A tape apparatus includes a controller and a plurality of tape drives. Through-substrate vias are formed in a semiconductor substrate. Only for the user who desires, a sheet SH2 is used in addition to a conventional index sheet. The available GPU resources are then allocated to some subset of these ranked virtual machines as physical GPU capacity is matched with the requirements of the subset. The annular oil chamber is connected by conduits to an oil reservoir. When the first data does not match the second data, the first path is determined to have encrypted the file when writing to the data storage.