From: Bill Davidsen <davidsen@tmr.com>
To: John McMonagle <johnm@advocap.org>
Cc: linux-raid@vger.kernel.org
Subject: Re: Raid corruption problems.
Date: Tue, 19 Dec 2006 16:39:54 -0500 [thread overview]
Message-ID: <45885C2A.40602@tmr.com> (raw)
In-Reply-To: <4582FD12.90806@advocap.org>
John McMonagle wrote:
> Have a raid1 backup server that seems to get corrupted.
> This is the 3rd time in about a year.
> Have 2 other backup servers that were cloned from this one that have
> no problems.
>
> Done a couple kernel upgrades recently.
> Now has 2.6.18-2 kernel.
> It's based on Debian sarge.
>
> It's a low end Intel server motherboard using ata_piix sata driver.
> Have another mother board just like doing raid1 with sata drives that
> has had no problems but it has a much lighter disk load.
> smartctl has never shown any problems.
> In /sys/block/md2 did
> echo check > syncaction
> No error messages but mismatch_cnt is 1152.
> rc0/errors and rc1/errors are both 0.
>
> I'm guessing a hardware problem.
> Any suggestions?
Since memory is the easiest to test, I'd try memtest86+ for at least 12
hr. If this were PATA I'd suggest replugging the cables, but it's lower
probability with SATA. Still, probably worth trying.
--
bill davidsen <davidsen@tmr.com>
CTO TMR Associates, Inc
Doing interesting things with small computers since 1979
next prev parent reply other threads:[~2006-12-19 21:39 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-12-15 19:52 Raid corruption problems John McMonagle
2006-12-19 21:39 ` Bill Davidsen [this message]
2006-12-24 14:00 ` John McMonagle
2006-12-25 19:06 ` Bill Davidsen
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