When you create a Business Continuance plan for recovering Exchange data, you can create it at a local or remote location. The plan specifies resources and other information that will be needed for recovery after a disaster occurs.
Ensure that you associate initiators for connecting each of the LUNs in the destination host. For a cluster, associate initiators for each of the LUNs to each node of the destination cluster.
In a local recovery scenario, you can recover your Exchange data in the same host using a different set of storage resources. In a remote recovery scenario, you can recover the Exchange data in the remote host using a different set of storage resources.
For Exchange Server 2007 stand-alone remote recovery, mailbox re-homing is done automatically. In cluster configurations with Exchange, the Business Continuance plan creation will also configure the Access Control List of the Exchange machine account by adding access control entries for the DR cluster machine account and the cluster node machine accounts.