SUMMARY: 1 GB 3.5" SCSI disks

From: Aydin Edguer (
Date: Tue Nov 17 1992 - 17:58:20 CST

There are at least seven models that are available now or will be available
shortly. There are also a few 1.2/1.3 GB (formatted) disk drives
(IBM 0663 E15, DEC DSP3160) available.

DEC DSP3105, Fujitsu 2694S, HP C2247, IBM 0663 model E12, Maxtor MXT1240S,
Micropolis 2112, and Seagate ST11200N. The Fujitsu is just being released
in the U.S. The Maxtor is due out in quantity by the end of the year.

You can contact some of the vendors directly for datasheets and vendor
        Fujitsu +1-800-626-4686
        Hitachi +1-800-HIT-ACHI
        Maxtor +1-800-2MA-XTOR
        Micropolis +1-800-395-3748
        Seagate +1-800-468-3472


DEC HP Seagate Micropolis IBM
DSP3105 C2247 ST11200N 2112 0663 model E12
Fast SCSI-2 Fast SCSI-2 Fast SCSI-2 Fast SCSI-2 Fast SCSI-2
5400RPM 5400RPM 5400RPM 5400RPM 4317RPM
250,000MTBF 300,000MTBF 300,000MTBF 200,000MTBF 500,000MTBF
1.05GB 1.05GB 1.05GB 1.05GB 1.04GB
20ms 25ms 26ms 25ms 18.9ms
1ms 2.5ms 1.9 ms 1.5ms 0.6ms
264bit ECC ??bit ECC ??bit ECC 64bit ECC ??bit ECC
512KB cache 256KB cache 256KB cache 512KB cache 256KB cache
vary warranty 5yr warranty 5yr warranty 5yr warranty 5yr warranty
39dBA@0.5m 37dBA@1ft 33dBA@(1ft?) 35dBA@1ft 34dBA@1m

Maxtor Fujitsu
MXT1240S 2694S
Fast SCSI-2 Fast SCSI-2
6300RPM 4400RPM
300,000MTBF 300,000MTBF
1.05GB 1.08GB
20ms 22ms
1.5ms 2.5ms
88bit ECC 64bit ECC
256KB cache 256KB cache
30dBA@1ft 43dBA@1m


DEC was said to be very fast but tended to be "noisy" and ran "hot", perhaps
too hot to be used internally. The warranty on DEC drives vary by distributor.

HP was said to be a reliable drive but also expensive. HP gives it
a 5 year warranty.

Seagate gives a 5 year warranty - little was said about the drive. A Seagate
spec sheet that listed the rotational speed as 4500 RPM was accidentally
released. The proper speed is 5400 RPM and current spec sheets have been
updated to reflect this.

Micropolis gives a 5 year warranty - it also tended to be the lowest priced.
Beta versions of the drive were said to have compatibility problems but
production versions are supposed to have no problems.

IBM gives a 5 year warranty - was said to be a quiet reliable drive.

Maxtor is supposed to be fast and looks like the fastest in term of maximum
sustained transfer rate [6300 RPM]. Not yet available so compatibility and
pricing are not yet known.

Fujitsu has been selling its drive overseas for a while. Fujitsu America
is just releasing the drive in the U.S. No one who owned one commented.


StorNet 216 368 2801 Seagate
Unison 508 879 3200 Micropolis [DEC]
NPI 708 325 4151 Micropolis
CoComp Inc 800 658 5981 IBM
Artecon 800 872 2783 DEC (1 yr)
R-Squared 800 777 3478 DEC (2 yr) [Micropolis,Seagate]
Concorde 800 322 1303 DEC
SelTech 216 338 3663 Seagate [Micropolis]
Anthem Tech 800 359 9877 HP [Seagate]
Aviv 617 270 6900 DEC
Cranel 800 288 3475 Seagate [Fujitsu,HP]
Rave Computer 800 966 7283 IBM
WT 800 882 0007 HP
Western Science 800 443 6699 Seagate
NCA Periphs 408 739 9010 -

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