[CentOS] Growing RAID5 on CentOS 4.6

Stephen Harris lists at spuddy.org
Fri Aug 22 17:58:17 UTC 2008


On Fri, Aug 22, 2008 at 08:41:25PM +0300, Jussi Hirvi wrote:
> How about simply
>     % mdadm --grow /dev/md3

% mdadm --grow  /dev/md3
mdadm: no changes to --grow

> What do you get with
>     % mdadm --detail /dev/md3

/dev/md3:
        Version : 00.90.01
  Creation Time : Wed Aug 20 08:44:30 2008
     Raid Level : raid5
     Array Size : 2930279808 (2794.53 GiB 3000.61 GB)
    Device Size : 976759936 (931.51 GiB 1000.20 GB)
   Raid Devices : 4
  Total Devices : 5
Preferred Minor : 3
    Persistence : Superblock is persistent

    Update Time : Fri Aug 22 13:56:47 2008
          State : clean
 Active Devices : 4
Working Devices : 5
 Failed Devices : 0
  Spare Devices : 1

         Layout : left-symmetric
     Chunk Size : 64K

           UUID : 8263db8a:f99c070f:349a59c2:2129ca73
         Events : 0.80605

    Number   Major   Minor   RaidDevice State
       0       8        1        0      active sync   /dev/sda1
       1       8       18        1      active sync   /dev/sdb2
       2       8       35        2      active sync   /dev/sdc3
       3       8       52        3      active sync   /dev/sdd4

       4       8       65        -      spare   /dev/sde1

-- 

rgds
Stephen


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