# mdadm --detail /dev/md0 
/dev/md0:
        Version : 1.2
  Creation Time : Tue May 17 16:19:24 2011
     Raid Level : raid6
     Array Size : 11744256 (11.20 GiB 12.03 GB)
  Used Dev Size : 1957376 (1911.82 MiB 2004.35 MB)
   Raid Devices : 8
  Total Devices : 8
    Persistence : Superblock is persistent

    Update Time : Fri May 20 17:45:34 2011
          State : clean
 Active Devices : 8
Working Devices : 8
 Failed Devices : 0
  Spare Devices : 0

         Layout : left-symmetric
     Chunk Size : 512K

           Name : MicroDirt:0  (local to host MicroDirt)
           UUID : c15dfb9c:8b94f6ae:8c4c7eea:1ac90e9a
         Events : 285

    Number   Major   Minor   RaidDevice State
       0       8       17        0      active sync   /dev/sdb1
       1       8       33        1      active sync   /dev/sdc1
       2       8       49        2      active sync   /dev/sdd1
       3       8       65        3      active sync   /dev/sde1
       7       8      129        4      active sync   /dev/sdi1
       6       8      113        5      active sync   /dev/sdh1
       5       8       97        6      active sync   /dev/sdg1
       4       8       81        7      active sync   /dev/sdf1



# cat /proc/mdstat 
Personalities : [raid6] [raid5] [raid4] 
md0 : active raid6 sdb1[0] sdf1[4] sdg1[5] sdh1[6] sdi1[7] sde1[3] sdd1[2] sdc1[1]
      11744256 blocks super 1.2 level 6, 512k chunk, algorithm 2 [8/8] [UUUUUUUU]
      
unused devices: <none>
MicroDirt:/home/waxhead#