hi folks,
what's the safest way to get this array back into r/o mode?
thanks,
-ch
ch@xxxxxxxxxxxxxx
ch@snaggle:~$ sudo mdadm --examine /dev/sd[defg]1 | egrep 'Event|^/dev/sd'
/dev/sdd1:
Events : 286024
/dev/sde1:
Events : 286011
/dev/sdf1:
Events : 286024
/dev/sdg1:
Events : 286024
ch@snaggle:~$ sudo mdadm --assemble --force /dev/md0 /dev/sdd1
/dev/sde1 /sdg1
mdadm: cannot open device /sdg1: No such file or directory
mdadm: /sdg1 has no superblock - assembly aborted
ch@snaggle:~$ sudo mdadm --assemble --force /dev/md0 /dev/sdd1 /dev/sde1
mdadm: ignoring /dev/sde1 as it reports /dev/sdd1 as failed
mdadm: /dev/md0 assembled from 0 drives and 1 spare - not enough to
start the array.
ch@snaggle:~$ sudo mdadm -E /dev/sd[defg]1
/dev/sdd1:
Magic : a92b4efc
Version : 0.90.00
UUID : 48af1ed4:8978e992:f8a6b934:875c877f (local to host snaggle)
Creation Time : Mon May 23 00:02:10 2011
Raid Level : raid6
Used Dev Size : 1465135936 (1397.26 GiB 1500.30 GB)
Array Size : 2930271872 (2794.53 GiB 3000.60 GB)
Raid Devices : 4
Total Devices : 4
Preferred Minor : 0
Update Time : Tue Dec 3 21:19:31 2013
State : clean
Active Devices : 1
Working Devices : 3
Failed Devices : 2
Spare Devices : 2
Checksum : f32d49b0 - correct
Events : 286024
Layout : left-symmetric
Chunk Size : 64K
Number Major Minor RaidDevice State
this 4 8 33 4 spare
0 0 0 0 0 removed
1 1 0 0 1 faulty removed
2 2 8 65 2 active sync /dev/sde1
3 3 0 0 3 faulty removed
4 4 8 33 4 spare
5 5 8 81 5 spare /dev/sdf1
/dev/sde1:
Magic : a92b4efc
Version : 0.90.00
UUID : 48af1ed4:8978e992:f8a6b934:875c877f (local to host snaggle)
Creation Time : Mon May 23 00:02:10 2011
Raid Level : raid6
Used Dev Size : 1465135936 (1397.26 GiB 1500.30 GB)
Array Size : 2930271872 (2794.53 GiB 3000.60 GB)
Raid Devices : 4
Total Devices : 4
Preferred Minor : 0
Update Time : Sun Dec 1 18:03:17 2013
State : clean
Active Devices : 2
Working Devices : 4
Failed Devices : 1
Spare Devices : 2
Checksum : f32a7899 - correct
Events : 286011
Layout : left-symmetric
Chunk Size : 64K
Number Major Minor RaidDevice State
this 1 8 49 1 active sync /dev/sdd1
0 0 0 0 0 removed
1 1 8 49 1 active sync /dev/sdd1
2 2 8 65 2 active sync /dev/sde1
3 3 0 0 3 faulty removed
4 4 8 33 4 spare
5 5 8 81 5 spare /dev/sdf1
/dev/sdf1:
Magic : a92b4efc
Version : 0.90.00
UUID : 48af1ed4:8978e992:f8a6b934:875c877f (local to host snaggle)
Creation Time : Mon May 23 00:02:10 2011
Raid Level : raid6
Used Dev Size : 1465135936 (1397.26 GiB 1500.30 GB)
Array Size : 2930271872 (2794.53 GiB 3000.60 GB)
Raid Devices : 4
Total Devices : 4
Preferred Minor : 0
Update Time : Tue Dec 3 21:19:31 2013
State : clean
Active Devices : 1
Working Devices : 3
Failed Devices : 2
Spare Devices : 2
Checksum : f32d49d2 - correct
Events : 286024
Layout : left-symmetric
Chunk Size : 64K
Number Major Minor RaidDevice State
this 2 8 65 2 active sync /dev/sde1
0 0 0 0 0 removed
1 1 0 0 1 faulty removed
2 2 8 65 2 active sync /dev/sde1
3 3 0 0 3 faulty removed
4 4 8 33 4 spare
5 5 8 81 5 spare /dev/sdf1
/dev/sdg1:
Magic : a92b4efc
Version : 0.90.00
UUID : 48af1ed4:8978e992:f8a6b934:875c877f (local to host snaggle)
Creation Time : Mon May 23 00:02:10 2011
Raid Level : raid6
Used Dev Size : 1465135936 (1397.26 GiB 1500.30 GB)
Array Size : 2930271872 (2794.53 GiB 3000.60 GB)
Raid Devices : 4
Total Devices : 4
Preferred Minor : 0
Update Time : Tue Dec 3 21:19:31 2013
State : clean
Active Devices : 1
Working Devices : 3
Failed Devices : 2
Spare Devices : 2
Checksum : f32d49e2 - correct
Events : 286024
Layout : left-symmetric
Chunk Size : 64K
Number Major Minor RaidDevice State
this 5 8 81 5 spare /dev/sdf1
0 0 0 0 0 removed
1 1 0 0 1 faulty removed
2 2 8 65 2 active sync /dev/sde1
3 3 0 0 3 faulty removed
4 4 8 33 4 spare
5 5 8 81 5 spare /dev/sdf1
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