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. 02, 2018
Filed:
Sep. 29, 2016
Emc Ip Holding Company Llc, Hopkinton, MA (US);
Binhua Lu, Shanghai, CN;
Dazhi Dong, Shanghai, CN;
Chen Zhang, Shanghai, CN;
Chaoming Liu, Suzhou, CN;
Peter Wang, Shanghai, CN;
Norman Speciner, Medway, MA (US);
EMC IP Holding Company LLC, Hopkinton, MA (US);
Abstract
A data storage system includes storage processors that execute respective datapath components and management components. The datapath components maintain logical storage objects being the target of the storage I/O commands and for which underlying data is stored on an array of storage devices. The management components operate in an active-standby fashion in which (1) the management components maintain respective separate copies of a management database storing information about the logical storage objects, (2) an active management component serves external requests from a storage administrator by accessing its copy of the management database, and (3) a standby management component responds to non-availability of the first management component by becoming the active management component and serving subsequent external requests from the storage administrator by accessing its copy of the management database. Failover speed is increased due to the standby management component maintaining a current copy of the management database.