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 8230188 B1

PDF
Full Text
Expired
Date of Patent:
Jul. 24, 2012

Filed:

Jan. 28, 2010
Applicant:

Takeshi Umezuki, Kawasaki, JP;

Inventor:

Takeshi Umezuki, Kawasaki, JP;

Assignee:

Fujitsu Limited, Kawasaki, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 12/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

A storage management apparatus controls the storage device such that data is redundantly stored in each of an opened area and a closed area. The storage management apparatus includes an area laying-open unit and a re-redundancy unit. The area laying-open unit deletes or compresses data stored in the at least two closed areas, converts one of the closed areas into the opened area and writes data corresponding to a write request to the opened area and to at least the other of the closed areas, if a capacity of the storage device reaches a given value. The re-redundancy unit converts memory area of an add-on storage device into the closed area and copies data in an opened area, placed in a redundant-storing relationship with the data deleted or compressed by the area laying-open unit, to the closed area, if the storage device is added on.


Find Patent Forward Citations

Umezuki, Takeshi. (2012). Storage management apparatus, storage system, and storage management method (U.S. Patent No. 8230188). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8230188

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