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:
May. 13, 2025

Filed:

Mar. 06, 2023
Applicant:

Hitachi, Ltd., Tokyo, JP;

Inventors:

Kentaro Shimada, Tokyo, JP;

Nobuhiro Yokoi, Tokyo, JP;

Masahiro Tsuruya, Tokyo, JP;

Assignee:

HITACHI VANTARA, LTD., Yokohama, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/10 (2016.01);
U.S. Cl.
CPC ...
G06F 12/10 (2013.01);
Abstract

A protocol chip writes a request from a host apparatus to a shared memory. One of the plurality of processors reads the request from the host apparatus from the shared memory through an address translation unit and writes a response to the request to the shared memory through the address translation unit. The protocol chip reads the response from the shared memory and sends the response to the host apparatus. In the case where a first processor reboots, the first processor performs a reboot process of a first address translation unit but does not perform the reboot process of the shared memory. A second processor reads a first request addressed to the first processor from the host apparatus through a second address translation unit and writes a first response to the first request to the shared memory through the second address translation unit.


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