It is an object of the present invention to display the amount of storage subsystem use by a specified computer or file system in accordance with the information acquired from computers and storage subsystems. An information collection engine provided for each computer acquires file system configurations from computers and volume configurations from storage subsystems. Further, a special computer is provided with a polling engine that gathers the data acquired by each information collection engine and stores it in an internal database, and with a data display engine that acquires the information about the amount of storage subsystem use by a specified computer or file system from said internal database and displays it on screen.