I am trying to understand the AG scenario that is configured in the past and is working currently.
This is a multi subnet scenario but the cluster was configured with just 1 IP address. Probably a mistake that was made in the past. But surprisingly everything works just fine.
I have a cluster clust-prod that is configured with 1 static IP address say 10.x.x.x
I have 2 nodes from 2 different subnets
Node1: arz-db1
Node2: kty-db2
I have an AG ProdAGdbmarketing setup. I have listener DBprodlstn1 configured with 2 static IPS
ListIP1: 10.y.y.y
ListIP2 : 10.z.z.z
Currently the cluster in Failover cluster manager says offline & IP address says offline
Cluster Core Resources:
Name: clust-prod Offline
IP Address 10.x.x.x Offline
Ping clust-prod (cluster name) does not work
But surprisingly ping of Listener name, Availability group works just fine. I tried a manual fail over to Node Node2: kty-db2 which works fine. Then failing back to Node1 also works fine.
I would think, the cluster is setup incorrectly to begin with. I should have been setup with 2 IPs instead of one.
Although the cluster shows offline, how can AG, listener, failing over work?
Could anyone figure out how this works.