You can use the Destroy VVOL Datastore option to delete VVOL datastores. If you choose this option, the deleted VVOL datastore is removed from the system, and you will not be able to access it.
You can only use this option if there are no virtual machines on the VVOL datastore. If you attempt to delete a VVOL datastore that has virtual machines, you get an error message and no changes are made to the VVOL datastore.
While this operation destroys the VVOL datastore (that is, the Backing Storage), it does not delete the FlexVols used by the datastore from the system.