mdadm marked wrong device as faulty? Help needed urgently. [SOLVED]

Gullible Jones · 2013-01-31 15:51:29

So let's say we have a RAID 6 array:

md0: active raid6 sda1[X] sdb1[X] sdc1[X] sdd1[X] sde1[X]...
... [UU_UU...

sdc1 has failed so I mark it as faulty in preparation to remove it.

mdadm --manage /dev/md0 --fail /dev/sdc1

And what I get is this:

md0: active raid6 sda1[X] sdb1[X] sdc1[X](F) sdd1[X] sde1[X]...
...[UU_U_...

Now I have two drives not working, one of which is probably okay.

What on Earth just happened, where did I go wrong, and how can I undo it?

Edit: issue was that the real faulty drive had already been removed.

Last edited by Gullible Jones (2013-01-31 16:05:30)

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