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.:
Date of Patent:
May. 19, 2020
Filed:
Feb. 26, 2018
Applicant:
Hitachi, Ltd., Tokyo, JP;
Inventors:
Mitsuo Hayasaka, Tokyo, JP;
Abhishek Johri, Tokyo, JP;
Assignee:
HITACHI, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/06 (2006.01); G06F 11/20 (2006.01); H04L 29/08 (2006.01);
U.S. Cl.
CPC ...
G06F 3/065 (2013.01); G06F 3/067 (2013.01); G06F 3/0614 (2013.01); G06F 11/2069 (2013.01); G06F 11/2082 (2013.01); H04L 67/1095 (2013.01); H04L 67/1097 (2013.01); G06F 2201/855 (2013.01);
Abstract
In a computer systemthat includes multiple nodescapable of storing data, and a management computerthat manages the nodes, a first volume of a first node and a second volume of a second nodeconstitute an HA (High Availability) pair for managing identical data in a duplicated manner. the CPUof the second node is configured to, When the first node becomes offline, write data that is to be written into the second volume of the second node thereafter is written into the second volume and into a third volume of a third node that is different from the first node and the second node.