Patent ID: 9015444
Filing Date: 2015-04-21
Classification: G06F

Abstract:
1. An access apparatus that accesses an information recording apparatus including a nonvolatile memory storing file data, the apparatus comprising: an available storage space calculation unit that an application control unit that transmits a request to perform an available storage space calculation process of calculating the available storage space to the available storage space calculation unit, wherein the application control unit the available storage space calculation unit performs the available storage space calculation process for at least one of the plurality of fixed-length block areas that uses the designated calculation target area as a management target, and the application control unit designates, as the information about the cluster number of the first cluster in the calculation target area and about the size of the calculation target area, information about the cluster number of a first cluster for which the storage space calculation is to be started in the calculation target area and about the size of the calculation target area in an order sequentially from a first part of an area that is managed by the file system when transmitting the request to perform the storage space calculation process to the available storage space calculation unit.