[CentOS] Server offline :-( please help to repair software RAID

Thu Apr 28 19:28:18 UTC 2011
Michel van Deventer <michel at van.deventer.cx>

Hi,

what is the output of 'cat /proc/mdstat' ?

A healthy raid should look something like below :
[root at janeway ~]# cat /proc/mdstat 
Personalities : [raid1] 
md2 : active raid1 sdb1[0] sda1[1]
      256896 blocks [2/2] [UU]
      
md0 : active raid1 sdd1[0] sdc1[1]
      1465135936 blocks [2/2] [UU]
      
md3 : active raid1 sdb3[1] sda3[0]
      730218432 blocks [2/2] [UU]

I have 3 RAID1 arrays (over 4 disks)

On Thu, 2011-04-28 at 21:10 +0200, Alexander Farber wrote:
> Additional info (how many RAID arrays do I have??):
> 
> # mdadm -D /dev/md3
> /dev/md3:
>         Version : 00.90
>   Creation Time : Sat Mar 19 22:53:25 2011
>      Raid Level : raid1
>      Array Size : 185151360 (176.57 GiB 189.59 GB)
>   Used Dev Size : 185151360 (176.57 GiB 189.59 GB)
>    Raid Devices : 2
>   Total Devices : 2
> Preferred Minor : 3
>     Persistence : Superblock is persistent
> 
>     Update Time : Thu Apr 28 21:09:12 2011
>           State : clean, resyncing
>  Active Devices : 2
> Working Devices : 2
>  Failed Devices : 0
>   Spare Devices : 0
> 
>  Rebuild Status : 38% complete
> 
>            UUID : 1b3668a3:4b6c5593:3d186b3c:53958f34
>          Events : 0.15
> 
>     Number   Major   Minor   RaidDevice State
>        0       8        6        0      active sync   /dev/sda6
>        1       8       22        1      active sync   /dev/sdb6
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