How to know which device in centos raid mirror to break ?
Posted on 2012-04-08
May raid status now as follows :
root@svr15 [~]# cat /proc/mdstat
Personalities : [raid1]
md0 : active raid1 sdb1 sda1
200704 blocks [2/2] [UU]
md1 : active raid1 sdb2 sda2
8193024 blocks [2/2] [UU]
md2 : active raid1 sdb3 sda3
479989952 blocks [2/1] [_U]
[>....................] recovery = 0.7% (3739072/479989952) finish=3760.4min speed=2110K/sec
unused devices: <none>
I would like to break mirror for md2 and leave only the device that having my recent/full data.
May i know which device should i set to fail if i want to break mirror for md2 as above requirement ?
Is it sda3 or sdb3 ?
Appreciates any assistant.