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From: Kyler Laird <kyler-keyword-linuxraid.6e1399@lairds.com>
To: linux-raid@vger.kernel.org
Subject: Re: "cannot start dirty degraded array"
Date: Mon, 15 Jun 2009 11:57:37 -0400	[thread overview]
Message-ID: <20090615155737.GU18313@lairds.com> (raw)
In-Reply-To: <4A366EAE.9010706@tmr.com>

On Mon, Jun 15, 2009 at 11:54:22AM -0400, Bill Davidsen wrote:

> Just a thought, when multiple units have errors at the same time, I  
> suspect a power issue. And if these are real SCSI drives, it's possible  
> for a drive to fail in such a way that it glitches the SCSI bus and  
> causes the controller to think that multiple drives doing concurrent  
> seeks have failed. I saw this often enough to have a script to force the  
> controller to mark drives good and then test them one at a time when I  
> was running ISP servers.

The X4540 has 48 SATA drives.  We've had a couple X4500s (similar) in
similar service for awhile with no problems.  I hadn't considered power
being a potential problem but I'll keep it in mind.

Thank you.

--kyler

      reply	other threads:[~2009-06-15 15:57 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-06-10 20:03 "cannot start dirty degraded array" Kyler Laird
2009-06-14 23:32 ` Carlos Carvalho
2009-06-14 23:56   ` Kyler Laird
2009-06-15 15:54 ` Bill Davidsen
2009-06-15 15:57   ` Kyler Laird [this message]

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