Site Recovery Manager can use vSphere Replication to replicate data to servers at the recovery site.

vSphere Replication does not require storage arrays. The vSphere Replication storage replication source and target can be any storage device, including, but not limited to, storage arrays.

You can configure vSphere Replication to regularly create and retain snapshots of protected virtual machines on the recovery site. Taking multiple point-in-time (PIT) snapshots of virtual machines allows you to retain more than one replica of a virtual machine on the recovery site. Each snapshot reflects the state of the virtual machine at a certain point in time. You can select which snapshot to recover when you use vSphere Replication to perform a recovery.

Figure 1. Site Recovery Manager Architecture with vSphere Replication


SRM architecture with vSphere Replication


Using vSphere Replication and Site Recovery Manager with vSphere Storage vMotion and vSphere Storage DRS

vSphere Replication is compatible with vSphere Storage vMotion and vSphere Storage DRS on the protected site. You can use Storage vMotion and Storage DRS to move the disk files of a virtual machine that vSphere Replication protects, with no impact on replication.

Using vSphere Replication and VMware Virtual SAN Storage with Site Recovery Manager

You can use VMware Virtual SAN storage with vSphere Replication and Site Recovery Manager.