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:
Oct. 21, 2025
Filed:
Sep. 18, 2023
Hitachi, Ltd., Tokyo, JP;
Mutsumi Hosoya, Tokyo, JP;
Tomohiro Yoshihara, Tokyo, JP;
Yoshinori Ohira, Tokyo, JP;
Norio Shimozono, Tokyo, JP;
HITACHI VANTARA, LTD., Yokohama, JP;
Abstract
A storage system includes a plurality of drive nodes, a plurality of controller nodes controlling data from a host device to the plurality of drive nodes, and a processor that calculates long-term load fluctuation prediction as prediction of load fluctuation over a certain period of time in the future of the plurality of controller nodes based on time-series data of load of the plurality of controller nodes, and calculates an addition/reduction completion target time to complete addition or reduction of an operating controller node out of the plurality of controller nodes based on the long-term load fluctuation prediction and a load threshold value determined from a power performance model representing a relationship between the load and energy efficiency of the plurality of controller nodes.