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:
Apr. 26, 2022
Filed:
May. 04, 2020
Emc Ip Holding Company Llc, Hopkinton, MA (US);
Steven Chalmer, Redwood City, CA (US);
Jonathan Krasner, Coventry, RI (US);
Chakib Ouarraoui, Watertown, MA (US);
Serge J. Pirotte, Coventry, RI (US);
EMC IP Holding Company LLC, Hopkinton, MA (US);
Abstract
Techniques for data deduplication may include: receiving write operations that write first data; partitioning the first data into a plurality of data portions; generating, using a first hash function, a plurality of data deduplication hash values for the plurality of data portions, wherein a first data deduplication hash value of the plurality of data deduplication hash values is produced by said generating for a first of the plurality of data portions; performing first processing using a Bloom filter to determine whether the first data deduplication hash value has a corresponding first entry in a data store of deduplication hash values; and responsive to the first processing determining the first data deduplication hash value does not have the corresponding first entry in the data store of deduplication hash values, performing second processing, said second processing including adding the corresponding first entry in the data store of deduplication hash values.