Check out these 2 cool videos at the Microsoft Exchange Team Blog, courtesy of Scott Schnoll:
- High Availability in Exchange Server 2010 - Part 1: Exchange Server 2010 includes a new unified platform for both high availability and site resilience that is very different from the high availability model and solutions provided in previous versions. Exchange 2010 includes significant changes at its core that integrate high availability deep in its architecture, making it even less costly and easier to deploy and maintain than previous versions of Exchange. In this and upcoming videos, I'll give you a tour of the new high availability features, such as database availability groups and mailbox database copies.
- High Availability in Exchange Server 2010 - Part 2: In part 2, I show you how to create a DAG and how to add Mailbox servers to a DAG.