Hi,
i wanted to reassemble my Raid5.
Last week i added a new device to my raid5 with 6 devices.
After the reshape, mdadm said, device 7 is failed. I tested the device and
there are a lot of bad blocks.
So i removed the device from the raid, resized the filesystem and during the
reshape, device #3 was removed from the raid and the reshape was canceled.
Yesterday i removed the 7th device from the computer and now,
the raid doesnt start.
mdadm --assemble --verbose /dev/md0 /dev/sda1 /dev/sdb1 /dev/sdc1 /dev/sdd1
/dev/sde1/dev/sdf1
mdadm: looking for devices for /dev/md0
mdadm: /dev/sda1 is identified as a member of /dev/md0, slot 1.
mdadm: /dev/sdb1 is identified as a member of /dev/md0, slot 5.
mdadm: /dev/sdc1 is identified as a member of /dev/md0, slot -1.
mdadm: /dev/sdd1 is identified as a member of /dev/md0, slot 0.
mdadm: /dev/sde1 is identified as a member of /dev/md0, slot 4.
mdadm: /dev/sdf1 is identified as a member of /dev/md0, slot 2.
mdadm: device 7 in /dev/md0 has wrong state in superblock, but /dev/sdc1 seems
ok
mdadm:/dev/md0 has an active reshape - checking if critical section needs to be
restored
mdadm: added /dev/sda1 to /dev/md0 as 1
mdadm: added /dev/sdf1 to /dev/md0 as 2
mdadm: no uptodate device for slot 3 of /dev/md0
mdadm: added /dev/sde1 to /dev/md0 as 4
mdadm: added /dev/sdb1 to /dev/md0 as 5
mdadm: no uptodate device for slot 6 of /dev/md0
mdadm: added /dev/sdc1 to /dev/md0 as -1
mdadm: added /dev/sdd1 to /dev/md0 as 0
mdadm: /dev/md0 assembled from 5 drives and 1 spare - not enough to start the
array.
mdadm --run /dev/md0
mdadm: failed to run array /dev/md0: Input/output error
mdadm -D /dev/md0
/dev/md0:
Version : 1.2
Creation Time : Fri Feb 22 22:08:12 2013
Raid Level : raid5
Used Dev Size : 976630272 (931.39 GiB 1000.07 GB)
Raid Devices : 6
Total Devices : 6
Persistence : Superblock is persistent
Update Time : Thu Mar 21 15:50:39 2013
State : active, degraded, Not Started
Active Devices : 5
Working Devices : 6
Failed Devices : 0
Spare Devices : 1
Layout : left-symmetric
Chunk Size : 512K
Delta Devices : -1, (7->6)
Name : server:0 (local to host server)
UUID : 1db312ca:48cd4f30:e8607949:0c721b94
Events : 38267
Number Major Minor RaidDevice State
0 8 49 0 active sync /dev/sdd1
1 8 1 1 active sync /dev/sda1
3 8 81 2 active sync /dev/sdf1
3 0 0 3 removed
5 8 65 4 active sync /dev/sde1
6 8 17 5 active sync /dev/sdb1
7 8 33 - spare /dev/sdc1
What can i do to rescue my data?
Thx
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