I was just informed that the upgrade of our BES is going through this weekend. Part of the motivation is an open change managment shedule, and the hope of virtualization of the actual BES.
So the plan is to shut down services, run a P2V, then apply the 4.1.6 upgrade to the new virtual server. this lets us revert back to the Physical server if things go poorly.
the details: We're an Exchange 2003 shop, with about 350 BB users on a MS 2003 SP2 server. The DB is MSDE 2000. Ive backed up the Logs, the Registry, and the Configuration DB to networked locations.
I'm interested in any obvious gotcha's the crowd here may see.