Currently we have two Node DB and there is an observer which is monitoring the heartbeat of these two servers.
If primary Node has any issues then switchover happens and secondary node becomes primary Node.
We need to make one VIP which will be pointing to both the Nodes, in case any DB switch over happens then application can still continue with the VIP and there will not be any impact on application services.
Could you please let me know
a. what port is required to implement the VIP?
b. How many virtual IP's are required in order to implement Active-Active clustering?
Thanks in advance.