At 11:32 PM 11/28/00 -0800, you wrote:
>
>
>Tony Duell wrote:
>> >
>> > On a related note, the hard disks in the 9154 are supposed to be 20MB
>> > 3.5" SCSI drives, but they use a smaller connector that I am not
>> > familiar with, and again no power connector. Is there some standard for
>> > SCSI that came before the normal SCSI-1 type connector or did HP do some
>> > proprietary type of connector?
>>
>> Are you sure it's SCSI? I thought it was some custom interface. It
>> certainly didn't look like SCSI to me...
>>
>
>The drives are HP model 97500-85620.
>
>The following places on the net show it as a SCSI drive:
>
>http://www.pc-disk.de/pcdisk/h/2000/1208.htm
>
>http://nuked.org/download/theref/theref.aquascape.com/hard_drives/h_hp-9750
0-85620.html
>
>http://www.rdg.ac.uk/CSC/Topic/Techs/TeXDhdre01/hdref2.html
>
>http://www.mfarris.com/hard/Hewlett_Packard1.html
>
>Of course, they could all be getting their information from the same
>incorrect source. In a way though, SCSI does make sense since the drives
>do have integrated drive electronics. From the period, the only drives
>that I know of with integrated controllers were either SCSI or SASI. I
>thought that SASI was only used by Shuggart. The PC versions did not
>appear until about 1988 (later than the 9153/9154), and I doubt that HP
>(at that time) would have use the PC types anyway.
>
>At some point, I will pull the integrated controller board off the disk
>and look to see if any standard parts were used. Also, the chips that I
>can see on the main board in the drive seem to use HP ASICs (an 84 and a
>68 pin CQFP).
>
>-Pete
>
Received on Wed Nov 29 2000 - 19:42:41 GMT