From owner-freebsd-scsi  Sun Dec 31 12:52:43 2000
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Date: Sun, 31 Dec 2000 12:52:36 -0800 (PST)
From: Matthew Jacob <mjacob@feral.com>
Reply-To: mjacob@feral.com
To: David Kelly <dkelly@hiwaay.net>
Cc: freebsd-scsi@FreeBSD.ORG
Subject: Re: SCSI tape diagnostics? 
In-Reply-To: <200012312049.eBVKnBQ08351@grumpy.dyndns.org>
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ryy

On Sun, 31 Dec 2000, David Kelly wrote:

> Matthew Jacob writes:
> > 
> > C'mon, David, you know the drill... CAMDEBUG kernel, camcontrol debug -Ic
> 
> <CONTROL AGENT 87 MODE>
> "Ah, of course! The old 'camcontrol debug' ploy!"
> </CONTROL AGENT 87 MODE>
> 
> Agree I should have known that. But for the life of me, couldn't think
> of it. I don't normally have CAMDEBUG in my kernel.
> 
> > ... The 'mt' error stuff is limited to what errno can return. However, you can
> > also try 
> > 
> > mt errstat
> > 
> > on the control device to see what was latched up.
> > (err, um, it *is* in the man page....)
> 
> And I did document that I tried it. The output wasn't any more 
> informative.

the second one should have been

mt -f /dev/nsa0.ctl errstat

which doesn't try and load a tpe.

> 
> > On Sat, 30 Dec 2000, David Kelly wrote:
> [...]
> > > grumpy: {456} mt stat
> > > mt: /dev/nsa0: Input/output error
> > > grumpy: {457} mt errstat
> > > mt: /dev/nsa0: Input/output error
> > > grumpy: {458}
> 
> Tape is coming out of the slot a bit warmer than I remember. New case 
> has only one exhaust fan. Its time to use the outdoor probe on my Radio 
> Shack Indoor/Outdoor Digital Thermometer to see if I have a systemic 
> problem and need another fan. This box is a lot quieter, and I like 
> that. But cooked isn't fun either.
> 
> Don't know what happened but I have two tapes which the drive refuses to
> accept. All others I have close at hand are "good" at least thru "mt
> stat". I'll take the questionable tapes to work where I have the twin 
> of this drive. If it breaks there then I'll quit worrying and throw the 
> tapes away. How ever it turns out, its not really a FreeBSD issue.

Aw, we're always to blame.




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