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From: tom@tomqnx.com (Tom Torrance at home)
Subject: Re: CD-R & SCSI Problems
In-Reply-To: <33984DF9.2781E494@whistle.com> from Julian Elischer at "Jun 6, 97 10:50:49 am"
To: julian@whistle.com (Julian Elischer)
Date: Sat, 7 Jun 1997 00:36:37 -0400 (EDT)
Cc: tom@tomqnx.com, joerg_wunsch@uriah.heep.sax.de,
        freebsd-hackers@freebsd.org
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> Tom Torrance at home wrote:
> > 
> > The previously reported
> > ILLEGAL REQUEST asc:20,0 Invalid command operation code
> > 
> > is really a good thing, I suppose.  I had switched to using
> > /dev/nrst0 for my backup, and the driver was rejecting dump's
> > requests to rewind the tape.
> > 
> > Sorry about that...
> > 
> > Tom
> 
> nrst0 should still accept rewind commands
> 
You are absolutely correct. ANother unfounded assumption bites the dust.
I have absolutely no idea what is causing this, it seems to happen
every time the tape is either opened or closed - and 'seems' to cause no harm.
It started after I did a cvsup from RELENG-2.2 and 'make world' the evening 
of May 31. The previous cvsup etc took place approximately 2 weeks prior
to that.

THe tape drive is an HP Colorado T4000 running off my ahc AHA-2740A.
 
Tom