Hard Disks that have been used under CTOS.

A note about disk bios's
These disk models have been known to work with CTOS.
What I don't know, is if there are particular BIOS revisions required by CTOS.
I understand that in some cases, the revision level is very important.  Different BIOS revisions of the M2684SAU are known not to work.

The Disks
500MB
Originally used in: ??? (serves as replacement disk)
Make & Model:       Fujitsu M2684SAU
Part No:            CA01237-B141
Date:               1995-04

1GB
Originally used in: SGS7100
Make & Model:       Seagate ST31230N
Part No:            981003-003
Unisys Part Number: 3494 5881
Date:               7/95

Originally used in: ???
Make & Model:       Seagate ST31200N
Zenith Part Number: P1511316W1
 

2GB
Originally used in: ???
Make & Model:       Seagate ST32430N
Unisys Part Number: 3494 6061
Date:               06/96

Originally used in: ???
Make & Model:       Seagate ST32550N
BIOS Revision Code: 012
Date:               1998?

Originally used in: ??? (serves as replacement disk)
Make & Model:       Seagate ST32151N
Date:               (available new)

4GB
Originally used in: SGS4250
Make & Model:       Fujitsu M2954SUP
Part No:            CA01407-B519
Unisys Part Number: 4485 8165

Originally used in: ??? (serves as replacement disk, supplied by Unisys for SGS4250)
Make & Model:       Western Digitial WD Enterprise 4360
Part No:            WDE4360-0003A5
BIOS Revision code: ?
Date:               20 Jan 1997

Originally used in: ??? (serves as replacement disk)
Make & Model:       Quantum "Atlas" XP34300
Part No:            XP34300
Date:               (available new)

In a comp.sys.unisys, the following drives were identified as working:
Seagate
ST31055N
ST32155N

Fujitsu
M2954
M1606SAU

Disks that don't work
Make & Model:       Seagate ST34501N
Tested with:        SGS7101
Date:               February 1999
Reason:             "It appears that the new Seagate drives spin
                      at too high a rate for the disk controller, or
                      CTOS." - comp.sys.unisys
 

Disclaimer
This article is provided as is without any express or implied warranties.  While every effort has been taken to ensure accuracy of the information contained in this article, the author assumes no responsibility for errors or omissions, or for damages resulting from the use of the information contained herein.
 

Dale 'Cat' Robinson - catfromdarwin@oocities.com
6 December 1999

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