High-availability virtual machine storage method and device

Abstract

The invention discloses a high-availability virtual machine storage method and device, and the method comprises the steps: firstly establishing communication connection with nodes in a distributed storage network by a Qemu virtual machine through a VIP, then communicating with the nodes through the communication connection according to a preset data transmission protocol, and then transmitting a network heartbeat packet through the communication connection to determine whether a node in a distributed storage network is abnormal or not; performing node replacement and communication connection re-establishment when determining that the node in the distributed storage network is abnormal; and meanwhile, judging whether the Qemu virtual machine has IO or not, checking whether the Qemu virtual machine is abnormal or not, and when determining that the Qemu virtual machine is abnormal, re-establishing the communication connection. Visibly, the IO transmission and high availability mechanism of the distributed storage network can be realized according to the IO interface of the Qemu layer, so that the storage resources can be reasonably distributed and fully utilized, and the modern storage requirements can be met.

Description

technical field [0001] The present application relates to the technical field of virtual machines, in particular to a highly available virtual machine storage method and device. Background technique [0002] With the rapid development of computer technology, the amount of network data processing has also increased rapidly. Nowadays, in order to improve the read and write performance during data processing and ensure data security, data is mostly stored in the form of distributed storage. [0003] Currently, the virtual operating system emulator (Quick EMUlator, referred to as Qemu) / KVM virtual machine (Kernel-based Virtual Machine) is an open source general device simulation technology in the field of virtualization. Among them, Qemu provides a series of devices including CPU (central processing unit, referred to as CPU), memory, network card, disk, etc., but because the calculation instructions issued by the virtual machine are all simulated by Qemu, it will lead to poor pe...

AI Technical Summary

Problems solved by technology

[0003] At present, the virtual operating system emulator (Quick EMUlator, Qemu for short) / KVM virtual machine (Kernel-based Virtual Machine) is an open source general-purpose device simulation in the field of virtualization Among them, Qemu provides a series of devices including central processing unit (Central Processing Unit, referred to as CPU), memory, network card, disk, etc., but because the computing instructions issued by the virtual machine are all simulated by Qemu, it will cause the virtual machine poor performance

KVM is a virtualization technology provided by the linux kernel. Although it can provide the creation and operation of vcpu, the address space allocation of virtual memory, etc., it lacks the simulation of input / output (Input / Output, referred to as IO) devices.

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