31a12730_cation_vs__storage_replication__Feature
[SRM vSphere Replication] Included as an appliance with SRM 5.1. Requires vSphere hosts and vCenter Servers to operate Varies by storage vendor. The cost of storage-based replication will include storage array hardware, licensing and storage snapshot licensing [Feature] 
Cost
SRM replication choices: vSphere Replication vs. storage replication
Feature