On 03/31/2015 05:41 PM, Dave Stevens wrote: > Quoting Brad Campbell <brad@xxxxxxxxxxxxxxx>: > >> md12 has claimed sda2 and md10 has sdb&c. Try this >> >> mdadm --stop /dev/md12 >> mdadm --stop /dev/md10 >> mdadm --assemble --force /dev/md13 /dev/sd[abc]2 > > I owe you a beer, Brad! Now I only have to mount the LVM partition, > retrieve the Xen domains and rejig the management tools so I can do a > meaningful backup and restore but this is the bit I couldn't get my head > around. If you did this with those three disks, you are likely to have random data corruption from the older mirror. If so, stop and re-assemble with just the last good disks. Phil -- 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