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From: Piergiorgio Sartor <piergiorgio.sartor@nexgo.de>
To: Wolfgang Denk <wd@denx.de>
Cc: linux-raid@vger.kernel.org
Subject: Re: Huge values of mismatch_cnt on RAID 6 arrays under Fedora 18
Date: Mon, 28 Jan 2013 18:37:04 +0100	[thread overview]
Message-ID: <20130128173704.GA2329@lazy.lzy> (raw)
In-Reply-To: <20130127192656.634892005AD@gemini.denx.de>

On Sun, Jan 27, 2013 at 08:26:56PM +0100, Wolfgang Denk wrote:
[...]
> # cat /sys/block/md0/md/mismatch_cnt
> 362732152
> 
> 
> This is with mdadm v3.2.6 (mdadm-3.2.6-7.fc18.x86_64); except for the
> huge values of mismatch_cnt, I see no other indications for errors on
> the disk drives, RAID arrays or the file systems on top of these.
> 
> Is this some known (and hopefully harmless), issue, or must I worry
> about our data?
[...]


Hi Wolfgang,

I would shamelessly suggest to try "raid6check", in order
to see if some components have problems.

The software is somehow buried into "mdadm" source code,
probably you'll need to take it from the repository.

Hope it will help,

bye,

-- 

piergiorgio

  parent reply	other threads:[~2013-01-28 17:37 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-01-27 19:26 Huge values of mismatch_cnt on RAID 6 arrays under Fedora 18 Wolfgang Denk
2013-01-27 19:45 ` Chris Murphy
2013-01-27 23:10   ` Wolfgang Denk
2013-01-27 20:05 ` Robin Hill
2013-01-27 23:11   ` Wolfgang Denk
2013-01-28  1:14 ` Phil Turmel
2013-01-28  1:42   ` Chris Murphy
2013-01-28  2:16     ` Chris Murphy
2013-01-28  6:43       ` Wolfgang Denk
2013-01-28  6:36     ` Wolfgang Denk
2013-01-28  7:00       ` Chris Murphy
2013-01-28 10:27         ` Wolfgang Denk
2013-01-28  6:27   ` Wolfgang Denk
2013-01-28  2:07 ` Brad Campbell
2013-01-28  6:39   ` Wolfgang Denk
2013-01-28  7:58     ` Dan Williams
2013-01-28 17:37 ` Piergiorgio Sartor [this message]
2013-01-28 18:12   ` Chris Murphy
2013-01-28 19:00   ` Wolfgang Denk
2013-01-28 19:10     ` Wolfgang Denk
2013-01-28 19:22       ` Piergiorgio Sartor
2013-01-28 20:19         ` Wolfgang Denk
2013-01-28 20:44           ` Piergiorgio Sartor
2013-01-28 22:47             ` Chris Murphy
2013-01-28 22:49               ` Chris Murphy
2013-01-28 23:03                 ` Wolfgang Denk
2013-01-28 23:13                   ` Chris Murphy
2013-01-28 23:31                     ` Wolfgang Denk
2013-01-28 22:59               ` Wolfgang Denk
2013-01-28 23:07                 ` Chris Murphy
2013-01-28 23:23                   ` Wolfgang Denk
2013-01-28 23:42                     ` Chris Murphy
2013-01-29 18:02                     ` Roy Sigurd Karlsbakk
2013-01-29 18:28                       ` Wolfgang Denk
2013-01-29 18:43                         ` Roy Sigurd Karlsbakk
2013-01-29 17:49               ` Piergiorgio Sartor
2013-01-29 19:35                 ` Paul Menzel
2013-01-29 20:18                   ` Piergiorgio Sartor
2013-01-28 23:18             ` Wolfgang Denk
2013-01-29 17:57               ` Piergiorgio Sartor
2013-01-29 18:43                 ` Wolfgang Denk
2013-01-29 20:24                   ` Piergiorgio Sartor
2013-01-31 12:12                     ` Wolfgang Denk
2013-01-31 17:14                       ` Chris Murphy
2013-01-31 17:51                         ` Piergiorgio Sartor
2013-01-31 18:36                         ` Wolfgang Denk
2013-01-31 19:35                           ` Chris Murphy
2013-01-31 19:46                             ` Chris Murphy
2013-01-31 20:05                             ` Wolfgang Denk
2013-01-31 20:41                               ` Chris Murphy
2013-01-31 17:47                       ` Piergiorgio Sartor
2013-01-28 19:18     ` Piergiorgio Sartor

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