Update:  I was off base with my assumption about the upgrade problem not being 
related to MPXIO (Traffic Manager). That is exactly where the problem lies.

I finally had a chance to try doing an upgrade on a server with a SAN-based 
zone root without MPXIO and the upgrade worked with no problems. So disregard 
my comments about the fundamental design flaw - they are wrong. My suggested 
changes are unneeded.

I still have the problem with upgrading. Live Upgrade still does not look like 
it will ever be a possibility for the reasons listed in the original post. It 
now looks like I will first have to convert my servers off of MPXIO prior to 
doing the upgrade, run the upgrade, and then re-enable MPXIO. (As well as 
unencapsulating and re-encapsulating the boot drives for Veritas Volume 
Manager.) It's going to be real ugly, particularly because I don't currently 
know of a way to identify the mapping between the MPXIO devices and the same 
non-MPXIO devices.

I still think that using MPXIO is the correct design decision for high 
availablity of the zones but the side-effects of that decision are a lot worse 
than I had anticipated. Perhaps a future update will allow for the use of MPXIO 
as an option for sites that are in my position.

Phil
 
 
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