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.

Date of Patent:
May. 20, 2025

Filed:

Oct. 27, 2022
Applicant:

Hewlett Packard Enterprise Development Lp, Houston, TX (US);

Inventors:

David Malcolm Falkinder, Bristol, GB;

Peter Thomas Camble, Bristol, GB;

Richard Phillip Mayo, Bristol, GB;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 21/56 (2013.01);
U.S. Cl.
CPC ...
G06F 21/561 (2013.01); G06F 2221/034 (2013.01);
Abstract

Example implementations relate to deduplication operations in a storage system. An example includes receiving data units of a backup stream to be stored in a deduplication storage system; performing a first matching operation to match the data units against a first container index of a plurality of container indexes, where the plurality of container indexes comprise metadata indicating storage locations of data units previously stored in the persistent storage; calculating a first ratio indicating the amount of deduplication that occurred during the first matching operation against the first container index; and in response to a determination that the first ratio violates a condition with respect to local ratio history data of the first container index, identifying at least one portion of the backup stream as being potentially affected by a ransomware attack.


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