At Mon, 14 Feb 2011 20:13:31 +0200 CentOS mailing list <centos@xxxxxxxxxx> wrote:
>
> Hi List,
>
> What this means?
>
> md: syncing RAID array md0
> md: minimum _guaranteed_ reconstruction speed: 1000 KB/sec/disc.
> md: using maximum available idle IO bandwidth (but not more than
> 200000 KB/sec) for reconstruction.
> md: using 128k window, over a total of 2096384 blocks.
> md: md0: sync done.
> RAID1 conf printout:
> --- wd:2 rd:2
> disk 0, wo:0, o:1, dev:sda2
> disk 1, wo:0, o:1, dev:sdb2
> sd 0:0:0:0: SCSI error: return code = 0x06000000
> end_request: I/O error, dev sda, sector 451792231
> raid1: sda1: rescheduling sector 451792168
> sd 0:0:0:0: SCSI error: return code = 0x06000000
> end_request: I/O error, dev sda, sector 451792263
> raid1: sda1: rescheduling sector 451792200
> raid1: sdb1: redirecting sector 451792168 to another mirror
> raid1: sdb1: redirecting sector 451792200 to another mirror
> md: syncing RAID array md0
> md: minimum _guaranteed_ reconstruction speed: 1000 KB/sec/disc.
> md: using maximum available idle IO bandwidth (but not more than
> 200000 KB/sec) for reconstruction.
> md: using 128k window, over a total of 2096384 blocks.
> md: md0: sync done.
> RAID1 conf printout:
> --- wd:2 rd:2
> disk 0, wo:0, o:1, dev:sda2
> disk 1, wo:0, o:1, dev:sdb2
>
> note lines:
>
> sd 0:0:0:0: SCSI error: return code = 0x06000000
> end_request: I/O error, dev sda, sector 451792263
> raid1: sda1: rescheduling sector 451792200
> raid1: sdb1: redirecting sector 451792168 to another mirror
> raid1: sdb1: redirecting sector 451792200 to another mirror
>
> Is one disk going down? cat /proc/mdstat still shows software raid
> array as working one.
One disk is probably starting to fail. Are you getting SMART errors?
Have a look in /var/log/messages for smartd messages as well as kernel
I/O errors.
--
Robert Heller -- 978-544-6933 / heller@xxxxxxxxxxxx
Deepwoods Software -- http://www.deepsoft.com/
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