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. 31, 2013
Filed:
Sep. 24, 2010
Benjamin Isherwood, Tewksbury, MA (US);
Donald P. Pannese, Westford, MA (US);
Richard Rogers, Stoughton, MA (US);
Vitaly Zolutusky, Arlington, MA (US);
Benjamin Isherwood, Tewksbury, MA (US);
Donald P. Pannese, Westford, MA (US);
Richard Rogers, Stoughton, MA (US);
Vitaly Zolutusky, Arlington, MA (US);
Hitachi Data Systems Corporation, Santa Clara, CA (US);
Abstract
A redundant array of independent nodes are networked together. Each node executes an instance of an application that provides object-based storage. The nodes are grouped into a plurality of systems each having multiple nodes. An object recovery method comprises: receiving, by a first system of the plurality of systems from a client application, a read request for an object, the object having been replicated to/from at least one second system among the plurality of systems; if the object of the read request is available in the first system, returning by the first system the object of the read request to the client application; and if the object of the read request is not available in the first system, performing a read from replica process by the first system to access a replica of the object from a second system among the plurality of systems and using the replica of the object to return the object of the read request to the client application.