I have a raid 5 array with 4 250 G SATA HD's. Unfortunately I
experienced a recent power failure and 2 of the for raid drives were
off line. the SATA bay also gave another "sd" letter when the server
was rebooted.
I tried doing mdadm hot add but the raid array showed _UU_
I then stopped the raid array by issuing the commoand mdadm -S /dev/md2
When I tried to assemble back the raid device i using the command
mdadm -A /dev/md2 I get the message:
"mdadm: No suitable drives found for /dev/md2"
I don't know what to do. Can anyone help me please
I issued the command mdadm -E /dev/sd[eghi]1 and here is the output
/dev/sde1:
Magic : a92b4efc
Version : 00.90.00
UUID : d4a147c5:e0becc25:016c505b:8cadcf3a
Creation Time : Fri Sep 22 19:53:44 2006
Raid Level : raid5
Used Dev Size : 244195840 (232.88 GiB 250.06 GB)
Array Size : 732587520 (698.65 GiB 750.17 GB)
Raid Devices : 4
Total Devices : 8
Preferred Minor : 2
Update Time : Wed May 21 21:22:28 2008
State : clean
Active Devices : 2
Working Devices : 6
Failed Devices : 3
Spare Devices : 4
Checksum : 8ae5afe5 - correct
Events : 0.20144484
Layout : left-symmetric
Chunk Size : 128K
Number Major Minor RaidDevice State
this 5 8 145 5 spare /dev/sdj1
0 0 0 0 0 removed
1 1 8 97 1 active sync /dev/sdg1
2 2 8 113 2 active sync /dev/sdh1
3 3 0 0 3 faulty removed
4 4 8 177 4 spare /dev/sdl1
5 5 8 145 5 spare /dev/sdj1
6 6 8 193 6 spare /dev/sdm1
7 7 8 209 7 spare /dev/sdn1
/dev/sdg1:
Magic : a92b4efc
Version : 00.90.00
UUID : d4a147c5:e0becc25:016c505b:8cadcf3a
Creation Time : Fri Sep 22 19:53:44 2006
Raid Level : raid5
Used Dev Size : 244195840 (232.88 GiB 250.06 GB)
Array Size : 732587520 (698.65 GiB 750.17 GB)
Raid Devices : 4
Total Devices : 8
Preferred Minor : 2
Update Time : Wed May 21 21:22:28 2008
State : clean
Active Devices : 2
Working Devices : 6
Failed Devices : 3
Spare Devices : 4
Checksum : 8ae5b003 - correct
Events : 0.20144484
Layout : left-symmetric
Chunk Size : 128K
Number Major Minor RaidDevice State
this 4 8 177 4 spare /dev/sdl1
0 0 0 0 0 removed
1 1 8 97 1 active sync /dev/sdg1
2 2 8 113 2 active sync /dev/sdh1
3 3 0 0 3 faulty removed
4 4 8 177 4 spare /dev/sdl1
5 5 8 145 5 spare /dev/sdj1
6 6 8 193 6 spare /dev/sdm1
7 7 8 209 7 spare /dev/sdn1
/dev/sdh1:
Magic : a92b4efc
Version : 00.90.00
UUID : d4a147c5:e0becc25:016c505b:8cadcf3a
Creation Time : Fri Sep 22 19:53:44 2006
Raid Level : raid5
Used Dev Size : 244195840 (232.88 GiB 250.06 GB)
Array Size : 732587520 (698.65 GiB 750.17 GB)
Raid Devices : 4
Total Devices : 8
Preferred Minor : 2
Update Time : Wed May 21 21:22:28 2008
State : clean
Active Devices : 2
Working Devices : 6
Failed Devices : 3
Spare Devices : 4
Checksum : 8ae5b017 - correct
Events : 0.20144484
Layout : left-symmetric
Chunk Size : 128K
Number Major Minor RaidDevice State
this 6 8 193 6 spare /dev/sdm1
0 0 0 0 0 removed
1 1 8 97 1 active sync /dev/sdg1
2 2 8 113 2 active sync /dev/sdh1
3 3 0 0 3 faulty removed
4 4 8 177 4 spare /dev/sdl1
5 5 8 145 5 spare /dev/sdj1
6 6 8 193 6 spare /dev/sdm1
7 7 8 209 7 spare /dev/sdn1
/dev/sdi1:
Magic : a92b4efc
Version : 00.90.00
UUID : d4a147c5:e0becc25:016c505b:8cadcf3a
Creation Time : Fri Sep 22 19:53:44 2006
Raid Level : raid5
Used Dev Size : 244195840 (232.88 GiB 250.06 GB)
Array Size : 732587520 (698.65 GiB 750.17 GB)
Raid Devices : 4
Total Devices : 8
Preferred Minor : 2
Update Time : Wed May 21 21:22:28 2008
State : clean
Active Devices : 2
Working Devices : 6
Failed Devices : 3
Spare Devices : 4
Checksum : 8ae5b029 - correct
Events : 0.20144484
Layout : left-symmetric
Chunk Size : 128K
Number Major Minor RaidDevice State
this 7 8 209 7 spare /dev/sdn1
0 0 0 0 0 removed
1 1 8 97 1 active sync /dev/sdg1
2 2 8 113 2 active sync /dev/sdh1
3 3 0 0 3 faulty removed
4 4 8 177 4 spare /dev/sdl1
5 5 8 145 5 spare /dev/sdj1
6 6 8 193 6 spare /dev/sdm1
7 7 8 209 7 spare /dev/sdn1
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