Hi!
After drive failure I used to have a degraded raid-5 array on
sd[cde]1. When resyncing, after adding a new spare drive, another
drive failed. I hastily dd_rescue'd it to the intended spare. A mere
80 kB were unreadable. Now I'd like to start the resulting mess, but I
think the device I copied to, sdd1, is only recognised as a spare:
$ mdadm -A /dev/md0 /dev/sd[cde]1
mdadm: /dev/md0 assembled from 2 drives and 1 spare - not enough to
start the array.
$ mdadm -A /dev/md0 --force /dev/sd[cde]1
mdadm: /dev/md0 assembled from 2 drives and 1 spare - not enough to
start the array.
How can I fix it all up so that it starts again?
/dev/sde1:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : 460f8b36:b1603b5b:e990ddad:ef078ba9
Name : purgatory:0
Creation Time : Tue Jun 10 18:01:20 2008
Raid Level : raid5
Raid Devices : 4
Used Dev Size : 1953519730 (931.51 GiB 1000.20 GB)
Array Size : 5860558848 (2794.53 GiB 3000.61 GB)
Used Size : 1953519616 (931.51 GiB 1000.20 GB)
Data Offset : 272 sectors
Super Offset : 8 sectors
State : clean
Device UUID : 1e86a7cb:dd1f6f2a:86c4ed3d:5f26f4b3
Update Time : Wed Feb 4 11:53:32 2009
Checksum : cf1e6f58 - correct
Events : 38348
Layout : left-symmetric
Chunk Size : 64K
Array Slot : 1 (0, 1, failed, failed, failed)
Array State : uU__ 3 failed
/dev/sdd1:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : 460f8b36:b1603b5b:e990ddad:ef078ba9
Name : purgatory:0
Creation Time : Tue Jun 10 18:01:20 2008
Raid Level : raid5
Raid Devices : 4
Used Dev Size : 1953519730 (931.51 GiB 1000.20 GB)
Array Size : 5860558848 (2794.53 GiB 3000.61 GB)
Used Size : 1953519616 (931.51 GiB 1000.20 GB)
Data Offset : 272 sectors
Super Offset : 8 sectors
State : clean
Device UUID : 123f6486:a905181a:006d7805:c9c44694
Update Time : Wed Feb 4 11:53:32 2009
Checksum : 216154fa - correct
Events : 38342
Layout : left-symmetric
Chunk Size : 64K
Array Slot : 4 (0, 1, failed, failed)
Array State : uu__ 2 failed
/dev/sdc1:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : 460f8b36:b1603b5b:e990ddad:ef078ba9
Name : purgatory:0
Creation Time : Tue Jun 10 18:01:20 2008
Raid Level : raid5
Raid Devices : 4
Used Dev Size : 1953519730 (931.51 GiB 1000.20 GB)
Array Size : 5860558848 (2794.53 GiB 3000.61 GB)
Used Size : 1953519616 (931.51 GiB 1000.20 GB)
Data Offset : 272 sectors
Super Offset : 8 sectors
State : clean
Device UUID : 3e165b62:0e929fe2:91ef7462:14f4deec
Update Time : Wed Feb 4 11:53:32 2009
Checksum : 7b746a69 - correct
Events : 38348
Layout : left-symmetric
Chunk Size : 64K
Array Slot : 0 (0, 1, failed, failed, failed)
Array State : Uu__ 3 failed
--
Thanks,
Max.
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