Fixing your Linux software RAID array
On couple occasions I have had experience of RAID array going bezerk
after a machine hosting that RAID array was rebooted or was shutdown
uncleanly. As a result during boot software RAID would fail to
initialize. Note I am not talking about file system being unclean but
command raidstart /dev/md0 failing. As a result you have nothing since
the RAID device hasn't been created. I was able to find an answer at
the following URL
http://www.spinics.net/lists/raid/msg02546.html (I just trashed my RAID5 array - recovery possible?)
You will have to download mdadm utility that is available at
Even though the above URL refers to RAID5 array I was able to use mdadm to fix a RAID0 array as well.
mdadm -A /dev/md1 --force /dev/sd[egik]1
Note however that you should use it at your own risk. This is has
worked for me but there are no guarantees it will work for you as well.
You may trash your RAID array completely. You have been warned.