I have configured SQL 2017 AlwaysOn with Node 1 and Node 2 in one location, and Node 3 in a different location. Node 1 is the primary replica, while Node 2 and Node 3 are secondary replicas. We are planning to perform a disaster recovery (DR) test by shutting down Node 1 and Node 2, and then bringing Node 3 online. Would you like guidance on how to proceed?