/dev/sda1:
          Magic : a92b4efc
        Version : 0.90.00
           UUID : 762baeb4:036618c9:eea339da:0d4b6b5e
  Creation Time : Mon Aug 22 17:00:50 2011
     Raid Level : raid1
  Used Dev Size : 20980736 (20.01 GiB 21.48 GB)
     Array Size : 20980736 (20.01 GiB 21.48 GB)
   Raid Devices : 2
  Total Devices : 2
Preferred Minor : 0

    Update Time : Wed Sep 12 12:00:07 2012
          State : clean
 Active Devices : 2
Working Devices : 2
 Failed Devices : 0
  Spare Devices : 0
       Checksum : be8eaf0b - correct
         Events : 310


      Number   Major   Minor   RaidDevice State
this     0       8        1        0      active sync   /dev/sda1

   0     0       8        1        0      active sync   /dev/sda1
   1     1       8       17        1      active sync   /dev/sdb1