A virtual machine fault-tolerant system and method for storage faults

Abstract

The invention discloses a virtual machine fault-tolerant system and method for storage faults, and relates to the field of cloud computation. The system comprises an analysis and management module and at least one detecting and reporting module, wherein the analysis and management module corresponds to a control node, and each detecting and reporting module corresponds to a computing node; the detecting and reporting module is used for detecting a state of communication between the corresponding computing node and a corresponding storage node in real time and reporting a disconnection state to the analysis and management module when the state of communication is off; and the analysis and management module is used for receiving the state of communication between the computing node reported by the detecting and reporting module and the corresponding storage node, and enabling a virtual machine, which corresponds to the storage node and is in an operational state, in the computing node to be suspended when the state of communication is off. According to the system and the method, the business recovery time can be shortened and the data loss of the virtual machine can be avoided.

Description

technical field [0001] The invention relates to the field of cloud computing, in particular to a virtual machine fault-tolerant system and method for storage faults. Background technique [0002] At present, the development of virtualization technology has become more and more mature, and the virtual machine high-availability technology based on switching on and off has been deployed in the current production environment. However, when the virtual machine is in use, when the storage system of the virtual machine fails, High-availability technology is difficult to perceive. It needs to wait for the virtual machine system IO (input and output) to complete reading and writing. When the IO read and write timeout, the timeout information will be fed back to the virtual machine system, causing the windows virtual machine system blue screen or Linux virtual machine kernel Panic (error report ), at this time, it is still difficult for the management platform to know that the virtual...

AI Technical Summary

Problems solved by technology

[0002] At present, the development of virtualization technology has become more and more mature, and the virtual machine high-availability technology based on switching on and off has been deployed in the current production environment. However, when the virtual machine is in use, when the storage system of the virtual machine fails, High-availability technology is difficult to perceive. It needs to wait for the virtual machine system IO (input and output) to complete reading and writing. When the IO read and write timeout, the timeout information will be fed back to the virtual machine system, causing the windows virtual machine system blue screen or Linux virtual machine kernel Panic (error report ), at this time, it is still difficult for the management platform to know that the virtual machine has abnormalities, causing the virtual machine kernel to crash. After the virtual machine kernel crashes, the status of the virtual machine displayed on the management platform is still in the normal communication state. time for business recovery

[0003] During the switchover between primary and backup storage, the computing node is disconnected from the storage node, the data of the virtual machine cannot be written and read normally, and the abnormal writing and reading time of the virtual machine exceeds 10s (the time when the abnormality occurs in different operating systems different)), an exception will occur, and after the master-standby switching operation is completed, the virtual machine cannot return to normal, and the virtual machine needs to be reset on the management platform. The reset will not only prolong the recovery time of the virtual machine business, but also cause Data loss due to power off during virtual machine reset

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