We are having too much Exchange network traffic going between our 2010 CAS at a remote data center and our local workstations, so we would like to have an internal CAS when we migrate to 2013. We would like internal email to be able to flow without sending any traffic out across the WAN.
Current Layout:
Local office: single exch2010 server with mailbox and hub transport. domain controllers and dns servers are also in local office
Remote data center: single exch2010 server with only CA role (uses domain controller/dns in local office)
Is it possible to migrate that old layout above to this new plan below?
local office: single exchange 2013 server with CAS and mailbox role
data center: 2 multi role Exchange 2013 servers with CAS, mailbox and hub transport behind a load balancer. Plus local domain controller and dns server to be installed in data center.
We would like to have a 3 member DAG with one DAG member in our local office and the other 2 in the data center.
We would like our desktop PCs to use the internal CAS and mailbox server and remote users to use the servers in the data center so that we can greatly cut our local office LAN network i traffic related to internal emails and only send traffic out to
the data center when sending/receiving mail from external users.
Does anyone have suggestions on how to accomplish this?