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.

Date of Patent:
Apr. 23, 2019

Filed:

Apr. 03, 2017
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Lan Ying Shen, Shanghai, CN;

Xiao Yu Wang, Shanghai, CN;

Li Li Yang, Shanghai, CN;

Chen Zhang, Shanghai, CN;

Da Lei Zhang, Shanghai, CN;

Yu Zhou, Shanghai, CN;

Jie Zou, Shanghai, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/46 (2006.01); G06F 9/50 (2006.01); G06F 9/48 (2006.01); G06F 9/52 (2006.01); G06F 9/38 (2018.01); G06F 12/126 (2016.01);
U.S. Cl.
CPC ...
G06F 9/5016 (2013.01); G06F 9/3836 (2013.01); G06F 9/4881 (2013.01); G06F 9/505 (2013.01); G06F 9/5038 (2013.01); G06F 9/52 (2013.01); G06F 12/126 (2013.01);
Abstract

A batch of input/output (I/O) requests, directed to multiple physical domains of storage area network disk (SAN disk), are prioritized for processing based on the workload (pressure) of the target physical domains, and further based on the workload of multiple input/output (I/O) paths available for transmission of the I/O data to or from the physical domains. Requests directed to a physical domain with low pressure (relative to other physical domains to which some of the I/O requests are directed) are queued up and sent to the physical domain on an I/O path having a low workload (relative to other available I/O paths). Requests directed to a physical domain under relatively high pressure are queued up and sent to the physical domain on an I/O path having a relatively higher workload.


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