Currently we have 2 sites and all users are in Site A and Exchange servers (CAS, HUB and 2 Mailbox servers in a DAG) in Site B. Users connect to email using outlook and everything is fine.
Now as a DR solution, we wanted to install Exchange in Site A and configure users to connect to local Exchange server.
I am planning to install One server with CAS, HUB, MBX and part of DAG. Now how do i point users to this new CAS ? and where should i my witness server located?
any answer is greatly appreciated!