/dev/sda3 -> faulty device.
root@makeitweb ~ # cat /proc/mdstat
Personalities : [raid1]
md3 : active raid1 sda4[0] sdb4[1]
1843414335 blocks super 1.2 [2/2] [UU]
md2 : active raid1 sda3[0](F) sdb3[1]
1073740664 blocks super 1.2 [2/1] [_U]
md1 : active raid1 sda2[0] sdb2[1]
524276 blocks super 1.2 [2/2] [UU]
md0 : active raid1 sda1[0] sdb1[1]
12581816 blocks super 1.2 [2/2] [UU]
unused devices: <none> |
root@makeitweb ~ # cat /proc/mdstat
Personalities : [raid1]
md3 : active raid1 sda4[0] sdb4[1]
1843414335 blocks super 1.2 [2/2] [UU]
md2 : active raid1 sda3[0](F) sdb3[1]
1073740664 blocks super 1.2 [2/1] [_U]
md1 : active raid1 sda2[0] sdb2[1]
524276 blocks super 1.2 [2/2] [UU]
md0 : active raid1 sda1[0] sdb1[1]
12581816 blocks super 1.2 [2/2] [UU]
unused devices: <none>
mdadm --manage /dev/md2 --fail /dev/sda3 |
mdadm --manage /dev/md2 --fail /dev/sda3
mdadm --manage /dev/md2 --remove /dev/sda3 |
mdadm --manage /dev/md2 --remove /dev/sda3
mdadm --manage /dev/md2 --add /dev/sda3 |
mdadm --manage /dev/md2 --add /dev/sda3
root@makeitweb ~ # cat /proc/mdstat
Personalities : [raid1]
md3 : active raid1 sda4[0] sdb4[1]
1843414335 blocks super 1.2 [2/2] [UU]
md2 : active raid1 sda3[0] sdb3[1]
1073740664 blocks super 1.2 [2/1] [_U]
[>....................] recovery = 0.1% (1565952/1073740664) finish=319.5min speed=55926K/sec
md1 : active raid1 sda2[0] sdb2[1]
524276 blocks super 1.2 [2/2] [UU]
md0 : active raid1 sda1[0] sdb1[1]
12581816 blocks super 1.2 [2/2] [UU]
unused devices: <none> |
root@makeitweb ~ # cat /proc/mdstat
Personalities : [raid1]
md3 : active raid1 sda4[0] sdb4[1]
1843414335 blocks super 1.2 [2/2] [UU]
md2 : active raid1 sda3[0] sdb3[1]
1073740664 blocks super 1.2 [2/1] [_U]
[>....................] recovery = 0.1% (1565952/1073740664) finish=319.5min speed=55926K/sec
md1 : active raid1 sda2[0] sdb2[1]
524276 blocks super 1.2 [2/2] [UU]
md0 : active raid1 sda1[0] sdb1[1]
12581816 blocks super 1.2 [2/2] [UU]
unused devices: <none>
