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. 31, 2019
Filed:
Jul. 31, 2017
Emc Ip Holding Company Llc, Hopkinton, MA (US);
Ivan Basov, Brookline, MA (US);
Ahsan Rashid, Edison, NJ (US);
Michal Marko, Fanwood, NJ (US);
Walter Forrester, Berkeley Heights, NJ (US);
EMC IP Holding Company LLC, Hopkinton, MA (US);
Abstract
Methods and apparatus are provided for reporting space savings due to data reduction in storage systems. An exemplary method comprises establishing a leaf pointer for a plurality of allocation units of data in a storage system; for at least a first allocation unit of data matching a second allocation unit of data, replacing the leaf pointer for the first allocation unit with a deduplication pointer to the leaf pointer of the second allocation unit; determining a total number of pointers as a sum of a number of the leaf pointers and a number of the deduplication pointers; determining a difference between the total number of pointers and the number of leaf pointers; and providing a data reduction attributed to deduplication based on the difference. The allocation units of data are optionally also compressed. Data reduction attributed to the compression can optionally be determined independent of the data reduction attributed to the deduplication.