STORAGE SYSTEM, STORAGE DEVICE AND INFORMATION STORING METHOD

摘要

A storage system includes a primary-side storage device and a secondary-side storage device. The primary-side storage device includes a first storage unit that functions as: a primary-side reserving unit to reserve a primary-side storage area in the first storage unit; a request unit to request the secondary-side storage device to reserve a secondary-side storage area; a checking unit to receive identifying information of the reserved secondary-side storage area; a management storage unit to store the identifying information of the secondary-side storage area in the way of being associated with the primary-side storage area; and a transfer unit to transfer data stored in the primary-side storage area to the secondary-side storage area. The secondary-side storage device includes a second storage unit that functions as: a request accepting unit to accept a request for reserving the secondary-side storage area from the primary-side storage device; a secondary-side reserving unit to reserve the secondary-side storage area in the second storage unit in response to the request; and a report unit to report the identifying information of the reserved secondary-side storage area to the primary-side storage device.