I got a lot of reaction on my latest post. I said the following:
As does Double-Take for VMware Infrastructure, ESXReplicator makes use of VM snapshots on the source VM during replication
It is very important to note that there is a huge difference in the snapshot techniques used by Double-Take for VMware Infrastructure and VizionCore ESXReplicator.
Vizioncore only leverages snapshots during the replication cycle to free up the VMDK as they scan it. Replicator has it's own engine for the differential (cool huh?). This is very different to Double-Take that relies on a snapshot always being open.