In one mode, a management calculator is connected to a host calculator and a storage device, and stores, in a memory, composition information and function setting information. The composition information shows multiple logic storage regions provided by the storage device, and objects that are stored in one logic storage region from among the multiple logic storage regions and that are executed by the host calculator, the logic storage regions and the objects being shown in association with one another. Meanwhile, the function setting information shows storage functions set for the logic storage regions.