[6467] in linux-scsi channel archive
Re: tagged queuing buggy drive?
daemon@ATHENA.MIT.EDU (Boris Tobotras)
Thu May 6 05:14:46 1999
To: jlewis@lewis.org
cc: Linux SCSI Mailing List <linux-scsi@vger.rutgers.edu>
Date: Thu, 06 May 1999 11:55:22 +0400
From: Boris Tobotras <tobotras@jet.msk.su>
On Sat, 01 May 1999 13:17:15 EDT, jlewis@lewis.org wrote:
> Is anyone aware of tagged queuing problems with the following ultra-wide
> SCSI drive?
>
> Vendor: QUANTUM Model: XP32275W Rev: LXY4
> Type: Direct-Access ANSI SCSI revision: 02
YES.
> Using an array of several of these drives in a software RAID-0 stripe set,
> I can crash the system every hour or two (total system freeze) by running
> multiple bonnies on the array. I've done it under 2.0.36 with a Buslogic
> BT-958 and with an Adaptec 2940uw. With tagged queuing disabled, the
> system appears to be stable with the BT-958. I've not yet tried going
> back to the 2940uw.
This firmware revision is known for TQ bugs. Reducing queue depth
to four commands or disabling it at all helps.
--
Best regards, -- Boris.
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