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:
Nov. 23, 2021

Filed:

May. 14, 2019
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Praveen Viraraghavan, Chicago, IL (US);

Ethan Wozniak, Cook, IL (US);

Amit Lamba, Buffalo Grove, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/06 (2006.01); G06F 11/10 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0652 (2013.01); G06F 3/0604 (2013.01); G06F 3/067 (2013.01); G06F 3/0644 (2013.01); G06F 3/0659 (2013.01); G06F 11/1076 (2013.01); G06F 2212/1044 (2013.01);
Abstract

A computer-implemented method includes receiving a plurality of storage requests to store a plurality of objects in a dispersed storage network. The computer-implemented method further includes transforming each object in the plurality of objects into a set of error encoded slices. The computer-implemented method further includes dispersing each error encoded slice in each set of error encoded slices to a memory zone of a distinct storage unit. The computer-implemented method further includes co-locating two or more error encoded slices in a common memory zone of a storage unit based, at least in part, on an expiry time associated with the two or more encoded slices. The computer-implemented method further includes logically deleting the common memory zone of the storage unit after all error encoded slices stored in the common memory zone have expired.


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