High availability does not prevent corruption of software that is running inside the virtual machine. By implementing high availability, you have one instance of a virtual machine. In some cases, you might want to have a spare copy of one virtual machine that you can run if the original virtual machine fails. This feature provides administrators with an economical way to store VM copies safely off-site. The tool also enables VM replication across the Internet using HTTP and a high-end PC as the secondary host.
This allows a data center administrator to have a standby server with copies of the VMs ready at a moment’s notice. The Replica function then copies the snapshot to the secondary host. A mechanism for creating application-consistent backups called a VSS writer creates a snapshot of the virtual machine (VM) on the primary host. The replication process involves a primary host and a secondary host.