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:
Feb. 23, 2010
Filed:
Aug. 16, 2007
Jon A. Lind, Beaverton, OR (US);
Dale M. Mcinnis, Aurora, CA;
Steven R. Pearson, Portland, OR (US);
Steve Raspudic, Mississauga, CA;
Vincent Kulandaisamy, Portland, OR (US);
Yuke Zhuge, Portland, OR (US);
Jon A. Lind, Beaverton, OR (US);
Dale M. McInnis, Aurora, CA;
Steven R. Pearson, Portland, OR (US);
Steve Raspudic, Mississauga, CA;
Vincent Kulandaisamy, Portland, OR (US);
Yuke Zhuge, Portland, OR (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method, system, and computer program product for reducing likelihood of data loss during performance of failovers in a high-availability system comprising a primary system and a standby system are provided. The method, system, and computer program product provide for defining a halt duration, periodically determining a halt end time, halting data modifications at the primary system responsive to failure of data replication to the standby system, resuming data modifications at the primary system responsive to a last determined halt end time being reached or data replication to the standby system resuming, and responsive to the primary system failing prior to a previously determined halt end time, determining that a failover to the standby system will not result in data loss on the standby system with respect to the primary system.