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:
Jul. 19, 2016
Filed:
Jan. 31, 2013
International Business Machines Corporation, Armonk, NY (US);
Matthew J. Anglin, Tucson, AZ (US);
David M. Cannon, Tucson, AZ (US);
Avishai H. Hochberg, San Jose, CA (US);
Mark L. Yakushev, San Jose, CA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
For restoring deduplicated data, a method maintains a chunk index on a client computing system coupled to a client data store. The chunk index tracks chunks within files remaining on the client data store after storage of the files to a deduplicated server data store coupled to a server computing system. The method determines whether a valid entry for a first chunk exists in the chunk index. In addition, the method retrieves the first chunk from the server data store responsive to determining the valid entry for the first chunk does not exist in the chunk index. The method further retrieves the first chunk from the client data store specified in the valid entry of the chunk index responsive to determining that the valid entry exists in the chunk index and the first chunk resides in a first file at a first offset.