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. 27, 2026
Filed:
Apr. 27, 2023
Dell Products L.p., Round Rock, TX (US);
Charles William Kaufman, Redmond, WA (US);
Naizhong Chiu, Newton, MA (US);
Jamie Pocas, Milford, MA (US);
Saoni Mukherjee, Westborough, MA (US);
Radia Joy Perlman, Redmond, WA (US);
James Mccoy, Holliston, MA (US);
Ashok Tamilarasan, Shrewsbury, MA (US);
Dell Products L.P., Round Rock, TX (US);
Abstract
A method for operating a storage array includes: generating a per-chunk key and a deduplication key for a data chunk based on a hash value, wherein the per-chunk key is stored in a metadata file; obtaining a per-volume key for a volume of the storage array; encrypting a metadata folder associated with the volume to generate an encrypted metadata folder using the per-volume key, in which the encrypted metadata folder comprises at least the metadata file; compressing the data chunk to generate a compressed data chunk (CDC); encrypting the CDC to generate an encrypted compressed data chunk (ECDC) using the per-chunk key, in which the ECDC is stored in the volume; obtaining storage location information of the ECDC; updating a hash value lookup table based on the storage location information; and initiating notification of a user of a client about completion of a write request.