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:
May. 21, 2019
Filed:
Dec. 19, 2016
Emc Ip Holding Company Llc, Hopkinton, MA (US);
Jibing Dong, Beijing, CN;
Huibing Xiao, Beijing, CN;
Jian Gao, Beijing, CN;
Geng Han, Beijing, CN;
Hongpo Gao, Beijing, CN;
EMC IP Holding Company LLC, Hopkinton, MA (US);
Abstract
Embodiments of the present disclosure provide methods and apparatuses for controlling data reading from a storage system. The storage system includes a plurality of storage devices and a backup of the data is stored in each of the plurality of storage devices. A method comprises: receiving a read request for reading data from the storage system; determining, from the plurality of storage devices, a target storage device for processing the read request according to the number of outstanding read requests and the number of completed read requests recorded for each storage device; and sending the read request to the target storage device. The methods or apparatuses according to the embodiments of the present disclosure can reduce I/O response time and improve I/O performance.