Hello,
the raid5 on my Iomega Storecenter ix4 is not starting up anymore.
as far as i can see, 2 of the Memberdisks were switched from active to
spare.
configuration: 4x 1TB Harddrive, no changes done, error occured while
running.
the funny thing is, there is an additional raid5 (1GB on each disk) that is
still running.
waht are the chances the data on the drives is still intact, how can i get
the
raid running again and how risky is the process (is it neccesary to get
additional drives for cloning)?
here the mdadm --examine ouput
/dev/sda2:
Magic : a92b4efc
Version : 00.90.00
UUID : 835af38b:cb4edece:860bf3ca:97c28e09
Creation Time : Fri Jul 24 08:04:50 2009
Raid Level : raid5
Used Dev Size : 975742336 (930.54 GiB 999.16 GB)
Array Size : 2927227008 (2791.62 GiB 2997.48 GB)
Raid Devices : 4
Total Devices : 4
Preferred Minor : 1
Update Time : Fri Oct 18 07:51:35 2013
State : clean
Active Devices : 2
Working Devices : 4
Failed Devices : 2
Spare Devices : 2
Checksum : ecc62357 - correct
Events : 0.1531645
Layout : left-symmetric
Chunk Size : 64K
Number Major Minor RaidDevice State
this 0 8 2 0 active sync /dev/sda2
0 0 8 2 0 active sync /dev/sda2
1 1 8 18 1 active sync /dev/sdb2
2 2 0 0 2 faulty removed
3 3 0 0 3 faulty removed
4 4 8 34 4 spare /dev/sdc2
5 5 8 50 5 spare /dev/sdd2
/dev/sdb2:
Magic : a92b4efc
Version : 00.90.00
UUID : 835af38b:cb4edece:860bf3ca:97c28e09
Creation Time : Fri Jul 24 08:04:50 2009
Raid Level : raid5
Used Dev Size : 975742336 (930.54 GiB 999.16 GB)
Array Size : 2927227008 (2791.62 GiB 2997.48 GB)
Raid Devices : 4
Total Devices : 4
Preferred Minor : 1
Update Time : Fri Oct 18 07:51:35 2013
State : clean
Active Devices : 2
Working Devices : 4
Failed Devices : 2
Spare Devices : 2
Checksum : ecc62369 - correct
Events : 0.1531645
Layout : left-symmetric
Chunk Size : 64K
Number Major Minor RaidDevice State
this 1 8 18 1 active sync /dev/sdb2
0 0 8 2 0 active sync /dev/sda2
1 1 8 18 1 active sync /dev/sdb2
2 2 0 0 2 faulty removed
3 3 0 0 3 faulty removed
4 4 8 34 4 spare /dev/sdc2
5 5 8 50 5 spare /dev/sdd2
/dev/sdc2:
Magic : a92b4efc
Version : 00.90.00
UUID : 835af38b:cb4edece:860bf3ca:97c28e09
Creation Time : Fri Jul 24 08:04:50 2009
Raid Level : raid5
Used Dev Size : 975742336 (930.54 GiB 999.16 GB)
Array Size : 2927227008 (2791.62 GiB 2997.48 GB)
Raid Devices : 4
Total Devices : 4
Preferred Minor : 1
Update Time : Fri Oct 18 07:51:35 2013
State : clean
Active Devices : 2
Working Devices : 4
Failed Devices : 2
Spare Devices : 2
Checksum : ecc62379 - correct
Events : 0.1531645
Layout : left-symmetric
Chunk Size : 64K
Number Major Minor RaidDevice State
this 4 8 34 4 spare /dev/sdc2
0 0 8 2 0 active sync /dev/sda2
1 1 8 18 1 active sync /dev/sdb2
2 2 0 0 2 faulty removed
3 3 0 0 3 faulty removed
4 4 8 34 4 spare /dev/sdc2
5 5 8 50 5 spare /dev/sdd2
/dev/sdd2:
Magic : a92b4efc
Version : 00.90.00
UUID : 835af38b:cb4edece:860bf3ca:97c28e09
Creation Time : Fri Jul 24 08:04:50 2009
Raid Level : raid5
Used Dev Size : 975742336 (930.54 GiB 999.16 GB)
Array Size : 2927227008 (2791.62 GiB 2997.48 GB)
Raid Devices : 4
Total Devices : 4
Preferred Minor : 1
Update Time : Fri Oct 18 07:51:35 2013
State : clean
Active Devices : 2
Working Devices : 4
Failed Devices : 2
Spare Devices : 2
Checksum : ecc6238b - correct
Events : 0.1531645
Layout : left-symmetric
Chunk Size : 64K
Number Major Minor RaidDevice State
this 5 8 50 5 spare /dev/sdd2
0 0 8 2 0 active sync /dev/sda2
1 1 8 18 1 active sync /dev/sdb2
2 2 0 0 2 faulty removed
3 3 0 0 3 faulty removed
4 4 8 34 4 spare /dev/sdc2
5 5 8 50 5 spare /dev/sdd2
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