[4840] in linux-scsi channel archive
Re: Warning: AHA2940 RAID PROBLEM
daemon@ATHENA.MIT.EDU (Edward Burt)
Thu Oct 8 12:36:16 1998
Date: Thu, 08 Oct 1998 14:13:27 +0100
From: Edward Burt <edward.burt@dial.pipex.com>
To: linux-scsi@vger.rutgers.edu
Hey this is good - replying to my own email problems with the solution!
Well, we've finally got it working. Turned out that we needed to turn
off "disconnecting" in the SCSI bios. Still... interesting state of
affairs and one to aware of for the future.
Thanks everyone!!
Ed
Edward Burt wrote:
>
> Hi there,
>
> Bit of a weird one. We've just spent the last two days tracking down a
> SCSI problem and we wonder if anyone else has experienced a similar
> case. If not... be warned!!
>
> We've got a number of 54Gb RAID 0+1 boxes hung off the end of a number
> of Dual PII300, 192MB RAM etc.. running linux(2.0.33 and 2.0.35). In a
> couple of new boxes that we have been setting up we have been getting
> SCSI Bus reset errors when trying to format these boxes (ext2fs).
>
> Anyway, having tried every combination of everything ever we finally
> tracked the problem down to the BIOS on the adaptec card. The new oxes
> are running adaptec AHA2940UW Bios 1.32. When we tried the new boxes
> with an old adaptec card (Bios 1.25) from a box we knew worked, the
> problem went away. Likewise the new card in an old box caused the
> problem to appear in the old box.
>
> Has anyone else experienced this problem with the Adaptec Card (BIOS
> 1.32) on large raid devices?
>
> We've changed, upgraded, downgraded, replaced everything we can lay our
> hands on (cables, cards, drives, os etc.) so the only option we have
> left is to replace the cards... unless that is you guys know of the
> problem and it is a linux kernel incompatibility with the new adaptec
> bios and someone is working on a patch.
>
> Anyway, any comments/news welcomed
>
>
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