[root@mikamow root]# lsraid -a /dev/md1
[dev   9,   1] /dev/md1         2C96F407.6C89C9A2.771B9191.E3795B84 online
[dev   ?,   ?] (unknown)        00000000.00000000.00000000.00000000 missing
[dev  22,  67] /dev/hdd3        2C96F407.6C89C9A2.771B9191.E3795B84 good
[dev   3,   3] /dev/hda3        2C96F407.6C89C9A2.771B9191.E3795B84 spare



[root@mikamow root]# mdadm --detail /dev/md1
/dev/md1:
        Version : 00.90.00
  Creation Time : Wed May  7 08:53:23 2003
     Raid Level : raid1
     Array Size : 77015488 (73.45 GiB 78.86 GB)
    Device Size : 77015488 (73.45 GiB 78.86 GB)
   Raid Devices : 2
  Total Devices : 2
Preferred Minor : 1
    Persistence : Superblock is persistent

    Update Time : Thu Jul  5 19:14:57 2007
          State : dirty, degraded, recovering
 Active Devices : 1
Working Devices : 2
 Failed Devices : 0
  Spare Devices : 1

 Rebuild Status : 1% complete

           UUID : 2c96f407:6c89c9a2:771b9191:e3795b84
         Events : 0.291

    Number   Major   Minor   RaidDevice State
       0       0        0        0      faulty removed
       1      22       67        1      active sync   /dev/hdd3

       2       3        3        2      spare rebuilding   /dev/hda3