So here's the /proc/mdstat prior to the array failure:
---cut---
Personalities : [linear] [multipath] [raid0] [raid1]
[raid6] [raid5] [raid4] [raid10]
md1 : active raid5 sdc1[0](S) sdf1[5] sdb1[4] sda1[3]
sde1[2] sdd1[1]
976783616 blocks level 5, 32k chunk, algorithm 2
[5/4] [_UUUU]
[>....................] recovery = 0.0%
(237952/244195904) finish=427.0min speed=9518K/sec
---cut---
and here's the /proc/mdstat as it stands currently:
---cut---
Personalities : [linear] [multipath] [raid0] [raid1]
[raid6] [raid5] [raid4] [raid10]
md1 : active raid5 sdc1[5](S) sdf1[6](S) sdb1[4]
sda1[3] sde1[7](F) sdd1[1]
976783616 blocks level 5, 32k chunk, algorithm 2
[5/3] [_U_UU]
unused devices: <none>
---cut---
I think what I need to do is run:
mdadm -ARf /dev/md1 missing /dev/sd[baed]1
This should force the array back into a useable state,
yes?
(assuming that I'm correct and sde isn't really
busted).
And more importantly, if anyone can tell me how to
lock down the
disks so they are readonly so I can play around with
mdadm
re-assembly options without having to worry about
compeletly
destroying the array, that'd be awesome.
As usual, any help would be greatly appreciated.
I'll include the -E output from the drives in their
current state, if that helps:
nas# for t in a b c d e f ; do mdadm -E /dev/sd${t}1 >
sd${t}1.txt ; done
/dev/sda1:
Magic : a92b4efc
Version : 00.90.00
UUID : 8bc0e21c:ef63a964:93ce508e:500a32e2
Creation Time : Mon Sep 27 11:14:17 2004
Raid Level : raid5
Used Dev Size : 244195904 (232.88 GiB 250.06 GB)
Array Size : 976783616 (931.53 GiB 1000.23 GB)
Raid Devices : 5
Total Devices : 6
Preferred Minor : 1
Update Time : Sat Jun 16 23:22:03 2007
State : clean
Active Devices : 3
Working Devices : 5
Failed Devices : 1
Spare Devices : 2
Checksum : 9e863c27 - correct
Events : 0.67378
Layout : left-symmetric
Chunk Size : 32K
Number Major Minor RaidDevice State
this 3 8 1 3 active sync
/dev/sda1
0 0 0 0 0 removed
1 1 8 49 1 active sync
/dev/sdd1
2 2 0 0 2 faulty
removed
3 3 8 1 3 active sync
/dev/sda1
4 4 8 17 4 active sync
/dev/sdb1
5 5 8 33 5 spare
/dev/sdc1
6 6 8 81 6 spare
/dev/sdf1
/dev/sdb1:
Magic : a92b4efc
Version : 00.90.00
UUID : 8bc0e21c:ef63a964:93ce508e:500a32e2
Creation Time : Mon Sep 27 11:14:17 2004
Raid Level : raid5
Used Dev Size : 244195904 (232.88 GiB 250.06 GB)
Array Size : 976783616 (931.53 GiB 1000.23 GB)
Raid Devices : 5
Total Devices : 6
Preferred Minor : 1
Update Time : Sat Jun 16 23:22:03 2007
State : clean
Active Devices : 3
Working Devices : 5
Failed Devices : 1
Spare Devices : 2
Checksum : 9e863c39 - correct
Events : 0.67378
Layout : left-symmetric
Chunk Size : 32K
Number Major Minor RaidDevice State
this 4 8 17 4 active sync
/dev/sdb1
0 0 0 0 0 removed
1 1 8 49 1 active sync
/dev/sdd1
2 2 0 0 2 faulty
removed
3 3 8 1 3 active sync
/dev/sda1
4 4 8 17 4 active sync
/dev/sdb1
5 5 8 33 5 spare
/dev/sdc1
6 6 8 81 6 spare
/dev/sdf1
/dev/sdc1:
Magic : a92b4efc
Version : 00.90.00
UUID : 8bc0e21c:ef63a964:93ce508e:500a32e2
Creation Time : Mon Sep 27 11:14:17 2004
Raid Level : raid5
Used Dev Size : 244195904 (232.88 GiB 250.06 GB)
Array Size : 976783616 (931.53 GiB 1000.23 GB)
Raid Devices : 5
Total Devices : 6
Preferred Minor : 1
Update Time : Sat Jun 16 23:22:03 2007
State : clean
Active Devices : 3
Working Devices : 5
Failed Devices : 1
Spare Devices : 2
Checksum : 9e863c45 - correct
Events : 0.67378
Layout : left-symmetric
Chunk Size : 32K
Number Major Minor RaidDevice State
this 5 8 33 5 spare
/dev/sdc1
0 0 0 0 0 removed
1 1 8 49 1 active sync
/dev/sdd1
2 2 0 0 2 faulty
removed
3 3 8 1 3 active sync
/dev/sda1
4 4 8 17 4 active sync
/dev/sdb1
5 5 8 33 5 spare
/dev/sdc1
6 6 8 81 6 spare
/dev/sdf1
/dev/sdd1:
Magic : a92b4efc
Version : 00.90.00
UUID : 8bc0e21c:ef63a964:93ce508e:500a32e2
Creation Time : Mon Sep 27 11:14:17 2004
Raid Level : raid5
Used Dev Size : 244195904 (232.88 GiB 250.06 GB)
Array Size : 976783616 (931.53 GiB 1000.23 GB)
Raid Devices : 5
Total Devices : 6
Preferred Minor : 1
Update Time : Sat Jun 16 23:22:03 2007
State : clean
Active Devices : 3
Working Devices : 5
Failed Devices : 1
Spare Devices : 2
Checksum : 9e863c53 - correct
Events : 0.67378
Layout : left-symmetric
Chunk Size : 32K
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 0 0 2 faulty
removed
3 3 8 1 3 active sync
/dev/sda1
4 4 8 17 4 active sync
/dev/sdb1
5 5 8 33 5 spare
/dev/sdc1
6 6 8 81 6 spare
/dev/sdf1
/dev/sde1:
Magic : a92b4efc
Version : 00.90.00
UUID : 8bc0e21c:ef63a964:93ce508e:500a32e2
Creation Time : Mon Sep 27 11:14:17 2004
Raid Level : raid5
Used Dev Size : 244195904 (232.88 GiB 250.06 GB)
Array Size : 976783616 (931.53 GiB 1000.23 GB)
Raid Devices : 5
Total Devices : 4
Preferred Minor : 1
Update Time : Sat Jun 16 19:16:48 2007
State : clean
Active Devices : 4
Working Devices : 4
Failed Devices : 0
Spare Devices : 0
Checksum : 9e86022f - correct
Events : 0.67372
Layout : left-symmetric
Chunk Size : 32K
Number Major Minor RaidDevice State
this 2 8 65 2 active sync
/dev/sde1
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 8 1 3 active sync
/dev/sda1
4 4 8 17 4 active sync
/dev/sdb1
/dev/sdf1:
Magic : a92b4efc
Version : 00.90.00
UUID : 8bc0e21c:ef63a964:93ce508e:500a32e2
Creation Time : Mon Sep 27 11:14:17 2004
Raid Level : raid5
Used Dev Size : 244195904 (232.88 GiB 250.06 GB)
Array Size : 976783616 (931.53 GiB 1000.23 GB)
Raid Devices : 5
Total Devices : 6
Preferred Minor : 1
Update Time : Sat Jun 16 23:22:03 2007
State : clean
Active Devices : 3
Working Devices : 5
Failed Devices : 1
Spare Devices : 2
Checksum : 9e863c77 - correct
Events : 0.67378
Layout : left-symmetric
Chunk Size : 32K
Number Major Minor RaidDevice State
this 6 8 81 6 spare
/dev/sdf1
0 0 0 0 0 removed
1 1 8 49 1 active sync
/dev/sdd1
2 2 0 0 2 faulty
removed
3 3 8 1 3 active sync
/dev/sda1
4 4 8 17 4 active sync
/dev/sdb1
5 5 8 33 5 spare
/dev/sdc1
6 6 8 81 6 spare
/dev/sdf1
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