VPS Disk space over use
Description of problem:
\# qemu-img info -U v1001-dluw9EHRDbmMd8fQ-CACjC7FWnMhISeDM.qcow2

file format: qcow2

virtual size: 800G (858993459200 bytes)

disk size: **812G**

cluster_size: 65536

Format specific information:

compat: 1.1

lazy refcounts: false

refcount bits: 16

corrupt: false

Disk size is using beyond the Virtual size.

How is that even possible ?