I have a 3-disk RAID5 with identical drives that won't assemble.
The event counts on two of them are the same (20592) and one is
quite a bit less (20466). I do not expect failing hardware.
The problem occurred while I was copying some large files to
the XFS volume on the device, while doing something else that
ate up all my memory. (It was a long time ago so I that's
about as much detail as I can provide--I assumed the OOM killer
ultimately was to blame, somehow.)
It *sounds* like the two drives with the same event count should
be enough to recover my volume. But forcibly doing that is scary
so I'm writing here for encouragement and guidance.
{1156} root@meat-> mdadm --stop /dev/md0
mdadm: stopped /dev/md0
{1157} root@meat-> mdadm --assemble /dev/md0 /dev/sd[bcd]1
mdadm: /dev/md0 assembled from 2 drives - not enough to start the
array while not clean - consider --force.
{1158} root@meat->
I can provide plenty more information, but thought I'd start by
introducing the problem.
How should I proceed? Thanks.
-Alex
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