Patent ID: 9053056
Filing Date: 2015-06-09
Classification: G06F

Abstract:
1. A control apparatus, coupled to a storage apparatus comprising a storage medium for storing data therein and an upper apparatus for processing the data, for controlling read-processing of the data stored in the storage medium in the storage apparatus in response to a request from the upper apparatus, the control apparatus comprising: a memory which stores the data read from the storage medium in the storage apparatus; an access monitor which monitors a state of access from the upper apparatus to the data stored in the storage medium in the storage apparatus; a schedule information generator which generates schedule information that determines contents to be stored in the memory based on the access state monitored by the access monitor; and a memory controller which controls recording of the data from the storage medium in the storage apparatus to the memory and deletion of the data from the memory based on the schedule information, the scheduling information generator generating, for each of the plurality of data items stored in the storage medium in the storage apparatus, the expected number of times of accesses in each predetermined time period, as the schedule information, and the memory controller deleting the data from the memory at the time the number of times of accesses to the data reaches the expected number of times of accesses if free space in the memory is smaller than a predetermined value.