| 摘要 |
<P>PROBLEM TO BE SOLVED: To achieve efficient data move control by effectively suppressing the increase in total capacity of management information for data management without increasing the size of a data move unit between storage media with respect to a storage medium control device which controls a plurality of storage media by HSM. <P>SOLUTION: Page sets each of which consists of a prescribed number of pages are defined, and a page set (object page set) which is likely to include a page to be stored in a high-speed storage medium 111 is determined on the basis of access frequencies of page sets. Among pages included in the object page set, pages which are stored in a low-speed storage medium 112 at present and have been accessed are selected and are moved to the high-speed storage medium 111. A page set management table 161 and a page management table 162 are provided as management information for this control. <P>COPYRIGHT: (C)2013,JPO&INPIT |
