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.

Date of Patent:
Jul. 01, 2014

Filed:

Mar. 25, 2010
Applicants:

Mioko Mori, Yokohama, JP;

Hirotaka Nakagawa, Sagamihara, JP;

Hironori Emaru, Yokohama, JP;

Inventors:

Mioko Mori, Yokohama, JP;

Hirotaka Nakagawa, Sagamihara, JP;

Hironori Emaru, Yokohama, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 17/30 (2006.01);
U.S. Cl.
CPC ...
Abstract

A storage management system, if the required response performance of the file is added to the access request from the host computer, compares the required response performance of the file with the response performance of the pool volume assigned to the page. If the response performance of the compared pool volume does not satisfy the required response performance, the storage management system selects a pool volume whose response performance satisfies the required response performance from the pool volumes, migrates the page to the selected pool volume, and stores the data in the page to which the pool volume is assigned.


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