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:
Aug. 15, 2017
Filed:
Dec. 17, 2014
Emc Corporation, Hopkinton, MA (US);
Ruiyong Jia, Beijing, CN;
Lei Xue, Beijing, CN;
Long Zhang, Beijing, CN;
Jian Gao, Beijing, CN;
Peng Xie, Beijing, CN;
Huibing Xiao, Beijing, CN;
Zhipeng Hu, Beijing, CN;
EMC IP Holding Company, LLC, Hopkinton, MA (US);
Abstract
Embodiments of the present disclosure relate to methods and apparatuses for data copy avoidance where after a data access request is received from the first storage node, what is sent by a second storage node to the first storage node is not an address of a second storage space in a second mirrored cache, but an address of a first storage space in a first cache corresponding to the second storage space. In this way, data access may be implemented directly in the first cache on the first storage node, and can reduce data communication across different storage nodes, eliminate potential system performance bottlenecks, and enhance data access performance.