`<backup-name>.protected`. For Proxmox Backup Server, it is handled on the
server side (available since Proxmox Backup Server version 2.1).
+Use the storage option `max-protected-backups` to control how many protected
+backups per guest are allowed on the storage. Use `-1` for unlimited. The
+default is unlimited for users with `Datastore.Allocate` privilege and `5` for
+other users.
+
[[vzdump_restore]]
Restore
-------