Patent ID: 7103733

Claim:
A computer system including at least one computer and at least one storage connected to the computer, the least one storage comprising: a device that obtains information concerning an area of the at least one storage that is used by the at least one computer; a device that obtains information concerning a capacity within the area that is used by the at least one computer to store data; a device that notifies the at least one computer of a status of the area; wherein the at least one storage includes a device that creates new areas within the at least one storage when the capacity used in the area increases, a device that notifies the at least one computer that each of the new areas has been created, and a device that notifies the at least one computer, when the area available for creating new areas within the at least one storage decreases as a result of an increase in the areas created, that a new disk device within the at least one storage is necessary to create new areas.