A method and system for realizing system stability when plugging and unplugging a physical network card

Abstract

The invention discloses a method for realizing system stability when plugging and unplugging a physical network card, which includes judging whether the virtual machine and the physical network card are in a direct use relationship when receiving a refresh instruction sent by a user; if yes, generating a method for prompting the user The prompt command to release the direct use relationship; receive the release command sent by the user, delete the use status of the physical network card in the upper database according to the release command, and delete the use relationship between the virtual machine and the physical network card in the configuration file of the virtual machine; after the release is completed, Refresh the physical network card list through the upper layer logic. It ensures that the use status of the physical network card stored in the upper database is consistent with the actual use status of the current physical network card, and effectively avoids destroying the system data in the upper database when plugging and unplugging the physical network card, and enhances the stability of the virtualization system. The invention also discloses a system for realizing system stability when plugging and unplugging a physical network card, which has the above beneficial effects.

Description

technical field [0001] The invention relates to the field of virtualized storage, in particular to a method and system for realizing system stability when plugging and unplugging physical network cards. Background technique [0002] With the development of virtualization system, the wide application of cloud computing based on virtualization technology has improved the utilization rate of server CPU and network resources. The virtualization system includes an upper-layer database, a virtual machine, and a physical network card. In the prior art, when there is a virtual machine using passthrough or single-root virtualization sriov technology, the virtualization system will transparently pass the physical network card to the virtual machine, so that the virtual machine can connect to the network outside the server. But at this time, if the physical network card on the physical host is inserted or removed, the usage status of the physical network card stored in the upper datab...

AI Technical Summary

Problems solved by technology

But at this time, if the physical network card on the physical host is inserted or removed, the usage status of the physical network card stored in the upper database will be inconsistent with the actual usage status of the current physical network card. If you directly refresh the physical network card list at this time, it may It will destroy the data in the upper layer database of the virtualization system, thereby reducing the stability of the virtualization system

In the technical application of the current virtualization system, there is no solution that can effectively avoid the destruction of system data in the upper database when plugging and unplugging the physical network card and ensure the stability of the virtualization system when plugging and unplugging the physical network card.

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