In our Windows 2003 network, we have 3 DC/GCs and about 20 member servers including Exchange servers.
We want to improve the performance by replacing two GCs with more powerful servers, then we want to demote these 2 old GCs.
I am thinking about installing the new GCs and then swap their IP addresses with the ones that is being used by current GCs therefore I won't need to change DNS server address settings on all 20 member servers. Is this safe to do? I am wondering whether it will makes a problem with Exchange and AD replication.