mdadm --detail /dev/md0
/dev/md0:
        Version : 00.90.00
  Creation Time : Mon Feb 18 19:04:01 2008
     Raid Level : raid1
     Array Size : 78150656 (74.53 GiB 80.03 GB)
    Device Size : 78150656 (74.53 GiB 80.03 GB)
   Raid Devices : 2
  Total Devices : 2
Preferred Minor : 0
    Persistence : Superblock is persistent

    Update Time : Mon Feb 18 19:04:01 2008
          State : active
 Active Devices : 2
Working Devices : 2
 Failed Devices : 0
  Spare Devices : 0

           UUID : a0a4f566:f64d54eb:f0beca8f:bd3aa4fd
         Events : 0.2

    Number   Major   Minor   RaidDevice State
       0      33        0        0      active sync   /dev/hde
       1      34        0        1      active sync   /dev/hdg




cat /proc/mdstat
Personalities : [raid1]
read_ahead 1024 sectors
md0 : active raid1 ide/host2/bus1/target0/lun0/disc[1] ide/host2/bus0/target0/lun0/disc[0]
      78150656 blocks [2/2] [UU]

unused devices: <none>