Hi Team,
We have Windows Failover cluster. We are hosting SQL FCI (multiple SQL clustered instance with network name and IPs.) in Primary DC and standalone SQL (multiple SQL instance) All 3 nodes are part of same WSFC in DR . We have node 1 and node 2 in primary with shared storage Node 3 in DR is standalone with its own attached local drives.
Between primary and DR we have separate network for replication now and want to use the same for Availability group replication traffic. So now replication network card on node 1 , node 2 and node 3 has static IPs assigned. For e.g. node 1 and node 2 has SQL FCI Instance with its own IP 10.3.x.x (Public) , replication network NIC IP as 10.4.2.1 (node 1), 10.4.2.3 (node 2) and in DR SQL node has 10.11.x.x (public) and 10.5.2.1(replication), in this situation what should be the Endpoint creation configuration between the SQL instances?
If i give node 1 replication IP as Endpoint IP i.e. 10.4.2.1:5022, replication will fail if node 1 is down and AG moves to node 2 since node 2 will not understand 10.4.2.1, Similarly what should be the endpoint at DR SQL since it has standalone SQL with multiple instances (machine name\instancename) sharing the same IP address. my understanding with DR SQL endpoint is, for every SQL instance, IP will be the same for endpoint but with different port number?
2. What should be the endpoint URLs in this case? So irrespective of the endpoint replication IPs, i believe server endpoint URL need to be SQL FC network name\instancename or need to be modified as per the endpoint IPs?
3. I was going through some articles/similar questions and some pointers were to have SharedIP (and not node 1 and node 2 NIC Ips) ip for endpoint creation..any idea where do we define these sharedIPs and how do we bring them online? What shuld be the Server endpoint URL for SQL instance?
For more clarity on kind of setup, i have a very similar setup as of http://www.sqlservercentral.com/articles/Failover+Clustered+Instance+(FCI)/92196/
Any pointers will be really appreciated . Thanks
Regards,