Cleanup Old Snapshots

Using the vSphere Plugin version 6.6.3 and later, if the VMware system contains snapshots that were not deleted automatically by the vSphere Plugin, the following commands are useful to clean up your system.

Cleanup old snapshots and previous failed generation
  vsphere-ctl clean-snapshot --snapshot myhost

Cleanup old snapshots with a name starting with a string
  vsphere-ctl clean-snapshot --snapshot-base pluginTest myhost

Cleanup snapshots with all children (probably faster)
  vsphere-ctl clean-snapshot --snapshot --snapshot-delete-child myhost

When starting a new backup job, the vSphere Plugin will automatically check if the previous job had a problem and will delete the old snapshot if required.