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:
Jun. 27, 2017
Filed:
Jun. 17, 2014
Western Digital Technologies, Inc., Irvine, CA (US);
George B. Hefner, Rancho Santa Margarita, CA (US);
David N. Steffen, Irvine, CA (US);
Western Digital Technologies, Inc., Irvine, CA (US);
Abstract
Memory lifetime extension for a data storage system having a first memory and a second memory includes determining a plurality of age-adjusted access values for a data block stored in the first memory based on access of the data block and at least one aging weight, determining an overall access value for the data block based on the plurality of age-adjusted access values, and determining if at least a portion of the data block should be stored in a cache memory of the second memory based on the overall access value. The at least one aging weight can be dynamically adjusted based on an expected remaining practical usable life of the second memory.