Site Recovery Manager 6.x Install Guide [esxsi.com]
This post will walk through the installation of Site Recovery Manager (SRM) to protect virtual machines from site failure. SRM plugs into vCenter to protect virtual machines replicated to a failover site using array based replication or vSphere replication. In the event of a site outage, or outage of components within a site meaning production virtual machines can no longer run there; SRM brings online the replicated datastore and VMs in vSphere, with a whole bunch of automated customisation options such as assigning new IP addresses, boot orders, dependencies, running scripts, etc. After a failover SRM can reverse the replication direction and protect virtual machines ready to fail back, all from within the vSphere web client.