JBOD controller failed this morning - we've replaced it, and all
drives are being presented to the system again, however 'mdadm' refuses
to assemble the ARRAY. I've tried assembling with '--force' flags but
it still won't...any help most appreciated. I'm guessing I'll need to
recreate with '--assemble-clean'
[root@dsfs01 ~]cat /etc/redhat-release
CentOS release 6.6 (Final)
[root@dsfs01 ~]mdadm --version
mdadm - v3.3 - 3rd September 2013
[root@dsfs01 ~]uname -r
3.14.33
[root@dsfs01 ~]mdadm -A --force --verbose /dev/md10 /dev/sdbj /dev/sdbk
/dev/sdbl /dev/sdbm /dev/sdbn /dev/sdbo /dev/sdbp /dev/sdbq /dev/sdbi
/dev/sdbr /dev/sdbs /dev/sdbt
mdadm: looking for devices for /dev/md10
mdadm: /dev/sdbj is identified as a member of /dev/md10, slot 0.
mdadm: /dev/sdbk is identified as a member of /dev/md10, slot 1.
mdadm: /dev/sdbl is identified as a member of /dev/md10, slot 2.
mdadm: /dev/sdbm is identified as a member of /dev/md10, slot 3.
mdadm: /dev/sdbn is identified as a member of /dev/md10, slot 4.
mdadm: /dev/sdbo is identified as a member of /dev/md10, slot 5.
mdadm: /dev/sdbp is identified as a member of /dev/md10, slot 6.
mdadm: /dev/sdbq is identified as a member of /dev/md10, slot 7.
mdadm: /dev/sdbi is identified as a member of /dev/md10, slot 8.
mdadm: /dev/sdbr is identified as a member of /dev/md10, slot 9.
mdadm: /dev/sdbs is identified as a member of /dev/md10, slot 10.
mdadm: /dev/sdbt is identified as a member of /dev/md10, slot 11.
mdadm: added /dev/sdbk to /dev/md10 as 1
mdadm: added /dev/sdbl to /dev/md10 as 2
mdadm: added /dev/sdbm to /dev/md10 as 3
mdadm: added /dev/sdbn to /dev/md10 as 4
mdadm: added /dev/sdbo to /dev/md10 as 5
mdadm: added /dev/sdbp to /dev/md10 as 6 (possibly out of date)
mdadm: added /dev/sdbq to /dev/md10 as 7 (possibly out of date)
mdadm: added /dev/sdbi to /dev/md10 as 8 (possibly out of date)
mdadm: added /dev/sdbr to /dev/md10 as 9 (possibly out of date)
mdadm: added /dev/sdbs to /dev/md10 as 10 (possibly out of date)
mdadm: added /dev/sdbt to /dev/md10 as 11 (possibly out of date)
mdadm: added /dev/sdbj to /dev/md10 as 0
mdadm -E /dev/sdbj
/dev/sdbj:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : 903cfc6d:921b0a84:c0b4bc7e:27e28c86
Name : dsfs01:10 (local to host dsfs01)
Creation Time : Tue Nov 5 03:37:14 2013
Raid Level : raid6
Raid Devices : 12
Avail Dev Size : 7813775024 (3725.90 GiB 4000.65 GB)
Array Size : 39068871680 (37258.98 GiB 40006.52 GB)
Used Dev Size : 7813774336 (3725.90 GiB 4000.65 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
Unused Space : before=262064 sectors, after=688 sectors
State : clean
Device UUID : 3bd0e7f2:cfc24add:122a7354:049efe95
Update Time : Wed Mar 25 08:21:34 2015
Checksum : 4a952f6a - correct
Events : 7641
Layout : left-symmetric
Chunk Size : 256K
Device Role : Active device 0
Array State : AAAAAA...... ('A' == active, '.' == missing, 'R' ==
replacing)
mdadm -E /dev/sdbk
/dev/sdbk:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : 903cfc6d:921b0a84:c0b4bc7e:27e28c86
Name : dsfs01:10 (local to host dsfs01)
Creation Time : Tue Nov 5 03:37:14 2013
Raid Level : raid6
Raid Devices : 12
Avail Dev Size : 7813775024 (3725.90 GiB 4000.65 GB)
Array Size : 39068871680 (37258.98 GiB 40006.52 GB)
Used Dev Size : 7813774336 (3725.90 GiB 4000.65 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
Unused Space : before=262064 sectors, after=688 sectors
State : clean
Device UUID : 4ebd5ec0:24367c71:bd5d3b52:3910ebcb
Update Time : Wed Mar 25 08:21:34 2015
Checksum : dfec35ad - correct
Events : 7641
Layout : left-symmetric
Chunk Size : 256K
Device Role : Active device 1
Array State : AAAA........ ('A' == active, '.' == missing, 'R' ==
replacing)
mdadm -E /dev/sdbl
/dev/sdbl:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : 903cfc6d:921b0a84:c0b4bc7e:27e28c86
Name : dsfs01:10 (local to host dsfs01)
Creation Time : Tue Nov 5 03:37:14 2013
Raid Level : raid6
Raid Devices : 12
Avail Dev Size : 7813775024 (3725.90 GiB 4000.65 GB)
Array Size : 39068871680 (37258.98 GiB 40006.52 GB)
Used Dev Size : 7813774336 (3725.90 GiB 4000.65 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
Unused Space : before=262064 sectors, after=688 sectors
State : clean
Device UUID : 8cf70b24:9cd55339:08f408d7:7719469b
Update Time : Wed Mar 25 08:21:34 2015
Checksum : 5f99aeed - correct
Events : 7641
Layout : left-symmetric
Chunk Size : 256K
Device Role : Active device 2
Array State : AAAA........ ('A' == active, '.' == missing, 'R' ==
replacing)
mdadm -E /dev/sdbm
/dev/sdbm:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : 903cfc6d:921b0a84:c0b4bc7e:27e28c86
Name : dsfs01:10 (local to host dsfs01)
Creation Time : Tue Nov 5 03:37:14 2013
Raid Level : raid6
Raid Devices : 12
Avail Dev Size : 7813775024 (3725.90 GiB 4000.65 GB)
Array Size : 39068871680 (37258.98 GiB 40006.52 GB)
Used Dev Size : 7813774336 (3725.90 GiB 4000.65 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
Unused Space : before=262064 sectors, after=688 sectors
State : clean
Device UUID : 59816854:0a6eb50b:b8cb756e:497c2d77
Update Time : Wed Mar 25 08:21:34 2015
Checksum : d5ac0baa - correct
Events : 7641
Layout : left-symmetric
Chunk Size : 256K
Device Role : Active device 3
Array State : AAAA........ ('A' == active, '.' == missing, 'R' ==
replacing)
mdadm -E /dev/sdbn
/dev/sdbn:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : 903cfc6d:921b0a84:c0b4bc7e:27e28c86
Name : dsfs01:10 (local to host dsfs01)
Creation Time : Tue Nov 5 03:37:14 2013
Raid Level : raid6
Raid Devices : 12
Avail Dev Size : 7813775024 (3725.90 GiB 4000.65 GB)
Array Size : 39068871680 (37258.98 GiB 40006.52 GB)
Used Dev Size : 7813774336 (3725.90 GiB 4000.65 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
Unused Space : before=262064 sectors, after=688 sectors
State : active
Device UUID : 52c08937:e782b635:05d7f31c:7e7fa2ae
Update Time : Wed Mar 25 08:21:30 2015
Checksum : c8e56e1f - correct
Events : 7641
Layout : left-symmetric
Chunk Size : 256K
Device Role : Active device 4
Array State : AAAAAAAAAAAA ('A' == active, '.' == missing, 'R' ==
replacing)
mdadm -E /dev/sdbo
/dev/sdbo:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : 903cfc6d:921b0a84:c0b4bc7e:27e28c86
Name : dsfs01:10 (local to host dsfs01)
Creation Time : Tue Nov 5 03:37:14 2013
Raid Level : raid6
Raid Devices : 12
Avail Dev Size : 7813775024 (3725.90 GiB 4000.65 GB)
Array Size : 39068871680 (37258.98 GiB 40006.52 GB)
Used Dev Size : 7813774336 (3725.90 GiB 4000.65 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
Unused Space : before=262064 sectors, after=688 sectors
State : active
Device UUID : 2902c7b0:e0e0b31e:70e94404:1d8f10c4
Update Time : Wed Mar 25 08:21:30 2015
Checksum : 27df2ffb - correct
Events : 7641
Layout : left-symmetric
Chunk Size : 256K
Device Role : Active device 5
Array State : AAAAAAAAAAAA ('A' == active, '.' == missing, 'R' ==
replacing)
mdadm -E /dev/sdbp
/dev/sdbp:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : 903cfc6d:921b0a84:c0b4bc7e:27e28c86
Name : dsfs01:10 (local to host dsfs01)
Creation Time : Tue Nov 5 03:37:14 2013
Raid Level : raid6
Raid Devices : 12
Avail Dev Size : 7813775024 (3725.90 GiB 4000.65 GB)
Array Size : 39068871680 (37258.98 GiB 40006.52 GB)
Used Dev Size : 7813774336 (3725.90 GiB 4000.65 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
Unused Space : before=262064 sectors, after=688 sectors
State : active
Device UUID : d83bf256:a2f59330:e3209784:ee201d00
Update Time : Wed Mar 25 08:21:30 2015
Checksum : 9c4947ad - correct
Events : 7638
Layout : left-symmetric
Chunk Size : 256K
Device Role : Active device 6
Array State : AAAAAAAAAAAA ('A' == active, '.' == missing, 'R' ==
replacing)
mdadm -E /dev/sdbq
/dev/sdbq:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : 903cfc6d:921b0a84:c0b4bc7e:27e28c86
Name : dsfs01:10 (local to host dsfs01)
Creation Time : Tue Nov 5 03:37:14 2013
Raid Level : raid6
Raid Devices : 12
Avail Dev Size : 7813775024 (3725.90 GiB 4000.65 GB)
Array Size : 39068871680 (37258.98 GiB 40006.52 GB)
Used Dev Size : 7813774336 (3725.90 GiB 4000.65 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
Unused Space : before=262064 sectors, after=688 sectors
State : active
Device UUID : d2556b61:a6fa2608:7ad69e55:ff09a3f7
Update Time : Wed Mar 25 08:21:30 2015
Checksum : 46e30555 - correct
Events : 7638
Layout : left-symmetric
Chunk Size : 256K
Device Role : Active device 7
Array State : AAAAAAAAAAAA ('A' == active, '.' == missing, 'R' ==
replacing)
mdadm -E /dev/sdbi
/dev/sdbi:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : 903cfc6d:921b0a84:c0b4bc7e:27e28c86
Name : dsfs01:10 (local to host dsfs01)
Creation Time : Tue Nov 5 03:37:14 2013
Raid Level : raid6
Raid Devices : 12
Avail Dev Size : 7813775024 (3725.90 GiB 4000.65 GB)
Array Size : 39068871680 (37258.98 GiB 40006.52 GB)
Used Dev Size : 7813774336 (3725.90 GiB 4000.65 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
Unused Space : before=262064 sectors, after=688 sectors
State : active
Device UUID : 4a19a417:b2c5909e:496d5266:23228c19
Update Time : Wed Mar 25 08:21:30 2015
Checksum : c62242cc - correct
Events : 7638
Layout : left-symmetric
Chunk Size : 256K
Device Role : Active device 8
Array State : AAAAAAAAAAAA ('A' == active, '.' == missing, 'R' ==
replacing)
mdadm -E /dev/sdbr
/dev/sdbr:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : 903cfc6d:921b0a84:c0b4bc7e:27e28c86
Name : dsfs01:10 (local to host dsfs01)
Creation Time : Tue Nov 5 03:37:14 2013
Raid Level : raid6
Raid Devices : 12
Avail Dev Size : 7813775024 (3725.90 GiB 4000.65 GB)
Array Size : 39068871680 (37258.98 GiB 40006.52 GB)
Used Dev Size : 7813774336 (3725.90 GiB 4000.65 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
Unused Space : before=262064 sectors, after=688 sectors
State : active
Device UUID : 1074ca9b:d9db5522:17055a3c:b6e69869
Update Time : Wed Mar 25 08:21:30 2015
Checksum : f422101b - correct
Events : 7638
Layout : left-symmetric
Chunk Size : 256K
Device Role : Active device 9
Array State : AAAAAAAAAAAA ('A' == active, '.' == missing, 'R' ==
replacing)
mdadm -E /dev/sdbs
/dev/sdbs:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : 903cfc6d:921b0a84:c0b4bc7e:27e28c86
Name : dsfs01:10 (local to host dsfs01)
Creation Time : Tue Nov 5 03:37:14 2013
Raid Level : raid6
Raid Devices : 12
Avail Dev Size : 7813775024 (3725.90 GiB 4000.65 GB)
Array Size : 39068871680 (37258.98 GiB 40006.52 GB)
Used Dev Size : 7813774336 (3725.90 GiB 4000.65 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
Unused Space : before=262064 sectors, after=688 sectors
State : active
Device UUID : 13afb79f:7d24a231:b5e165ab:6faff1c7
Update Time : Wed Mar 25 08:21:30 2015
Checksum : d4c0391b - correct
Events : 7638
Layout : left-symmetric
Chunk Size : 256K
Device Role : Active device 10
Array State : AAAAAAAAAAAA ('A' == active, '.' == missing, 'R' ==
replacing)
mdadm -E /dev/sdbt
/dev/sdbt:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : 903cfc6d:921b0a84:c0b4bc7e:27e28c86
Name : dsfs01:10 (local to host dsfs01)
Creation Time : Tue Nov 5 03:37:14 2013
Raid Level : raid6
Raid Devices : 12
Avail Dev Size : 7813775024 (3725.90 GiB 4000.65 GB)
Array Size : 39068871680 (37258.98 GiB 40006.52 GB)
Used Dev Size : 7813774336 (3725.90 GiB 4000.65 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
Unused Space : before=262064 sectors, after=688 sectors
State : active
Device UUID : 3cc36ae5:6965ba18:d5ed98bb:ec757657
Update Time : Wed Mar 25 08:21:30 2015
Checksum : a14360ce - correct
Events : 7638
Layout : left-symmetric
Chunk Size : 256K
Device Role : Active device 11
Array State : AAAAAAAAAAAA ('A' == active, '.' == missing, 'R' ==
replacing)
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