Disk 1

kavrescue ~ # mdadm --examine /dev/sda
mdadm: No md superblock detected on /dev/sda.
kavrescue ~ # mdadm --examine /dev/sda1
/dev/sda1:
          Magic : a92b4efc
        Version : 0.90.00
           UUID : 627b5fe5:4e9c7c6f:120f8e7f:33047a28
  Creation Time : Thu Dec 24 13:04:33 2009
     Raid Level : raid1
  Used Dev Size : 1959808 (1914.20 MiB 2006.84 MB)
     Array Size : 1959808 (1914.20 MiB 2006.84 MB)
   Raid Devices : 4
  Total Devices : 4
Preferred Minor : 0

    Update Time : Sun Jan 19 20:56:13 2014
          State : clean
 Active Devices : 4
Working Devices : 4
 Failed Devices : 0
  Spare Devices : 0
       Checksum : 3d84c33a - correct
         Events : 462


      Number   Major   Minor   RaidDevice State
this     2       8       49        2      active sync   /dev/sdd1

   0     0       8        1        0      active sync   /dev/sda1
   1     1       8       17        1      active sync   /dev/sdb1
   2     2       8       49        2      active sync   /dev/sdd1
   3     3       8       33        3      active sync   /dev/sdc1
kavrescue ~ # mdadm --examine /dev/sda2
/dev/sda2:
          Magic : a92b4efc
        Version : 0.90.00
           UUID : 1626de09:2b032216:54911169:0450dbd6
  Creation Time : Thu Dec 24 13:04:37 2009
     Raid Level : raid1
  Used Dev Size : 256960 (250.98 MiB 263.13 MB)
     Array Size : 256960 (250.98 MiB 263.13 MB)
   Raid Devices : 4
  Total Devices : 4
Preferred Minor : 1

    Update Time : Sun Jan 19 20:06:46 2014
          State : clean
 Active Devices : 4
Working Devices : 4
 Failed Devices : 0
  Spare Devices : 0
       Checksum : e14ac109 - correct
         Events : 42


      Number   Major   Minor   RaidDevice State
this     3       8       50        3      active sync

   0     0       8        2        0      active sync   /dev/sda2
   1     1       8       18        1      active sync
   2     2       8       34        2      active sync
   3     3       8       50        3      active sync
kavrescue ~ # mdadm --examine /dev/sda3
/dev/sda3:
          Magic : a92b4efc
        Version : 0.90.00
           UUID : 38c7ed4f:6cee1cba:27459d71:3d5a0964
  Creation Time : Fri Jan 17 11:38:10 2014
     Raid Level : raid0
   Raid Devices : 4
  Total Devices : 4
Preferred Minor : 2

    Update Time : Fri Jan 17 11:38:10 2014
          State : active
 Active Devices : 4
Working Devices : 4
 Failed Devices : 0
  Spare Devices : 0
       Checksum : 59342d7e - correct
         Events : 1

     Chunk Size : 64K

      Number   Major   Minor   RaidDevice State
this     0       8       51        0      active sync

   0     0       8       51        0      active sync
   1     1       8       35        1      active sync
   2     2       8       19        2      active sync
   3     3       8        3        3      active sync   /dev/sda3