vSphere Replication is included for free with vSphere Essentials Plus or higher. vSphere Replication allows virtual machines to be replicated between sites or between datastores on the same site. It leverages Change Block Tracking (CBT) to replicate changes only between the source virtual machines and the replication target.
vSphere Replication appliances are deployed at each site participating in the replication. Multiple vSphere Replication appliances can be deployed in order to improve the replication performance.
To deploy vSphere Replication and configure a virtual machine for replication, perform the following steps: