Method and cloud system for realizing virtual machine migration

Abstract

The invention discloses a method and a cloud system for realizing virtual machine migration. The method comprises the following steps that a sharing storage server creates a sharing content for storing a reference mirror image and an increment mirror image, a physical machine is adopted for mounting, and the physical machine copies the reference mirror image of a virtual machine to be migrated from the sharing content during the migration of the virtual machine; a source physical machine selects a target physical machine and sends pre-migration request information to the target physical machine; the target physical machine judges whether the virtual machine migration is allowed or not; when the target physical machine allows the virtual machine migration, the source physical machine monitors local internal memory data change, and a circulation copying mode is adopted for migrating the virtual machine to the target physical machine; the target physical machine starts the virtual machine and monitors whether the virtual machine normally operates or not; when the virtual machine normally operates, the virtual machine migration is successful, otherwise, the virtual machine migration is failed, and the operation of the virtual machine is recovered at the source physical machine. The embodiment of the invention has the advantages that the virtual machine migration process can be fast completed on the premise of not influencing the use of users, and in addition, the migration success rate is high.

Description

Technical field [0001] The present invention relates to the field of computer technology, in particular to a method and cloud system for implementing virtual machine migration. Background technique [0002] Cloud computing is grid computing (Grid Computing), distributed computing (Distributed Computing), parallel computing (Parallel Computing), utility computing (Utility Computing), network storage (Network Storage Technologies), virtualization (Virtualization), load balancing ( Load Balance) and other traditional computer technology and network technology development integration products. It aims to integrate multiple relatively low-cost computing entities into a perfect system with powerful computing capabilities through the network. Cloud computing centralizes all computing resources and is automatically managed by software without human involvement. Enterprises only need to customize the corresponding services. The cloud service provider or cloud provides the required infra...

AI Technical Summary

Problems solved by technology

[0005] The existing technology mainly has the following problems: due to the static migration mode, on the one hand, it affects the use of users, that is, the user must first shut down the virtual machine on the source physical machine; on the other hand, in the cloud system, if the virtual machine needs to be migrated multiple times, the The virtual machine files must be copied repeatedly, because the size of the virtual machine files is at least 4G (generally configured as 10G), and repeated copying usually takes a long time; in addition, the static migration mode is essentially simple copying, and the success rate of virtual machine migration is relatively Low

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