ALTERNATIVE PATH CONTROL SYSTEM AND METHOD

An information processing system of the invention includes a first system to which a first device is connected, that produces a request for the first device; a second system which is independent from the first system. The first system includes a first element which outputs the request to the second system. The second system has a second element which receives the request from the first element and outputs the request to the first system. The first system also has a third element which receives the request from the second element and outputs the request to the first device. A method for providing an alternative path for an information processing system which includes a first system, to which a first device is connected, that produces a request for the first device and a second system which is independent from the first system, wherein the first system includes a first element and a third element which is provided between the first element and the first device, wherein the second system includes a second element, includes first outputting the request from the first element to the second element; second outputting the request from the second element to the third element; and third outputting the request from the third element to the first device.