US 12,260,090 B2
Storage network resource management
Tomohiro Kawaguchi, Santa Clara, CA (US)
Assigned to Hitachi, Ltd., Tokyo (JP)
Filed by Hitachi, Ltd., Tokyo (JP)
Filed on Jan. 31, 2023, as Appl. No. 18/104,145.
Prior Publication US 2024/0256137 A1, Aug. 1, 2024
Int. Cl. G06F 3/06 (2006.01)
CPC G06F 3/0613 (2013.01) [G06F 3/065 (2013.01); G06F 3/067 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A method, comprising:
responsive to a request of a volume requiring remote copy:
checking an IO throughput setting of the volume;
determining a network bandwidth based on the IO throughput setting of the volume;
in response to the network bandwidth being equal to or less than total remote copy network resources allocated for existing volumes configured with remote copy and the volume requiring remote copy, establishing a remote copy relationship for the volume in response to the request;
in response to the network bandwidth exceeding the total remote copy network resources allocated for the existing volumes configured with remote copy and the volume requiring remote copy, rejecting the request, wherein the total remote copy network resources is based on a summation of a maximum write throughput of the existing volumes configured with remote copy and the volume requiring remote copy; and
in response to the summation exceeding the total remote copy network resources, internally setting another maximum write throughput for each of the existing volumes that is at least a minimum write throughput.