公开(公告)号：US20150154081A1

公开(公告)日：2015-06-04

申请号：US14095032

申请日：2013-12-03

Applicant: VMware, Inc.

Inventor： Shrinand Suresh JAVADEKAR ,  Michael NELSON

IPC: G06F11/14

CPC classification number: G06F11/2097 ,  G06F11/1438 ,  G06F11/1484 ,  G06F11/2038

Abstract: A virtualization platform provides fault tolerance for a primary virtual machine by continuously transmitting checkpoint information of the primary virtual machine to a collector process, such as a backup virtual machine. The virtualization platform includes virtual devices configured to keep track of state changes, for example, by using state flags or saving copies of prior state data. The virtualization platform generates incremental checkpoints by querying the virtual devices, which return state data based on whether the virtual devices have changed state since a prior checkpoint operation.

Abstract translation: 虚拟化平台通过将主虚拟机的检查点信息连续传送到诸如备份虚拟机的收集器进程来为主虚拟机提供容错。 虚拟化平台包括被配置为跟踪状态改变的虚拟设备，例如通过使用状态标志或保存先前状态数据的副本。 虚拟化平台通过查询虚拟设备生成增量检查点，虚拟设备根据虚拟设备是否从先前的检查点操作改变状态来返回状态数据。