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:
Jan. 04, 2022
Filed:
May. 26, 2020
Emc Ip Holding Company Llc, Hopkinton, MA (US);
Owen Martin, Hopedale, MA (US);
Vladimir Desyatov, Hollis, NH (US);
Mark D. Moreau, Grafton, MA (US);
Dustin H. Zentz, Northborough, MA (US);
Anoop Raghunathan, Ashland, MA (US);
Sean B. Reilly, Hopedale, MA (US);
EMC IP Holding Company LLC, Hopkinton, MA (US);
Abstract
Techniques for performing data movements may include tracking sets of I/O statistics for a extents, wherein each of the sets of I/O statistics characterizes I/O operations directed to a corresponding one of the extents having data stored on a first storage tier of first non-volatile storage devices; determining, in accordance with the sets of I/O statistics, a list that includes one or more of the extents qualified for promotion from the first storage tier to a second storage tier, wherein the second storage tier includes second non-volatile storage devices have a higher performance ranking that the first non-volatile storage devices of the first storage tier; selecting, from the list, a first extent to be promoted from the first storage tier to the second storage tier; and performing first processing that promotes only cached data of the first extent from the first storage tier to the second storage tier.