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:
Aug. 19, 2014
Filed:
Jul. 19, 2011
Thomas D. Bissett, Shirley, MA (US);
Paul A. Leveille, Grafton, MA (US);
Ted M. Lin, Ayer, MA (US);
Jerry Melnick, Wayland, MA (US);
Angel L. Pagan, Holden, MA (US);
Glenn A. Tremblay, Del Mar, CA (US);
Thomas D. Bissett, Shirley, MA (US);
Paul A. Leveille, Grafton, MA (US);
Ted M. Lin, Ayer, MA (US);
Jerry Melnick, Wayland, MA (US);
Angel L. Pagan, Holden, MA (US);
Glenn A. Tremblay, Del Mar, CA (US);
Marathon Technologies Corporation, Littleton, MA (US);
Abstract
A computer system configured to provide fault tolerance includes a first host system and a second host system. The first host system is programmed to monitor a number of portions of memory of the first host system that have been modified by a guest running on the first host system and, upon determining that the number of portions exceeds a threshold level, determine that a checkpoint needs to be created. Upon determining that the checkpoint needs to be created, operation of the guest is paused and checkpoint data is generated. After generating the checkpoint data, operation of the guest is resumed while the checkpoint data is transmitted to the second host system.