for disk in a b c d g h i j k l m n do disklist="${disklist} /dev/sd${disk}1" done mdadm --create --verbose /dev/md2 --level=5 --raid=devices=12 ${disklist} But its telling me : mdadm: invalid number of raid devices: devices=12 I can't find any definition of a limit anywhere. Thank you, Tuc -- 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