In EXCHANGE Server 2007, we have server to server failover scenarios, and we need to use failover CLUSTERING to configure the HA options which is very difficult to manage

In Exchange Server 2010, HA modified to Database level which provides quick recoverability in disk and database failures. We can have multiple database copies up to 16 mailbox copies in a database availability group. Admin have replicate mailbox copies up to 16 replicated copies. Capabilities of having CCR and SCR into SINGLE platform.

In Exchange Server 2007, we have server to server failover scenarios, and we need to use failover clustering to configure the HA options which is very difficult to manage

In Exchange Server 2010, HA modified to Database level which provides quick recoverability in disk and database failures. We can have multiple database copies up to 16 mailbox copies in a database availability group. Admin have replicate mailbox copies up to 16 replicated copies. Capabilities of having CCR and SCR into single platform.