failover cluster and DNS record

Question

We are doing a BCP action for our failover cluster, as we do this we have to manually delete the DNS A record for the cluster name and let the secondary server register the cluster name and IP address... Is there a way to have the DNS record dynamically update the cluster name DNS host A record when the failover occurs?

Answer 1

Hi,

Based on my understanding, the Cluster nodes are coss-subnets, in this way, it's recommended to add multiple IP addresses for the CNO, when the Current host server in subnet 1, IP in subnet 1 will online, when failover to subnet 2, IP in subnet 2 will online.

We may use the following method to add an additional IP address for the CNO:

https://techcommunity.microsoft.com/t5/failover-clustering/configuring-ip-addresses-and-dependencies-for-multi-subnet/ba-p/371698

After configuring the IP addresses, when the Cluster failover to Subnet 2, the owner node will register the DNS record for CNO.
Thanks for your time!
Best Regards,
Anne

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Answer 2

https://support.microsoft.com/en-us/help/969049/registration-of-dns-ptr-records-for-a-failover-cluster-on-2008-server

I hope it will help if issue resolve please accept answer and vote