Workload Mobility and Disaster Recovery : Designing the Solution : 4.7 Disaster Recovery Design : 4.7.1 Virtual Machine Replication : 4.7.1.3 Multiple Point-In-Time Instances
   
4.7.1.3 Multiple Point-In-Time Instances
When configuring replication of a virtual machine, you can configure multiple point-in-time (PIT) instances, which are basically a series of timestamped snapshots at the target site that you can leverage post-failover. vSphere Replication supports up to 24 multiple PIT instances per virtual machine. See Replicating a Virtual Machine and Enabling Point-in-Time Instances for more information.
The benefit of this is that the end customer can revert to a known state of their virtual workloads after a disaster recovery scenario.
See also the VMware vSphere Replication Administration guide.