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. 10, 2018

Filed:

Mar. 13, 2017
Applicant:

Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;

Inventor:

Jun Kato, Kawasaki, JP;

Assignee:

FUJITSU LIMITED, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/10 (2006.01); G06F 3/06 (2006.01);
U.S. Cl.
CPC ...
G06F 11/1076 (2013.01); G06F 3/064 (2013.01); G06F 3/0619 (2013.01); G06F 3/0689 (2013.01);
Abstract

A control device for a storage apparatus including a first storage device, a second storage device, and a third storage device, the control device includes a memory, and a processor coupled to the memory and configured to store, in the third storage device, first parity data generated based on first data stored in the first storage device and second data stored in the second storage device, store, in the first storage device, third data as update data of the first data, execute reading the first data and the third data from the first storage device and reading the first parity data from the third storage device when garbage collection for the first storage device is performed, and execute generating second parity data based on the read first data, the read third data, and the read first parity data.


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