I have 2 exchange server 2010 with DAG. They are both in different AD sites. The DAG replications from the primary location to the DR location normally. The primary location is always the mounted database and the DR is healthy.
My primary exchange server failed completely and it is unrecoverable, I need to re-install an OS and Exchange. I found procedures on re-adding the failed exchange by reinstalling the OS and reinstalling exchange with the recover command, but my concern is when I bring it back up, will the DR site database thats active at the moment automatically copy its contents to the primary site exchange once its up and I complete the recover procedure? I will be bringing it back up with the same server name and IP.
I would really appreciate the help.