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:
Nov. 05, 2013
Filed:
Dec. 29, 2010
Eugene Ortenberg, Falls Church, VA (US);
Bradford B. Glade, Harvard, MA (US);
Dale Hagglund, Edmonton, CA;
Benjamin Yoder, Westborough, MA (US);
David Meiri, Cambridge, MA (US);
Dan Arnon, Somerville, MA (US);
Dharmesh Thakkar, Northborough, MA (US);
Eugene Ortenberg, Falls Church, VA (US);
Bradford B. Glade, Harvard, MA (US);
Dale Hagglund, Edmonton, CA;
Benjamin Yoder, Westborough, MA (US);
David Meiri, Cambridge, MA (US);
Dan Arnon, Somerville, MA (US);
Dharmesh Thakkar, Northborough, MA (US);
EMC Corporation, Hopkinton, MA (US);
Abstract
A system for managing distributed storage includes a collection of one or more compute sites that are connected and that perform a joint computation. A witness node is connected to the one or more compute sites. A membership service allows a change in collection membership, in response to a failure, to continue the joint computation without causing data inconsistency or corruption. If the membership service is unable to reach a decision on the change in collection membership in response to the failure, the witness node controls the decision on the change in collection membership to continue the joint computation. A distributed storage system provided by the system described herein may advantageously meet consistency guarantees and maximize data access even when individual compute sites and/or their interconnects fail.