On Wed, 12 Jan 2011 04:19:30 +0000 John Robinson <john.robinson@xxxxxxxxxxxxxxxx> wrote: > I've just started reshaping a RAID-5 to a RAID-6. I had meant to > increase the number of drives too, so avoiding using the backup file all > the way through. Unfortunately I forgot to specify that, so it's going > rather slowly. I said: > > mdadm /dev/md1 --grow --level=6 --backup-file=/some/where/else > > where md1 had 3 active and 2 spare devices. It's now reshaping itself to > RAID-6 with 4 active and 1 spare. > > What I meant was > > mdadm /dev/md1 --grow --level=6 --raid-disks=5 --backup-file=... > > Can I cancel reshape that's currently running, and using the backup file > that's actually on another (RAID-1) array on three of the same drives, > and running at ~7MB/s, and try again? > Sorry, but no. This isn't supported yet. It would require modification to the kernel to be able to run a reshape in reverse. 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
