How to Modify Public Network Information including VIP in Oracle Clusterware Without Changing Interface

Hi,

Changing public IP or VIP only without changing interface, subnet or netmask or changing MAC address only without changing anything else

If the change is only public IP or VIP address and the new ones are still in the same subnet, same interface, or if the change is only for public IP MAC address, IP/interface/subnet/netmask all remain the same, nothing needs to be done at clusterware layer, all changes need to be done at OS layer to reflect the change. For this;

Shutdown Oracle Clusterware stack
Modify the IP address at network layer, DNS and /etc/hosts file to reflect the change or modify the MAC address at network layer
Restart Oracle Clusterware stack

Above change can be done in rolling method, one node at a time.

Stop database and vip resources.