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. 26, 2021
Filed:
May. 15, 2019
Emc Ip Holding Company Llc, Hopkinton, MA (US);
Kurumurthy Gokam, Bangalore, IN;
Venkatesh Doddamane Nagaraj, Bangalore, IN;
EMC IP Holding Company LLC, Hopkinton, MA (US);
Abstract
An apparatus comprises a host device configured to communicate over a network with a storage system. The host device comprises a plurality of communication adapters, each of which comprises a corresponding plurality of input-output (IO) submission queues, and a multi-path input-output (MPIO) driver configured to obtain an IO operation that targets a given logical volume of the storage system and to identify a plurality of paths between the host device and the given logical volume. Each identified path comprises a communication adapter and a corresponding IO submission queue of that communication adapter. An IO load weight and a queue depth weight are determined for each identified path. An adaptive weight for each identified path is determined as a function of the determined IO load weight and the determined queue depth weight for that identified path and a target path is selected from the identified paths based at least in part on the determined adaptive weights.