From: Roman Mamedov <rm@romanrm.ru>
To: Pavel Herrmann <morpheus.ibis@gmail.com>
Cc: linux-raid@vger.kernel.org
Subject: Re: data corruption after rebuild
Date: Tue, 19 Jul 2011 21:12:40 +0600 [thread overview]
Message-ID: <20110719211240.2578bba6@natsu> (raw)
In-Reply-To: <2073005.NH8LALaxuD@bloomfield>
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Hello,
On Tue, 19 Jul 2011 15:55:35 +0200
Pavel Herrmann <morpheus.ibis@gmail.com> wrote:
> the problem is that the rebuilt array is corrupted. most of the data is fine,
> but every several MB there is an error (which doesn't look like being caused
> by a crash), effectively invalidating all data on the drive (about 7TB, mainly
> HD video)
Which model of SATA controller/HBA do you use?
Kernel version, mdadm version?
Anything unusual in SMART reports of any of the drives (e.g. a nonzero UDMA CRC Error count)?
>
> I do monthly scans, so the redundancy syndromes should have been up-to-date,
> the array is made of 8 disks, the setup is ext4 on lvm on mdraid
Did you notice any nonzero mismatch_cnt during those scans?
--
With respect,
Roman
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next prev parent reply other threads:[~2011-07-19 15:12 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-19 13:55 data corruption after rebuild Pavel Herrmann
2011-07-19 15:12 ` Roman Mamedov [this message]
2011-07-19 16:18 ` Pavel Herrmann
2011-07-19 17:38 ` Roman Mamedov
2011-07-19 17:44 ` Pavel Herrmann
2011-07-19 16:35 ` Pavel Herrmann
2011-07-19 16:48 ` Roman Mamedov
2011-07-19 17:05 ` Pavel Herrmann
2011-07-19 18:12 ` Roman Mamedov
2011-07-20 6:24 ` NeilBrown
2011-07-20 8:20 ` Pavel Herrmann
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