Method and system for achieving system stability during physical network card insertion and extraction

Abstract

The invention discloses a method for achieving system stability during physical network card insertion and extraction. The method comprises the steps that when a refresh instruction sent by a user is received, whether a virtual machine and a physical network card are in direct use relationship or not is judged; if yes, a prompt instruction for promoting the user to relieve the direct use relationship is generated; a relieving instruction sent by the user is received, the use state of the physical network card in an upper layer database is deleted according to the relieving instruction, and the use relationship of the virtual machine and the physical network card in a configuration file of the virtual machine is deleted; after relieving is completed, a physical network card list is refreshed through the upper layer logic. It is ensured that the use state of the physical network card stored in the upper layer database is consistent with the actual use state of the current physical network card, the phenomenon that system data in the upper layer database is broken during physical network card insertion and extraction is effectively avoided, and the stability of a virtualization system is enhanced. The invention further discloses a system for achieving the system stability during physical network card insertion and extraction. The system has the advantages.

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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