Re: kernel: aacraid: Host adapter reset request. SCSI hang ?

I was called by Dell last week to install "urgent" updates on a PE2600 for
the Perc4di chipset and BIOS.
I'll be doing these updates tonight so I'll see how it goes. Dell suggested
the system could be running, but not stable and pose other problems

----- Original Message ----- 
From: "Adam Newby" <[email protected]>
To: <[email protected]>
Sent: Wednesday, June 11, 2003 6:37 PM
Subject: RE: kernel: aacraid: Host adapter reset request. SCSI hang ?


> Members of the list may be interested to know our experiences with
> PE2650s/disk issues.
>
> We bought 2 2650s at the end of last year. One of them runs CPU-intensive
> applications, with little disk access; the other runs CPU and (heavily)
> disk intensive applications: the disk is being hammered constantly (reads
> and writes).
>
> The machines run Debian with kernel 2.4.20/hyperthreading and the aacraid
> driver from the standard kernel distribution.
>
> We started to see problems of the same sort reported here on the
> disk-intensive machine: 'SCSI hang', 'aacraid: timeout on <x> commands',
> etc.
>
> At various junctures, we've had two of the four disks in the
> machine replaced by Dell. Whether it was really the disks at fault is
> debatable, but it could have been related to this issue:
>
>
http://www.digitimes.com/NewsShow/Article1.asp?datePublish=2003/05/26&pages=01&seq=2
>
> (We had Seagate drives in the machine originally.)
>
> Dell advised us to install the latest BIOS/backplane firmware upgrades;
> the Dell support engineer I spoke to seemed to suggest that the machines
> couldn't really be considered usable unless these were installed!
>
> After replacement of the disks, and installing these updates, we haven't
> seen any disk errors in two months of continuous operation. I strongly
> advise people having these problems to install the updates. They're
> available in a single 'magic bullet' file - search Dell downloads for
> "BR57110.exe".
>
> Dell themselves seem sufficiently concerned about this to have cold-called
> everyone who bought these machines last year - they called us to instruct
> us to install the updates (after we'd already done so).
>
> I hope this is useful!
> ____________________________________
> Adam Newby
> IT Manager
> NewsNow Publishing Limited
> Tel: +44 (0)20 7471 0400
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