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 9003119 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 07, 2015

Filed:

Jan. 09, 2012
Applicants:

Motohiro Sakai, Kawasaki, JP;

Akihito Kobayashi, Kawasaki, JP;

Inventors:

Motohiro Sakai, Kawasaki, JP;

Akihito Kobayashi, Kawasaki, JP;

Assignee:

Fujitsu Limited, Kawasaki, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G06F 3/06 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0611 (2013.01); G06F 3/0689 (2013.01); G06F 3/0659 (2013.01);
Abstract

In a storage apparatus, in the case where a data block to be written to a storage medium is a zero data block containing only zero data, a zero data information memory stores zero data identification information indicating that the data block is a zero data block. A control apparatus receives a data block from an access requesting apparatus in association with a write request issued by the access requesting apparatus for writing the data block a specified number of times to a predetermined storage area of the storage medium, and when determining that the data block is a zero data block containing only zero data, sets zero data identification information in the zero data information memory, and when completing the setting of the zero data identification information, sends the access requesting apparatus a completion notice of the writing to the storage medium.


Find Patent Forward Citations

Sakai, Motohiro. (2015). Control apparatus and method, and storage apparatus (U.S. Patent No. 9003119). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9003119

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