root@backup:~# mdadm -D /dev/md1
/dev/md1:
        Version : 00.90.01
  Creation Time : Thu Apr  8 12:40:56 2004
     Raid Level : linear
     Array Size : 231511680 (220.79 GiB 237.07 GB)
   Raid Devices : 2
  Total Devices : 2
Preferred Minor : 1
    Persistence : Superblock is persistent

    Update Time : Mon Apr 12 16:02:43 2004
          State : clean, no-errors
 Active Devices : 2
Working Devices : 2
 Failed Devices : 0
  Spare Devices : 0

       Rounding : 64K

    Number   Major   Minor   RaidDevice State
       0       8        2        0      active sync   /dev/sda2
       1       8       17        1      active sync   /dev/sdb1
           UUID : bc4af46b:f629f8ae:f26fd9cb:552c7852
         Events : 0.5