Re: [ALUG] Reassembling RAID array

On 20/12/12 12:48, Mark Rogers wrote:

I had a RAID5 array set up as /dev/md1 using 4 external USB3 drives.

Following a reboot (I assume, although to be honest I'm not sure what caused it) the array hasn't come back up correctly: $ cat /proc/mdstat Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10] md1 : active raid5 super 1.2 level 5, 512k chunk, algorithm 2 [4/0] [____]

md0 : active raid5 sda1[0] sdb1[1] sdd1[3] sdc1[2]
      5860535808 blocks level 5, 64k chunk, algorithm 2 [4/4] [UUUU]

unused devices: <none>

Note: /dev/md0 is a separate array and is working fine; md1 should comprise sd[fghi]1

something like

sudo mdadm --assemble /dev/md1 /dev/sdf1 /dev/sdg1 /dev/sdh1 /dev/sdi1

perhaps?

Does this thread help?

http://ubuntuforums.org/showthread.php?t=923253

Steve