Matsushita Electric Industrial Co., Ltd.

Hiromi Matsuki

Toyotoshi Uemura

Tatsuya Sakanashi

Fumitoshi Saito

When a computer issues a reading request for data stored in a storage medium, it is judged whether or not the respective data for which the reading request is issued are in cache hit with data that are stored in a read buffer. Only data which are not in cache hit among the data for which the reading request is issued are read out from the storage medium, so as to be buffered in the read buffer. The data for which the reading request is issued are transferred from the read buffer to the computer, and data at addresses which are subsequent to the data for which the reading request is issued are pre-read from the storage medium and buffered in the read buffer so as to be continuous with the buffered read data. Thereby, it is possible to utilize cache data efficiently and effectively.

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Ehime, Japan

Hiromi Matsuki