root@rescue ~ # cat /proc/mdstat
Personalities : [raid1]
md2 : inactive sdc3[2](S) sdb3[1](S) sda3[0](S)
4376491200 blocks

md1 : active raid1 sdb2[1] sdc2[2]
2104448 blocks [3/2] [_UU]

md0 : active raid1 sdb1[0] sdc1[2] sda1[1]
4200896 blocks [3/3] [UUU]
после

mdadm --stop /dev/md2
mdadm --assemble --scan --force


root@rescue ~ # mdadm -E /dev/sdb3
/dev/sdb3:
Magic : a92b4efc
Version : 00.90.00
UUID : 29fa37f0:01c0ef92:776c2c25:004bd7b2 (local to host rescue)
Creation Time : Wed Mar 10 12:07:20 2010
Raid Level : raid5
Used Dev Size : 1458830400 (1391.25 GiB 1493.84 GB)
Array Size : 2917660800 (2782.50 GiB 2987.68 GB)
Raid Devices : 3
Total Devices : 3
Preferred Minor : 2

Update Time : Sun Jun 19 07:20:46 2011
State : active
Active Devices : 2
Working Devices : 2
Failed Devices : 0
Spare Devices : 0
Checksum : 3d6e7d2a - correct
Events : 4587771

Layout : left-symmetric
Chunk Size : 64K

Number Major Minor RaidDevice State
this 1 8 19 1 active sync /dev/sdb3

0 0 0 0 0 removed
1 1 8 19 1 active sync /dev/sdb3
2 2 8 35 2 active sync /dev/sdc3


root@rescue ~ # mdadm -E /dev/sdc3
/dev/sdc3:
Magic : a92b4efc
Version : 00.90.00
UUID : 29fa37f0:01c0ef92:776c2c25:004bd7b2 (local to host rescue)
Creation Time : Wed Mar 10 12:07:20 2010
Raid Level : raid5
Used Dev Size : 1458830400 (1391.25 GiB 1493.84 GB)
Array Size : 2917660800 (2782.50 GiB 2987.68 GB)
Raid Devices : 3
Total Devices : 3
Preferred Minor : 2

Update Time : Sun Jun 19 07:20:55 2011
State : clean
Active Devices : 1
Working Devices : 1
Failed Devices : 1
Spare Devices : 0
Checksum : 3db47e4c - correct
Events : 4587771

Layout : left-symmetric
Chunk Size : 64K

Number Major Minor RaidDevice State
this 2 8 35 2 active sync /dev/sdc3

0 0 0 0 0 removed
1 1 0 0 1 faulty removed
2 2 8 35 2 active sync /dev/sdc3

kaban_nik,

сейчас

root@rescue ~ # cat /proc/mdstat
Personalities : [raid1] [raid6] [raid5] [raid4]
md2 : inactive sdb3[1] sdc3[2]
2917660800 blocks

md1 : active raid1 sdb2[1] sdc2[2]
2104448 blocks [3/2] [_UU]

md0 : active raid1 sdb1[0] sdc1[2] sda1[1]
4200896 blocks [3/3] [UUU]

unused devices: <none>