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:
Dec. 01, 2020
Filed:
Oct. 18, 2017
Emc Ip Holding Company, Llc, Hopkinton, MA (US);
Jibing Dong, Beijing, CN;
Jian Gao, Beijing, CN;
Jamin Kang, Beijing, CN;
Hongpo Gao, Beijing, CN;
Xinlei Xu, Beijing, CN;
Naizhong Chiu, Newton, MA (US);
Ronald D. Proulx, Boxborough, MA (US);
Shaoqin Gong, Beijing, CN;
EMC IP Holding Company, LLC, Hopkinton, MA (US);
Abstract
A method, computer program product, and computer system for receiving, by a computing device, an I/O request for data. A number of storage devices of a plurality of storage devices in a Mapped RAID group that will be used to process the I/O request may be determined. It may be determined that each storage device of the number of storage devices in the Mapped RAID group that will be used to process the I/O request lacks a respective threshold number of credits to process the I/O request. It may be determined whether a cache associated with the Mapped RAID group allows a user I/O queue. If the cache allows the user I/O queue, a user I/O may be placed in the user I/O queue. If the cache does not allow the user I/O queue, the I/O request may be failed.