I just finished the transfer and it went great. Thanks for all the advice. I went with the assemble-by-uuid approach in /etc/mdadm.conf which did very well. Especially since drive letters danced around quite a bit between reboots. One of the disks died during transit, and the redundancy part of RAID earned its keep. The only thing I didn't figure out was SATA hotplug. The SATA controller (an Areca 1230 in JBOD mode) happily noticed when a drive was hotplugged into a port. But Linux didn't seem to notice. I was using cfdisk to probe. Is there a particular command needed to convince Linux to look around and see if there are any new SATA devices? Jeff - 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