2017-04-28 11:52 GMT+02:00, Andreas Klauer <Andreas.Klauer@xxxxxxxxxxxxxx>: > On Fri, Apr 28, 2017 at 09:11:45AM +0200, Patrik Dahlström wrote: >> Is it missing a 'skip=<offset/1M>' here? > > In this example the offset is provided by the loop devices. > Yes, I saw that after I sent my reply. Can't I reduce my risks by doing it the other way around? Restore the 5 disk raid and then restart the reshape? dd if=/dev/md6 bs=1M count=X/1M of=/dev/md5 mdadm --grow --raid-devices=6 /dev/md5 --add /dev/sdf --backup-file=/root/grow_md5.bak It's a bit more disk I/O, but less risk -- 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