US 12,032,842 B2
Host device with multi-path layer configured for alignment to storage system local-remote designations
Rimpesh Patel, Bangalore (IN); Amit Pundalik Anchi, Bangalore (IN); and Vinay G. Rao, Bangalore (IN)
Assigned to Dell Products L.P., Round Rock, TX (US)
Filed by Dell Products L.P., Round Rock, TX (US)
Filed on Oct. 10, 2022, as Appl. No. 17/962,599.
Prior Publication US 2024/0118820 A1, Apr. 11, 2024
Int. Cl. G06F 3/06 (2006.01)
CPC G06F 3/0635 (2013.01) [G06F 3/0604 (2013.01); G06F 3/067 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus comprising:
at least one processing device comprising a processor coupled to a memory;
said at least one processing device being configured:
to obtain in a host device information characterizing local-remote designations of respective first and second storage systems, one of which is designated as local and one of which is designated as remote; and
to adjust path selection in a multi-path layer of the host device based at least in part on the obtained information characterizing the local-remote designations of the respective first and second storage systems;
wherein the local-remote designations of the respective first and second storage systems comprise respective storage-side local-remote designations each of which characterizes the respective corresponding storage system as a whole as being either local or remote relative to the host device; and
wherein the storage-side local-remote designations are automatically given priority in the host device over any conflicting host-side local-remote designations that are determined in the host device based at least in part on measured latencies between the host device and respective ones of the first and second storage systems.