In a configuration in which it is necessary to transfer data from a first storage system to a third storage system through a storage system between the storage systems, there is a problem that it is inevitable to give an excess logical volume to a second storage system between the storage systems. The film has sufficient fixed charge to create an inversion layer adjacent the surface of the doped semiconductor material that under depletion conditions at least balances the number of surface states at the doping concentration of the underlying semiconductor material. The memory controller is additionally operable to read program data, e. The overlapping frequency resources can partially overlap or completely overlap.