OS on all nodes : Windows Server 2012 R2
SQL on all nodes : SQL Server 2014 CU2
2 cluster nodes in primary data center and AlwaysOn AG doing Sync Transfer between these nodes with auto failover.
2 cluster nodes in DR data center(Different subnet) and AlwaysON AG doing an Async Transfer between primary replica and these nodes with manual failover.
As this is a multi sub-net cluster we are giving DR nodes 0 vote. 2 nodes on primary DC has votes and a file share on the primary DC has a vote.
If the primary DC is gone,then should we re-assign node votes to the 2 nodes in DR site and again manually configure a file share witness and give it a vote?
Whats the best strategy here? Any recommendation is highly appreciated.
Thank you,