我刚刚搬家,涉及拆卸服务器并重新连接。由于这样做,我的MDADM RAID5阵列之一显示为非活动状态:
root@mserver:/tmp# cat /proc/mdstat
Personalities : [raid6] [raid5] [raid4] [linear] [multipath] [raid0] [raid1] [raid10]
md1 : active raid5 sdc1[1] sdh1[2] sdg1[0]
3907023872 blocks level 5, 64k chunk, algorithm 2 [3/3] [UUU]
md0 : inactive sdd1[0](S) sdf1[3](S) sde1[2](S) sdb1[1](S)
3907039744 blocks
unused devices: <none>
在我看来,好像找到了所有磁盘,但是由于某种原因不想使用它们。
那么(S)标签是什么意思,我如何告诉MDADM重新开始使用数组?
[编辑]我只是尝试用以下命令停止并组装数组-v
:
root@mserver:~# mdadm --stop /dev/md0
mdadm: stopped /dev/md0
root@mserver:~# mdadm --assemble --scan -v
mdadm: /dev/sde1 is identified as a member of /dev/md0, slot 2.
mdadm: /dev/sdf1 is identified as a member of /dev/md0, slot 3.
mdadm: /dev/sdd1 is identified as a member of /dev/md0, slot 0.
mdadm: /dev/sdb1 is identified as a member of /dev/md0, slot 1.
mdadm: added /dev/sdd1 to /dev/md0 as 0 (possibly out of date)
mdadm: added /dev/sdb1 to /dev/md0 as 1 (possibly out of date)
mdadm: added /dev/sdf1 to /dev/md0 as 3 (possibly out of date)
mdadm: added /dev/sde1 to /dev/md0 as 2
mdadm: /dev/md0 assembled from 1 drive - not enough to start the array.
..和进入猫/proc/mdstat
看起来没有什么不同。
[Edit2]不确定是否有帮助,但这是检查每个磁盘的结果:
root @ mserver:〜#mdadm-检查/ dev / sdb1
/dev/sdb1:
Magic : a92b4efc
Version : 0.90.00
UUID : 2f331560:fc85feff:5457a8c1:6e047c67 (local to host mserver)
Creation Time : Sun Feb 1 20:53:39 2009
Raid Level : raid5
Used Dev Size : 976759936 (931.51 GiB 1000.20 GB)
Array Size : 2930279808 (2794.53 GiB 3000.61 GB)
Raid Devices : 4
Total Devices : 4
Preferred Minor : 0
Update Time : Sat Apr 20 13:22:27 2013
State : clean
Active Devices : 4
Working Devices : 4
Failed Devices : 0
Spare Devices : 0
Checksum : 6c8f71a3 - correct
Events : 955190
Layout : left-symmetric
Chunk Size : 64K
Number Major Minor RaidDevice State
this 1 8 17 1 active sync /dev/sdb1
0 0 8 113 0 active sync /dev/sdh1
1 1 8 17 1 active sync /dev/sdb1
2 2 8 97 2 active sync /dev/sdg1
3 3 8 33 3 active sync /dev/sdc1
root @ mserver:〜#mdadm-检查/ dev / sdd1
/dev/sdd1:
Magic : a92b4efc
Version : 0.90.00
UUID : 2f331560:fc85feff:5457a8c1:6e047c67 (local to host mserver)
Creation Time : Sun Feb 1 20:53:39 2009
Raid Level : raid5
Used Dev Size : 976759936 (931.51 GiB 1000.20 GB)
Array Size : 2930279808 (2794.53 GiB 3000.61 GB)
Raid Devices : 4
Total Devices : 2
Preferred Minor : 0
Update Time : Sat Apr 20 18:37:23 2013
State : active
Active Devices : 2
Working Devices : 2
Failed Devices : 2
Spare Devices : 0
Checksum : 6c812869 - correct
Events : 955205
Layout : left-symmetric
Chunk Size : 64K
Number Major Minor RaidDevice State
this 0 8 113 0 active sync /dev/sdh1
0 0 8 113 0 active sync /dev/sdh1
1 1 0 0 1 faulty removed
2 2 8 97 2 active sync /dev/sdg1
3 3 0 0 3 faulty removed
root @ mserver:〜#mdadm-检查/ dev / sde1
/dev/sde1:
Magic : a92b4efc
Version : 0.90.00
UUID : 2f331560:fc85feff:5457a8c1:6e047c67 (local to host mserver)
Creation Time : Sun Feb 1 20:53:39 2009
Raid Level : raid5
Used Dev Size : 976759936 (931.51 GiB 1000.20 GB)
Array Size : 2930279808 (2794.53 GiB 3000.61 GB)
Raid Devices : 4
Total Devices : 2
Preferred Minor : 0
Update Time : Sun Apr 21 14:00:43 2013
State : clean
Active Devices : 1
Working Devices : 1
Failed Devices : 2
Spare Devices : 0
Checksum : 6c90cc70 - correct
Events : 955219
Layout : left-symmetric
Chunk Size : 64K
Number Major Minor RaidDevice State
this 2 8 97 2 active sync /dev/sdg1
0 0 0 0 0 removed
1 1 0 0 1 faulty removed
2 2 8 97 2 active sync /dev/sdg1
3 3 0 0 3 faulty removed
root @ mserver:〜#mdadm-检查/ dev / sdf1
/dev/sdf1:
Magic : a92b4efc
Version : 0.90.00
UUID : 2f331560:fc85feff:5457a8c1:6e047c67 (local to host mserver)
Creation Time : Sun Feb 1 20:53:39 2009
Raid Level : raid5
Used Dev Size : 976759936 (931.51 GiB 1000.20 GB)
Array Size : 2930279808 (2794.53 GiB 3000.61 GB)
Raid Devices : 4
Total Devices : 4
Preferred Minor : 0
Update Time : Sat Apr 20 13:22:27 2013
State : clean
Active Devices : 4
Working Devices : 4
Failed Devices : 0
Spare Devices : 0
Checksum : 6c8f71b7 - correct
Events : 955190
Layout : left-symmetric
Chunk Size : 64K
Number Major Minor RaidDevice State
this 3 8 33 3 active sync /dev/sdc1
0 0 8 113 0 active sync /dev/sdh1
1 1 8 17 1 active sync /dev/sdb1
2 2 8 97 2 active sync /dev/sdg1
3 3 8 33 3 active sync /dev/sdc1
我有一些注释建议驱动器的原始组装如下:
md0 : active raid5 sdb1[1] sdc1[3] sdh1[0] sdg1[2]
2930279808 blocks level 5, 64k chunk, algorithm 2 [4/4] [UUUU]
[Edit3]
通过它看起来像下面发生的日志展望(基于Update Time
在--examine
结果):
- sdb和sdf在20号的13:22之后被淘汰了
- sdd在20号的18:37之后被淘汰
- 1日14:00之后一段时间,服务器已关闭
鉴于两个磁盘下降(显然)同时我认为这应该是合理的安全承担阵列就不会说点(?)之后被写入,所以它应该是相对安全的,迫使它复权在正确的顺序?这样做最安全的命令是什么,并且有没有写任何更改的方法吗?
-v
看看发生了什么事情),但所有这些都应该被添加磁盘得到大意如下的答复:mdadm: /dev/sdb1 is busy - skipping
。