A volume snapshot is a full copy of a virtual machine's volume (with its data) at the time the snapshot was taken. The volume is the hard drive of a virtual machine. They can be used for:
- Horizontal scaling: Rapid deployment of multiple cloud servers based on existing "golden" volumes.
- Full bare metal backup: A cloud server can be created from an existing volume snapshot in order to extract backed up data.
- Volume parking: A snapshot can be created before deleting a cloud server to keep data without paying for a cloud server.