Method for supporting hot plugging of virtual machine USB (universal serial bus) storage equipment

Abstract

The invention relates to the technical field of cloud computing, in particular to a method for supporting hot plugging of virtual machine USB (universal serial bus) storage equipment. According to the method, firstly, a list of USB storage equipment is firstly scanned on a host computer; when new USB storage equipment is plugged, the version ID and the manufacturer ID of the equipment are obtained; then, one piece of storage equipment is newly built on a virtual machine according to the obtained vision ID and the manufacturer ID; next, the storage equipment is mounted into the corresponding virtual machine on the host machine according to the virtual machine ID; when the use of a USB in the virtual machine is completed, the USB storage equipment can be removed from an operation system; the storage equipment is dismounted according to the obtained virtual machine ID in the host machine, and the storage equipment is deleted. The method provided by the invention solves the problems that in the traditional USB use process through combining the remote desktop protocol, the operation excessively relies on the network, the data path needs to be frequently changed, the maintenance work load of managers is great, and the like. The method can be used for virtual machine USB storage equipment hot plugging.

Description

technical field [0001] The invention relates to the technical field of cloud computing, in particular to a method for supporting hot plugging of a virtual machine USB storage device. Background technique [0002] In a cloud computing environment, a virtual machine exists as an entity without a fixed form, and it is difficult to use an exclusive device such as USB storage. The common way to use a USB storage device on a virtual machine is to combine the remote desktop protocol. Steps as follows: [0003] 1. Insert the USB storage device into the computer where the remote desktop client is located; [0004] 2. The computer uses the remote desktop client to access the remote desktop of the virtual machine; [0005] 3. Map the USB storage device into a network disk through the remote desktop protocol; [0006] 4. Access the network disk on the virtual machine. [0007] This method has the following disadvantages: [0008] 1. The use of the USB storage device depends on the ...

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Problems solved by technology

[0008] 1. The use of the USB storage device depends on the remote desktop connection. After the remote desktop connection is disconnected, the USB storage device cannot be used by the virtual machine;

[0009] 2. The data access from the virtual machine to the USB storage device depends on the network. If the amount of data to be accessed from the USB storage device is large, there will be a bottleneck in the IO speed; on the other hand, data transmission through the network is also a threat to security;

[0010] 3. The path of device mapping will change every time, and the path of storing USB device data on the virtual machine will also change, and related applications on the virtual machine also need to be adjusted, which will increase the maintenance workload of the application administrator

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