I figured it out. As I was watching the reboot (when I tried 'reconfigure') I saw the very first message on screen was "one or more i/o devices have been retired". Some googling showed that was a result of fmadam marking it as faulty; I had to clear it.
pfexec fmadm faulty -a showed the disk as marked faulty, so I ran pfexec fmadm repaired "013" and the disk immediately appeared, and is now happily a spare in my pool. Thanks you all for your assistance. -- This message posted from opensolaris.org _______________________________________________ opensolaris-discuss mailing list opensolaris-discuss@opensolaris.org