root@backup:~# mdadm --detail /dev/md3
/dev/md3:
        Version : 0.90
  Creation Time : Sun Apr 13 07:05:53 2014
     Raid Level : raid1
     Array Size : 3886010304 (3705.99 GiB 3979.27 GB)
  Used Dev Size : -1
   Raid Devices : 6
  Total Devices : 6
Preferred Minor : 3
    Persistence : Superblock is persistent

  Intent Bitmap : Internal

    Update Time : Sun Apr 13 08:05:59 2014
          State : active
 Active Devices : 6
Working Devices : 6
 Failed Devices : 0
  Spare Devices : 0

           UUID : a8c02df5:23b420d3:a4d2adc2:26fd5302
         Events : 0.1

    Number   Major   Minor   RaidDevice State
       0       8        3        0      active sync   /dev/sda3
       1       8       19        1      active sync   /dev/sdb3
       2       8       35        2      active sync   /dev/sdc3
       3       8       51        3      active sync   /dev/sdd3
       4       8       67        4      active sync   /dev/sde3
       5       8       83        5      active sync   /dev/sdf3
root@backup:~# cat /etc/fstab
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
/dev/md2        /       ext4    errors=remount-ro,relatime      0       1
/dev/md3        /home   ext4    defaults,relatime       1       2
/dev/sda4       swap    swap    defaults        0       0
/dev/sdb4       swap    swap    defaults        0       0
/dev/sdc4       swap    swap    defaults        0       0
/dev/sdd4       swap    swap    defaults        0       0
/dev/sde4       swap    swap    defaults        0       0
/dev/sdf4       swap    swap    defaults        0       0
proc            /proc   proc    defaults                0       0
sysfs           /sys    sysfs   defaults                0       0
devtmpfs        /dev    devtmpfs        rw      0       0
root@backup:~# df -h
Filesystem      Size  Used Avail Use% Mounted on
rootfs           20G  760M   18G   5% /
/dev/root        20G  760M   18G   5% /
devtmpfs        7.8G  4.0K  7.8G   1% /dev
none            4.0K     0  4.0K   0% /sys/fs/cgroup
none            1.6G  540K  1.6G   1% /run
none            5.0M     0  5.0M   0% /run/lock
none            7.8G     0  7.8G   0% /run/shm
none            100M     0  100M   0% /run/user
/dev/md3        3.6T   69M  3.4T   1% /home
root@backup:~#