Network system, controller, recording device, service server, method of acquiring resource status of recording device, and computer program

A recording device comprising:

• a second processor configured to operate as a resource status providing unit and configured to connect via a network to a controller in which the controller comprises:
• a first processor configured to operate as a resource status acquiring unit that, upon receiving a resource status acquisition request to request acquisition of resource status information of one or more recording devices, the resource status acquisition request being transmitted in response to receiving a remote recording reservation request from a terminal unit, is configured to transmit a resource status acquisition instruction to the one or more recording devices via the network and to receive a result of a determination on the remote recording reservation depending on a resource status of the one or more recording devices, as a resource status information, from the one or more recording devices, wherein the terminal unit is configured to receive from a user a selection of a recording device most appropriate as a remote recording reservation site, and to make the determination on the remote recording reservation depending on the resource status of the one or more recording devices based on the resource status acquisition instruction transmitted from the controller via the network, and to transmit the result of the determination, as the resource status information, to the controller via the network.