Hi, I'm in a bit of a fix here - I was expanding an mdadm raid5 array from 5 to 6 disks. During the expand, I had to shut down the machine to do some fiddling about with its guts, retiring an old 4x200GB raid5 actually. When I booted the machine back up again the array did not recover and carry on reshaping. I tried various different tricks to see if I could force-mount it, and I fear I may have wiped the array for good here... The position I'm in now: md5 is (was?) a 6x600GB raid5, being expanded from 5 disks to 6. The UUIDs on 5 of the disks match up The UUID on the other disk is different (uhoh) The disk with a different UUID has this info in --examine: Reshape pos'n : 443168960 (422.64 GiB 453.81 GB) Delta Devices : 1 (5->6) so mdadm has been recording where the reshape got to... The other disks in the array do *not* have this reshape info in them...I think this is probably because I force-assembled somewhere down the line and screwed things up a bit. I can mount the 5-disk broken array and see about 1/4 of my data - consistent with how far the reshape got before I shut down the machine. What I would like to do is to assemble the array and continue reshaping where it left off - at that 422.64GiB point. Where do I start? Can I even do this? Is my data gone for good? :-( Thanks Tom C -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
