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:
Feb. 21, 2017

Filed:

Jun. 16, 2014
Applicant:

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

Inventors:

Oliver Benke, Stuttgart, DE;

Jan Kunigk, Nufringen, DE;

Stefan Letz, Markranstaedt, DE;

Joerg-Stephan Vogt, Holzgerlingen, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 17/30 (2006.01); G06F 3/06 (2006.01); G06F 11/14 (2006.01);
U.S. Cl.
CPC ...
G06F 3/06 (2013.01); G06F 3/065 (2013.01); G06F 3/067 (2013.01); G06F 3/0619 (2013.01); G06F 3/0652 (2013.01); G06F 11/1479 (2013.01); G06F 17/30088 (2013.01); G06F 17/30212 (2013.01);
Abstract

A method of dataset replica migration is described. An application session may start on a first compute node. A first replica of the dataset to be accessed by the application session may be located on a second compute node. A second replica of the dataset is created to be co-located with the first compute node. A first data block of the dataset may be requested by the application session. The first data block of the first replica of the dataset may be read from the second compute node, when the second replica does not have a copy of the first data block stored in the second replica. The retrieved first data block may be copied to the second replica. The first data block may be read from the second replica, when the first data block is requested by the application session and is contained in the second replica.


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