


ST-4350N
ST-4350N (94171-350) Wren 4 FH SCSI

Connects CHASIS ground to ground lug ÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

Connects SIGNAL ground to ground lug ÄÄÄÄÄÄÄÄÄÄÄÄ¿ ³

                   Drive Select ID's ÄÄÄÄÄÄÄ¿    ³ ³

           Motor Start Option enable ÄÄÄ¿   ³    G G

          Parity Check Option enable Ä¿ ³ ÚÄÅÄ¿ Ú1Â2¿

                                      P M 4 2 1 ³o³o³   Ú12ÄGÄGÄ5Ä¿

                                      o o o o o ³o³o³   ³ 0 0 0 0 ³ Power

                                      o o o o o ÀÄÁÄÙ   \ÄÄÄÄÄÄÄÄÄ/

   ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍServoÍPWAÍ

   ÍÑÍÍÍÍÍÍÍÑÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÑÍÍDataÍPWAÍÍ

    1ÄÄÄÄÄÄÄÙ    ³:::SCSI Cable::::::::::::1 ³ ÚÄ¿    1ÄÄÄÄÄÄÄÄÙ

Terminator DIP   ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ³o³ o    Terminator DIP

                                               ³oÅÄo

                                               ÀÂÙ

Terminator power (+5v) from drive (vertical) ÄÄÄÙ

Terminator power from the Bus (lower horizontal)

                             ST-4350N

                        94171-350/M WREN 4 FH

       UNFORMATTED CAPACITY (MB) ________________350

       FORMATTED CAPACITY (xx SECTORS) (MB) _____300

       AVERAGE SECTORS PER TRACK ________________46

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________12708

       CYLINDERS ________________________________1412

       HEADS ____________________________________9

       DISCS ____________________________________5

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (2,7)

       TRANSFER RATE (mbytes/sec) _______________1.25-1.875

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________32 Kbyte

         Read Look-Ahead, Non-Adaptive,

         Single-Segmented Buffer

       INTERFACE ________________________________SCSI

       TPI (TRACKS PER INCH) ____________________1280

       BPI (BITS PER INCH) ______________________19058

       AVERAGE ACCESS (ms) ______________________16.5

       SINGLE TRACK SEEK (ms) ___________________4

       MAX FULL SEEK (ms) _______________________43

       MTBF (power-on hours) ____________________100,000

       POWER REQUIREMENTS: +12V START-UP (amps) _4.5

                           +12V TYPICAL (amps) __1.5

                           +5V START-UP (amps) __2.0

                           +5V TYPICAL (amps) ___1.8

                           TYPICAL (watts) ______27

                           MAXIMUM (watts) ______64

       BUFFERED STEP PULSE RATE (micro sec) _____

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-4376N
ST-4376N (94171-376 or -344) Wren 4 FH SCSI

Connects CHASIS ground to ground lug ÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿

Connects SIGNAL ground to ground lug ÄÄÄÄÄÄÄÄÄÄÄÄ¿ ³

                   Drive Select ID's ÄÄÄÄÄÄÄ¿    ³ ³

           Motor Start Option enable ÄÄÄ¿   ³    G G

          Parity Check Option enable Ä¿ ³ ÚÄÅÄ¿ Ú1Â2¿

                                      P M 4 2 1 ³o³o³   Ú12ÄGÄGÄ5Ä¿

                                      o o o o o ³o³o³   ³ 0 0 0 0 ³ Power

                                      o o o o o ÀÄÁÄÙ   \ÄÄÄÄÄÄÄÄÄ/

   ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍServoÍPWAÍ

   ÍÑÍÍÍÍÍÍÍÑÍÍÍÍÑÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÑÍÍÍÍÍÍÍÍÑÍÍDataÍPWAÍÍ

    1ÄÄÄÄÄÄÄÙ    ³:::SCSI Cable::::::::::::1 ³ ÚÄ¿    1ÄÄÄÄÄÄÄÄÙ

Terminator DIP   ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ³o³ o    Terminator DIP

                                               ³oÅÄo

                                               ÀÂÙ

Terminator power (+5v) from drive (vertical) ÄÄÄÙ

Terminator power from the Bus (lower horizontal)

                             ST-4376N

                        94171-376/M WREN 4 FH

       UNFORMATTED CAPACITY (MB) ________________376

       FORMATTED CAPACITY (xx SECTORS) (MB) _____330

       AVERAGE SECTORS PER TRACK ________________45

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________13914

       CYLINDERS ________________________________1549

       HEADS ____________________________________9

       DISCS ____________________________________5

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (2,7)

       TRANSFER RATE (mbytes/sec) _______________1.125-1.875

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________32 Kbyte

         Read Look-Ahead, Non-Adaptive,

         Single-Segmented Buffer

       INTERFACE ________________________________SCSI

       TPI (TRACKS PER INCH) ____________________1280

       BPI (BITS PER INCH) ______________________19058

       AVERAGE ACCESS (ms) ______________________17.5

       SINGLE TRACK SEEK (ms) ___________________4

       MAX FULL SEEK (ms) _______________________43

       MTBF (power-on hours) ____________________100,000

       POWER REQUIREMENTS: +12V START-UP (amps) _4.5

                           +12V TYPICAL (amps) __1.4

                           +5V START-UP (amps) __1.9

                           +5V TYPICAL (amps) ___1.5

                           TYPICAL (watts) ______27

                           MAXIMUM (watts) ______64

       BUFFERED STEP PULSE RATE (micro sec) _____

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-4385N
ST-4385N (94181-385H) Wren 5 - Wren Runner 1 - SCSI

                                                        Power

                      ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\

      ÍÍÍÍÍPÍWÍAÍÍÍÍÍÍµ:SCSI:Cable:::::::::::::::::1ÆÍµ 0 0 0 0 ÆÍÍ

      ÚÄ¿             ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù

      ³o³x o o o o o(o) *ÄÄÄÄÄÄÄ1 *ÄÄÄÄÄÄÄ1 *ÄÄÄÄÄÄÄ1

      ÅoÅo o o o o o(o) ÀÄÄÄÄÄÄÄÙ ÀÄÄÄÄÄÄÄÙ ÀÄÄÄÄÄÄÄÙ

      ÀÄÙ  4 2 1           Terminator SIPS (see note below *)

       ³   ÄÄÂÄÄ ³ ³ ³

       ³     ³   ³ ³ ÀÄReserved (some PWA's do not have these pins)

       ³     ³   ³ ÀÄÄÄParity check enable

       ³     ³   ÀÄÄÄÄÄMotor Start option enable

       ³     ÀÄÄÄÄÄÄÄÄÄDrive ID's, ID 0 (none) if only SCSI device

       ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄTerminator power from Drive (vertical)

                       Terminator power from Bus (lower horizontal)

    * Note: If you have #77701215k silk-screened near the 50-pin SCSI cable

      connector, the pin-1 for the 3 terminating resistors is away from

      the DC power connector.

                             ST-4385N

                   94181-385H/M WREN RUNNER FH

       UNFORMATTED CAPACITY (MB) ________________385

       FORMATTED CAPACITY (xx SECTORS) (MB) _____330

       AVERAGE SECTORS PER TRACK ________________55

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________11865

       CYLINDERS ________________________________791

       HEADS ____________________________________15

       DISCS ____________________________________8

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (2,7)

       TRANSFER RATE (mbytes/sec) _______________1.875-2

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________32 Kbyte

         Read Look-Ahead, Non-Adaptive,

         Single-Segmented Buffer

       INTERFACE ________________________________SCSI

       TPI (TRACKS PER INCH) ____________________1280

       BPI (BITS PER INCH) ______________________22000

       AVERAGE ACCESS (ms) ______________________10.7

       SINGLE TRACK SEEK (ms) ___________________3

       MAX FULL SEEK (ms) _______________________22.5

       MTBF (power-on hours) ____________________100,000

       POWER REQUIREMENTS: +12V START-UP (amps) _4.5

                           +12V TYPICAL (amps) __1.6

                           +5V START-UP (amps) __1.0

                           +5V TYPICAL (amps) ___0.7

                           TYPICAL (watts) ______21

                           MAXIMUM (watts) ______59

       BUFFERED STEP PULSE RATE (micro sec) _____

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-4702N
ST-4702N (94181-702) Wren 5 SCSI

                                                        Power

                      ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\

      ÍÍÍÍÍPÍWÍAÍÍÍÍÍÍµ:SCSI:Cable:::::::::::::::::1ÆÍµ 0 0 0 0 ÆÍÍ

      ÚÄ¿             ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù

      ³o³x o o o o o(o) *ÄÄÄÄÄÄÄ1 *ÄÄÄÄÄÄÄ1 *ÄÄÄÄÄÄÄ1

      ÅoÅo o o o o o(o) ÀÄÄÄÄÄÄÄÙ ÀÄÄÄÄÄÄÄÙ ÀÄÄÄÄÄÄÄÙ

      ÀÄÙ  4 2 1           Terminator SIPS (see note below *)

       ³   ÄÄÂÄÄ ³ ³ ³

       ³     ³   ³ ³ ÀÄReserved (some PWA's do not have these pins)

       ³     ³   ³ ÀÄÄÄParity check enable

       ³     ³   ÀÄÄÄÄÄMotor Start option enable

       ³     ÀÄÄÄÄÄÄÄÄÄDrive ID's, ID 0 (none) if only SCSI device

       ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄTerminator power from Drive (vertical)

                       Terminator power from Bus (lower horizontal)

    * Note: If you have #77701215k silk-screened near the 50-pin SCSI cable

      connector, the pin-1 for the 3 terminating resistors is away from

      the DC power connector.

                             ST-4702N

                       94181-702/M WREN 5 FH

       UNFORMATTED CAPACITY (MB) ________________702

       FORMATTED CAPACITY (xx SECTORS) (MB) _____601

       AVERAGE SECTORS PER TRACK ________________50

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________23190

       CYLINDERS ________________________________1546

       HEADS ____________________________________15

       DISCS ____________________________________8

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (2,7)

       TRANSFER RATE (mbytes/sec) _______________1.5-2

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________32 Kbyte

         Read Look-Ahead, Non-Adaptive,

         Single-Segmented Buffer

       INTERFACE ________________________________SCSI

       TPI (TRACKS PER INCH) ____________________1280

       BPI (BITS PER INCH) ______________________26000

       AVERAGE ACCESS (ms) ______________________16.5

       SINGLE TRACK SEEK (ms) ___________________3

       MAX FULL SEEK (ms) _______________________39

       MTBF (power-on hours) ____________________100,000

       POWER REQUIREMENTS: +12V START-UP (amps) _4.5

                           +12V TYPICAL (amps) __1.6

                           +5V START-UP (amps) __1.0

                           +5V TYPICAL (amps) ___0.7

                           TYPICAL (watts) ______21

                           MAXIMUM (watts) ______59

       BUFFERED STEP PULSE RATE (micro sec) _____

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-4766N
ST-4766N (94191-766) Wren 6 FH SCSI

                     ÚÄÄ Some 16-pin configurations may not have these pins.

                     ³

                     ³  ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸ /Ä4Ä3Ä2Ä1Ä\

      ÍÍÍÍÍPÍWÍAÍÍÍÍÍØÍÍµ:::SCSI:Cable:::::::::::::::1ÆÍµ 0 0 0 0 ÆÍÍ

      ÚÄ¿            ³  ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù

      ³o³o o o o o o(o)o ÚÄÄÄÄÄÄÄÄ1ÚÄÄÄÄÄÄÄÄ1ÚÄÄÄÄÄÄÄÄ1     Power

      ÅoÅo o o o o o(o)o ÀÄÄÄÄÄÄÄÄÙÀÄÄÄÄÄÄÄÄÙÀÄÄÄÄÄÄÄÄÙ

      ÀÄÙ  4 2 1 M P ³ ³    Terminator Resistor SIPS

       ³   ÄÄÂÄÄ ³ ³ ³ ³

       ³     ³   ³ ³ ³ ÀÄ  Reserved

       ³     ³   ³ ³ ÀÄÄÄ  Motor Start Delay ( 16 sec * ID)

       ³     ³   ³ ÀÄÄÄÄÄ  Parity option enable

       ³     ³   ÀÄÄÄÄÄÄÄ  Motor Start option enable

       ³     ÀÄÄÄÄÄÄÄÄÄÄÄ  Drive ID's, ID 0 (none) if only SCSI device

       ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅ  Terminator power from Drive (vertical)

                        À  Terminator power from Bus (lower horizontal)

                             ST-4766N

                        94191-766 WREN 6 FH

       UNFORMATTED CAPACITY (MB) ________________766

       FORMATTED CAPACITY (54 SECTORS) (MB) _____676

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________24,480

       CYLINDERS ________________________________1,632

       HEADS ____________________________________15

       DISCS ____________________________________8

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________RLL

       TRANSFER RATE (mbytes/sec) _______________1.875

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________32 Kbyte

         Read Look-Ahead, Non-Adaptive,

         Single-Segmented Buffer

       INTERFACE ________________________________SCSI

       TPI (TRACKS PER INCH) ____________________1,459

       BPI (BITS PER INCH) ______________________30,500

       AVERAGE ACCESS (ms) ______________________15.5

       SINGLE TRACK SEEK (ms) ___________________3

       MAX FULL SEEK (ms) _______________________37

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _4.5

                           +12V TYPICAL (amps) __1.5

                           +5V START-UP (amps) __1.0

                           +5V TYPICAL (amps) ___0.6

                           TYPICAL (watts) ______21

                           MAXIMUM (watts) ______59

       BUFFERED STEP PULSE RATE (micro sec) _____N/A

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

Already low-level formatted at the factory.

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-4767N
ST-4767N (94601-767H) Wren Runner 2 FH SCSI-2

                     ÚÄÄ Some 16-pin configurations may not have these pins.

                     ³

                     ³  ÕÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¸ /Ä4Ä3Ä2Ä1Ä\

      ÍÍÍÍÍPÍWÍAÍÍÍÍÍØÍÍµ:::SCSI:Cable:::::::::::::::1ÆÍµ 0 0 0 0 ÆÍÍ

      ÚÄ¿            ³  ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù

      ³o³o o o o o o(o)o ÚÄÄÄÄÄÄÄÄ1ÚÄÄÄÄÄÄÄÄ1ÚÄÄÄÄÄÄÄÄ1     Power

      ÅoÅo o o o o o(o)o ÀÄÄÄÄÄÄÄÄÙÀÄÄÄÄÄÄÄÄÙÀÄÄÄÄÄÄÄÄÙ

      ÀÄÙ  4 2 1 M P ³ ³    Terminator Resistor SIPS

       ³   ÄÄÂÄÄ ³ ³ ³ ³

       ³     ³   ³ ³ ³ ÀÄ  Reserved

       ³     ³   ³ ³ ÀÄÄÄ  Motor Start Delay ( 16 sec * ID)

       ³     ³   ³ ÀÄÄÄÄÄ  Parity option enable

       ³     ³   ÀÄÄÄÄÄÄÄ  Motor Start option enable

       ³     ÀÄÄÄÄÄÄÄÄÄÄÄ  Drive ID's, ID 0 (none) if only SCSI device

       ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅ  Terminator power from Drive (vertical)

                        À  Terminator power from Bus (lower horizontal)

                             ST-4767N

                    94601-767H/M WREN RUNNER FH

       UNFORMATTED CAPACITY (MB) ________________767

       FORMATTED CAPACITY (64 SECTORS) (MB) _____665

       ACTUATOR TYPE ____________________________VOICE COIL

       TRACKS ___________________________________20340

       CYLINDERS ________________________________1356

       HEADS ____________________________________15

       DISCS ____________________________________8

       MEDIA TYPE _______________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       TRANSFER RATE (mbytes/sec) _______________3

       SPINDLE SPEED (RPM) ______________________4,800

       AVERAGE LATENCY (mSEC) ___________________6.25

       BUFFER ___________________________________256 Kbyte

         Read Look-Ahead, Adaptive,

         Multi-Segmented Cache

       INTERFACE ________________________________SCSI-2

       TPI (TRACKS PER INCH) ____________________1,600

       BPI (BITS PER INCH) ______________________30,600

       AVERAGE ACCESS (ms) ______________________11.9

       SINGLE TRACK SEEK (ms) ___________________2.5

       MAX FULL SEEK (ms) _______________________26

       MTBF (power-on hours) ____________________150,000

       POWER REQUIREMENTS: +12V START-UP (amps) _4.5

                           +12V TYPICAL (amps) __1.6

                           +5V START-UP (amps) __1.1

                           +5V TYPICAL (amps) ___0.8

                           TYPICAL (watts) ______27

                           MAXIMUM (watts) ______60

       BUFFERED STEP PULSE RATE (micro sec) _____

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO PARK

       IBM AT DRIVE TYPE ________________________0 or NONE

Already low-level formatted at the factory.

Seagate reserves the right to change, without notice, product

offerings or specifications. (6/26/90)


ST-51080N
ST-51080N Fast SCSI-2 (Medalist 1080sl SCSI, formerly Decathlon family)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                  50 pin I/O Cable Connection

                  ³

               ÕÍÍÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

           ÍÍÍÍµ::::::::::::::::::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

             J1ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

ST-51080N

 ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

 º  Front View  º

 ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

                   ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ SCSI ID's (Default ID3, none for ID0)

                   ³   ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Reserved

  (TOP)            ³   ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄ Remote LED (9-,10+)

                 ÚÄÁÄ¿ ³ ³ ÚÄÄÄÄÄÄÄÄÄÄ Reserved

                 4 2 1 ³ ³ ³         Ú22         Ú34

  J8             o o o o o o   o o o o-o o o-o o-o

Option Block   Í1o o o o o o o o o o o-o o o o o oÍÍÍÍÍÍÍPWAÍÍÍÍÍÍÍÍÍÍ

                   * *       ³ ³ * ³ ÀÂÙ ÀÄÄÄÂÄÄÄÙ

  (BOTTOM)                   ³ ³ ³ ³  ³      ÀÄÄÄÄÄ  Reserved

            pin-14 removed ÄÄÙ ³ ³ ³  ÀÄÄÄÄÄÄÄÄÄÄÄÄ  Terminator power

                               ³ ³ ³                  see detail below  ÄÄÄÄ¿

                               ³ ³ ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ  Terminator disable     ³

                               ³ ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ  Parity Enable (default)³

                               ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ  Remote Start           ³

                               Spare jumpers stored on pins 28-30, 32-34    ³

            Terminator Power (4 settings) ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

        22    24    1.  23 & 24  Power from drive power connector

          o--o      2.  21 & 23  Power from SCSI bus

                    3.  21 & 23  Power from drive power connector and

          o--o          22 & 24  to SCSI bus (default, 2 jumpers)

        21    23    4.  22 & 24  Power to SCSI bus only

                             ST-51080N

                             Medalist 1080sl SCSI

       FORMATTED CAPACITY (MB) __________________1080.23

       SECTORS PER TRACK ________________________109 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       CYLINDERS __PHYSICAL______________________4,826 user

       HEADS ______PHYSICAL______________________4

       DISCS (3.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (Mbits/sec) _______33 to 65

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______5 Async/10 Sync

       SPINDLE SPEED (RPM) ______________________5,376

       AVERAGE LATENCY (mSEC) ___________________5.6

       BUFFER ___________________________________128 Kbyte SeaCache

        Read/Write, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________SCSI-2 Fast

       SECTORS PER DRIVE ________________________2,109,840

       TPI (TRACKS PER INCH) ____________________4,923

       BPI (BITS PER INCH) ______________________73,344

       AVERAGE SEEK (ms) ________________________12.5

       SINGLE TRACK SEEK (ms) ___________________3.5

       MAX FULL SEEK (ms) _______________________25

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating (Read/Write) __________2

                nonoperating ____________________

       ACOUSTICS (dBa) idle/max _________________30/34

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _1.32

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________7.11

                           IDLE _________________4.9

                           STANDBY ______________

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________0

       Physical:

                        Height (inches/mm):     0.75/19

                        Width  (inches/mm):     4.02/102.1

                        Depth  (inches/mm):        5/127

                        Weight     (lbs/g):    0.750/340.2

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Seagate reserves the right to change, without notice, product

offerings or specifications. (01/09/96)


ST-52160N
ST-52160N Ultra-SCSI (Medalist Pro 2160N SCSI)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                  50 pin I/O Cable Connection

                  ³

               ÕÍÍÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

           ÍÍÍÍµ::::::::::::::::::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

             J1ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

ST-52160N

 ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

 º  Front View  º                 J5

 ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼               Option Block

                   ÚÄÄÄÄÄÄÄ Parity Enable

  (TOP)            ³   ÚÄÄÄ SCSI ID's (Default ID3, none for ID0)

                   ³ ÚÄÁÄ¿

                   ³ 4 2 1

             o o o o o o o1

           Í o o o o o o o2ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPWAÍÍÍÍÍÍÍÍÍÍ

             ³ ³ ³

  (BOTTOM)   ³ ³ ÀÄÄÄÄÄÄÄÄÄ Remote Start Enable

             ³ ÀÄÄÄÄÄÄÄÄÄÄÄ Terminator Disable

             ÀÄÄÄÄÄÄÄÄÄÄÄÄÄ Remote LED (13-,14+)

Termination Power: The drive will provide termination power to the

drive's terminator chips and to the SCSI bus. Termination power is

still provided to the SCSI bus when terminators are disabled. No

other option is available.

                             ST-52160N

                        Medalist Pro 2160N

       FORMATTED CAPACITY (MB) __________________2170

       SECTORS PER TRACK ________________________161 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       CYLINDERS __PHYSICAL______________________6,536 user

       HEADS ______PHYSICAL______________________4

       DISCS (3.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________MR FILM

       RECORDING METHOD _________________________ZBR PRML (0,4,4)

       INTERNAL TRANSFER RATE (Mbits/sec) _______56.3 to 99.6

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______10 Async/20 Sync

       SPINDLE SPEED (RPM) ______________________5,397

       AVERAGE LATENCY (mSEC) ___________________5.56

       BUFFER ___________________________________128 Kbyte

        Read/Write, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________Ultra-SCSI

       SECTORS PER DRIVE ________________________4,238,282

       TPI (TRACKS PER INCH) ____________________6,731

       BPI (BITS PER INCH) ______________________122,369

       AVERAGE SEEK (ms read/write) _____________12/13

       SINGLE TRACK SEEK (ms) ___________________3.5

       MAX FULL SEEK (ms) _______________________25

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating (Read/Write) __________2

                nonoperating ____________________

       ACOUSTICS (dBa) idle/max _________________30/34

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _1.18

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________6.4

                           IDLE _________________6.2

                           STANDBY ______________

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________0

       Physical:

                      Height (inches/mm):    0.748/19

                      Width  (inches/mm):     4.01/101.8

                      Depth  (inches/mm):     5.38/136.6

                      Weight     (lbs/g):    0.750/340.2

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory with 2,000 spare blocks at

the end of the volume.

Seagate reserves the right to change, without notice, product

offerings or specifications. (12/09/96)


ST-52160WC
ST-52160WC Ultra-SCSI Wide (Medalist Pro 2160WC SCSI)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º  (ST-52160WC only)

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

                     80 pin I/O and DC Power Wall/bracket Connection

                     ³  Female

    J1          /ÄÄÄÄ³ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ\      TOP (HDA)

     ÍÍÍÍÍÍÍÍÍÍ/ ×××××××××××××××××××× \ÍÍÍÍÍÍÍÍÍÍ

              (\Ä1ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ40/)    BOTTOM

     Notes on 80 pin I/O connector:

       pins  1 -  4 = +12v        41 - 44 = 12v GND

            34 - 36 = +5v         74 - 76 = 5v GND

                 37 = SYNC             77 = LEDC

                 38 = MTRON            78 = DLYDST

                 39 = SCSIA0           79 = SCSIA1

                 40 = SCSIA2           80 = SCSIA3

  Mating WC connector: AMP US p/n: 787311-1 straight-in, Male 80-pin

ST-52160WC

 ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

 º  Front View  º                 J5

 ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼               Option Block

                 ÚÄÄÄÄÄÄÄÄÄ Parity Enable

  (TOP)          ³     ÚÄÄÄ SCSI ID's (Default ID3, none for ID0)

                 ³ ÚÄÄÄÁÄ¿

                 ³ 8 4 2 1

             o o o o o o o1

           Í o o o o o o o2ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍPWAÍÍÍÍÍÍÍÍÍÍ

             ³ ³

  (BOTTOM)   ³ ÀÄÄÄÄÄÄÄÄÄÄ Remote Start Enable

             ÀÄÄÄÄÄÄÄÄÄÄÄÄ Remote LED (13-,14+)

Termination: Termination is not provided on the ST52160WC. You

must provide your own external termination as required. Termination

power is not provided to the SCSI bus.

                             ST-52160WC

                        Medalist Pro 2160WC

       FORMATTED CAPACITY (MB) __________________2170

       SECTORS PER TRACK ________________________161 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       CYLINDERS __PHYSICAL______________________6,536 user

       HEADS ______PHYSICAL______________________4

       DISCS (3.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________MR FILM

       RECORDING METHOD _________________________ZBR PRML (0,4,4)

       INTERNAL TRANSFER RATE (Mbits/sec) _______56.3 to 99.6

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______20 Async/40 Sync

       SPINDLE SPEED (RPM) ______________________5,397

       AVERAGE LATENCY (mSEC) ___________________5.56

       BUFFER ___________________________________256 Kbyte

        Read/Write, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________Ultra-SCSI-3

       SECTORS PER DRIVE ________________________4,238,282

       TPI (TRACKS PER INCH) ____________________6,731

       BPI (BITS PER INCH) ______________________122,369

       AVERAGE SEEK (ms read/write) _____________12/13

       SINGLE TRACK SEEK (ms) ___________________3.5

       MAX FULL SEEK (ms) _______________________25

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating (Read/Write) __________2

                nonoperating ____________________

       ACOUSTICS (dBa) idle/max _________________30/34

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _1.18

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________6.4

                           IDLE _________________6.2

                           STANDBY ______________

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________0

       Physical:

                      Height (inches/mm):    0.748/19

                      Width  (inches/mm):     4.01/101.8

                      Depth  (inches/mm):     5.38/136.6

                      Weight     (lbs/g):    0.750/340.2

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory with 2,000 spare blocks at

the end of the volume.

Seagate reserves the right to change, without notice, product

offerings or specifications. (12/09/96)


ST-5660N
ST-5660N Fast SCSI-2 (Decathlon 545 SCSI)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»

  º REAR VIEW º

  ÈÍÍÍÍÍÍÍÍÍÍÍ¼

      (front) ID1  o o   50 pin I/O Cable Connection

              ID2  o o   ³

       (back) ID4  o oÕÍÍÍÍÍÍÍÍÍÍÍ  ÍÍÍÍÍÍÍÍÍÍÍÍ¸ /ÄÄÄÄÄÄÄÄÄ\    TOP (HDA)

                  ÍÍÍÍµ::::::::::::::::::::::::1ÆÍ³ 0 0 0 0 ³ÍÍ

                    J1ÔÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¾ ÀÄ5ÄGÄGÄ12Ù    BOTTOM

ST-5660N

 ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»

 º  Front View  º

 ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼

                   ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ SCSI ID's (none for ID0)

                   ³   ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄ Reserved

  (TOP)            ³   ³ ÚÄÄÄÄÄÄÄÄÄÄÄÄ Remote LED (9-,10+)

                 ÚÄÁÄ¿ ³ ³ ÚÄÄÄÄÄÄÄÄÄÄ Reserved

                 4 2 1 ³ ³ ³         Ú22         Ú34

  J8             o o o o o o   o o o o o o o o o o

Option Block   Í1o o o o o o o o o o o o o o o o oÍÍÍÍÍÍÍPWAÍÍÍÍÍÍÍÍÍÍ

                             ³ ³ ³ ³ ÀÂÙ ÀÄÄÄÂÄÄÄÙ

  (BOTTOM)                   ³ ³ ³ ³  ³      ÀÄÄÄÄÄ  Reserved

            pin-14 removed ÄÄÙ ³ ³ ³  ÀÄÄÄÄÄÄÄÄÄÄÄÄ  Terminator power

                               ³ ³ ³                  see detail below  ÄÄÄÄ¿

                               ³ ³ ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ  Terminator disable     ³

                               ³ ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ  Parity Enable          ³

                               ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ  Remote Start           ³

                                                                            ³

            Terminator Power (4 settings) ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

        22    24    1.  23 & 24  Power from drive power connector (default)

          o  o      2.  21 & 23  Power from SCSI bus

                    3.  21 & 23  Power from drive power connector and

          o  o          22 & 24  to SCSI bus

        21    23    4.  22 & 24  Power to SCSI bus only

                             ST-5660N

                             Decathlon 545 SCSI

       UNFORMATTED CAPACITY _____________________

       FORMATTED CAPACITY (xx SECTORS) __________545.29

       SECTORS PER TRACK ________________________88 rounded down

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       CYLINDERS __PHYSICAL______________________3002

       HEADS ______PHYSICAL______________________4

       DISCS (3.5 in) ___________________________2

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (Mbits/sec) _______27.6 to 47.2

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______5 Async/10 Sync

       SPINDLE SPEED (RPM) ______________________4,500

       AVERAGE LATENCY (mSEC) ___________________6.67

       BUFFER ___________________________________256 Kbyte SeaCache

        Read/Write, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________SCSI-2 Fast

       SECTORS PER DRIVE ________________________1,065,036

       TPI (TRACKS PER INCH) ____________________3,309

       BPI (BITS PER INCH) ______________________68,000

       AVERAGE ACCESS (ms) ______________________12

       SINGLE TRACK SEEK (ms) ___________________3.5

       MAX FULL SEEK (ms) _______________________30

       MTBF (power-on hours) Office _____________300,000

       SHOCK (G's):

                operating (Read/Write) __________2

                nonoperating ____________________75

       ACOUSTICS (dBa) __________________________34

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS: +12V START-UP (amps) _1.9

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________5.5

                           IDLE _________________<2.5

                           STANDBY ______________0.7

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________0

       Physical:

                        Height (inches/mm):     0.75/19

                        Width  (inches/mm):     4.02/102.1

                        Depth  (inches/mm):     5/127

                        Weight    (lbs/kg):     1.5/0.68

ZBR = Zone Bit Recording = Variable sectors per track

Already low-level formatted at the factory.

Seagate reserves the right to change, without notice, product

offerings or specifications. (11/03/95)


ST-9235NG

                                      ÚÄ 40-pin I/O Connector (* see below)

                            TOP       ³

                                      ³                            1

                                                             o o o o

                              ÍPÍWÍAÍ :::::::::::.:::::::1 ÍÍø ø ø ø

                                                 ³

       pin-17 removed for keying ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

Pin assignments for the Seagate 2.5" drive SCSI interface connector

     (signal)          (pin)          (signal)

                    ÚÄÄÄÄÄÄÄÄÄÄ¿                               pin

     Reserved (NC)  ³ 1      2 ³  Reserved (ND)                ID1 ID2 ID4

     Reserved (NC)  ³ 3      4 ³  Reserved (ND)            ID ÚÄÄÄÄÄÄÄÄÄÄÄ

              ID1-  ³ 5      6 ³  ID2-                      0 ³ H   H   H

              ID4-  ³ 7      8 ³  LED                       1 ³ L   H   H

                    ÀÄÄÄÄÄÄÄÄÄÄÙ                            2 ³ H   L   H

                    ÚÄÄÄÄÄÄÄÄÄÄ¿                            3 ³ L   L   H

               +5v  ³ 1      2 ³  +5v                       4 ³ H   H   L

           +5v Ret  ³ 3      4 ³  +5v Ret                   5 ³ L   H   L

            Ground  ³ 5      6 ³  DB0-                      6 ³ H   L   L

            Ground  ³ 7      8 ³  DB1-                      7 ³ L   L   L

            Ground  ³ 9      10³  DB2-

            Ground  ³ 11     12³  DB3-                      H = high

            Ground  ³ 13     14³  DB4-                      L = low

            Ground  ³ 15     16³  DB5-

     Connector Key  ³ nopin  18³  DB6-

            Ground  ³ 19     20³  DB7-

            Ground  ³ 21     22³  Parity-

            Ground  ³ 23     24³  TRMPWR

              ATN-  ³ 25     26³  BSY-

            Ground  ³ 27     28³  ACK-

              RST-  ³ 29     30³  MSG-

            Ground  ³ 31     32³  SEL-

              I/O-  ³ 33     34³  C/D-

            Ground  ³ 35     36³  REQ-

           +5v Ret  ³ 37     38³  +5v Ret

               +5v  ³ 39     40³  +5v

                    ÀÄÄÄÄÄÄÄÄÄÄÙ

                             ST-9235N

       UNFORMATTED CAPACITY _____________________

       FORMATTED CAPACITY (xx SECTORS) __________209.8

       ACTUATOR TYPE ____________________________ROTARY VOICE COIL

       TRACKS ___________________________________

       LOGICAL CYLINDERS ________________________985

       LOGICAL HEADS ____________________________13

       LOGICAL SECTORS PER TRACK ________________32

       HEADS ____________________________________6

       DISCS (2.5 in) ___________________________3

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (2,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______up to 16

       SPINDLE SPEED (RPM) ______________________3,449

       AVERAGE LATENCY (mSEC) ___________________8.69

       BUFFER ___________________________________128 Kbyte

       INTERFACE ________________________________SCSI

       BYTES PER TRACK __________________________

       SECTORS PER DRIVE ________________________409,760

       TPI (TRACKS PER INCH) ____________________2,750

       BPI (BITS PER INCH) ______________________45,500

       FCI (FLUX DENSITY) _______________________30,300

       AVERAGE ACCESS (ms) ______________________16

       SINGLE TRACK SEEK (ms) ___________________5

       MAX FULL SEEK (ms) _______________________27

       MTBF (power-on hours) Office _____________150,000

       SHOCK (G's) operating/nonoperating _______10/150

          NG model with 'SafeRite' ______________100/150

       POWER REQUIREMENTS: +5V START-UP (amps) __1.3

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________2.5

                           STANDBY ______________1.8

                           SHUTDOWN _____________1.08

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________0

       Physical:

                        Height (inches/mm):     0.75/19.05

                        Width  (inches/mm):     2.76/70.10

                        Depth  (inches/mm):     4.01/101.85

                        Weight    (ozs/kg):     7.25/0.21

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (08/17/93)


ST-9252N
ST-9252N, Filepro 250 SCSI (Trigger CFN250S)

                                      ÚÄ 40-pin I/O Connector (* see below)

                            TOP       ³

                                      ³                            1

                                                             o o o o

                              ÍPÍWÍAÍ :::::::::::.:::::::1 ÍÍø ø ø ø

                                                 ³

       pin-17 removed for keying ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ

Pin assignments for the 2.5" drive SCSI interface connector

     (signal)          (pin)          (signal)

                    ÚÄÄÄÄÄÄÄÄÄÄ¿                               pin

     Reserved (NC)  ³ 1      2 ³  Reserved (ND)                ID1 ID2 ID4

     Reserved (NC)  ³ 3      4 ³  Reserved (ND)            ID ÚÄÄÄÄÄÄÄÄÄÄÄ

              ID1-  ³ 5      6 ³  ID2-                      0 ³ H   H   H

              ID4-  ³ 7      8 ³  LED                       1 ³ L   H   H

                    ÀÄÄÄÄÄÄÄÄÄÄÙ                            2 ³ H   L   H

                    ÚÄÄÄÄÄÄÄÄÄÄ¿                            3 ³ L   L   H

               +5v  ³ 1      2 ³  +5v                       4 ³ H   H   L

           +5v Ret  ³ 3      4 ³  +5v Ret                   5 ³ L   H   L

            Ground  ³ 5      6 ³  DB0-                      6 ³ H   L   L

            Ground  ³ 7      8 ³  DB1-                      7 ³ L   L   L

            Ground  ³ 9      10³  DB2-

            Ground  ³ 11     12³  DB3-                      H = high

            Ground  ³ 13     14³  DB4-                      L = low

            Ground  ³ 15     16³  DB5-

     Connector Key  ³ nopin  18³  DB6-

            Ground  ³ 19     20³  DB7-

            Ground  ³ 21     22³  Parity-

            Ground  ³ 23     24³  TRMPWR

              ATN-  ³ 25     26³  BSY-

            Ground  ³ 27     28³  ACK-

              RST-  ³ 29     30³  MSG-

            Ground  ³ 31     32³  SEL-

              I/O-  ³ 33     34³  C/D-

            Ground  ³ 35     36³  REQ-

           +5v Ret  ³ 37     38³  +5v Ret

               +5v  ³ 39     40³  +5v

                    ÀÄÄÄÄÄÄÄÄÄÄÙ

                             ST-9252N

                 Filepro 250 SCSI (Trigger CFN250S)

       FORMATTED CAPACITY _______________________252.7

       ACTUATOR TYPE ____________________________VOICE COIL

       CYLINDERS __PHYSICAL______________________1339

       HEADS ______PHYSICAL______________________6

       DISCS (3.5 in) ___________________________3

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (1,7)

       INTERNAL TRANSFER RATE (Mbits/sec) _______18 to 28

       EXTERNAL TRANSFER RATE (Mbytes/sec) ______up to 6.0

       PIO MODE _________________________________2

       SPINDLE SPEED (RPM) ______________________4500

       AVERAGE LATENCY (mSEC) ___________________6.7

       BUFFER ___________________________________32K

        Read/Write Multiple, Read Look-Ahead,

        Multi-Segmented

       INTERFACE ________________________________SCSI

       SECTORS PER DRIVE (LBA mode) _____________493,626

       TPI (TRACKS PER INCH) ____________________2611

       BPI (KBITS PER INCH) _____________________58,230

       AVERAGE ACCESS (ms) ______________________12

       SINGLE TRACK SEEK (ms) ___________________2.6

       MAX FULL SEEK (ms) _______________________20

       MTBF (power-on hours) Office _____________150,000

       SHOCK (G's):

                operating (Read/Write) __________10

                abnormal ________________________

                nonoperating ____________________200

       ACOUSTICS (bels) (typ/max) _______________34/

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS:  +5V START-UP (amps) _1.0

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________1.1

                           IDLE _________________1.0

                           STANDBY ______________.20

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________0 or none

       Physical:

                        Height (inches/mm):   .77/19.5

                        Width  (inches/mm):  2.75/69.8

                        Depth  (inches/mm):  4.00/101.6

                        Weight     (oz/kg):   7.0/0.20

Already low-level formatted at the factory.

Seagate reserves the right to change, without notice, product

offerings or specifications. (03/13/96)


ST-9295N

                             ST-9295N

       UNFORMATTED CAPACITY _____________________

       FORMATTED CAPACITY (xx SECTORS) __________250.6

       AVERAGE SECTORS PER TRACK ________________ rounded down

       ACTUATOR TYPE ____________________________STRAIGHT ARM

       TRACKS ___________________________________

       CYLINDERS ________________________________(user)

       HEADS ____________________________________

       DISCS (2.5 in) ___________________________

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________ZBR RLL (2,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______up to 16

       SPINDLE SPEED (RPM) ______________________3,450

       AVERAGE LATENCY (mSEC) ___________________8.69

       BUFFER ___________________________________64 Kbyte

        Multisegmented cache

       INTERFACE ________________________________SCSI

       BYTES PER TRACK __________________________

       SECTORS PER DRIVE ________________________489,600

       TPI (TRACKS PER INCH) ____________________x,xxx

       BPI (BITS PER INCH) ______________________xx,xxx

       AVERAGE ACCESS (ms) ______________________16

       SINGLE TRACK SEEK (ms) ___________________5

       MAX FULL SEEK (ms) _______________________27

       MTBF (power-on hours) Office _____________150,000

       SHOCK (G's) operating/nonoperating _______10/150

       POWER REQUIREMENTS: +5V START-UP (amps) __1.2

       POWER MANAGEMENT (Watts):

                           ACTIVE _______________1.8

                           IDLE _________________0.7

                           STANDBY ______________0.17

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________AUTO

       IBM AT DRIVE TYPE ________________________0

       Physical:

                        Height (inches/mm):     0.75/19.05

                        Width  (inches/mm):     2.76/70.10

                        Depth  (inches/mm):     4.01/101.85

                        Weight    (ozs/kg):     7.25/0.21

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product

offerings or specifications. (12/08/92)


ST-41097J
ST-41097J  Elite-1.1

                             ST-41097J

                              Elite-1.1

       UNFORMATTED CAPACITY _____________________1,097

       FORMATTED CAPACITY (xx SECTORS) __________

       AVERAGE SECTORS PER TRACK (with spares)___

       ACTUATOR TYPE ____________________________STRAIGHT ARM

       TRACKS ___________________________________

       CYLINDERS ________________________________2,101

       HEADS ____________________________________17

       DISCS (5.25 in) __________________________10

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______22

       EXTERNAL TRANSFER RATE (mbytes/sec) ______2.75

       SPINDLE SPEED (RPM) ______________________5,400

       AVERAGE LATENCY (mSEC) ___________________5.56

       BUFFER ___________________________________

       INTERFACE ________________________________SMD O/E

       BYTES PER TRACK __________________________30,800

       SECTORS PER DRIVE ________________________

       BYTES PER CYLINDER _______________________523,600

       TPI (TRACKS PER INCH) ____________________

       BPI (BITS PER INCH) ______________________

       AREAL DENSITY (MBits/sq in) ______________

       AVERAGE ACCESS (ms) ______________________11.5

       SINGLE TRACK SEEK (ms) ___________________1.7

       MAX FULL SEEK (ms) _______________________22.5

       MTBF (power-on hours) Class A Room _______250,000

       MTBF (power-on hours) Office _____________150,000

       POWER DISSIPATION (watts) ________________

       POWER REQUIREMENTS:

                           +12V START-UP (amps) _

                           +12V TYPICAL (amps) __

                           +5V START-UP (amps) __

                           +5V TYPICAL (amps) ___

                           TYPICAL (watts) ______44

                           IDLE (watts) __ ______40

       USER MANUAL PART NUMBER __________________83327280

       REFERENCE MANUAL PART NUMBER _____________83327290

       OTHER ____________________________________dual port

       Physical:

                        Height (inches/mm):     3.25/82.6

                        Width  (inches/mm):     5.75/146.1

                        Depth  (inches/mm):     9.9/252.5

                        Weight    (lbs/kg):     9/4.1

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/23/91)


ST-41201J
ST-41201J (97500-12G) Elite-1.2

                             ST-41201J

                       (97500-12G) Elite-1.2

       UNFORMATTED CAPACITY _____________________1,200

       FORMATTED CAPACITY (xx SECTORS) __________

       AVERAGE SECTORS PER TRACK (with spares)___

       ACTUATOR TYPE ____________________________STRAIGHT ARM

       TRACKS ___________________________________

       CYLINDERS ________________________________2,101

       HEADS ____________________________________17

       DISCS (5.25 in) __________________________10

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______24

       EXTERNAL TRANSFER RATE (mbytes/sec) ______3

       SPINDLE SPEED (RPM) ______________________5,400

       AVERAGE LATENCY (mSEC) ___________________5.56

       BUFFER ___________________________________

       INTERFACE ________________________________SMD O/E

       BYTES PER TRACK __________________________33,600

       SECTORS PER DRIVE ________________________

       BYTES PER CYLINDER _______________________571,200

       TPI (TRACKS PER INCH) ____________________1,801

       BPI (BITS PER INCH) ______________________17,591-33,344

       AREAL DENSITY (MBits/sq in) ______________60.0

       AVERAGE ACCESS (ms) ______________________11.5

       SINGLE TRACK SEEK (ms) ___________________1.7

       MAX FULL SEEK (ms) _______________________22.5

       MTBF (power-on hours) Class A Room _______250,000

       MTBF (power-on hours) Office _____________150,000

       POWER DISSIPATION (watts) ________________50

       POWER REQUIREMENTS:

                           TYPICAL (watts) ______43

                           IDLE (watts) _________38

       USER MANUAL PART NUMBER __________________83327280

       REFERENCE MANUAL PART NUMBER _____________83327290

       OTHER ____________________________________Dual Access,

        Synchronized Spindles, Sweep Cycle Capability

       Physical:

                        Height (inches/mm):     3.25/82.6

                        Width  (inches/mm):     5.57/146.1

                        Depth  (inches/mm):     9.90/252.5

                        Weight    (lbs/kg):     9/4.1

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/23/91)


ST-6165J
ST-6165J (97150-160) FSD-160

                             ST-6165J

                         97150-160 FSD-160

       UNFORMATTED CAPACITY _____________________3,050

       FORMATTED CAPACITY (xx SECTORS) __________

       AVERAGE SECTORS PER TRACK (with spares)___165

       ACTUATOR TYPE ____________________________

       TRACKS ___________________________________

       CYLINDERS ________________________________823

       HEADS ____________________________________10

       DISCS (9 in) _____________________________

       MEDIA TYPE _______________________________OXIDE

       HEAD TYPE ________________________________FERRITE CORE

       RECORDING METHOD _________________________RLL (2,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______1.209

                              (mhz/sec) _________9.67

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________

       INTERFACE ________________________________SMD

       BYTES PER TRACK __________________________20,160

       SECTORS PER DRIVE ________________________

       BYTES PER CYLINDER _______________________

       TPI (TRACKS PER INCH) ____________________551

       BPI (BITS PER INCH) ______________________6,117-9,492

       AREAL DENSITY (MBits/sq in) ______________

       AVERAGE ACCESS (ms) ______________________30

       SINGLE TRACK SEEK (ms) ___________________7

       MAX FULL SEEK (ms) _______________________55

       MTBF (power-on hours) Class A Room _______

       MTBF (power-on hours) Office _____________10,000

       POWER DISSIPATION (watts) ________________220

       POWER REQUIREMENTS:

                           TYPICAL (watts) ______

                           MAXIMUM (watts) ______

       USER MANUAL PART NUMBER __________________83324500

       THEORY/MAINT. MANUAL PART NUMBER _________83324510

       DIAGRAMS MANUAL PART NUMBER ______________83324640

       OTHER ____________________________________Dual Access,

        Remote/Integral Power Supply Option

       Physical:

                        Height (inches/mm):     10.20/

                        Width  (inches/mm):     8.50/

                        Depth  (inches/mm):     30.0/

                        Weight    (lbs/kg):     82/

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/23/91)


ST-6315J
ST-6315J (97150-300) FSD-300

                             ST-6315J

                        97150-300 FSD-300

       UNFORMATTED CAPACITY _____________________315

       FORMATTED CAPACITY (xx SECTORS) __________

       AVERAGE SECTORS PER TRACK (with spares)___

       ACTUATOR TYPE ____________________________

       TRACKS ___________________________________

       CYLINDERS ________________________________823

       HEADS ____________________________________19

       DISCS (9 in) _____________________________

       MEDIA TYPE _______________________________OXIDE

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________MFM

       INTERNAL TRANSFER RATE (mbits/sec) _______1.209

                              (mhz/sec) _________9.67

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________

       INTERFACE ________________________________SMD E

       BYTES PER TRACK __________________________20,160

       SECTORS PER DRIVE ________________________

       BYTES PER CYLINDER _______________________

       TPI (TRACKS PER INCH) ____________________1,040

       BPI (BITS PER INCH) ______________________6,117-10,040

       AREAL DENSITY (MBits/sq in) ______________9.5

       AVERAGE ACCESS (ms) ______________________20

       SINGLE TRACK SEEK (ms) ___________________5

       MAX FULL SEEK (ms) _______________________45

       MTBF (power-on hours) Class A Room _______

       MTBF (power-on hours) Office _____________30,000

       POWER DISSIPATION (watts) ________________225

       POWER REQUIREMENTS:

                           TYPICAL (watts) ______

                           MAXIMUM (watts) ______

       USER MANUAL PART NUMBER __________________83327120

       THEORY/MAINT. MANUAL PART NUMBER _________83327340

       DIAGRAMS MANUAL PART NUMBER ______________83327020

       PARTS MANUAL PART NUMBER _________________83327110

       OTHER ____________________________________Dual Access,

        Sweep Cycle Capability, Plug Compatible with 9766,

        Remote/Integral Power Supply Option

       Physical:

                        Height (inches/mm):     10.20/

                        Width  (inches/mm):     8.50/

                        Depth  (inches/mm):     30.0/

                        Weight    (lbs/kg):     82/

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/23/91)


ST-6344J
ST-6344J (97150-340) FSD-340

                             ST-6344J

                         97150-340 FSD-340

       UNFORMATTED CAPACITY _____________________344

       FORMATTED CAPACITY (xx SECTORS) __________

       AVERAGE SECTORS PER TRACK (with spares)___

       ACTUATOR TYPE ____________________________

       TRACKS ___________________________________

       CYLINDERS ________________________________711

       HEADS ____________________________________24

       DISCS (9 in) _____________________________7

       MEDIA TYPE _______________________________OXIDE

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________MFM

       EXTERNAL TRANSFER RATE (mbytes/sec) ______1.209

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________

       INTERFACE ________________________________SMD

       BYTES PER TRACK __________________________20,160

       SECTORS PER DRIVE ________________________

       BYTES PER CYLINDER _______________________201,600

       TPI (TRACKS PER INCH) ____________________960

       BPI (BITS PER INCH) ______________________6,111-10,027

       AREAL DENSITY (MBits/sq in) ______________9.5

       AVERAGE ACCESS (ms) ______________________18

       SINGLE TRACK SEEK (ms) ___________________5

       MAX FULL SEEK (ms) _______________________40

       MTBF (power-on hours) Class A Room _______

       MTBF (power-on hours) Office _____________30,000

       POWER DISSIPATION (watts) ________________225

       USER MANUAL PART NUMBER __________________83327120

       THEORY/MAINT. MANUAL PART NUMBER _________83327340

       DIAGRAMS MANUAL PART NUMBER ______________83327020

       PARTS MANUAL PART NUMBER _________________83327110

       OTHER ____________________________________Dual Access,

        Sweep Cycle Capability, Remote/Integral Power Supply

       Physical:

                        Height (inches/mm):     10.02/259

                        Width  (inches/mm):     8.50/216

                        Depth  (inches/mm):     29.9/757 w/ power

                        Depth  (inches/mm):     24.5/641 w/o power

                        Weight    (lbs/kg):     82/36.4  w/ power

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/23/91)


ST-6515J
ST-6515J (97150-500) FSD-515

                             ST-6515J

                        97150-500 FSD-515

       UNFORMATTED CAPACITY _____________________516

       FORMATTED CAPACITY (xx SECTORS) __________

       AVERAGE SECTORS PER TRACK (with spares)___

       ACTUATOR TYPE ____________________________

       TRACKS ___________________________________

       CYLINDERS ________________________________711

       HEADS ____________________________________24

       DISCS (9 in) _____________________________7

       MEDIA TYPE _______________________________OXIDE

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       EXTERNAL TRANSFER RATE (mbytes/sec) ______1.80

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________

       INTERFACE ________________________________SMD E

       BYTES PER TRACK __________________________30,240

       SECTORS PER DRIVE ________________________

       BYTES PER CYLINDER _______________________302,400

       TPI (TRACKS PER INCH) ____________________960

       BPI (BITS PER INCH) ______________________9,167-15,040

       AREAL DENSITY (MBits/sq in) ______________14.6

       AVERAGE ACCESS (ms) ______________________18

       SINGLE TRACK SEEK (ms) ___________________5

       MAX FULL SEEK (ms) _______________________40

       MTBF (power-on hours) Class A Room _______

       MTBF (power-on hours) Office _____________30,000

       POWER DISSIPATION (watts) ________________225

       USER MANUAL PART NUMBER __________________83327120

       THEORY/MAINT. MANUAL PART NUMBER _________83327340

       DIAGRAMS MANUAL PART NUMBER ______________83327020

       PARTS MANUAL PART NUMBER _________________83327110

       OTHER ____________________________________Dual Access,

        Sweep Cycle Capability, Remote/Integral Power Supply

       Physical:

                        Height (inches/mm):     10.20/259

                        Width  (inches/mm):     8.50/216

                        Depth  (inches/mm):     30.0/757

                        Weight    (lbs/kg):     82/36.4

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/23/91)


ST-683J
ST-683J (97100-80) RSD-80

                             ST-683J

                         97100-80 RSD-80

       UNFORMATTED CAPACITY _____________________83

       FORMATTED CAPACITY (xx SECTORS) __________

       AVERAGE SECTORS PER TRACK (with spares)___

       ACTUATOR TYPE ____________________________

       TRACKS ___________________________________

       CYLINDERS ________________________________823

       HEADS ____________________________________5

       DISCS (9 in) _____________________________

       MEDIA TYPE _______________________________OXIDE

       HEAD TYPE ________________________________FERRITE CORE

       RECORDING METHOD _________________________RLL (2,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______1.209

                              (mhz/sec) _________9.67

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________

       INTERFACE ________________________________SMD

       BYTES PER TRACK __________________________20,160

       SECTORS PER DRIVE ________________________

       BYTES PER CYLINDER _______________________

       TPI (TRACKS PER INCH) ____________________550

       BPI (BITS PER INCH) ______________________6,283-9,994

       AREAL DENSITY (MBits/sq in) ______________

       AVERAGE ACCESS (ms) ______________________30

       SINGLE TRACK SEEK (ms) ___________________7

       MAX FULL SEEK (ms) _______________________55

       MTBF (power-on hours) Class A Room _______

       MTBF (power-on hours) Office _____________8,000

       POWER DISSIPATION (watts) ________________250

       POWER REQUIREMENTS:

                           TYPICAL (watts) ______

                           MAXIMUM (watts) ______

       USER AND PARTS MANUAL PART NUMBER ________83324480

       THEORY/MAINT. MANUAL PART NUMBER _________83324490

       DIAGRAMS MANUAL PART NUMBER ______________83324630

       OTHER ____________________________________Dual Access,

        Remote/Integtral Power Supply, Removable Data Pack

        model # 1209

       Physical:

                        Height (inches/mm):     10.20/

                        Width  (inches/mm):     8.50/

                        Depth  (inches/mm):     30.0/

                        Weight    (lbs/kg):     72/

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/23/91)


ST-81123J
ST-81123J (97200-1130) Sabre 5

                             ST-81123J

                       97200-1130 Sabre 5

       UNFORMATTED CAPACITY _____________________1,123

       FORMATTED CAPACITY (xx SECTORS) __________

       AVERAGE SECTORS PER TRACK (with spares)___

       ACTUATOR TYPE ____________________________STRAIGHT ARM

       TRACKS ___________________________________

       CYLINDERS ________________________________1,635

       HEADS ____________________________________15

       DISCS (8 in) _____________________________9

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       EXTERNAL TRANSFER RATE (mbytes/sec) ______2.75

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________

       INTERFACE ________________________________SMD O/E

       BYTES PER TRACK __________________________45,792

       SECTORS PER DRIVE ________________________

       BYTES PER CYLINDER _______________________686,880

       TPI (TRACKS PER INCH) ____________________1,289

       BPI (BITS PER INCH) ______________________15,507-22,955

       AREAL DENSITY (MBits/sq in) ______________29.5

       AVERAGE ACCESS (ms) ______________________15

       SINGLE TRACK SEEK (ms) ___________________4

       MAX FULL SEEK (ms) _______________________30

       MTBF (power-on hours) Class A Room _______250,000

       MTBF (power-on hours) Office _____________150,000

       POWER DISSIPATION (watts/BTU) ____________95/324.2

       USER MANUAL PART NUMBER __________________83325710

       MAINT. MANUAL PART NUMBER ________________83325720

       PARTS MANUAL PART NUMBER _________________83325700

       DIAGRAMS MANUAL PART NUMBER ______________83325730

       THEORY MANUAL PART NUMBER ________________83325690

       OTHER ____________________________________Dual Access,

        Synchronized Spindles, Sweep Cycle Capability

       Physical:

                        Height (inches/mm):     4.75/120.65

                        Width  (inches/mm):     8.50/216

                        Depth  (inches/mm):     14.7/373.38

                        Weight    (lbs/kg):     32/15

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/23/91)


ST-81236J
ST-81236J (97200-12G) Sabre 5

                             ST-81236J

                         97200-12G Sabre 5

       UNFORMATTED CAPACITY _____________________1,236

       FORMATTED CAPACITY (xx SECTORS) __________

       AVERAGE SECTORS PER TRACK (with spares)___

       ACTUATOR TYPE ____________________________STRAIGHT ARM

       TRACKS ___________________________________

       CYLINDERS ________________________________1,635

       HEADS ____________________________________15

       DISCS (8 in) _____________________________9

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       EXTERNAL TRANSFER RATE (mbytes/sec) ______3.0

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________

       INTERFACE ________________________________SMD O/E

       BYTES PER TRACK __________________________50,400

       SECTORS PER DRIVE ________________________

       BYTES PER CYLINDER _______________________756,000

       TPI (TRACKS PER INCH) ____________________1,289

       BPI (BITS PER INCH) ______________________16,420-24,307

       AREAL DENSITY (MBits/sq in) ______________32.6

       AVERAGE ACCESS (ms) ______________________15

       SINGLE TRACK SEEK (ms) ___________________4

       MAX FULL SEEK (ms) _______________________30

       MTBF (power-on hours) Class A Room _______250,000

       MTBF (power-on hours) Office _____________150,000

       POWER DISSIPATION (watts/BTU) ____________95/324.2

       POWER REQUIREMENTS:

                           TYPICAL (watts) ______

                           MAXIMUM (watts) ______

       USER MANUAL PART NUMBER __________________83325710

       DIAGRAMS MANUAL PART NUMBER ______________83325730

       MAINT. MANUAL PART NUMBER ________________83325720

       PARTS MANUAL PART NUMBER _________________83325700

       THEORY MANUAL PART NUMBER ________________83325690

       OTHER ____________________________________Dual Access,

        Synchronized Spindles, Sweep Cycle Capability

       Physical:

                        Height (inches/mm):     4.75/120.65

                        Width  (inches/mm):     8.50/216

                        Depth  (inches/mm):     14.7/373.38

                        Weight    (lbs/kg):     32/15

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/23/91)


ST-82030J
ST-82030J  Sabre 6

                             ST-82030J

                             Sabre 6

       UNFORMATTED CAPACITY _____________________2,030

       FORMATTED CAPACITY (xx SECTORS) __________

       AVERAGE SECTORS PER TRACK (with spares)___

       ACTUATOR TYPE ____________________________STRAIGHT ARM

       TRACKS ___________________________________

       CYLINDERS ________________________________2,120

       HEADS ____________________________________19

       DISCS (8 in) _____________________________11

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       EXTERNAL TRANSFER RATE (mbytes/sec) ______3.0

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________

       INTERFACE ________________________________SMD O/E

       BYTES PER TRACK __________________________50,400

       SECTORS PER DRIVE ________________________

       BYTES PER CYLINDER _______________________957,600

       TPI (TRACKS PER INCH) ____________________1,880

       BPI (BITS PER INCH) ______________________20,789

       AVERAGE ACCESS (ms) ______________________11

       SINGLE TRACK SEEK (ms) ___________________2

       MAX FULL SEEK (ms) _______________________26

       MTBF (power-on hours) Class A Room _______250,000

       MTBF (power-on hours) Office _____________150,000

       POWER DISSIPATION (watts/BTU) ____________95/324.2

       USER MANUAL PART NUMBER __________________83327230

       OTHER ____________________________________Dual Access,

        Synchronized Spindles, Sweep Cycle Capability

       Physical:

                        Height (inches/mm):     4.75/120.65

                        Width  (inches/mm):     8.50/216

                        Depth  (inches/mm):     14.7/373.3

                        Weight    (lbs/kg):     32/13

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/23/91)


ST-82038J
ST-82038J  Sabre 6

                             ST-82038J

                             Sabre 6

       UNFORMATTED CAPACITY _____________________2,038

       FORMATTED CAPACITY (xx SECTORS) __________

       AVERAGE SECTORS PER TRACK (with spares)___

       ACTUATOR TYPE ____________________________STRAIGHT ARM

       TRACKS ___________________________________

       CYLINDERS ________________________________2,611

       HEADS ____________________________________19

       DISCS (8 in) _____________________________11

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       EXTERNAL TRANSFER RATE (mbytes/sec) ______2.4

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________

       INTERFACE ________________________________SMD E

       BYTES PER TRACK __________________________41,088

       SECTORS PER DRIVE ________________________

       BYTES PER CYLINDER _______________________780,672

       TPI (TRACKS PER INCH) ____________________1,880

       BPI (BITS PER INCH) ______________________20,789

       AVERAGE ACCESS (ms) ______________________12

       SINGLE TRACK SEEK (ms) ___________________2

       MAX FULL SEEK (ms) _______________________26

       MTBF (power-on hours) Class A Room _______250,000

       MTBF (power-on hours) Office _____________150,000

       POWER DISSIPATION (watts/BTU) ____________95/324.2

       USER MANUAL PART NUMBER __________________83327230

       OTHER ____________________________________Dual Access,

        Synchronized Spindles, Sweep Cycle Capability

       Physical:

                        Height (inches/mm):     4.75/120.65

                        Width  (inches/mm):     8.50/216

                        Depth  (inches/mm):     14.7/373.3

                        Weight    (lbs/kg):     28/13

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/23/91)


ST-82272J
ST-82272J (97200-23G) Sabre 6

                             ST-82272J

                         97200-23G Sabre 6

       UNFORMATTED CAPACITY _____________________2,272

       FORMATTED CAPACITY (xx SECTORS) __________

       AVERAGE SECTORS PER TRACK (with spares)___

       ACTUATOR TYPE ____________________________STRAIGHT ARM

       TRACKS ___________________________________

       CYLINDERS ________________________________2,611

       HEADS ____________________________________19

       DISCS (8 in) _____________________________11

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       EXTERNAL TRANSFER RATE (mbytes/sec) ______2.75

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________

       INTERFACE ________________________________SMD E

       BYTES PER TRACK __________________________45,792

       SECTORS PER DRIVE ________________________

       BYTES PER CYLINDER _______________________870,048

       TPI (TRACKS PER INCH) ____________________1,880

       BPI (BITS PER INCH) ______________________23,099

       AVERAGE ACCESS (ms) ______________________12

       SINGLE TRACK SEEK (ms) ___________________2

       MAX FULL SEEK (ms) _______________________26

       MTBF (power-on hours) Class A Room _______250,000

       MTBF (power-on hours) Office _____________150,000

       POWER DISSIPATION (watts/BTU) ____________95/324.2

       USER MANUAL PART NUMBER __________________83327200

       MAINT. MANUAL PART NUMBER ________________83327230

       PARTS MANUAL PART NUMBER _________________83327240

       THEORY MANUAL PART NUMBER ________________83327530

       OTHER ____________________________________Dual Access,

        Synchronized Spindles, Sweep Cycle Capability

       Physical:

                        Height (inches/mm):     4.75/120.65

                        Width  (inches/mm):     8.50/216

                        Depth  (inches/mm):     14.7/373.3

                        Weight    (lbs/kg):     28/13

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/23/91)


ST-82500J
ST-82500J (97200-25G) Sabre 6

                             ST-82500J

                         97200-25G Sabre 6

       UNFORMATTED CAPACITY _____________________2,500

       FORMATTED CAPACITY (xx SECTORS) __________

       AVERAGE SECTORS PER TRACK (with spares)___

       ACTUATOR TYPE ____________________________STRAIGHT ARM

       TRACKS ___________________________________

       CYLINDERS ________________________________2,611

       HEADS ____________________________________19

       DISCS (8 in) _____________________________11

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       EXTERNAL TRANSFER RATE (mbytes/sec) ______3.04

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________

       INTERFACE ________________________________SMD O/E

       BYTES PER TRACK __________________________50,400

       SECTORS PER DRIVE ________________________

       BYTES PER CYLINDER _______________________957,600

       TPI (TRACKS PER INCH) ____________________1,880

       BPI (BITS PER INCH) ______________________24,200

       AREAL DENSITY (MBits/sq in) ______________

       AVERAGE ACCESS (ms) ______________________12

       SINGLE TRACK SEEK (ms) ___________________2

       MAX FULL SEEK (ms) _______________________26

       MTBF (power-on hours) Class A Room _______250,000

       MTBF (power-on hours) Office _____________150,000

       POWER DISSIPATION (watts/BTU) ____________95/324.2

       USER MANUAL PART NUMBER __________________83327200

       MAINT. MANUAL PART NUMBER ________________83327230

       PARTS MANUAL PART NUMBER _________________83327240

       THEORY MANUAL PART NUMBER ________________83327530

       OTHER ____________________________________Dual Access,

        Synchronized Spindles, Sweep Cycle Capability

       Physical:

                        Height (inches/mm):     4.75/120.65

                        Width  (inches/mm):     8.50/216

                        Depth  (inches/mm):     14.7/373.3

                        Weight    (lbs/kg):     28/13

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/23/91)


ST-83073J
ST-83073J  Sabre 7

                             ST-83073J

                              Sabre 7

       UNFORMATTED CAPACITY _____________________3,073

       FORMATTED CAPACITY (xx SECTORS) __________

       AVERAGE SECTORS PER TRACK (with spares)___

       ACTUATOR TYPE ____________________________STRAIGHT ARM

       TRACKS ___________________________________

       CYLINDERS ________________________________2,655

       HEADS ____________________________________19

       DISCS (8 in) _____________________________

       MEDIA TYPE _______________________________THIN FILM

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________RLL (1,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______4.33

                              (mhz/sec) _________34.66

       SPINDLE SPEED (RPM) ______________________4,235

       AVERAGE LATENCY (mSEC) ___________________7.08

       BUFFER ___________________________________

       INTERFACE ________________________________SMD O/E

       BYTES PER TRACK __________________________60,928

       SECTORS PER DRIVE ________________________

       BYTES PER CYLINDER _______________________

       TPI (TRACKS PER INCH) ____________________1,880

       BPI (BITS PER INCH) ______________________30,768

       AVERAGE ACCESS (ms) ______________________12

       SINGLE TRACK SEEK (ms) ___________________2.2

       MAX FULL SEEK (ms) _______________________24

       MTBF (power-on hours) Class A Room _______

       MTBF (power-on hours) Office _____________150,000

       POWER DISSIPATION (watts) ________________110

       POWER REQUIREMENTS:

                           +12V START-UP (amps) _

                           +12V TYPICAL (amps) __

                           +5V START-UP (amps) __

                           +5V TYPICAL (amps) ___

                           TYPICAL (watts) ______

                           MAXIMUM (watts) ______

       WRITE PRECOMP (cyl) ______________________N/A

       REDUCED WRITE CURRENT (cyl) ______________N/A

       LANDING ZONE (cyl) _______________________

       USER MANUAL PART NUMBER __________________

       OTHER ____________________________________Dual Access,

        Synchronized Spindles, Sweep Cycle Capability

       Physical:

                        Height (inches/mm):     4.75/

                        Width  (inches/mm):     8.50/

                        Depth  (inches/mm):     14.7/

                        Weight    (lbs/kg):     32/

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/23/91)


ST-8368J
ST-8368J (97200-368) Sabre 368

                             ST-8368J

                       97200-368 Sabre 368

       UNFORMATTED CAPACITY _____________________368

       FORMATTED CAPACITY (xx SECTORS) __________

       AVERAGE SECTORS PER TRACK (with spares)___

       ACTUATOR TYPE ____________________________STRAIGHT ARM

       TRACKS ___________________________________

       CYLINDERS ________________________________1,217

       HEADS ____________________________________10

       DISCS (8 in) _____________________________

       MEDIA TYPE _______________________________OXIDE

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______1.80

                              (mhz/sec) _________14.52

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________

       INTERFACE ________________________________SMD E

       BYTES PER TRACK __________________________30,240

       SECTORS PER DRIVE ________________________

       BYTES PER CYLINDER _______________________

       TPI (TRACKS PER INCH) ____________________960

       BPI (BITS PER INCH) ______________________10,132-15,185

       AREAL DENSITY (MBits/sq in) ______________14.5

       AVERAGE ACCESS (ms) ______________________18

       SINGLE TRACK SEEK (ms) ___________________5

       MAX FULL SEEK (ms) _______________________35

       MTBF (power-on hours) Class A Room _______

       MTBF (power-on hours) Office _____________35,000

       POWER DISSIPATION (watts) ________________85

       POWER REQUIREMENTS:

                           TYPICAL (watts) ______

                           MAXIMUM (watts) ______

       USERPARTS MANUAL PART NUMBER _____________83325410

       THEORY/MAINT. MANUAL PART NUMBER _________83325420

       DIAGRAMS MANUAL PART NUMBER ______________83325430

       OTHER ____________________________________Dual Access,

        Sweep Cycle Capability

       Physical:

                        Height (inches/mm):     4.75/

                        Width  (inches/mm):     8.50/

                        Depth  (inches/mm):     14.7/

                        Weight    (lbs/kg):     28/

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/23/91)


ST-8500J
ST-8500J (97200-500) Sabre 736

                             ST-8500J

                       97200-500 Sabre 736

       UNFORMATTED CAPACITY _____________________500

       FORMATTED CAPACITY (xx SECTORS) __________

       AVERAGE SECTORS PER TRACK (with spares)___

       ACTUATOR TYPE ____________________________STRAIGHT ARM

       TRACKS ___________________________________

       CYLINDERS ________________________________1,217

       HEADS ____________________________________10

       DISCS (8 in) _____________________________

       MEDIA TYPE _______________________________OXIDE

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______2.46

                              (mhz/sec) _________19.72

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________

       INTERFACE ________________________________SMD E

       BYTES PER TRACK __________________________41,088

       SECTORS PER DRIVE ________________________

       BYTES PER CYLINDER _______________________

       TPI (TRACKS PER INCH) ____________________960

       BPI (BITS PER INCH) ______________________13,387-19,816

       AREAL DENSITY (MBits/sq in) ______________19.2

       AVERAGE ACCESS (ms) ______________________18

       SINGLE TRACK SEEK (ms) ___________________5

       MAX FULL SEEK (ms) _______________________35

       MTBF (power-on hours) Class A Room _______

       MTBF (power-on hours) Office _____________30,000

       POWER DISSIPATION (watts) ________________85

       POWER REQUIREMENTS:

                           TYPICAL (watts) ______

                           MAXIMUM (watts) ______

       USER/PARTS MANUAL PART NUMBER ____________83325410

       THEORY/MAINT. MANUAL PART NUMBER _________83325420

       DIAGRAMS MANUAL PART NUMBER ______________83325430

       OTHER ____________________________________Dual Access,

        Sweep Cycle Capability

       Physical:

                        Height (inches/mm):     4.75/

                        Width  (inches/mm):     8.50/

                        Depth  (inches/mm):     14.7/

                        Weight    (lbs/kg):     28/

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/23/91)


ST-8741J
ST-8741J (97200-736) Sabre 736

                             ST-8741J

                       97200-736 Sabre 736

       UNFORMATTED CAPACITY _____________________741

       FORMATTED CAPACITY (xx SECTORS) __________

       AVERAGE SECTORS PER TRACK (with spares)___

       ACTUATOR TYPE ____________________________STRAIGHT ARM

       TRACKS ___________________________________

       CYLINDERS ________________________________1,635

       HEADS ____________________________________15

       DISCS (8 in) _____________________________

       MEDIA TYPE _______________________________OXIDE

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       INTERNAL TRANSFER RATE (mbits/sec) _______1.80

                              (mhz/sec) _________14.52

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________

       INTERFACE ________________________________SMD E

       BYTES PER TRACK __________________________30,240

       SECTORS PER DRIVE ________________________

       BYTES PER CYLINDER _______________________

       TPI (TRACKS PER INCH) ____________________1,289

       BPI (BITS PER INCH) ______________________10,032-14,981

       AREAL DENSITY (MBits/sq in) ______________19.5

       AVERAGE ACCESS (ms) ______________________15

       SINGLE TRACK SEEK (ms) ___________________4

       MAX FULL SEEK (ms) _______________________30

       MTBF (power-on hours) Class A Room _______

       MTBF (power-on hours) Office _____________50,000

       POWER DISSIPATION (watts) ________________95

       POWER REQUIREMENTS:

                           TYPICAL (watts) ______

                           MAXIMUM (watts) ______

       USER MANUAL PART NUMBER __________________83325710

       PARTS MANUAL PART NUMBER _________________83325700

       MAINT. MANUAL PART NUMBER ________________83325720

       THEORY MANUAL PART NUMBER ________________83325690

       DIAGRAMS MANUAL PART NUMBER ______________83325730

       OTHER ____________________________________Dual Access,

        Sweep Cycle Capability

       Physical:

                        Height (inches/mm):     4.75/

                        Width  (inches/mm):     8.50/

                        Depth  (inches/mm):     14.7/

                        Weight    (lbs/kg):     32/

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/23/91)


ST-8851J
ST-8851J (97200-850) Sabre 4

                             ST-8851J

                       97200-850 Sabre 4

       UNFORMATTED CAPACITY _____________________851

       FORMATTED CAPACITY (xx SECTORS) __________

       AVERAGE SECTORS PER TRACK (with spares)___

       ACTUATOR TYPE ____________________________STRAIGHT ARM

       TRACKS ___________________________________

       CYLINDERS ________________________________1,381

       HEADS ____________________________________15

       DISCS (8 in) _____________________________9

       MEDIA TYPE _______________________________OXIDE

       HEAD TYPE ________________________________THIN FILM

       RECORDING METHOD _________________________RLL (2,7)

       EXTERNAL TRANSFER RATE (mbytes/sec) ______2.46

       SPINDLE SPEED (RPM) ______________________3,600

       AVERAGE LATENCY (mSEC) ___________________8.33

       BUFFER ___________________________________

       INTERFACE ________________________________SMD O/E

       BYTES PER TRACK __________________________41,088

       SECTORS PER DRIVE ________________________

       BYTES PER CYLINDER _______________________616,320

       TPI (TRACKS PER INCH) ____________________1,089

       BPI (BITS PER INCH) ______________________13,387-19,816

       AREAL DENSITY (MBits/sq in) ______________21.6

       AVERAGE ACCESS (ms) ______________________15

       SINGLE TRACK SEEK (ms) ___________________4

       MAX FULL SEEK (ms) _______________________30

       MTBF (power-on hours) Class A Room _______100,000

       MTBF (power-on hours) Office _____________100,000

       POWER DISSIPATION (watts/BTU) ____________95/324.2

       POWER REQUIREMENTS:

                           TYPICAL (watts) ______

                           MAXIMUM (watts) ______

       USER MANUAL PART NUMBER __________________83325710

       PARTS MANUAL PART NUMBER _________________83325700

       MAINT. MANUAL PART NUMBER ________________83325720

       THEORY MANUAL PART NUMBER ________________83325690

       DIAGRAMS MANUAL PART NUMBER ______________83325730

       OTHER ____________________________________Dual Access,

        Sweep Cycle Capability

       Physical:

                        Height (inches/mm):     4.75/120.65

                        Width  (inches/mm):     8.50/216

                        Depth  (inches/mm):     14.7/373.38

                        Weight    (lbs/kg):     32/15

Seagate reserves the right to change, without notice, product

offerings or specifications. (10/23/91)


Tshoot Top
 	Basic Troubleshooting

Read Me First

Index

(note 3/1995: The material covered in this section is outdated

and will be upgraded in the next revisions.)


 Index

 6_0 Drive Installation Trouble Shooting Introduction

 6_1 Power On Failures

 6_2 Low-level Format Errors

 6_3 Partitioning (FDISK) Errors

 6_4 System Format

 6_5 General Errors

 6_6 Transfer rate and Seek time Access time Problems

 6_7 SCSI Specific Problems

 6_8 Software


 6_1

6_1 Power On Failures

         1. System doesn't recognize the presence of the drive.

         2. Dealer formatted the drive in his shop. You installed drive

         but now it doesn't come up at all.

         3. The screen goes blank whenever I power up the system.

         4. In an AT class system, the drive LED is always on.

         5. 1701 ERROR

         6. 1780 or 1781 ERROR

         7. 1790 or 1791 ERROR

         8. AT interface drive spins up after power, then it spins back

         down.

         9. AT interface does not spin up after power.


 6_2

6_2 Low-level Format Errors

         1. Low-level format takes too long or hangs. Excessive errors.

         Code 20 or 80. (controller codes) or Unsuccessful format.

         2. Entering the DEBUG address fails to obtain the low-level

         format menu.

         3. "Drive not Ready" error message.

         4. "Sector not found" error message.

         5. Low-level Format hangs on a specific Head/Cylinder/Sector.


 6_3

6_3 Partitioning (FDISK) Errors

         1. "No Fixed Disk Present"

         2. Hangs in FDISK or fails to create or save partition record.

         3. "Hard Disk Controller Failure" or very many defect in last

         logical partition.


 6_4

6_4 System Format

         1. High level format takes too long .

         2. Drive doesn't format to full capacity (DOS partitions

         only).

         3. Do not get full capacity from large capacity drive, using

         partitioning software.

         4. Formatted with Disk Manager, cannot recognize D, E, F

         (drives above C:).

         5. "Disk Boot Failure", "non system disk", or "No ROM Basic -

         SYSTEM HALTED"  error messages.


 6_5

6_5 General Errors

         1. Random data, seek, or format errors.

         2. Error while installing a second drive of a different

         interface, or system doesn't boot after installation of

         second controller.

         3. "Bad or Missing Command Interpreter" error message.

         4. Should I park my drive?

         5. CheckDisk reports bytes in "Bad Sectors".

         6. "Error reading Drive C:"  type error message.

         7. "Track 0 not found" error message.


 6_6

6_6 Transfer rate and Seek time Access time Problems

         1. Average access time test longer than specified.

         2. Slower data transfer rate than specified.


 6_7

6_7 SCSI Specific Problems

         1. No ROM ID message to screen on boot up.

         2. 1780, 1781, 1790, 1791 errors.

         3. No SCSI device found.

         4. SCSI drive type for my AT system.

         5. Series of 1 to 7 drive LED flashes at power-on and drive

         doesn't work.


 6_8

6_8 Software

         1. Newly installed software causes problems or doesn't

         operate properly.

         2. Need device driver for the drive.

         3. DOS works OK but other Operating System doesn't.


 6_0

6_0 Drive Installation Trouble Shooting

The information presented in this guide is for general reference.  It

is not intended to be a complete reference of computer or hard disc

drive troubleshooting information, however, the solutions given below

account for the vast majority of questions received by Seagate

Technical Support.

Please read this entire section before contacting your dealer or

distributor for additional technical support.

Comments about this guide may be left with the system operator on the

Seagate Technical Support Bulletin Board service.  International phone

numbers are listed on page 2.

Before checking for specific problems with the installation, please

verify the following:

        * Check the Setup and Configuration sections in the drive and

          controller Installation Guides for possible oversights in

          user configuration.

        * Interface and controller cables are fragile and should be

          handled with care. Make sure all cables in system are

          functioning properly and connected as specified.

        * Make sure all cards are firmly seated in their slots.

        * Make sure system power supply has adequate power for all

          installed devices.

        * Always have current backup of your data.


 6_1_1

6_1 Power On Failures

----------------------

1. System doesn't recognize the presence of the drive.

        i) Check all cables for pin-1 to pin-1 orientation.

        ii) Verify that the drive spins up. Keep in mind that many

         drives are very quiet and hard to hear.

        iii) Check power supply for adequate output.

        iv) Make sure controller is the correct type needed for the

         interface of the drive and that the controller is correctly

         configured for your drive.

        v) In AT systems, confirm that the correct CMOS drive type is

         used.

        vi) Check drive select or drive ID jumpers.

        vii) Check the drive select jumper is correct for the number

         of drives in your system and/or for the type of controller

         cable being used.

        viii) Check for either BIOS memory address, port or interrupt

         conflicts with controller from other devices. Go to a bare

         bones system and add one device at a time until the conflict

         resurfaces.

        ix) Verify that you are using a hard drive 34-pin control

         cable. If using twisted control cable and 7 wires are

         twisted, then you are using floppy drive cable.

        x) Check to see if a warm boots works.

        xi) Try slowing down the system speed or bus speed.


 6_1_2

2. Dealer formatted the drive in his shop. You installed drive but now

it doesn't come up at all.

        Refer to 6_1_1, then:

        i) Make sure that the DOS version used to partition and

         high-level format the drive is consistent with your system.

        ii) If partitioning software was used, make sure that the same

         drive type in CMOS is used by using the software in the

         manual mode.

        iii) If using an AT Bus drive in translation mode , make sure

         the same translation parameters are used.

        iv) Check that the same controller was used by the dealer as

         the one in your system.

        v) Verify that the same kind of cables were used at the

         dealer.


 6_1_3

3. The screen goes blank whenever I power up the system.

        Immediately on power up:

        i) Check that the power supply can handle drive power

         requirements.

        ii) Try removing the new controller or host adapter to see if

         problem resolves; indicating a defective adapter or hardware

         conflict.

        iii) Check that monitor is plugged in and turned on.

        iv) Check that the video card is operational.

        After P.O.S.T. (Power On Self Test):

        v) Boot from a floppy disk and verify that the primary DOS

         partition is active and that the high-level FORMAT has been

         performed.


 6_1_4

4. In an AT class system, the drive LED is always on.

        i) Not a  problem if drive is working. Check controller

         documentation for latch/non-latch jumper if available.

        ii) Drive not working: check that pin1 on controller matches

         pin1 on drive.


 6_1_5

5. 1701 ERROR

        i) Refer to 6_1_1

        ii) If in an XT system, perform the low-level format if drive

         is new to this controller.


 6_1_6

6. 1780 or 1781 ERROR

        Refer to 6_1_1


 6_1_7

7. 1790 or 1791 ERROR

        i) Need to low-level format the drive (then partition with

         FDISK and DOS high-level format).

        ii) Try substituting another 20-pin data cable.


 6_1_8

8. AT interface drive spins up after power, then it spins back down.

        i) Substitute the ribbon cable.

        ii) Try a different system with a different BIOS.


 6_1_9

9. AT interface does not spin up after power.

        i) Check to see that the ribbon cable is not reversed.

         Sometimes the colored stripe on the cable is pin-40.


 6_2_1

6_2 Low-level Format Errors

------------------------

1. Low-level format takes too long or hangs. Excessive errors.

Code 20 or 80. (controller codes) or Unsuccessful format.

        i) In AT systems make sure CMOS drive type is correct.

        ii) In XT systems make sure dynamic configuration is correct.

        iii) Check the drive parameters used in the low-level format.

        iv) Check/substitute 20-pin data cable.

        v) Check that you have data cable plugged into correct

         connector on controller.

        vi) Verify that the performance capability of the controller

         matches the performance of drive and matches the speed of the

         system.


 6_2_2

2. Entering the DEBUG address fails to obtain the low-level format

menu.

        i) Check if controller even has an onboard BIOS and confirm

         that it is enabled.

        ii) Check DEBUG address used against the memory address

         jumpers on the controller (refer to controller

         documentation).

        iii) Some systems require removing the drive type from CMOS.

        iv) Look for conflicts with other controllers or adapters

         which have onboard BIOS; video, etc..

        v) Check with controller manufacturer about the use of special

         formatting software on diskette that needs to be used with

         the controller card (Seagate controllers and host adapters do

         not use special diskette software).

        vi) Try using the following addresses for DEBUG:

                G=C800:5 or

                G=CC00:5 or

                G=C800:CCC or

                G=C800:6 or

                G=D800:5 or

                G=DC00:5


 6_2_3

3. "Drive not Ready" error message.

        i) Check all cables for pin-1 to pin-1 orientation.

        ii) Check power supply for adequate output.

        iii) Verify that the drive spins up. Keep in mind that many

         drives are very quiet and hard to hear.

        iv) Check the drive select jumper is correct for the number of

         drives in your system and/or for the type of controller cable

         being used.

        v) Warm Boot; could be controller, power supply, system BIOS

         timing, or, relative spin-up time in two drive systems.

        vi) Consider the use of diagnostic hard drive maintenance

         software.

        vii) May need to low-level format the drive.


 6_2_4

4. "Sector not found" error message.

        i) Substitute the 20-pin data cable.

        ii) Usually a media error or the drive not with original

         controller, may need to re low-level format.


 6_2_5

5. Low-level Format hangs on a specific Head/Cylinder/Sector.

        i) Check that the hard error list was entered. (bad track

         list).

        ii) Check that the parameters and/or correct drive type in

         CMOS setup is being used and matches those of the drive.

        iii) Mark the location of the problem area out in the defect

         map and restart the low-level format.


 6_3_1

6_3 Partitioning (FDISK) Errors

---------------------------

1. "No Fixed Disk Present"

        i) Refer to 6_1_1

        ii) Check for too loose cable.

        iii) In two drive system, check that the terminating resistor

         has been removed from the drive in the middle of the daisy

         chain.

        iv) May need to re low-level format.


 6_3_2

2. Hangs in FDISK or fails to create or save partition record.

        i) Swap or check the 20-pin data cable.

        ii) Verify that the low-level format actually took place.

        iii) Check that the drive parameters have been entered

         correctly (re low-level if not).

        iv) If AT bus interface drive, try an alternate translation

         geometry.

        v) Substitute the cables.

        vi) Try a different DOS and/or DOS utilities diskette.

        vii) Try changing the partition size.

        viii) Run a surface scan utility to check for defects at the

         beginning of the drive.

        ix) If using ST07 or ST08 AT interface host adapter, check

         JP5.


 6_3_3

3. "Hard Disk Controller Failure" or very many defect in last logical

partition.

        i) Confirm that the drive type definition used in the CMOS

         setup does not exceed the capacity of the drive. Seagate disc

         drives use 1 megabyte to equal 1,000,000 (10 to the 6th

         power) bytes. In CMOS a megabyte may be calculated as

         1,048,576 (2 to the 20th power) bytes.


 6_4_1

6_4 System Format

------------------

1. High level format takes too long.

        i) Normal operation with DOS 4.x to keep retrying hard errors,

         giving "Attempting to recover allocation units" message.


 6_4_2

2. Drive doesn't format to full capacity (DOS partitions only).

        i) Check the drive parameters used in the low-level format.

        ii) DOS has a 1024 cylinder limitation, alternate translations

         or third party partitioning software may be needed.

        iii) Verify that the controller is the proper type for drive

         interface and performance.

        iv) Confirm that the parameters reported by FDISK match those

         of the drive.

        v) Older DOS has a built in limitation of 32 megabytes. You

         may need to upgrade your DOS.

        vi) All DOS has a limitation of reported drive parameters. You

         may need a controller with BIOS, partitioning software, or a

         system BIOS upgrade.

        vii) Some controllers use disc space for defect management,

         refer to controller manual for explanation of default sparing

         overhead.


 6_4_3

3. Do not get full capacity from large capacity drive, using

partitioning software.

        i) Likely due to a geometry mismatch in CMOS. Try creating a

         very small (_8 meg) DOS boot partition and then partitioning

         the rest of drive with write/read partitions.


 6_4_4

4. Formatted with Disk Manager, cannot recognize D, E, F (drives above

C:).

        i) Be sure you booted from the hard drive.

        ii) Verify that the Disk Manager DMDRVR.BIN device driver file

         is in the root directory of the C partition or boot drive.

        iii) Verify that the CONFIG.SYS file on the boot disc has the

         statement DEVICE=DMDRVR.BIN and that it is loaded before any

         other memory management device drivers.

        iv) Confirm that all partitions have been "prepared".


 6_4_5

5. "Disk Boot Failure", "non system disk", or "No ROM Basic - SYSTEM

HALTED"  error messages.

        i) Try using the DOS utility SYS.COM (i.e. At the A:\ prompt,

         with the same version of DOS as on the hard drive, type "SYS

         C:").

        ii) When Using FDISK, make sure that the primary partition is

         active.

        iii) On AT systems, check for the correct CMOS drive type,

         check the system battery.

        iv) Check all cables.

        v) Open floppy door.

        vi) Scan for virus infections.

        vii) On XT systems, back up files then reformat from the low

         level.


 6_5_1

6_5 General Errors

--------------------

1. Random data, seek, or format errors.

        i) Check power and grounding.

        ii) Try re-routing the cables.

        iii) Controllers are susceptible to noise, do not install next

         to power supply or some monitor cards.

        iv) Try slowing down the system speed or bus speed.

        v) If drive works outside of the system, it is probably ground

         or RFI problem.

        vi) Do a thorough media scan and reformat, sparing out all

         previous and new hard errors.


 6_5_2

2. Error while installing a second drive of a different interface, or

system doesn't boot after installation of second controller.

        i) The controller must match the interface of the second drive

         and will need to have onboard BIOS that must not require a

         CMOS drive type.

        ii) The BIOS memory address of the new controller must be set

         to a different address than that of any other devices.

        iii) If new drive is an AT interface drive, the existing drive

         will need a controller with BIOS that does not require a CMOS

         drive type setting.

        iv) Verify that you have only a single enabled floppy

         controller in the system.

        v) Verify that your second controller is at a different BIOS

         memory and port address than any other installed devices.


 6_5_3

3. "Bad or Missing Command Interpreter" error message.

        i) Do not mix DOS versions.

        ii) Make sure COMMAND.COM was transferred.

        iii) Scan for virus infection.

        iv) Reformat the C: partition using the /S option for

         transferring the system files.


 6_5_4

4. Should I park my drive?

        i) Only if drive is not autoparking.


 6_5_5

5. CheckDisk reports bytes in "Bad Sectors".

        i) This is not a problem. Some controller formatting schemes

         spare an entire track for each hard error found by the

         low-level format. A hard disc drive is within spec if the

         drive has up to one error per megabyte of formatted capacity.


 6_5_6

6. "Error reading Drive C:"  type error message.

        i) Scan the disc drive for defects.

        ii) If excessive or intermittent, may be caused by faulty

         cables.

        iii) Scan for Virus infection.

        iv) Consider the use of diagnostic hard drive maintenance

         software.

        v) May need to be re low-level formatted (especially if the

         drive orientation has been changed).


 6_5_7

7. "Track 0 not found" error message.

        i) Substitute the 20-pin data cable.

        ii) Change the CONFIG.SYS file to include buffers=99, or

         upgrade DOS software to version 3.3 or higher.

        iii) May need to low-level format drive.


 6_6_1

6_6 Transfer rate and Seek time Access time Problems

-----------------------------------------------------

1. Average access time test longer than specified.

        i) Verify drive model specifications.

        ii) Optimum step pulse rate is 10 to 35 microseconds, set in

         dynamic configuration of low-level format on XT type system.

        iii) Different software will measure access time differently.

         Make sure that the software subtracts system overhead from

         the calculation.


 6_6_2

2. Slower data transfer rate than specified.

        i) Test the data transfer rate with different diagnostic

         utilities.

        ii) Experiment with different interleave settings during the

         low-level format to achieve best data transfer rate.  Start

         with default setting.

        iii) Controllers vary widely in their interleave capability. A

         1:1 interleave controller should always be set for 1,

         regardless of the drive model. An interleave of 1 to 1 is the

         fastest. Consult your controller specifications. Setting

         interleave too fast will degrade performance.

        iv) AT Bus interface drives: Verify that a low-level format

         was not used previously, as this may remove the head and

         cylinder skewing optimization.


 6_7_1

6_7 SCSI Specific Problems

---------------------------

1. No ROM ID message to screen on boot up.

        i) Check for memory address conflict  with other adapter BIOS.

         ST01/ST02  must be at highest address.

        ii) Bad Host Adapter


 6_7_2

2. 1780, 1781, 1790, 1791 errors.

        i) Check cables.

        ii) Remove  the drive type from CMOS in AT systems.


 6_7_3

3. No SCSI device found.

        i) Check for host adapter BIOS memory address conflict.

        ii) Make sure no drive number is set in CMOS setup.

        iii) Check installation

        iv) Check cable and power output.

        v) Check SCSI ID number.

        vi) Verify if Parity jumper on the drive is needed.


 6_7_4

4. SCSI drive type for my AT system.

        i) None or "Not Installed"; SCSI does not work if a drive type

         is entered in CMOS.


 6_7_5

5. Series of 1 to 7 drive LED flashes at power-on and drive doesn't

work.

        i) Remove the SCSI interface cable from the drive and apply

         power. If drive LED still flashes, record the number of

         flashes and call for technical support.


 6_8_1

6_8 Software

--------------

1.. Newly installed software causes problems or doesn't operate

properly.

        i) Call the software manufacturer.


 6_8_2

2. Need device driver for the drive.

        i) Device drivers are written by the controller manufacturer.

         Seagate does not offer any device drivers.


 6_8_3

3. DOS works OK but other Operating System doesn't.

        i) Call the operating system manufacturer.