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Virtual machine thermal migration method, physical host and system

A technology of physical host and virtual machine, applied in the field of communication, to achieve the effect of hot migration

Active Publication Date: 2014-12-10
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Embodiments of the present invention provide a method, a physical host and a system for live migration of virtual machines, which are used to solve the problem in the prior art that live migration of virtual machines cannot be realized in the HBA / HCA direct-through virtual machine mode

Method used

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  • Virtual machine thermal migration method, physical host and system
  • Virtual machine thermal migration method, physical host and system
  • Virtual machine thermal migration method, physical host and system

Examples

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Embodiment 1

[0059] see figure 2 Embodiment 1 of the present invention provides a method for live migration of a virtual machine, which is used to migrate services in a virtual machine in a first physical host to a virtual machine in a second physical host. In the embodiment of the present invention, a simulated host adapter is realized by software in the VMM to simulate a real hardware host adapter. The simulated host adapter can be pre-configured in the VMM, or it can be created by the VMM of the first physical host according to the hardware parameters of the host adapter in the first physical host when live migration of the virtual machine is to be performed, that is, the first physical host will Create an emulated host adapter with the same descriptor format and control register state information stored in the host adapter according to the hardware parameters of the internal host adapter, the emulated host adapter uses the same driver as the host adapter, and the emulated host adapter...

Embodiment 2

[0086] Embodiment 2 of the present invention provides another method for live migration of a virtual machine. In this embodiment, on the basis of steps 101 to 105 provided in Embodiment 1, when the host adapter is the Internet Small Computer System Interface ISCSIHBA, step 101 Replace with step 101a, or replace step 101 with step 101b when the host adapter is Fiber Channel FC / Fibre Channel over Ethernet FCoEHBA or Infiniband IB / RoCEHCA.

[0087] Such as image 3 As shown, when step 101 is replaced by step 101a, the method includes the following steps:

[0088] 101a. Continuously send transmission control protocol TCP message information with the window field being 0 to the service sender.

[0089] Specifically, the virtual machine of the first physical host can continuously send a TCP acknowledgment message with a window domain of 0 to respond to the peer end through the host adapter to continuously send a TCP confirmation message with a window domain of 0 to respond to the p...

Embodiment 3

[0097]Embodiment 3 of the present invention provides a first physical host, the first physical host includes a host and a host adapter connected to the host, the host adapter is a hardware device conforming to the single-root input-output virtualization SR-IOV standard, Including one or more physical functions PF and one or more virtual functions VF; the host runs a virtual machine and a virtual machine manager VMM, the virtual machine runs a guest operating system, and the guest operating system conforms to the SR-IOV standard Direct access to the VF through the direct technology; at the same time, the above-mentioned VMM also includes an emulation host adapter realized by software. Such as Figure 5 As shown, the host 3 also includes: an interaction module 31, a replication module 32, a binding module 33 and a migration module 34, wherein:

[0098] The interaction module 31 is configured to interact with the service sender, so that the service sender suspends sending servic...

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Abstract

The embodiment of the invention provides a virtual machine thermal migration method, a physical host and a system, and relates to the field of communication. The virtual machine thermal migration method is used for solving the problem that in the prior art, virtual machine thermal migration can not be achieved under a mode of HBA / HCA through virtual machine. The virtual machine thermal migration method comprises the steps that interaction is carried out with a service sender, and therefore the service sender temporarily stops sending service data; data in a host adaptor are copied to an emulation host adaptor; binding between the virtual machine and the host adaptor is relieved, and the virtual machine is bound with the emulation host adaptor; data corresponding to the virtual machine and data corresponding to the emulation host adaptor are migrated to a second physical host. The virtual machine thermal migration method, the physical host and the system are applied to virtual machine thermal migration.

Description

technical field [0001] The invention relates to the communication field, in particular to a virtual machine live migration method, a physical host and a system. Background technique [0002] Computer virtualization technology is currently a hot spot, and virtual machine live migration technology is a hot spot in virtualization technology. It can be said that virtual machine live migration technology has become a test index to measure the pros and cons of computer virtualization technology. The so-called hot migration of a virtual machine refers to migrating a running virtual machine from a source physical host to a destination physical host while ensuring normal operation of services on the virtual machine. [0003] A typical virtual machine application architecture commonly used now is a physical host installed with a virtual machine manager (Virtual Machine Manager, VMM for short) with the function of managing virtual machines. Specifically, the VMM manages one or more vir...

Claims

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Application Information

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IPC IPC(8): G06F9/455
CPCG06F9/455
Inventor 黄凯明仪长
Owner HUAWEI TECH CO LTD
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