METHOD AND SYSTEM FOR MIGRATION OF VIRTUAL MACHINES AND VIRTUAL APPLICATIONS BETWEEN CLOUD-COMPUTING FACILITIES

摘要

The current document discloses methods and systems for extending an internal network within a first cloud-computing facility to a second cloud-computing facility and deploying a virtual machine or virtual application previously running on a first cloud-computing facility within the context of the extended internal network in the second cloud-computing facility. The currently disclosed methods and systems which provide internal-network extension and redeployment of virtual machines and virtual applications, referred to as “stretch deploy,” allow a virtual machine or virtual application formerly executing on a first cloud-computing facility to resume execution on a second cloud-computing facility, using the computational and storage facilities of the second cloud-computing facility but depending on network support from the first cloud-computing facility, without changing IP and local network addresses and the network connectivity, based on those addresses, between the virtual machines and virtual applications and other local and remote computational entities with which the virtual machines and virtual applications communicate.

主权项

1. A cloud-connector subsystem that provides a stretch-deploy operation for moving one or more virtual machines and virtual applications between cloud-computing facilities, the cloud-connector subsystem comprising:
cloud-connector nodes associated with each of a source and a target cloud-computing facility; and a cloud-connector server that includes one or more processors, one or more memories, one or more data-storage devices, and computer instructions that, when executed on the one or more processors, control the cloud-connector server to provide, in cooperation with the cloud-connector nodes, a stretch-deploy operation that
extends a first local virtual network within the source cloud-computing facility to the target cloud-computing facility, forming an extended local virtual network; andmoves one or more virtual machines and virtual applications from executing on the source cloud-computing facility and communicating with other computational entities through the local virtual network using one or more network addresses to executing on the target cloud-computing facility and communicating with other computational entities through the extended local virtual network using the same one or more network addresses.