1. A cache management apparatus, comprising: an access pattern analysis unit configured to analyze an access pattern of each of one or more pages present in a first cache by monitoring data input/output (I/O) requests; a page class management unit configured to determine a class of each of the pages based on results of the analysis performed by the access pattern analysis unit; and a page transfer management unit configured to transfer one or more pages classified into a first class including pages to be transferred, to a second cache based on results of the determination performed by the page class management unit.