Hi All,
I'd appreciate some help in understanding the following scenario in my test environment.
I have created a DAG with 2 replica servers (both of which are HyperV VM's running W2012 Std).
From a client PC in my test lab, I can connect to the virtual listener of my DAG and confirm via the "select @@servername" command that I am connecting to the primary replica server.
Using the Failover Wizard, I can easily move to primary instance between my 2 nodes and the command above confirms that the primary replica server has changed. So far so good.
What I wanted to test, was what would happen to my DAG in the event of a complete loss of power to the server that was acting as the primary replica server. At first, I thought I would stop the SQL Server service on the primary server, but this did not result in my DAG failing over to the secondary replica. I have found out that the only way I can do this is by effectively shutting down the primary server in a controlled manner.
Is there any reason why either stopping the SQL Server service on the primary replica, or indeed forcing a power off of the primary replica does not result in the DAG failing over to the secondary replica?
Thanks,
Bob