Monitoring Exchange Server 2013 DAG is now only possible via the EMS, In this article I’ll show the cmdlet that will help you keep an eye on your databases.
The first command will show you the status of all the databases in the DAG:
You can also use the –identity and –server option to only see the status of a DB or Server
To test DB replication health use Test-ReplicationHealth
To test the replication health of one server use –identity with the server name