5.9.4 vCloud Director Snapshot Characteristics
vCloud Director 5.1 snapshot capabilities include the following:

One snapshot per virtual machine is permitted.
NIC settings are marked read-
only after
a snapshot is taken.
Editing of NIC setting
s is disabled through the API after
a snapshot is taken.

To take a snapshot, the user must
have the vAPP_Clone user right.
Snapshot storage allocation is added to Chargeback.
vCloud Director performs a storage quota check.

REST API support
is provided to perform snapshots.
Virtual machine memory can be included in the snapshot.
Full clone is forced
on copy or move of the virtual machine, resulting in the deletion of the snapshot (shadow VMDK).