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:
Dec. 11, 2018
Filed:
Oct. 31, 2011
Kevin J. Ash, Tucson, AZ (US);
Michael T. Benhase, Tucson, AZ (US);
Stephen L. Blinick, Tucson, AZ (US);
Evangelos S. Eleftheriou, Rueschlikon, CH;
Lokesh M. Gupta, Tucson, AZ (US);
Robert Haas, Adliswil, CH;
Xiao-yu HU, Horgen, CH;
Ioannis Koltsidas, Zurich, CH;
Roman A. Pletka, Uster, CH;
Kevin J. Ash, Tucson, AZ (US);
Michael T. Benhase, Tucson, AZ (US);
Stephen L. Blinick, Tucson, AZ (US);
Evangelos S. Eleftheriou, Rueschlikon, CH;
Lokesh M. Gupta, Tucson, AZ (US);
Robert Haas, Adliswil, CH;
Xiao-Yu Hu, Horgen, CH;
Ioannis Koltsidas, Zurich, CH;
Roman A. Pletka, Uster, CH;
INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US);
Abstract
The population of data to be admitted into secondary data storage cache of a data storage system is controlled by determining heat metrics of data of the data storage system. If candidate data is submitted for admission into the secondary cache, data is selected to tentatively be evicted from the secondary cache; candidate data provided to the secondary data storage cache is rejected if its heat metric is less than the heat metric of the tentatively evicted data; and candidate data submitted for admission to the secondary data storage cache is admitted if its heat metric is equal to or greater than the heat metric of the tentatively evicted data.