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A virtual machine live migration method and device

A virtual machine, machine heat technology, applied in the field of cloud computing, to avoid the effect of low network card comprehensive performance

Active Publication Date: 2021-01-01
NEW H3C CLOUD TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the object of the present invention is to provide a virtual machine live migration method and device to solve or improve the above problems

Method used

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  • A virtual machine live migration method and device
  • A virtual machine live migration method and device
  • A virtual machine live migration method and device

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Embodiment Construction

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0030] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0031] It should be noted that relative ter...

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Abstract

The embodiment of the invention provides a virtual machine thermal migration method and device, and relates to the technical field of cloud computing. According to the method and the device, memory data of a to-be-migrated first virtual machine configured with a first VF driver is sent to a target host by a source host; the target host synchronizes the memory data to a position before a second virtual machine created by the target host; and sending a first control instruction to the intelligent network card to enable the first virtual machine to perform network I / O data interaction with the first physical function network card by operating the first VF driver, therefore, the memory data of the first virtual machine is migrated; the first virtual machine can also receive / send data through the first physical function network card. According to the method, the source host can read the data change of the first virtual machine in the migration process and synchronize the changed data to thesecond virtual machine, so that the problem that the online migration of the virtual machine cannot be realized by utilizing an intelligent network card in the prior art can be solved, and the utilization of virtio-can be avoided. The network card comprehensive performance is low due to the fact that the net drives the intelligent network card.

Description

technical field [0001] The present invention relates to the technical field of cloud computing, in particular to a virtual machine live migration method and device. Background technique [0002] SR-IOV (Single-Root I / O Virtualization, single-root I / O virtualization) is an IO virtualization technology that can be implemented on a physical PCIe (Peripheral Component Interconnection Express, fast peripheral component interconnection) device Virtualize multiple virtual PCIe devices. Virtual PCIe devices can only be configured and managed through the original physical PCIe device. Each virtual PCIe device can have independent interrupts and DMA (Direct Memory Access, direct memory access), so that the virtual machine The physical PCIE device can be directly accessed through the virtual PCIe device without the intervention of a VMM (Virtual Machine Monitor, virtual machine monitor). [0003] Taking SR-IOV NIC (Network Interface Card, network interface card) as an example, SR-IOV ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F9/455
Inventor 钟晋明
Owner NEW H3C CLOUD TECH CO LTD