Hi Joe, sorry for the delay. I had trouble posting to the forum last week with timeouts, and have been laid low with the flu since then.
I'm planning to resurrect the os drive from the troublesome system for a post portem and will retest it provide output. One thing I have found during testing is a zfs mirror is reasonably transportable across controller number and target for the same driver, except the mirror does break - replacing the old missing device with the new one rectifies that. Mark. -- This message posted from opensolaris.org