Patent 9134914 was granted and assigned to EMC on September, 2015 by the United States Patent and Trademark Office.
A method, system, and computer program product comprising determining if a file is greater than a predetermined size, based on a positive determination that the file is greater than the predetermined size, searching for an associated signature file for the file, and if the associated signature file is found for the file, perfecting some or all the signatures from the associated signature for the file to the cache.