I presently have a W2k3 std server with all DC, DNS, DHCP and Wins roles installed as well as being the Exchange 2003 std host. (I know, I know, not best practice).
I am presently in the process of migrating everything to a W2012 datacenter environment (on VMware). I have setup a 2 new DCs (PDC and BDC) that will take over for the old one and I want to transfer the FSMO roles between the new DCs. 1st DC will handle forest roles (Schema and Domain) while 2nd Dc will handle domain roles (RID, Infrastructure and PDC emulator). And yes, there will be a separate exchange server vm.
I have not yet gone ahead with this because I read that transfering the roles might "break" my exchange server and we all know that would be unacceptable.
Have any of you had to do this type of transfer in the past? Did you have any problems and if so how can I prevent them or correct them if they present themselves?