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:
Sep. 03, 2019

Filed:

Jan. 05, 2018
Applicant:

Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;

Inventor:

Shinichiro Matsumura, Kawasaki, JP;

Assignee:

FUJITSU LIMITED, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/06 (2006.01); G06F 12/02 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0619 (2013.01); G06F 3/0608 (2013.01); G06F 3/0638 (2013.01); G06F 3/0641 (2013.01); G06F 3/0643 (2013.01); G06F 3/0679 (2013.01); G06F 3/0688 (2013.01); G06F 3/0689 (2013.01); G06F 12/023 (2013.01); G06F 12/0253 (2013.01); G06F 2212/401 (2013.01);
Abstract

Management information is provided to control a storage including storage-areas so that each storage-area includes a set of data-areas allocated from each storage-area and each set of data-areas has a data-area size that is a different integer multiple of an access unit of the storage. Logical address information stores information identifying a data-area into which target-data obtained by compressing data has been written, in association with a logical address of the data. Upon reception of the data and the logical address of the data, the apparatus identifies the management information corresponding to a data-area size greater than or equal to a size of the target-data, writes the target-data into an unused data-area of one of the sets of data-areas corresponding to the identified management information, and stores, in the logical address information, information identifying a physical address of the unused data-area in association with the logical address of the data.


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