Greetings all.
Currently here is the setup we have built out. All are Server 2012 R2 OS
2 node FCI shared storage SQL 2012 servers in production site. Failover works flawlessly between them. WSFC setup between them
1 node in DR, member of the WSFC with the 2 servers above but not FCI, seperate storage infrastructure but same disk drive letter setups
Availability Groups setup between the 2 that are fully synchronized
We are going to have a planned primary outage in the primary DC. Nerves are getting the better of me in regard to the setup. I know the data is there and it can be accessed. My question is that once i perform the failure of the two nodes in the FCI how are my applications going to know how to reach the HADR server as it is on a seperate instance? Does SQL aliasing need to be setup in the configuration to make it work properly or am i being overly paranoid at this point?