RAID-problem

tlycken@hoth ~ $ sudo fdisk -l
Disk /dev/sdb: 200.0 GB, 200049647616 bytes
255 heads, 63 sectors/track, 24321 cylinders, total 390721968 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0007240c

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1   *          63      208844      104391   83  Linux
/dev/sdb2          208845   172232864    86012010   fd  Linux raid autodetect
/dev/sdb3       172232865   336079799    81923467+  fd  Linux raid autodetect
/dev/sdb4       336079800   390716864    27318532+   5  Extended
/dev/sdb5       336079863   377045549    20482843+  fd  Linux raid autodetect
/dev/sdb6       377045613   385431479     4192933+  82  Linux swap / Solaris

tlycken@hoth ~ $ sudo mdadm -E /dev/sdb
/dev/sdb:
   MBR Magic : aa55
Partition[0] :       208782 sectors at           63 (type 83)
Partition[1] :    172024020 sectors at       208845 (type fd)
Partition[2] :    163846935 sectors at    172232865 (type fd)
Partition[3] :     54637065 sectors at    336079800 (type 05)

tlycken@hoth ~ $ sudo mdadm -E /dev/sdb1
mdadm: No md superblock detected on /dev/sdb1.
tlycken@hoth ~ $ sudo mdadm -E /dev/sdb2
/dev/sdb2:
          Magic : a92b4efc
        Version : 0.90.00
           UUID : 866221ac:fd8d56af:aceaa1c2:25d2b442
  Creation Time : Fri Feb 11 00:45:44 2005
     Raid Level : raid1
  Used Dev Size : 86011904 (82.03 GiB 88.08 GB)
     Array Size : 86011904 (82.03 GiB 88.08 GB)
   Raid Devices : 2
  Total Devices : 1
Preferred Minor : 2

    Update Time : Mon Feb 24 15:57:13 2014
          State : clean
 Active Devices : 1
Working Devices : 1
 Failed Devices : 1
  Spare Devices : 0
       Checksum : 9a36b840 - correct
         Events : 1273121


      Number   Major   Minor   RaidDevice State
this     0       8       18        0      active sync   /dev/sdb2

   0     0       8       18        0      active sync   /dev/sdb2
   1     1       0        0        1      faulty removed
tlycken@hoth ~ $ sudo mdadm -E /dev/sdb3
/dev/sdb3:
          Magic : a92b4efc
        Version : 0.90.00
           UUID : cabf24a5:5205fe9a:e5a94833:3cbbc5ea
  Creation Time : Fri Feb 11 00:44:13 2005
     Raid Level : raid1
  Used Dev Size : 81923392 (78.13 GiB 83.89 GB)
     Array Size : 81923392 (78.13 GiB 83.89 GB)
   Raid Devices : 2
  Total Devices : 2
Preferred Minor : 1

    Update Time : Fri Jan 31 08:13:33 2014
          State : clean
 Active Devices : 2
Working Devices : 2
 Failed Devices : 0
  Spare Devices : 0
       Checksum : 85bb034d - correct
         Events : 29760271


      Number   Major   Minor   RaidDevice State
this     0       8        3        0      active sync

   0     0       8        3        0      active sync
   1     1       8       19        1      active sync   /dev/sdb3
tlycken@hoth ~ $ sudo mdadm -E /dev/sdb4
/dev/sdb4:
   MBR Magic : aa55
Partition[0] :     40965687 sectors at           63 (type fd)
Partition[1] :      8385930 sectors at     40965750 (type 05)
tlycken@hoth ~ $ sudo mdadm -E /dev/sdb5
/dev/sdb5:
          Magic : a92b4efc
        Version : 0.90.00
           UUID : b9a1b756:fd32fb01:2852af55:d603fcfb
  Creation Time : Fri Feb 11 00:44:00 2005
     Raid Level : raid1
  Used Dev Size : 20482752 (19.53 GiB 20.97 GB)
     Array Size : 20482752 (19.53 GiB 20.97 GB)
   Raid Devices : 2
  Total Devices : 2
Preferred Minor : 0

    Update Time : Fri Jan 31 08:15:17 2014
          State : clean
 Active Devices : 2
Working Devices : 2
 Failed Devices : 0
  Spare Devices : 0
       Checksum : fd94f080 - correct
         Events : 75971603


      Number   Major   Minor   RaidDevice State
this     0       8        5        0      active sync   /dev/sda5

   0     0       8        5        0      active sync   /dev/sda5
   1     1       8       21        1      active sync   /dev/sdb5
tlycken@hoth ~ $ sudo mdadm -E /dev/sdb6
mdadm: No md superblock detected on /dev/sdb6.