On Tue, 17 Aug 2010 16:00:01 -0400 William Heaton <acroporas@xxxxxxxxx> wrote: > *I am not on the mailing list. Please include acroporas@xxxxxxxxx in > any replies.* > > I had a 4-disk RAID5. I added a 5th disk and at the same time converted > it to RAID6. > > Things started out looking good, but after about a day, the reshape > appeared to have stalled. After waiting more than 24 hours without > seeing any progress I rebooted the computer. Immediately before the > rebooting the array was running and all data was accessible. But after > reboot, the array would not start. Can anyone help me get the array > restarted? Thanks > > ~$ uname -a > Linux pholidochromis 2.6.32-24-generic #39-Ubuntu SMP Wed Jul 28 > 05:14:15 UTC 2010 x86_64 GNU/Linux > > ~$ mdadm --version > mdadm - v3.1.2 - 10th March 2010 > > > ~$ sudo mdadm --assemble /dev/md0 /dev/sd[bcdel]1 -vv -f --backup-file > /media/Backup/rb > mdadm: looking for devices for /dev/md0 > mdadm: /dev/sdb1 is identified as a member of /dev/md0, slot 4. > mdadm: /dev/sdc1 is identified as a member of /dev/md0, slot 2. > mdadm: /dev/sdd1 is identified as a member of /dev/md0, slot 0. > mdadm: /dev/sde1 is identified as a member of /dev/md0, slot 1. > mdadm: /dev/sdl1 is identified as a member of /dev/md0, slot 3. > mdadm:/dev/md0 has an active reshape - checking if critical section > needs to be restored > mdadm: too-old timestamp on backup-metadata on /media/Backup/rb > mdadm: Failed to find backup of critical section > mdadm: Failed to restore critical section for reshape, sorry. > cd /tmp git clone git://neil.brown.name/mdadm make sudo ./mdadm --assemble /dev/md0 /dev/sd[bcdel]1 -vv -f --backup-file /media/Backup/rb If that still doesn't work. sudo sh export MDADM_GROW_ALLOW_OLD=1 ./mdadm --assemble /dev/md0 /dev/sd[bcdel]1 -vv -f --backup-file /media/Backup/rb NeilBrown -- 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
