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:
Aug. 22, 2023
Filed:
Aug. 17, 2021
Hitachi, Ltd., Tokyo, JP;
HITACHI, LTD., Tokyo, JP;
Abstract
A cluster system has nodes connected by a first network, including a master node, a first node performing an IO request with respect to a first volume of a storage device capable of including a plurality of volumes through a second network, and a second node taking over processing of the first node at the time of a failure of the first node. When a failure of the first network occurs in the first node, the master node transmits a connection release instruction through the second network. When the connection release instruction is received, the storage device releases the connection between the first node and the first volume, and updates connection state management information for managing such a connection state. The first node acquires the connection state to be managed through the second network, and executes post-processing relevant to the first volume that is associated with the connection release instruction.