From: "Florian D." <flockmock@gmx.at>
To: linux-kernel@vger.kernel.org
Subject: cannot add device to partitioned raid6 array
Date: Sat, 31 Mar 2007 23:44:35 +0000 [thread overview]
Message-ID: <460EF263.7020505@gmx.at> (raw)
hi list!
in short:
I created a partitioned raid6 array with 2 missing drives. Now, I want to add a device. It fails with:
flockmock ~ # mdadm -a /dev/md_d4 /dev/sdb2
mdadm: add new device failed for /dev/sdb2 as 4: Invalid argument
I think it is the same problem as in:
http://marc.info/?l=linux-raid&m=115316147716600&w=2
details:
kernel 2.6.20.4
mdadm-2.6.1
the raid6 array:
flockmock ~ # mdadm --detail /dev/md_d4
/dev/md_d4:
Version : 00.90.03
Creation Time : Sat Mar 31 19:48:58 2007
Raid Level : raid6
Array Size : 490030464 (467.33 GiB 501.79 GB)
Used Dev Size : 245015232 (233.66 GiB 250.90 GB)
Raid Devices : 4
Total Devices : 2
Preferred Minor : 4
Persistence : Superblock is persistent
Update Time : Sat Mar 31 23:28:37 2007
State : clean, degraded
Active Devices : 2
Working Devices : 2
Failed Devices : 0
Spare Devices : 0
Chunk Size : 32K
UUID : dfb5e536:2447b984:b7699fd8:8ba37cbf
Events : 0.2972
Number Major Minor RaidDevice State
0 8 2 0 active sync /dev/sda2
1 8 34 1 active sync /dev/sdc2
2 0 0 2 removed
3 0 0 3 removed
the device, which I want to add:
flockmock ~ # mdadm -E /dev/sdb2
/dev/sdb2:
Magic : a92b4efc
Version : 00.90.00
UUID : dfb5e536:2447b984:b7699fd8:8ba37cbf
Creation Time : Sat Mar 31 19:48:58 2007
Raid Level : raid6
Used Dev Size : 245015232 (233.66 GiB 250.90 GB)
Array Size : 490030464 (467.33 GiB 501.79 GB)
Raid Devices : 4
Total Devices : 2
Preferred Minor : 4
Update Time : Sat Mar 31 23:29:23 2007
State : clean
Active Devices : 2
Working Devices : 2
Failed Devices : 2
Spare Devices : 0
Checksum : 8aeeef56 - correct
Events : 0.2974
Chunk Size : 32K
Number Major Minor RaidDevice State
this 4 8 18 -1 spare /dev/sdb2
0 0 8 2 0 active sync /dev/sda2
1 1 8 34 1 active sync /dev/sdc2
2 2 0 0 2 faulty removed
3 3 0 0 3 faulty removed
dmesg shows such error mesgs:
[ 220.681135] md: sdb2 has invalid sb, not importing!
[ 220.681186] md: md_import_device returned -22
[ 220.681435] md: sdb2 has invalid sb, not importing!
[ 220.681463] md: md_import_device returned -22
any idea how to resolve this? thanks,
florian
PS: please cc me in replies, thanks.
next reply other threads:[~2007-04-01 0:02 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-31 23:44 Florian D. [this message]
2007-04-01 2:57 ` cannot add device to partitioned raid6 array Neil Brown
2007-04-01 9:25 ` Florian D.
2007-04-01 10:07 ` Neil Brown
2007-04-01 11:23 ` Florian D.
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