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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.:

US 9448740 B1

PDFFull Text
Date of Patent:
Sep. 20, 2016

Filed:

Nov. 27, 2012

Storage apparatus and hierarchy control method

Applicant:

Hitachi, Ltd., Tokyo, JP;

Inventors:

Hiromichi Aiura, Yokohama, JP;

Hiroshi Koizumi, Odawara, JP;

Assignee:

HITACHI, LTD., Tokyo, JP;

Attorney:

Foley & Lardner LLP

Primary Examiner:

Henry Tsai

Assistant Examiner:

Christopher Bartels

Int. Cl.
CPC ...
G06F 13/12 (2006.01); G06F 13/38 (2006.01); G06F 3/06 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0647 (2013.01); G06F 3/061 (2013.01); G06F 3/067 (2013.01); G06F 3/0608 (2013.01); G06F 3/0631 (2013.01); G06F 3/0665 (2013.01); G06F 3/0689 (2013.01);
Abstract

Proposed are a storage apparatus and a hierarchy control method capable of reducing the workload of system operation and the workload of performance investigation. An access frequency of each of a plurality of measurement cycles for each unit area in a virtual volume is measured in a storage apparatus loaded with a hierarchy control function, the storage hierarchy which is proper as a placement destination of data written in each of the unit areas of the virtual volume is determined based on a measurement result, and the data written in a necessary unit area in the virtual volume is relocated to the storage area to which belongs the storage hierarchy that was determined as being proper based on a determination result.

Find Patent Forward Citations

Aiura, Hiromichi. (2016). Storage apparatus and hierarchy control method (U.S. Patent No. 9448740). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9448740

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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