Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!mnetor!uunet!cbmvax!grr
From: grr@cbmvax.UUCP (George Robbins)
Newsgroups: comp.sys.amiga
Subject: A2090 Notes
Message-ID: <2870@cbmvax.UUCP>
Date: Thu, 26-Nov-87 23:59:04 EST
Article-I.D.: cbmvax.2870
Posted: Thu Nov 26 23:59:04 1987
Date-Received: Sun, 29-Nov-87 20:41:04 EST
Reply-To: grr@cbmvax.UUCP (George Robbins)
Organization: Commodore Technology, West Chester, PA
Lines: 46
Keywords: amiga A2090 disk controller

A recent Amiga Mail article listed the following disk drives that have been
tested with the A2090 hard disk controller and associated driver software:

SCSI Drives:

Epson		HMD-726A
Miniscribe	8425S
Quantum		Q280
Rodime		RO652
Seagate		ST157N
Segate		251N


ST506/ST412 Drives:

Generic		2 head, 10 MByte
Generic		4 head, 10 MByte
Miniscribe	3425/8425
Miniscribe	3650
Seagate		ST225
Seagate		ST251


Notes:

1) The SCSI drives represent a fair profile of the readily available
   low cost drives.  Many third party peripheral devices have one of
   these drives hidden under the cover.  Other drives should work,
   however command set differences may result in driver problems.
   Reports of what does work and especially what doesn't work are
   appreciated.

2) ST506/ST412 drives are fairly generic these days.  The one restriction
   to keep in mind is that the A2090 does not support relatively exotic
   drives having more than 8 heads.   Check drive specifications to avoid
   embarrassment in this regard.

3) The A2090 hardware and firmware is capable of supporting buffered
   SCSI tape and other peripheral devices, however the current driver
   software is oriented towards disk devices.  Hopefully this situation
   will be improved in the future.

-- 
George Robbins - now working for,	uucp: {uunet|ihnp4|rutgers}!cbmvax!grr
but no way officially representing	arpa: cbmvax!grr@uunet.uu.net
Commodore, Engineering Department	fone: 215-431-9255 (only by moonlite)