-In the process of designing a 2 site 2 multi-role server DAG
-Exchange 2010 sp3 ru6
-server 2008 r2 enterprise
-There will be 1 primary data centre and one DR datacentre connected via a 100mb WAN link
-There is 1 Witness Server in the primary datacentre
-DAC Mode enabled
There is one scenario that I cannot find any documentation on. We have plans for WAN outages, and total site failures but not planned site outages.
What I would like to know is how to handle a planned outage of the primary site like building maintenance causing a power outage. Can site B be activated as the active database a couple of days before the outage gracefully and then gracefully switch back when the maintenance is complete and the primary site comes back online? I want to avoid treating a planned site outage as a disaster recovery situation.