我的RAID1降级了,我需要替换/ dev / sdb.但是,我可以将/ dev / sdb5(在/ dev / md1中)标记为失败并将其删除,但我不能对/ dev / sdb1(安装在/上的/ dev / md0)执行相同的操作：
root@kes:~# mdadm /dev/md0 --fail /dev/sdb1
mdadm: set /dev/sdb1 faulty in /dev/md0
root@kes:~# mdadm --detail /dev/md0
/dev/md0:
Version : 00.90
Creation Time : Wed Apr 7 03:00:39 2010
Raid Level : raid1
Array Size : 975185536 (930.01 GiB 998.59 GB)
Used Dev Size : 975185536 (930.01 GiB 998.59 GB)
Raid Devices : 2
Total Devices : 2
Preferred Minor : 0
Persistence : Superblock is persistent
Update Time : Mon Feb 13 12:27:41 2012
State : active,degraded
Active Devices : 1
Working Devices : 1
Failed Devices : 1
Spare Devices : 0
UUID : cdc01e79:774eba08:ade2cb46:d0df0469 (local to host kes)
Events : 0.67569047
Number Major Minor RaidDevice State
0 8 1 0 active sync /dev/sda1
2 8 17 1 faulty spare rebuilding /dev/sdb1
root@kes:~# mdadm /dev/md0 --remove /dev/sdb1
mdadm: hot remove Failed for /dev/sdb1: Device or resource busy
那么我做错了什么？
解决方法
尝试：
echo "idle" > /sys/block/md0/md/sync_action mdadm /dev/md0 --remove /dev/sdb1
为我工作.
