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.:

US 10592132 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 17, 2020

Filed:

Dec. 18, 2017
Applicant:

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

Inventors:

Andrew D. Baptist, Mt. Pleasant, WI (US);

Greg R. Dhuse, Chicago, IL (US);

Ravi V. Khadiwala, Bartlett, IL (US);

Jason K. Resch, Chicago, IL (US);

Wesley B. Leggette, Chicago, IL (US);

Trevor J. Vossberg, Chicago, IL (US);

S. Christopher Gladwin, Chicago, IL (US);

Assignee:

PURE STORAGE, INC., Mountain View, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/00 (2006.01); G06F 3/06 (2006.01); H04W 4/24 (2018.01); H03M 13/15 (2006.01); H04M 15/00 (2006.01); H04L 12/14 (2006.01); H03M 13/37 (2006.01); G06F 11/10 (2006.01); H04L 29/08 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0619 (2013.01); G06F 11/1076 (2013.01); H03M 13/151 (2013.01); H03M 13/3761 (2013.01); H04L 12/14 (2013.01); H04M 15/00 (2013.01); H04M 15/41 (2013.01); H04M 15/58 (2013.01); H04M 15/8214 (2013.01); H04W 4/24 (2013.01); G06F 3/067 (2013.01); H03M 13/1515 (2013.01); H04L 67/1097 (2013.01);
Abstract

A method begins by sending a set of read requests to a first set of storage units of the DSN. The method continues by sending a set of read foreign requests to a second set of storage units of the DSN. The method continues by receiving favorable responses to the set of read requests. When a favorable response is received regarding the read foreign request, the method continues by determining whether an encoded data slice (EDS) contained in the favorable response is needed to obtain a decode threshold number of EDSs. When the EDS is needed, the method continues by including the EDSs contained in the favorable response regarding the read foreign request with other EDSs received in the favorable responses to the set of read requests to produce the decode threshold number of EDSs. The method continues by decoding the threshold number of EDSs to recover the data segment.


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