Method for constructing wide area network virtual platform

Abstract

The invention provides a method for constructing a wide area network virtual platform. The method comprises the following steps: a plurality of data centers are virtualized into a logic local area network, wherein a virtualization platform is deployed in each data center; a template mirror image in a file used for deploying a virtual machine, a user privately-owned mirror image and a virtual machine configuration file are established, wherein static configuration files for an operating system and a user request service are installed in the template mirror image; the user privately-owned mirror image contains a privately-owned file stored by a user and modified system configuration information; the virtual machine configuration file contains parameters of a user privately-owned mirror image virtual machine. The method for constructing the wide area network virtual platform further comprises the following step that the template mirror image, the user privately-owned mirror image and the virtual machine configuration file are deployed in the multiple data centers in the logic local area network. The method for constructing the wide area network virtual platform saves storage resources, improves virtual machine deployment efficiency at the same time, and realizes virtual machine transferring across a wide area network.

Description

technical field [0001] The invention relates to virtualization technology in cloud computing, in particular to a method for constructing a wide area network virtual platform. Background technique [0002] In the cloud computing environment, the user's applications are complex and diverse, and the locations where the requirements are generated are also different. In addition, different users have different requirements on the service quality of applications. The cloud data center supporting this complex application scenario usually consists of multiple data centers in different geographical locations. These data centers are widely distributed in the wide area network and are private, providing external services in the form of computing, storage and other resources. For this reason, cloud data center management is faced with the difficulty of managing multiple data centers across regions at the same time, and the traditional data center management model has been unable to mee...

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Problems solved by technology

[0004] However, if the traditional method of deploying data centers based on virtualization technology is directly used to deploy multiple data centers across a wide area network, there may be the following problems: (1) Due to the strong privacy of data center resources and their geographical location restrictions , so it is difficult to realize functions such as virtual machine migration across data centers, and off-site storage and startup of virtual machine image data; (2) when deploying services, it is necessary to copy virtual machine images (each virtual machine image stores system files necessary for business operation) and user private data), due to the large image file, the copy leads to a long deployment time; (3) files in multiple virtual machine images have a common part, and storage resources are wasted due to the storage of a large amount of redundant data; (4) In order to meet different user needs and reserve sufficient storage space for virtual machine images, some users may have idle storage space, reducing the utilization of storage resources

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