I have a question about traffic usage between PBS client and server (to keep the traffic billing low as possible 
)
When creating a backup from a VM directly to a external PBS server, does PBS client only sends the data differential to the server? Or must I use a PBS server locally and sync with the external PBS.
)When creating a backup from a VM directly to a external PBS server, does PBS client only sends the data differential to the server? Or must I use a PBS server locally and sync with the external PBS.
