Okay, so I swapped six drives from one machine to another. I was very, very careful to ensure that the drives were plugged in in the corresponding order that they'd been plugged in in the first machine. Now, fdisk shows no partitions in two of my three mirrors. This fills me with a distinct lack of warmth and fuzziness. /etc/mdadm/mdadm.conf addresses the two (MIA) mirrors with /dev/sd[abef]1 designators, which can, of course, get jumbled in a transition. Any tips on how to go forward would be gratefully appreciated -- I *really* don't want to have to go to backups. Thanks! -Ken -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. -- 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