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. 27, 2018

Filed:

Nov. 13, 2015
Applicant:

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

Inventors:

Charles J. Camp, Sugar Land, TX (US);

Timothy J. Fisher, Cypress, TX (US);

Aaron D. Fry, Richmond, TX (US);

Nikolas Ioannou, Zurich, CH;

Roman A. Pletka, Uster, CH;

Lincoln T. Simmons, Houston, TX (US);

Sasa Tomic, Kilchberg, CH;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/00 (2006.01); G06F 11/14 (2006.01); G06F 3/06 (2006.01);
U.S. Cl.
CPC ...
G06F 11/1469 (2013.01); G06F 3/065 (2013.01); G06F 3/0619 (2013.01); G06F 3/0679 (2013.01); G06F 11/1451 (2013.01); G06F 2201/805 (2013.01); G06F 2201/84 (2013.01); G06F 2201/85 (2013.01);
Abstract

A controller-implemented method, according to one embodiment, includes: restoring a valid snapshot of a LPT from the non-volatile random access memory, examining each journal entry from at least one journal beginning with a most recent one of the journal entries in a most recent one of the at least one journal and working towards an oldest one of the journal entries in an oldest one of the at least one journal, the journal entries corresponding to updates made to one or more entries of the LPT, determining whether a current LPT entry which corresponds to a currently examined journal entry has already been updated, using the currently examined journal entry to update the current LPT entry in response to determining that the current LPT entry has not already been updated, and discarding the currently examined journal entry in response to determining that the current LPT entry has already been updated.


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