On Thu, 07 Apr 2016 08:44:46 -0400 "Brian J. Murrell" <brian@xxxxxxxxxxxxxxx> wrote: > # cat /proc/mdstat > Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10] > md0 : active raid1 sdd[0] > 1953514496 blocks [2/1] [U_] > > md1 : active raid0 sdc[1] sdb[0] > 1953524736 blocks super 1.2 512k chunks ... > Is my only option here to fail/remove /dev/md1 from the array and re- > add it that way or is there a more graceful recovery possible here? You do not have a write intent bitmap at md0, so re-add will not work. Seems like you should --add it now, then after it rebuilds use --grow to add a bitmap, so that in the future you could use -re-add. As to why the situation occured in the first place, you should ensure that md1 assembles before md0. Perhaps by listing both arrays in /etc/mdadm/mdadm.conf in the order you need (and don't forget to re-generate initrd.img). -- With respect, Roman
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