Solaris Live Upgrade

I'm running Solaris Live Upgrade at work to upgrade our main server from Solaris 9 to Solaris 10, and one thing I haven't seen mentioned in all the things I've read about it is how long it takes.

Right now, for example, I'm running luactivate to activate the new boot environment. It's been running for half an hour now, with no indication about how long it's going to take. If I'd known it would take this long, I'd have scheduled it for earlier this morning. And yeah, it would've been obvious if I'd thought about it...

Shet my mouth, it just finished after 38 minutes. For the record, this is on a V480/ 16GB of RAM, and call it 50GB total of disks to be synced.