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:
Jun. 06, 2023

Filed:

Jan. 07, 2021
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventor:

Daisuke Matsunaga, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/06 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0656 (2013.01); G06F 3/061 (2013.01); G06F 3/0679 (2013.01);
Abstract

An information processing apparatus which implements a rebuild process for restoring a mirroring state even when each of a plurality of connected external storage devices is configured to input and output data to and from a host controller by accessing a storage area of the host controller. When the host controller has issued an instruction to carry out the rebuild process in which data in one of the external storage devices is copied to the other one, one of the external storage devices which is about to write data to the storage area of the host controller for the rebuild process is caused to write the data to the buffer provided in the bridge device, and the other one which is about to read data from the storage area of the host controller for the rebuild process is caused to read the data from the buffer.


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