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Date:      Thu, 6 Mar 2003 23:58:37 +0100
From:      Francesco Casadei <fcasadei@inwind.it>
To:        Andre Albsmeier <andre.albsmeier@siemens.com>
Cc:        freebsd-stable@FreeBSD.ORG
Subject:   Re: (da0:ahc0:0:0:0): Unexpected busfree in Data-in phase and other weirdness
Message-ID:  <20030306225837.GA1277@goku.kasby>
In-Reply-To: <20030306153355.A12907@curry.mchp.siemens.de>
References:  <20030228235031.GE5033@grummit.biaix.org> <20030301094934.GA547@goku.kasby> <20030306153355.A12907@curry.mchp.siemens.de>

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[-- Attachment #1 --]
On Thu, Mar 06, 2003 at 03:33:55PM +0100, Andre Albsmeier wrote:
> (I assume the cabling/termination has been checked already.)
> 
> I had bus problems with my DNES until I upgraded the firmware to:
> 
> da2: <IBM DNES-318350W SAH0> Fixed Direct Access SCSI-3 device 
> 
> In general, I have often seen bus problems when a lot of different
> devices are hanging on the same SCSI bus and some drives are being
> hit really hard. They always went away with a new fw, especially
> on my IBM DDYS drives. The Plextor fw seems a bit old as well (at
> least compared to my PLEXTOR CD-ROM PX-40TS 1.13) but I don't know
> if the 32TS uses the same as the 40TS.
> 
> I have written a program to upgrade the firmware on IBM and Plextor
> (and some other devices) under FreeBSD in case you are interested...
> However, IMO one should play with the fw only in case of problems
> and not just to get lastest version...
> 
> 	-Andre
> 
> To Unsubscribe: send mail to majordomo@FreeBSD.org
> with "unsubscribe freebsd-stable" in the body of the message
> end of the original message

I'm having SCSI-related problems on the home PC, which has run fine for three
years now whithout being hardware-upgraded. I update the system on a regular
basis, though (last buildworld/installword was on Thu Dec 26 2002).
The IBM drive fitness test showed that hard drives are ok. The error seems to
appear randomly, whithout particular conditions (load avg, used mem, programs
running, etc.).
A couple of days ago the SCSI bus has been reset five consecutive times! Is it
time to change my AHA2940 or this has nothing to do with the SCSI controller?

	Francesco Casadei
-- 
You can download my public key from http://digilander.libero.it/fcasadei/
or retrieve it from a keyserver (pgpkeys.mit.edu, wwwkeys.pgp.net, ...)

Key fingerprint is: 1671 9A23 ACB4 520A E7EE  00B0 7EC3 375F 164E B17B


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