Date: Wed, 9 Feb 2000 20:13:17 +0100 From: Wilko Bulte <wilko@yedi.iaf.nl> To: Mike Smith <msmith@FreeBSD.ORG> Cc: scsi@FreeBSD.ORG Subject: Re: Recovering SCSI disk contents the evil way? Message-ID: <20000209201317.A56232@yedi.iaf.nl> In-Reply-To: <200002090341.TAA77935@mass.cdrom.com>; from msmith@FreeBSD.ORG on Tue, Feb 08, 2000 at 07:41:12PM -0800 References: <200002090341.TAA77935@mass.cdrom.com>
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On Tue, Feb 08, 2000 at 07:41:12PM -0800, Mike Smith wrote:
>
> We're trying to recover the contents of the CCD array that was in use on
> hub (yes, this should involve "restore from backup", but certain backup
> issues are precluding this).
>
> The disk in question is an IBM DCAS-34330; it's looking pretty sick in
> that it's not able to correctly print its version string when probed,
> _but_, the loader is able to correctly read the first few sectors to get
> the disklabel off it.
>
> Unfortunately, we then lose because the 'da' driver wants to try to read
> the disk's capacity, and that fails.
Long shot: this sounds like broken electronics. Any chance you can
transplant the PCB from a working drive (identical model) to the HDA
of the broken one? This trick once worked for me. If you have bad head
amplifiers in the HDA you're toast obviously, but in that case the
s/w approach will be doomed too.
Alternatively buy the IBM storage guru's in Almeda a beer... (?)
Wilko
--
Wilko Bulte Arnhem, The Netherlands
WWW : http://www.tcja.nl
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