On Wed, Apr 14, 2010 at 6:04 PM, Neil Brown <neilb@xxxxxxx> wrote: > What is happening here is that the spare (sdh) is getting the Q blocks > written to it. When this completes you will have full 2-disk redundancy but > the layout will not be optimal and the array wont be any bigger. > To fix this you would: > > mdadm --grow --backup-file=/root/backup.md4 --raid-devices=6 \ > --layout=normalise /dev/md4 > Is there some way of telling if the layout is proper, or is that what 'level 6' indicates? Also is it safe to run something like... mdadm --grow --back-file=/some/never/used/file --layout=normalize /dev/mdX on any raid 5/6 device that isn't undergoing an active reshape? (would it be a null-op if not required) -- 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
