headless ~ # mdadm -D /dev/md2
/dev/md2:
        Version : 00.90.03
  Creation Time : Mon May 29 13:03:05 2006
     Raid Level : raid0
     Array Size : 624992256 (596.04 GiB 639.99 GB)
   Raid Devices : 4
  Total Devices : 4
Preferred Minor : 2
    Persistence : Superblock is persistent

    Update Time : Mon May 29 13:03:05 2006
          State : clean
 Active Devices : 4
Working Devices : 4
 Failed Devices : 0
  Spare Devices : 0

     Chunk Size : 64K

           UUID : 1efa51f6:607a0917:59f4944f:e6864c36
         Events : 0.1

    Number   Major   Minor   RaidDevice State
       0       8        1        0      active sync   /dev/sda1
       1       8       17        1      active sync   /dev/sdb1
       2       8       33        2      active sync   /dev/sdc1
       3       8       49        3      active sync   /dev/sdd