From: Thomas Harold <thomas-lists@nybeta.com>
To: Nikolay Kichukov <hijacker@oldum.net>
Cc: linux-raid@vger.kernel.org
Subject: Re: data scrubbing
Date: Fri, 29 Jul 2011 13:17:24 -0400 [thread overview]
Message-ID: <4E32EB24.7010909@nybeta.com> (raw)
In-Reply-To: <4E327445.9080404@oldum.net>
On 7/29/2011 4:50 AM, Nikolay Kichukov wrote:
> -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1
>
> Hi all,
>
> Recently on this list it was discussed it is a good practice to
> perform data scrubbing for some raid levels. Can someone advise what
> raid levels need that operation scheduled on a regular basis? Perhaps
> all raid arrays that have:
>
> /sys/block/md*/md/sync_action
>
> [sync_action] property?
>
> For example is it good for raid1 array?
>
Yes, we run a script every week (different arrays on different nights)
that looks like:
#!/bin/sh
echo check > /sys/block/md0/md/sync_action
mdadm --wait /dev/md0
cat /sys/block/md0/md/mismatch_cnt
prev parent reply other threads:[~2011-07-29 17:17 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-29 8:50 data scrubbing Nikolay Kichukov
2011-07-29 10:03 ` Mikael Abrahamsson
2011-07-29 13:25 ` Nikolay Kichukov
2011-07-29 20:48 ` Beolach
2011-07-29 21:51 ` Mathias Burén
2011-07-29 22:16 ` David Brown
2011-07-29 22:37 ` Beolach
2011-07-29 17:17 ` Thomas Harold [this message]
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