Upgrading from Exchange 2010 SP1 to SP2 - Do all servers need to be updated that night
Posted on 2014-03-12
I plan to install the Exchange 2010 SP2 from Exchange 2010 SP1. I am not sure how long the service pack takes to install, but do all servers need to be updated to SP2 for email to work? Can you have some still on SP1 and some on SP2? I wanted to plan around if my maintenance window is long enough to complete the install in one night.