Eyal Lebedinsky wrote: > I have (had) a 4 disk RAID5 /dev/sd[abcd]1. [trim] By this evening this will become urgent, so if anyone can reply then please do. To bring it up in degraded mode, can I do a --create and tell it to use sd[abc] and mark sdd as failed? I can then force --run. An --assemble with '--failed /dev/sdd1' was not happy because it could not see sdd (naturally). With the new disk (sda) added, can I safely do mdadm --assemble /dev/md0 /dev/sd[bcd]1 --fail /dev/sda1 and maybe --force or --run to bring it up? TIA -- Eyal Lebedinsky (eyal@xxxxxxxxxxxxxx) <http://samba.org/eyal/> attach .zip as .dat - 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