I have customer with a S2S sollution with a Win 2003 Std PDC in both ends that syncronize all relevant data Files and off course AD, DNS etc. so that they can run autonomously if the S2S should fail.
The S2S is handled by a couple of Cisco routers.
The mail is currently hosted.
They want to upgrade the server solution to 2008 and are also considering implementing Exchange. They want the same fail safe solutions as today which would be no hazzle if the buy regular Server and Exchange licenses. But &. And heres the question.
Could you make this setup based upon MS EBS? 1 PDC (GC) / Exchange Server in both ends of the S2S and the last 1 or 2 servers depending upon whether you buy std or prem used for whatever.