Hi,
We have 2 physical servers in DC and DRC. Our UC servers in DC, needs to change the IP address because of network policy.
Server DC -> CUCM Pub, CUCM Sub 1, CCX Primary, Unity Connection Pub
Server DRC -> CUCM Sub 2, CCX Secondary, Unity Connection Subs
Since all the VM in DC will have a new IP address, which server should be changed first? Should we need to change all the server IP in one maintenance time or we can plan several maintenance time windows to do this?. I want to avoid to reinstall all the server. Thanks in advance.