I have a physical server installed dedicated for exchange 2007 UM in my network, I’m going to upgrade my exchange environment to exchange 2010 with the following configurations:
1- Two VM’s for HUB/CAS
2- Two VM’s for MB with DAG configuration.
I need to ask:
1- Where I have to install the UM roles within the above design?
2- How I can provide the high availability for UM roles?
3- How I can migrate the current UM configuration to the new Exchange environment?