Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!wuarchive!julius.cs.uiuc.edu!psuvax1!rutgers!cbmvax!andy
From: andy@cbmvax.commodore.com (Andy Finkel)
Newsgroups: comp.sys.amiga
Subject: Re: 2091 Interface
Message-ID: <15476@cbmvax.commodore.com>
Date: 30 Oct 90 20:18:36 GMT
References: <5357@crash.cts.com>
Reply-To: andy@cbmvax.commodore.com (Andy Finkel)
Organization: Commodore, West Chester, PA
Lines: 43

In article <5357@crash.cts.com> denny@pnet01.cts.com (Dennis Anderson) writes:
>I bought a 2000HD in March and a friend of mine bought a 590 to go with her
>500 at about the same time. We both are getting very good use of our systems
>but have run into a problem. My friend got ahold of a 20 meg SCSI drive and
>power supply. We cannot get the 2091 or the 590 to recognize this drive. The
>drive works fine on anouther friends 1000 using a Supra controller. When
>asking around for help we were told by SEVERAL Amiga dealers that the Roms in
>both the 2091 and 590 are not able to handle MORE THAN ONE SCSI DRIVE. Is this
>true???

It's not true in any way, shape or form.  The 2091 and 590 support more
than one SCSI drive.

1) You need to properly terminate the SCSI bus for more than one drive
   to work.  (A SCSI bus needs to be terminated at each end, and no
   more than at each end.  This may involve removing terminating resistors
   from the middle drives)

2) You need to make sure that the SCSI ID address of each drive is different.
   (this involves changing jumpers on the drive)

3) You need to use HDToolbox to tell the system about the drives.
   (remember to SAVE CHANGES TO DRIVES on all drives that HDtoolBox
    says are changed)

(And, for now, make sure that the reselection option in 'advanced options'
 of hdtoolbox is OFF for each of the drives, because reselection is
not currently supported.)
 
The bottom line is that it does work.

Please make sure you've followed all of the above steps.

			andy
-- 
andy finkel		{uunet|rutgers|amiga}!cbmvax!andy
Commodore-Amiga, Inc.

"It is much easier to suggest solutions when you know nothing about the
 problem."

Any expressed opinions are mine; but feel free to share.
I disclaim all responsibilities, all shapes, all sizes, all colors.