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:
Jun. 15, 2021
Filed:
Oct. 17, 2016
Vmware, Inc., Palo Alto, CA (US);
Jingliang Shang, Beijing, CN;
Kecheng Lu, Beijing, CN;
VMWARE, INC., Palo Alto, CA (US);
Abstract
A method for a secondary host to support continuous availability for an application on a primary virtual machine on a primary host is disclosed. The method includes the secondary host creating a secondary virtual machine that is identical to the primary virtual machine, the secondary host receiving activities of the primary virtual machine from the primary host, the secondary host buffering the activities, and the secondary host determining if the buffered activities are safe to replay. When the buffered activities are determined to be safe to replay, the method includes the secondary host replaying the buffered activities to the secondary virtual machine. When the buffered activities are determined to be unsafe to replay, the method includes the secondary host discarding the buffered activities and setting the secondary virtual machine as a new primary virtual machine to take over a service provided by the application.