Kinda sounds like a Quantum Q2020.  I had one with a sasi board mounted on
it back in 93'.  Has a smoked plastic mech cover and a whole bunch of
warning stickers indicating it can remove digits if you dink with it while
open? I used a CSS Black Box for an interface.  Sasi drives (and most scsi
bridge controllers) require specific formatting code.  Also, iirc, sasi
devices required a dos-level bad sector map of the drive.  In other words,
the dos you use scans the drive and creates a file occupying all the bad
sectors detected.  The hardware didn't do that as with most (all?) scsi
drives/bridge controllers.
As I recall, the q2020 has the same geometry as the Seagate st225
(620/4/17).??
The q2020 is an 8" 20mb unformatted drive which yields 16mb (more or less)
when formatted and has a 40ms average seek time.
Mine had an aluminum cased ps bolted to it and the drive stood on it's
side.
Regards,
Jeff
In <01Dec4.151208est.119070_at_gateway.mediacen.navy.mil>, on 12/04/01 
   at 02:59 PM, Jeff Hellige <jhellige_at_earthlink.net> said:
>	This is being asked out of curiosity, since I happened to 
>think about it today.  About 13 years ago, a large hard disk was  pulled
>out of a piece of medical equipment and made it's way across  my desk. 
>The drive was made by Shugart and I believe it had a SASI  interface.  It
>was easily as big as a dual-8" floppy enclosure, maybe  14" in diameter
>and had it's own PSU.  The case over the platters was  clear plastic. 
>One of the guys I worked with pulled the PSU parts  out of it and
>unfortunately I didn't think to keep the rest of it  from being junked,
>mainly due to it's size.  Any ideas as to what  this might have been?  It
>certainly wasn't near new at the time of  it's removal.  At the time, we
>were still running a CP/M system for  our tracking database and we backed
>up it's hard disk once a week on  it's 8" floppy drive, which was
>integrated in the system and standing  on it's side.
>	Jeff
-- 
-----------------------------------------------------------
Jeffrey S. Worley
Asheville, NC USA
828-6984887
UberTechnoid_at_Home.com
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Received on Fri Dec 07 2001 - 22:33:15 GMT