Site Recovery Manager (SRM) is a VMware product that provides a framework for automating the protection and failover between VMware virtualized data centers. SRM is licensed as a separate product. Licensing is per VM protected and there are two license editions: Standard and Enterprise. The Standard Edition provides for the protection of up to 75 virtual machines, and the Enterprise Edition can protect an unlimited number of virtual machines.
A complete book can be dedicated to the implementation and use of SRM. This book is just meant to be a quick overview of the configuration and capabilities of SRM. More information on the implementation and use of SRM can be found in the SRM
documentation at http://www.vmware.com/support/pubs/srm_pubs.html.