From: Adam Huffman <bloch@verdurin.com>
To: linux-raid@vger.kernel.org
Subject: RAID1 array losing one member
Date: Wed, 4 Nov 2009 16:18:01 +0000 [thread overview]
Message-ID: <20091104161801.GC20938@shuttle.verdurin.salon> (raw)
I have an annoying problem with a RAID1 array.
One of the members keeps dropping out of the array:
/dev/md0:
Version : 0.90
Creation Time : Sun Jun 28 13:24:02 2009
Raid Level : raid1
Array Size : 732571904 (698.64 GiB 750.15 GB)
Used Dev Size : 732571904 (698.64 GiB 750.15 GB)
Raid Devices : 2
Total Devices : 2
Preferred Minor : 0
Persistence : Superblock is persistent
Update Time : Wed Nov 4 16:12:36 2009
State : clean, degraded
Active Devices : 1
Working Devices : 1
Failed Devices : 1
Spare Devices : 0
UUID : 281b623a:4f01e4e1:36bee1ae:cd0903da
Events : 0.4682740
Number Major Minor RaidDevice State
0 8 1 0 active sync /dev/sda1
1 0 0 1 removed
2 8 17 - faulty spare /dev/sdb1
I've run extended SMART self-tests and the manufacturer's diagnostic
test on the drive - in neither case is any error found.
When I try to re-add the disk, reconstruction of the array begins.
However, it always fails, at different points.
Is there another test I can run to see what might be wrong with the
drive? Could this be a different MD problem?
The machine is running Fedora 10,
kernel 2.6.27.37-170.2.104.fc10.x86_64.
This is the device that keeps failing:
/dev/sdb1:
Magic : a92b4efc
Version : 0.90.00
UUID : 281b623a:4f01e4e1:36bee1ae:cd0903da
Creation Time : Sun Jun 28 13:24:02 2009
Raid Level : raid1
Used Dev Size : 732571904 (698.64 GiB 750.15 GB)
Array Size : 732571904 (698.64 GiB 750.15 GB)
Raid Devices : 2
Total Devices : 2
Preferred Minor : 0
Update Time : Tue Nov 3 17:20:42 2009
State : active
Active Devices : 1
Working Devices : 2
Failed Devices : 1
Spare Devices : 1
Checksum : e5396754 - correct
Events : 4651695
Number Major Minor RaidDevice State
this 2 8 17 2 spare /dev/sdb1
0 0 8 1 0 active sync /dev/sda1
1 1 0 0 1 faulty removed
2 2 8 17 2 spare /dev/sdb1
Adam
next reply other threads:[~2009-11-04 16:18 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-04 16:18 Adam Huffman [this message]
2009-11-04 17:43 ` RAID1 array losing one member Simon Jackson
2009-11-04 17:55 ` Adam Huffman
2009-11-04 19:57 ` Michael Evans
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