VMware vSphere Replication is an extension to VMware vCenter Server that provides hypervisor-based virtual machine replication and recovery.

vSphere Replication replaces storage-based replication. It protects virtual machines from partial or complete site failures by replicating the virtual machines from a primary site to a secondary site.

vSphere Replication provides several benefits as compared to storage-based replication.

Data protection at lower cost per virtual machine.

A replication solution that allows flexibility in storage vendor selection at the primary and secondary sites.

Overall lower cost per replication.

With vSphere Replication, you can replicate virtual machines from a primary datacenter to a secondary site quickly and efficiently. After you set up the replication infrastructure, you can choose the virtual machines to be replicated at a different recovery point objective (RPO).

You can configure all vSphere Replication features in the vSphere Web Client. You monitor the status of a replication through the replication management and monitoring dashboard.

The vSphere Replication appliance provides all the components that vSphere Replication requires.

The vSphere Replication appliance adds a plug-in to the vSphere Web Client.

In a typical vSphere Replication installation, the primary site provides business-critical datacenter services. The secondary site is an alternative facility to which you can migrate these services.

vSphere Replication includes a set of roles. Each role includes a set of privileges, which enable users with those roles to complete different actions.

After you deploy the vSphere Replication appliance, vSphere Replication integrates with your vSphere infrastructure and allows you to replicate virtual machines from one site to another.