Setting a "Preferred" database copy in a DAG
Posted on 2013-05-21
I currently have a Microsoft Exchange 2013 deployment which has two servers in two different sites. Both servers hold the Mailbox and Client-Access-Server roles.
The two servers are both members of a Database Availability Group, and they each hold copies of a single mailbox database, the only one used by the organization.
The two sites are linked by a site-to-site VPN, but the Internet connection at Site A is 3x as fast and housed in a better facility, so as a result, I normally have the "Server A" be the Active Member.
However, any time there's a connectivity issue or anything happens at Server A (e.g. install updates and reboot), there is a switchover to Server B. It never switches back. So I have to manually go in and activate the Site A database copy whenever anything happens.
Is there a way I can specify that Site A should always be the active member whenever possible, so that it returns to being the active member after a switchover?