Check manual page of esx_vsphere_vm_snapshots

Virtual Machine under ESX: Snapshot Settings
Distribution	official part of Check_MK
License	GPLv2
Supported Agents	vSphere

For a virtual machine running on ESX this check reports the number of snapshots, the currently running snapshot and the age of the latest snapshot as well as the oldest snapshot.

Discovery

One service is created for each Virtual Machine if there is snapshot information available.