root@rescue:/etc/grub.d# parted /dev/sda
GNU Parted 2.3
Using /dev/sda
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) p                                                                
Model: ATA HGST HUS724020AL (scsi)
Disk /dev/sda: 2000GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt

Number  Start   End     Size    File system     Name     Flags
 1      20.5kB  1049kB  1029kB                  primary  bios_grub
 2      2097kB  1999GB  1999GB  ext4            primary  raid
 3      1999GB  2000GB  1572MB  linux-swap(v1)  primary

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# cat /proc/mdstat 
Personalities : [linear] [raid0] [raid1] [raid10] [raid6] [raid5] [raid4] [multipath] [faulty] 
md2 : active raid5 sdb2[1] sda2[0]
      1951973888 blocks level 5, 512k chunk, algorithm 2 [2/2] [UU]

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# cat /etc/fstab

#/dev/md2 raid5
UUID="e0368b29-e3b2-4998-97e0-7f3b6431e71f" / 	ext4 	errors=remount-ro,relatime      0       1
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# mdadm --detail /dev/md2
/dev/md2:
        Version : 0.90
  Creation Time : Sat Jun 27 18:15:49 2015
     Raid Level : raid5
     Array Size : 1951973888 (1861.55 GiB 1998.82 GB)
  Used Dev Size : 1951973888 (1861.55 GiB 1998.82 GB)
   Raid Devices : 2
  Total Devices : 2
Preferred Minor : 2
    Persistence : Superblock is persistent

    Update Time : Sun Jun 28 14:20:47 2015
          State : active 
 Active Devices : 2
Working Devices : 2
 Failed Devices : 0
  Spare Devices : 0

         Layout : left-symmetric
     Chunk Size : 512K

           UUID : 1329e75e:eece5302:a4d2adc2:26fd5302 (local to host rescue.ovh.net)
         Events : 0.52

    Number   Major   Minor   RaidDevice State
       0       8        2        0      active sync   /dev/sda2
       1       8       18        1      active sync   /dev/sdb2
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