What is the proper way to activate a database in a DR site using a Exchange 2010 DAG? Here is my setup. I have two mailbox servers in my production site and one mailbox server with the CAS and Hub Transport role in my DR site. Each Each server in the production site has 3 databases which replicate to the other server in production. One of the 3 databases in production also replicates to my DR server. This is the database my mailbox is on for testing. What I did was shut down my two production servers and then tried to activate the copy on the DR server. I am doing this by right clicking the database in the EMC and selecting Activate Database Copy....No matter what I try, it fails because it cannot connect to the production server. But, in a real DR situation, these servers will probably be down so how do I activate this database in my DR site so users can access it. This is the last hurdle I have before I move this into production so I am hoping someone can help me out.