Mine

[root@mythbackend showcenter]# /sbin/mdadm -D /dev/md0
/dev/md0:
        Version : 00.90.03
  Creation Time : Fri Apr 13 23:20:37 2007
     Raid Level : raid5
     Array Size : 976767872 (931.52 GiB 1000.21 GB)
    Device Size : 488383936 (465.76 GiB 500.11 GB)
   Raid Devices : 3
  Total Devices : 3
Preferred Minor : 0
    Persistence : Superblock is persistent

    Update Time : Thu Apr 10 23:24:41 2008
          State : clean, degraded
 Active Devices : 1
Working Devices : 2
 Failed Devices : 1
  Spare Devices : 1

         Layout : left-symmetric
     Chunk Size : 64K

           UUID : 33db5f55:4c574625:c26a81c1:bd7dca04
         Events : 0.4679112

    Number   Major   Minor   RaidDevice State
       0       0        0        0      removed
       1       0        0        1      removed
       2       8       33        2      active sync   /dev/sdc1

       3       8        1        -      spare   /dev/sda1
       4       8       17        -      faulty spare   /dev/sdb1
[root@mythbackend showcenter]#