From: Oliver Martin <oliver.martin@student.tuwien.ac.at>
To: Janek Kozicki <janek_listy@wp.pl>
Cc: linux-raid@vger.kernel.org
Subject: Re: mismatch_cnt of 128 and 1408.
Date: Mon, 24 Mar 2008 21:23:47 +0100 [thread overview]
Message-ID: <20080324212347.32d47553@ors> (raw)
In-Reply-To: <20080324083651.444cbab3@absurd>
Am Mon, 24 Mar 2008 08:36:51 +0100 schrieb Janek Kozicki:
>
> Now I am alarmed that something might be wrong with the root
> partition. From other posts I remember that mismatch count for swap
> partitions is allowed to be nonzero.
Apparently it can also happen when a file is truncated between the
writes to the individual disks:
http://www.mail-archive.com/linux-raid@vger.kernel.org/msg07546.html
Or could it just be that it was writing when the power failed?
>
> I checked smart health status of HDDs with smartctl -H and the drives
> are healthy.
>
>
> Is mismatch count = 128 an indication of bad HDD? How to discover
> which one is bad?
>
You could run a long SMART selftest. If the downtime doesn't matter,
you could also boot from a live cd and run badblocks -n.
--
Oliver
next prev parent reply other threads:[~2008-03-24 20:23 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-24 7:36 mismatch_cnt of 128 and 1408 Janek Kozicki
2008-03-24 20:23 ` Oliver Martin [this message]
2008-03-25 3:33 ` Neil Brown
2008-03-25 12:43 ` Janek Kozicki
2008-03-26 2:07 ` Guy Watkins
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