Array-based: The replication schedule for a VM is determined by the storage snapshot frequency configured for a particular volume when using asynchronous replication, resulting in a RPO that can range from minutes to hours.

vSphere Replication VR): The replication schedule for a VM is determined by the recovery point objective (RPO) set when configuring replication for that VM. The possible value for RPO can be any
number of minutes from 5 to 1,440 (24 hours). There is currently no way to schedule replication at
specific times VR generates its own replication schedule internally by factoring all replicated VMs on each VMware vSphere host.