Cross-platform virtual machine online migration method and related components

Abstract

According to the cross-platform virtual machine online migration method disclosed by the invention, an agent program does not need to be installed in the virtual machine, so that the threat to the disk file caused by illegal utilization of the agent program in the virtual machine is avoided, and the security of the disk file is guaranteed; and meanwhile, in the execution process of the cross-platform virtual machine online migration method, the cross-platform virtual machine online migration method firstly reads disk data in the virtual machine to be migrated and writes the disk data into a new platform while the normal operation of the virtual machine is not influenced in the data reading and writing process, so that the virtual machine migration is executed under the condition that the virtual machine is not shut down, and the virtual machine to be migrated is controlled to pause after the disk change data relative to the disk data in the running process of the virtual machine to bemigrated is determined, and the service pause time is equivalent to the write-in time of the disk change data, so that the service pause time of the virtual machine is greatly shortened, and the running continuity of a running service application can be effectively ensured. The invention furthermore provides a cross-platform virtual machine online migration device, equipment, and a readable storage medium, which have the above beneficial effects.

Description

technical field [0001] The present application relates to the technical field of cloud computing management, in particular to a cross-platform virtual machine online migration method, device, equipment and a readable storage medium. Background technique [0002] Now virtualization technology is being widely used. Virtual machine is an important part of virtualization technology. Due to certain business requirements, it is necessary to implement virtual machine migration across different types of platforms. Virtual machine migration refers to the process of migrating a virtual machine from one place to another. It can be a migration between platforms of the same type, or a migration between platforms of different types. [0003] When migrating a virtual machine from the VMware platform to the OpenStack platform, due to the conversion of the disk format, it is generally implemented in the following two ways: generally the following two ways: the user manually downloads the VMw...

AI Technical Summary

Problems solved by technology

[0003] When migrating a virtual machine from the VMware platform to the OpenStack platform, due to the conversion of the disk format, it is generally implemented in the following two ways: generally the following two ways: the user manually downloads the VMware vSphere virtual machine disk file, Use the qemu-img tool to convert the VMDK file into a QCOW2 format disk file, upload it to the OpenStack image library, and then create a new virtual machine by specifying the image in OpenStack; use the virt-v2v tool developed by Redhat to implement , it is a script written in perl language, which can automatically copy the virtual machine created on VMware vSphere to the host of the OpenStack platform, but the virtual machine still needs to be shut down before copying

[0004] In the above two implementation methods, it is necessary to shut down the virtual machine and then start the virtual machine migration during the virtual machine migration process. However, the entire virtual machine migration process takes a long time, resulting in a long suspension of the virtual machine business, which is critical for continuous business operation. In addition, the overall implementation process requires an agent program pre-installed on the virtual machine to read the files in the virtual machine and write them into the new platform. The intervention of the agent program may easily cause the virtual machine Medium files are under greater threat, affecting the security of virtual machine files

Images