Disk /dev/sda: 163.9 GB, 163928604672 bytes
255 heads, 63 sectors/track, 19929 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0xc391c255

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1        4255    34178256   fd  Linux raid autodetect
/dev/sda2            4256       19452   122069902+   5  Extended
/dev/sda3           19453       19929     3831502+  82  Linux swap / Solaris
/dev/sda5            4256       19452   122069871   fd  Linux raid autodetect

Disk /dev/sdb: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0xece1f12a

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1   *           1        4255    34178256   fd  Linux raid autodetect
/dev/sdb2            4256       19457   122110065    5  Extended
/dev/sdb5            4256       19457   122110033+  fd  Linux raid autodetect

Disk /dev/sdc: 750.1 GB, 750156374016 bytes
255 heads, 63 sectors/track, 91201 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x00078511

   Device Boot      Start         End      Blocks   Id  System
/dev/sdc1               1        2550    20482843+  83  Linux
/dev/sdc2            2551       91201   712089157+  83  Linux
ubuntu@ubuntu:~$


ubuntu@ubuntu:/mnt$ sudo mdadm --query --detail /dev/md0
/dev/md0:
        Version : 00.90
  Creation Time : Tue Nov 18 14:29:44 2008
     Raid Level : raid1
     Array Size : 34178176 (32.59 GiB 35.00 GB)
  Used Dev Size : 34178176 (32.59 GiB 35.00 GB)
   Raid Devices : 2
  Total Devices : 2
Preferred Minor : 0
    Persistence : Superblock is persistent

    Update Time : Tue Apr 28 14:26:02 2009
          State : clean
 Active Devices : 2
Working Devices : 2
 Failed Devices : 0
  Spare Devices : 0

           UUID : 4daec4db:d9f77b90:f8a7cc8c:c3c88e56
         Events : 0.26

    Number   Major   Minor   RaidDevice State
       0       8        1        0      active sync   /dev/sda1
       1       8       17        1      active sync   /dev/sdb1

     Version : 00.90
  Creation Time : Tue Nov 18 14:32:54 2008
     Raid Level : raid1
     Array Size : 122069760 (116.41 GiB 125.00 GB)
  Used Dev Size : 122069760 (116.41 GiB 125.00 GB)
   Raid Devices : 2
  Total Devices : 2
Preferred Minor : 1
    Persistence : Superblock is persistent

    Update Time : Tue Apr 28 14:18:49 2009
          State : clean
 Active Devices : 2
Working Devices : 2
 Failed Devices : 0
  Spare Devices : 0

           UUID : 2d3a9ae4:b8874631:a638261d:5ae04df0
         Events : 0.32

    Number   Major   Minor   RaidDevice State
       0       8        5        0      active sync   /dev/sda5
       1       8       21        1      active sync   /dev/sdb5


fstab:

# /etc/fstab: static file system information.
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
proc            /proc           proc    defaults        0       0
# /dev/md0
UUID=12514c34-7147-4f49-8a90-9a56a71f7f6d /               ext3    relatime,errors=remount-ro 0       1
# /dev/sda3
UUID=bb529527-0cda-464b-8a56-eee3d9bc136d none            swap    sw              0       0
/dev/scd0       /media/cdrom0   udf,iso9660 user,noauto,exec,utf8 0       0
/dev/md1     /mnt/varmistus     ext3 defaults 0 0
/dev/sdc2    /mnt/varasto    ext3 defaults 0 0
/dev/sdc1    /mnt/testi    ext3 defaults 0 0

ubuntu@ubuntu:/mnt$ sudo mdadm --examine --scan
ARRAY /dev/md0 level=raid1 num-devices=2 UUID=4daec4db:d9f77b90:f8a7cc8c:c3c88e56
ARRAY /dev/md1 level=raid1 num-devices=2 UUID=2d3a9ae4:b8874631:a638261d:5ae04df0
ubuntu@ubuntu:/mnt$