Virtual machine thermal migration method and communication equipment

Abstract

The embodiment of the invention discloses a virtual machine thermal migration method, which can realize SR-IOV network card state thermal migration. The method is applied to a source server running afirst virtual machine, the method is used for migrating the first virtual machine to a destination server, the source server comprises a single input/output virtualization SR-IOV network card, and thefirst virtual machine, a first virtual network card used by the first virtual machine, a virtual machine manager and a thermal migration module run in the source server. The first virtual network card is virtualized based on the SR-IOV network card, and the method comprises the following steps that the virtual machine manager sends a heating migration command to the thermal migration module; thethermal migration module obtains information needing to be migrated of the first virtual machine according to the thermal migration command, the information needing to be migrated of the first virtualmachine comprises state information of the first virtual network card and memory data of the first virtual machine, and the information needing to be migrated of the first virtual machine is reportedto the virtual machine manager; and the virtual machine manager sends the state information and the memory data of the first virtual machine to the destination server.

Description

technical field [0001] The present application relates to the technical field of communication, and in particular to a virtual machine live migration method and a communication device. Background technique [0002] Hot migration of virtual machines, also known as live migration or online migration, refers to migrating a virtual machine from one physical server to another while ensuring the normal operation of application services. availability, the migration process can only have very brief downtimes. Relying on the migration of virtual machines between different hosts, the cluster can effectively allocate and schedule resources. [0003] Single-root I / O virtualization (single-root I / O virtualization, SR-IOV) is an input and output (input / output, I / O) virtualization technology that can be interconnected in a physically fast peripheral component standard Multiple virtual PCIE devices are virtualized on a (peripheral component interconnection express, PCIE) device, which is ...

AI Technical Summary

Problems solved by technology

The SR-IOV network card can virtualize multiple virtual network cards. The virtual machine executes business through the virtual network card. Each virtual machine can bypass the virtual machine manager and directly perform network I / O data with one or more virtual network cards corresponding to it. Interactive, the state information of the virtual network card is saved in the storage medium of the network card, and the virtual machine manager cannot obtain the state information in the storage medium of the SR-IOV network card

[0004] During live migration of a virtual machine, the state information of the virtual network card corresponding to the virtual machine needs to be migrated from the source server to the destination server. Since the state information of the virtual network card is stored in the storage medium of the physical network card, the virtual machine manager does not perceive the status of the SR-IOV network card. The storage medium cannot obtain the state information, so the state information migration of the virtual network card corresponding to the virtual machine cannot be realized

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