MDADM RAID5 array showing as CLEAN FAULTY

Posted by Dean Reilly on Server Fault See other posts from Server Fault or by Dean Reilly
Published on 2012-10-02T09:10:03Z Indexed on 2012/10/02 9:39 UTC
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A drive dropped out of my raid 5 array yesterday. It looks like the reason was due to a bad controller so I switched it out and attempted to re-add the drive but mdadm claimed it couldn't do it. So I zerod the superblock and just added the drive normally and left it to resync.

When I came to check on the array this morning I was unable to mount it at all and it's now showing as CLEAN FAULTY with two drives missing. The two missing drives are listed as spare and faulty spare.

Is there anything I can do in this situation or is the array gone?

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