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Hi!
I run a 3 disk RAID5 on a debian 2.6.26 machine.
Last weekend one of that disk went bad and the raid went on with 2 disks.
Now I restarted and added the 3d disk and the RAID5 went crazy, callind
disks after disk faulty and (S)... and I do not know why.
Information:
mdadm -E /dev/md1 /dev/sde1
mdadm: No md superblock detected on /dev/md1.
/dev/sde1:
Magic : a92b4efc
Version : 00.90.02
UUID : d9fde523:3bcc01a6:041868f5:0ec5fcb6
Creation Time : Tue Jan 17 14:30:37 2006
Raid Level : raid5
Used Dev Size : 976759936 (931.51 GiB 1000.20 GB)
Array Size : 1953519872 (1863.02 GiB 2000.40 GB)
Raid Devices : 3
Total Devices : 3
Preferred Minor : 1
Update Time : Thu Dec 11 14:46:37 2008
State : clean
Active Devices : 2
Working Devices : 3
Failed Devices : 0
Spare Devices : 1
Checksum : 9972dbb9 - correct
Events : 2851680
Layout : left-symmetric
Chunk Size : 128K
Number Major Minor RaidDevice State
this 1 8 65 1 active sync /dev/sde1
0 0 0 0 0 removed
1 1 8 65 1 active sync /dev/sde1
2 2 8 97 2 active sync /dev/sdg1
3 3 8 49 3 spare /dev/sdd1
trinculo:~# mdadm -E /dev/md1 /dev/sdg1
mdadm: No md superblock detected on /dev/md1.
/dev/sdg1:
Magic : a92b4efc
Version : 00.90.02
UUID : d9fde523:3bcc01a6:041868f5:0ec5fcb6
Creation Time : Tue Jan 17 14:30:37 2006
Raid Level : raid5
Used Dev Size : 976759936 (931.51 GiB 1000.20 GB)
Array Size : 1953519872 (1863.02 GiB 2000.40 GB)
Raid Devices : 3
Total Devices : 2
Preferred Minor : 1
Update Time : Thu Dec 11 14:55:06 2008
State : clean
Active Devices : 1
Working Devices : 1
Failed Devices : 1
Spare Devices : 0
Checksum : 9972ddaf - correct
Events : 2851688
Layout : left-symmetric
Chunk Size : 128K
Number Major Minor RaidDevice State
this 2 8 97 2 active sync /dev/sdg1
0 0 0 0 0 removed
1 1 0 0 1 faulty removed
2 2 8 97 2 active sync
mdadm -E /dev/md1 /dev/sdd1
mdadm: No md superblock detected on /dev/md1.
/dev/sdd1:
Magic : a92b4efc
Version : 00.90.02
UUID : d9fde523:3bcc01a6:041868f5:0ec5fcb6
Creation Time : Tue Jan 17 14:30:37 2006
Raid Level : raid5
Used Dev Size : 976759936 (931.51 GiB 1000.20 GB)
Array Size : 1953519872 (1863.02 GiB 2000.40 GB)
Raid Devices : 3
Total Devices : 3
Preferred Minor : 1
Update Time : Thu Dec 11 14:46:49 2008
State : clean
Active Devices : 1
Working Devices : 2
Failed Devices : 1
Spare Devices : 1
Checksum : 9972dbca - correct
Events : 2851686
Layout : left-symmetric
Chunk Size : 128K
Number Major Minor RaidDevice State
this 3 8 49 3 spare /dev/sdd1
0 0 0 0 0 removed
1 1 0 0 1 faulty removed
2 2 8 97 2 active sync /dev/sdg1
3 3 8 49 3 spare /dev/sdd1
In which /dev/sdd went bad and was offline.
How can I try to reassemble that raid5?
MfG,
Lars Schimmer
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- -------------------------------------------------------------
TU Graz, Institut für ComputerGraphik & WissensVisualisierung
Tel: +43 316 873-5405 E-Mail: l.schimmer@xxxxxxxxxxxxx
Fax: +43 316 873-5402 PGP-Key-ID: 0x4A9B1723
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