The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 10, 2015
Filed:
Feb. 19, 2014
Applicant:
Hitachi, Ltd., Tokyo, JP;
Inventors:
Takanori Sato, Yokohama, JP;
Takato Kusama, Yokohama, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/08 (2006.01); G06F 3/06 (2006.01); G06F 11/34 (2006.01);
U.S. Cl.
CPC ...
G06F 3/061 (2013.01); G06F 12/0866 (2013.01); G06F 3/0647 (2013.01); G06F 3/067 (2013.01); G06F 3/0685 (2013.01); G06F 11/3485 (2013.01); G06F 11/3433 (2013.01); G06F 2201/88 (2013.01); G06F 2201/885 (2013.01);
Abstract
The present invention measures an actual utilization frequency of data and controls a location of this data in a storage apparatus in a case where a host computer makes joint use of a storage apparatus and a cache apparatus. A portion of data used by an application programA is stored in a storage apparatusand a cache apparatus. A management apparatusdetects an I/O load of a page (A), and detects an I/O load of cache data (B). The management apparatusdetermines a corresponding relationship between the page and the cache data (C), and adds the I/O load of the cache data to the I/O load of the page.