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:
Mar. 23, 2021
Filed:
Jan. 24, 2019
International Business Machines Corporation, Armonk, NY (US);
Wesley B. Leggette, Chicago, IL (US);
Manish Motwani, Chicago, IL (US);
Brian F. Ober, Lake in the Hills, IL (US);
Jason K. Resch, Chicago, IL (US);
INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US);
Abstract
A method begins when a read expansion condition is met for a set of encoded data slices stored in a set of storage units of a first DSN. The method continues with determining whether a difference between a pillar width number and a read threshold (RT) number is greater than or equal to the RT number. When no, the method continues with retrieving an expansion number of encoded data slices from the set of storage units and sending them to storage units of a second DSN for storage. The method continues by receiving a plurality of read requests for the set of encoded data slices, sending a first group of read requests to a RT number of storage units of the first DSN and sending a second group of requests to a second subset of storage units of the first DSN and to the storage units of the second DSN.