Methods are provided for forminginserting a magnet in a rotor. Electrical-dispersion compensators respectively compensate the dispersion in the electrical signals using a transversal filter having plural taps. The management system manages, on a memory, configuration information of logical volumes allocated to virtual instances managed on a virtual layer of the information processing apparatus and operation information of hardware resources included in the storage subsystems. A one-piece gripping member can be secured to the knife to overlap both handles. The executable objects, map the user inputs and objects to associated objects and external references in the web server application corresponding to the base application, and perform the manipulations and operations corresponding to the user input.