US 12,124,712 B2
Storage system
Naoya Okada, Tokyo (JP); Kentaro Shimada, Tokyo (JP); Yuki Kotake, Tokyo (JP); and Yukiyoshi Takamura, Tokyo (JP)
Assigned to Hitachi, Ltd., Tokyo (JP)
Filed by Hitachi, Ltd., Tokyo (JP)
Filed on Mar. 7, 2023, as Appl. No. 18/179,563.
Claims priority of application No. 2022-137068 (JP), filed on Aug. 30, 2022.
Prior Publication US 2024/0069761 A1, Feb. 29, 2024
Int. Cl. G06F 3/06 (2006.01)
CPC G06F 3/0625 (2013.01) [G06F 3/0655 (2013.01); G06F 3/0679 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A power control method in a storage system, wherein
the storage system holds power management information for managing power consumption of an operating mounted device of the storage system, and definition information for defining a relationship between power states and power consumption of a plurality of storage drives, and
the power control method comprises:
determining a power budget that can be supplied to the plurality of storage drives, based on the power management information according to a change in a configuration of the storage system;
determining a power state of each of the plurality of storage drives based on the power budget and the definition information;
managing a relationship between the power states and performance; and
setting, based on the power management information, the plurality of storage drives to a power state that is within the power budget and closest to a prespecified required performance.