VIRTUAL MACHINE SYNCHRONIZATION SYSTEM

摘要

A virtual machine synchronization system for continually synchronizing, when an image file in a primary virtual machine is updated, an image file of a standby virtual machine with a difference from the image file before an update. A representative embodiment of the present invention includes: a management server; a primary agent which acquires a difference when an image file of a primary virtual machine is updated, and transmits the difference to the management server; and a standby agent which acquires, from the management server, a difference to be synchronized with an image file of a standby virtual machine, and synchronizes with the image file of the standby virtual machine. When the difference is received from the primary agent, the management server registers the difference in a primary machine condition table, and when a request for the difference to be synchronized with the image file of the standby virtual machine is received from the standby agent, the management server acquires the difference which is recorded in the primary machine condition table and transmits the difference to the standby agent.

主权项

1. A virtual machine synchronization system for synchronizing a content of an image file of a first virtual machine operating in a first hypervisor with an image file of a second virtual machine operating as a standby machine of the first virtual machine on a second hypervisor; comprising:
a management server which is connectable to the first hypervisor and the second hypervisor via a network; a first monitoring part which operates in the first hypervisor, and when the image file of the first virtual machine is updated, which acquires a difference from the image file before an update and transmits the difference to the management server; and a second monitoring part which operates in the second hypervisor, and which acquires the difference to be synchronized with the image file of the second virtual machine from the management server, and synchronizes the difference with the image file of the second virtual machine,
wherein, when the difference is received from the first monitoring part, the management server registers the difference in a first recording part, and when a request for the difference to be synchronized with the image file of the second virtual machine is received from the second monitoring part, the difference recorded in the first recording part is acquired and transmitted to the second monitoring part.