US 12,393,247 B2
Multi-node system and power supply control method
Tsubasa Matsushita, Tokyo (JP)
Assigned to Hitachi Vantara, Ltd., Yokohama (JP)
Filed by Hitachi, Ltd., Tokyo (JP)
Filed on Sep. 7, 2023, as Appl. No. 18/462,829.
Claims priority of application No. 2022-212295 (JP), filed on Dec. 28, 2022.
Prior Publication US 2024/0219986 A1, Jul. 4, 2024
Int. Cl. G06F 11/30 (2006.01); G06F 1/30 (2006.01); G06F 1/3225 (2019.01)
CPC G06F 1/305 (2013.01) [G06F 1/3225 (2013.01); G06F 1/30 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A multi-node system comprising:
a plurality of nodes each including at least one controller,
the controller including a processor, a power supply control device configured to control supply of power to the controller, a volatile memory, and a nonvolatile memory,
wherein the processor detects whether or not any one of the nodes is inactive due to a power outage,
the processor determines whether or not operation of the multi-node system can be continued, based on comparing a performance of processing by the multi-node system to a predetermined performance level,
upon determination that the operation of the multi-node system cannot be continued, the processor saves necessary data held in the volatile memory into the nonvolatile memory,
the power supply control device restarts the processor, and,
when the node in the power outage has recovered therefrom following the restart, the multi-node system is caused to start processing.