Looks like data corruption
I have seen this before - I have used mdadm to remove sda from the RAID
mirror, fdisk to remove the partitions from sda (clean the drive)
Then I run mdchk again to have sda reformatted and added back to the mirror
once more.
Alternatively, power down, take sda out and fdisk it on another system
(using a boot floppy) and then shove it back into the server and turn it on.
This was a common problem on the Cobalt Raq550 servers.
Regards
Paul
________________________
Paul Wilson
Microsoft Certified Systems Engineer
paulw (at mark) swiftinter.net
http://www.swiftinter.net
Tel: 01527 500940
Fax: 01527 500934
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----- Original Message -----
From: "Gerald Waugh" <gwaugh (at mark) frontstreetnetworks.com>
To: <coba-e (at mark) bluequartz.org>
Sent: Monday, September 11, 2006 7:36 PM
Subject: [coba-e:06831] Re: BQ RAID
>>
>> What can one make of this output? Note the change once I ran mdchk.
>>
>> [root@juhfah ~]# cat /proc/mdstat
>> Personalities : [raid1]
>> md1 : active raid1 sdb2[1]
>> 6289344 blocks [2/1] [_U]
>>
>> md3 : active raid1 sda3[2](F) sdb3[1]
>> 4192896 blocks [2/1] [_U]
>>
>> md5 : active raid1 sdb5[1] sda5[0]
>> 1052160 blocks [2/2] [UU]
>>
>> md2 : active raid1 sda2[2](F) sdb6[1]
>> 1052160 blocks [2/1] [_U]
>>
>> md4 : active raid1 sdb7[1]
>> 231504576 blocks [2/1] [_U]
>>
>> md0 : active raid1 sdb1[1] sda1[0]
>> 104320 blocks [2/2] [UU]
>>
>> unused devices: <none>
>
> Looks like a problem with sda, note that sdb is mounted on each
> partition
> But sda is not!
>
> Gerald
>
>
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