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:
Mar. 26, 2019
Filed:
May. 17, 2017
Applicant:
Lei Cao, Westford, MA (US);
Inventor:
Lei Cao, Westford, MA (US);
Assignee:
Stratus Technologies, Maynard, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/00 (2006.01); G06F 11/14 (2006.01); G06F 3/06 (2006.01); G06F 9/455 (2018.01);
U.S. Cl.
CPC ...
G06F 11/1471 (2013.01); G06F 3/0604 (2013.01); G06F 3/0631 (2013.01); G06F 3/0683 (2013.01); G06F 9/45558 (2013.01); G06F 2009/45583 (2013.01); G06F 2201/805 (2013.01); G06F 2201/815 (2013.01); G06F 2201/82 (2013.01);
Abstract
A HA computer system is configured to support the operation of an active and a standby virtual machine, and the active virtual machine supports one or more first computer processes and the standby virtual machines supports duplicates of the one or more first computer processes. Each active virtual machine monitors and stores a state of the first computer processes and periodically pauses to only synchronize some of the state of the first computer processes running on the active VM with state associated with the duplicate processes running on the standby VM stored in a first region of virtual memory.