Comment 5 for bug 1617071

root@bootstrap:/var/log# cat /proc/mdstat
Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10]
md126 : active (auto-read-only) raid1 sda[1] sdb[0]
      74235904 blocks super external:/md127/0 [2/2] [UU]

md127 : inactive sda[1](S) sdb[0](S)
      6306 blocks super external:imsm

unused devices: <none>
root@bootstrap:/var/log# mdadm -D md126
mdadm: cannot open md126: No such file or directory
root@bootstrap:/var/log# mdadm -D /dev/md126
/dev/md126:
      Container : /dev/md/imsm0, member 0
     Raid Level : raid1
     Array Size : 74235904 (70.80 GiB 76.02 GB)
  Used Dev Size : 74236036 (70.80 GiB 76.02 GB)
   Raid Devices : 2
  Total Devices : 2

          State : clean
 Active Devices : 2
Working Devices : 2
 Failed Devices : 0
  Spare Devices : 0

           UUID : 49e8c0a5:189a7490:de585028:43c52dd9
    Number Major Minor RaidDevice State
       1 8 0 0 active sync /dev/sda
       0 8 16 1 active sync /dev/sdb
root@bootstrap:/var/log# mdadm -D /dev/md127
/dev/md127:
        Version : imsm
     Raid Level : container
  Total Devices : 2

Working Devices : 2

           UUID : 60ac932c:3f119e5c:bf748c30:82c0548b
  Member Arrays : /dev/md/Volume0_0

    Number Major Minor RaidDevice

       0 8 16 - /dev/sdb
       1 8 0 - /dev/sda