Hi, I searched again on this mailing list and i've just found the --update=revert-reshape and it works well ! My RAID 5 is now up and my volume is Ok :) In my case : mdadm --assemble --verbose --force --update=revert-reshape --invalid-backup --backup-file=/whatever /dev/md/3 /dev/sd[bcdefg]6 Now, i will make a full backup of my datas before growing ^_^' Laurent -- 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