The high availability options for Mailbox Databases
I am planning to upgrade my Exchange Server 2003/2007 to 2010. Can I still use Single Copy Cluster (SCC), Local Continuous Replication (LCR), Stand-by Continuous Replication (SCR) and also Cluster Continuous Replication (CCR)? I heard that in Exchange 2010, these high availability options were replaced by DAGs or the Database Availability Groups. If so, what are the benefits of using DAG in Exchange 2010?