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:
Mar. 03, 2020
Filed:
Jan. 31, 2018
Applicant:
Emc Ip Holding Company Llc, Hopkinton, MA (US);
Inventors:
Ivan Bassov, Brookline, MA (US);
Ahsan Rashid, Edison, NJ (US);
Assignee:
EMC IP Holding Company, LLC, Hopkinton, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/06 (2006.01); G06F 16/11 (2019.01); G06F 16/174 (2019.01);
U.S. Cl.
CPC ...
G06F 16/1748 (2019.01); G06F 3/0641 (2013.01); G06F 3/0643 (2013.01); G06F 16/128 (2019.01);
Abstract
Techniques for effectively measuring the amount of space saved due to deduplication and selectively turning deduplication off for a filesystem if the savings are too low are provided. The techniques include maintaining both a lower bound count and an upper bound count for block savings due exclusively to deduplication rather than due to snapshots and using an average of the lower and upper bounds to estimate the actual savings due to deduplication in order decide whether to continue operating deduplication or not.