Hi,
I have a cluster that is used for SQL Always On with two IPs on different networks.
Name: Cluster Name
IP Address: 172.16.0.200
IP Address: 172.17.0.200
As far as I understand when a role fails over the IP of the cluster is changed and the DNS too. This is happening successfully.
But I noticed today that all my roles are on the network (172.16.0.0/24) but the IP of the cluster name is on the network (172.17.0.0/24).
The most interesting thing is that ping does not respond to either IP.
Then a question arose regarding these IP changes in the cluster.
As I have several roles, some have two IPs (one from the 172.16.0.0/24 network) and one from the network (172.17.0.0/24) while others only have network IP (172.16.0.0/24).
Can anyone help me understand why the cluster's IP was like this?
Interesting...
I just turned off the server on the network (172.17.0.0/24) and the IP was returned to the network (172.16.0.0/24) and now I can ping the network's IP (172.16.0.0/24).
But when the switch to the network IP (172.17.0.0/24) of the cluster name occurs, I can access the cluster, but it does not drip from anywhere.
I restarted the network server again (172.17.0.0/24) everything went back to normal.
The strangest thing is that I can ping the IP of the network server (172.17.0.0/24), but not just the IP of the cluster name (172.17.0.0/24).
I'm confused.
Thank you.