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:
Sep. 23, 2014
Filed:
Mar. 13, 2012
Kazuichi Oe, Kawasaki, JP;
Kazutaka Ogihara, Kawasaki, JP;
Yasuo Noguchi, Kawasaki, JP;
Tatsuo Kumano, Kawasaki, JP;
Masahisa Tamura, Kawasaki, JP;
Yoshihiro Tsuchiya, Kawasaki, JP;
Takashi Watanabe, Kawasaki, JP;
Toshihiro Ozawa, Kawasaki, JP;
Kazuichi Oe, Kawasaki, JP;
Kazutaka Ogihara, Kawasaki, JP;
Yasuo Noguchi, Kawasaki, JP;
Tatsuo Kumano, Kawasaki, JP;
Masahisa Tamura, Kawasaki, JP;
Yoshihiro Tsuchiya, Kawasaki, JP;
Takashi Watanabe, Kawasaki, JP;
Toshihiro Ozawa, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
An access method includes: obtaining, by a computer, a result of monitoring a busy rate and a number of access operations per unit time of a storage device, the storage device having a first storage area and a second storage area; calculating a characteristic of correlation between the busy rate and the number of access operations per unit time based on the result; calculating a second number of access operations per unit time based on the characteristic of the correlation such that a sum of a first busy rate corresponding to a first number of access operations per unit time and a second busy rate corresponding to a second number of access operations per unit time becomes equal to or lower than a given busy rate; and controlling a number of operations to access the second storage area per unit time based on the second number of access operations.