software raid

[vu pham]

Sorry for the typo, it is raid 0 not raid 5, but the same problem still 
hold.


vu pham wrote:
> My RHEL5 server has the root partition mounted on  a software raid 5 of 
> 3 disks sda, sdb and sdc. I remove one of the disks and mdadm still 
> reports everything is ok, all disks are active and sync.
> 
> The server hardware log does show the disk is removed. ( I checked this 
> just in case I took the drive from another server ).
> 
> Below is the output of mdadm.
> 
> Thanks for your advice.
> 
> Vu
> 
> 
> [root at wks-178 ~]# mount
> /dev/md2 on / type ext3 (rw)
> proc on /proc type proc (rw)
> sysfs on /sys type sysfs (rw)
> devpts on /dev/pts type devpts (rw,gid=5,mode=620)
> /dev/md0 on /boot type ext3 (rw)
> tmpfs on /dev/shm type tmpfs (rw)
> none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)
> sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw)
> 
> [root at wks-178 ~]# mdadm --detail /dev/md2
> /dev/md2:
>         Version : 00.90.03
>   Creation Time : Thu Aug  7 10:50:37 2008
>      Raid Level : raid0
>      Array Size : 421585152 (402.05 GiB 431.70 GB)
>    Raid Devices : 3
>   Total Devices : 3
> Preferred Minor : 2
>     Persistence : Superblock is persistent
> 
>     Update Time : Thu Aug  7 10:50:37 2008
>           State : clean
>  Active Devices : 3
> Working Devices : 3
>  Failed Devices : 0
>   Spare Devices : 0
> 
>      Chunk Size : 256K
> 
>            UUID : cf7cc365:fbacd375:3a623d90:e9c8d292
>          Events : 0.1
> 
>     Number   Major   Minor   RaidDevice State
>        0       8        3        0      active sync   /dev/sda3
>        1       8       19        1      active sync   /dev/sdb3
>        2       8       35        2      active sync   /dev/sdc3
> [root at wks-178 ~]#
> 
> 
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