Currently we have in our main site 2 MBX servers and 1 CAS/HUB server and at our DR site we have 1 MBX server and 1 CAS/HUB Server.
The MBX servers are part of a DAG. I have been told that the main site needs some electrical work and needs to be powered down over the weekend.
What I need is the correct procedure so that the DR site can continue to provide email facilities whilst the electrical work takes place at the main site and how to change it back once it has been completed? The DR site already has a working domain controller.
Thanks for any assistance.
Simon