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:
Oct. 13, 2015
Filed:
Oct. 31, 2011
Michael T. Benhase, Tucson, AZ (US);
Evangelos S. Eleftheriou, Rueschlikon, CH;
Lokesh M. Gupta, Tucson, AZ (US);
Robert Haas, Adliswil, CH;
Xiao-yu HU, Horgen, CH;
Matthew J. Kalos, Tuscon, AZ (US);
Ioannis Koltsidas, Zurich, CH;
Roman A. Pletka, Uster, CH;
Michael T. Benhase, Tucson, AZ (US);
Evangelos S. Eleftheriou, Rueschlikon, CH;
Lokesh M. Gupta, Tucson, AZ (US);
Robert Haas, Adliswil, CH;
Xiao-Yu Hu, Horgen, CH;
Matthew J. Kalos, Tuscon, AZ (US);
Ioannis Koltsidas, Zurich, CH;
Roman A. Pletka, Uster, CH;
INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US);
Abstract
Space of a data storage memory of a data storage memory system is reclaimed by determining heat metrics of data stored in the data storage memory; determining relocation metrics related to relocation of the data within the data storage memory; determining utility metrics of the data relating the heat metrics to the relocation metrics for the data; and making the data whose utility metric fails a utility metric threshold, available for space reclamation. Thus, data that otherwise may be evicted or demoted, but that meets or exceeds the utility metric threshold, is exempted from space reclamation and is instead maintained in the data storage memory.