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:
May. 26, 2015
Filed:
Aug. 12, 2013
Using logical block addresses with generation numbers as data fingerprints for network deduplication
Netapp, Inc., Sunnyvale, CA (US);
Michael N. Condict, Lexington, MA (US);
Steven R. Kleiman, Los Altos, CA (US);
NetApp, Inc., Sunnyvale, CA (US);
Abstract
The technique introduced here involves using a block address and a corresponding generation number as a 'fingerprint' to uniquely identify a sequence of data within a given storage domain. Each block address has an associated generation number which indicates the number of times that data at that block address has been modified. This technique can be employed, for example, to determine whether a given storage server already has the data, and to avoid sending the data to that storage server over a network if it already has the data. It can also be employed to maintain cache coherency among multiple storage nodes.