CN102368787A

CN102368787A - Cloud computing system based on KVM (Keyboard Video and Mouse) virtualization and media redirection

Info

Publication number: CN102368787A
Application number: CN201110394034XA
Authority: CN
Inventors: 金长新; 刘强; 梁智豪
Original assignee: Inspur Group Co Ltd
Current assignee: Yantai Inspur Cloud Computing Co ltd
Priority date: 2011-12-02
Filing date: 2011-12-02
Publication date: 2012-03-07
Anticipated expiration: 2031-12-02
Also published as: CN102368787B

Abstract

The invention discloses a cloud computing system based on KVM virtualization and media redirection. The system includes two parts of cloud computing server and client. In addition to the virtualization of resources, the server also realizes the virtualization of KVM and virtualization of media redirection. The resource virtualization unit provides users with computing resources such as CPU and memory; KVM virtualization provides users with human-computer interaction modes such as VIDEO video display, keyboard and mouse; Mapped to the server side for the transmission of user data. In this way, for the client, the three virtualized parts constitute a complete computer virtual device at the client, which reduces the demand for client hardware resources and facilitates the construction of server-side cloud computing services.

Description

A kind of based on the virtual cloud computing system that is redirected with medium of KVM

Technical field

The present invention relates to computer realm, be specifically related to a kind of based on the virtual cloud computing system that is redirected with medium of KVM.

Background technology

At present aspect the implementation of cloud computing system many based on the CS pattern promptly: server and client side's pattern.Performance to the network bandwidth and client computer under this mode all has certain requirement, and client wants installing operating system, and softwares such as browser and JAVA virtual machine arranged.Aspect procotol, also to adopt the multiple network host-host protocol.So the deployment relative complex of cloud computing system, cost is higher, difficulty is bigger.

Summary of the invention

The present invention is directed to the deficiency that existing cloud computing system exists aspect deployment and realization, proposed a kind of based on the virtual cloud computing system that is redirected with medium of KVM.

The objective of the invention is to realize by following mode; System comprises cloud computing server end and client two parts; Comprise resource virtualizing unit, the virtual unit of KVM and medium redirection of virtual unit at the cloud computing server end, comprise VIDEO in client and unpack display module, HID/CD/FD packing and unpacking module;

The resource virtualizing unit except that the resource virtualizing function is provided, also provide with the virtual unit of KVM in the interface of VIDEO SERVER module: virtual VGA interface and the virtual USB interface that is used to be connected HID SERVER, CD SERVER, FD SERVER;

The virtual unit of KVM comprises VIDEO SERVER module and HID SERVER module;

Medium are redirected the unit and comprise CD SERVER module and FD SERVER module;

The VIDEO of client unpacks display module and is responsible for receiving from the video data of cloud computing server end and unpacks demonstration; Reception is transferred to the cloud computing server end from the HID/CD/FD read-write of server end or configuration order and with the HID/CD/FD packing data;

Client also comprises supports user's apparatus operating such as display screen, keyboard, mouse, CD-ROM drive;

The virtual unit of KVM is transferred to client with VIDEO SERVER packing data through Ethernet, and the HID packet that receives from client is delivered to the resource virtualizing unit with the HID data through the virtual USB interface;

Pack the resource virtualizing unit and be transferred to client through Ethernet in the redirected unit of medium to the read write command of CD and FD; And reception is from the media data of client; After CD SERVER module and FD SERVER module unpack, be delivered to the resource virtualizing unit by the virtual USB interface;

The medium redirection steps is following: the mouse device in client is discerned by the bottom layer driving of client; And with mouse message be packaged into the iUSB packet through the cloud network delivery to server end; Caught by the USB HID process endpoint that medium are redirected the unit at the server end mouse message; Be delivered to the USB Drive Layer; Become a HID mouse device and receive data by the identification of resource virtualizing unit through the virtual USB interface to the USB hardware layer again, thereby accomplish being redirected of a complete USB HID equipment, the realization that is redirected of other USB devices similarly;

The HID/CD/FD data transmit with the form of iUSB bag, and the VIDEO data transmit with difference video flowing mode.

The invention has the beneficial effects as follows: comprise two parts cloud computing server end and client in the cloud computing system involved in the present invention.Server end is except that redirected virtual of the virtual virtual and medium of also having realized KVM of realizing resource.The resource virtualizing unit provides computational resources such as CPU, internal memory for the user; The virtual user of turning to of KVM provides interactive modes such as the demonstration of VIDEO video, keyboard and mouse; Medium are redirected the unit can be mapped to server end with memory devices such as the CD-ROM drive of user side, floppy disk, USB flash disks, supplies the transmission of user data.A complete computer virtual equipment concerning user side, just having formed user side like this through these three virtual parts.HID SERVER module in redirected unit of medium and the virtual unit of KVM is as virtualized USB device and resource virtualizing unit communication.VIDEO SERVER is connected with the resource virtualizing unit through virtual VGA interface and as the VGA display device.The HID SERVER that medium are redirected in unit and the virtual unit of KVM carries out data communication through the iUSB packet through Ethernet and client; VIDEO SERVER will compress from the video data of resource virtualizing unit through Network Transmission to client.For reducing bandwidth, can adopt the method for image difference transfer of data during video transmission, image change part is transmitted.

Because transfer of data is based on Ethernet protocol among the present invention; The packet that adopts only has video streaming data packet and iUSB packet; So client can be only other plants packet and packs and unpack to this; Client can need not installing operating system and browser like this, only relies on bottom software just can video decode be shown, and the packing of media datas such as HID and CD is sent to server end.

Medium involved in the present invention are redirected the memory devices such as HID equipment such as keyboard and mouse, USB CDROM equipment, USB FD floppy drive equipment and USB flash disk that mainly are meant client and are remapped to the resource virtualizing unit through the cloud network; The user is just the same as using in this locality when these equipment of use like this, and the realization of this part function is mainly leaned on medium to be redirected the unit and realized.

The present invention reduces the requirement of client hardware greatly, can reduce the cost of client hardware greatly, is beneficial to the deployment and the enforcement of cloud computing system.

Description of drawings

Fig. 1 is cloud computing system figure involved in the present invention;

Fig. 2 is redirected implementation figure for medium.

Embodiment

With reference to Figure of description to explanation at length below the work of the present invention.

Of the present invention based on the virtual cloud computing system that is redirected with medium of KVM, shown in accompanying drawing 1: the present invention includes server end and client two parts.Resource virtualizing unit, the virtual unit of KVM and/or medium redirection of virtual unit have been comprised at the cloud computing server end; Comprise VIDEO in client and unpacked display module, HID/CD/FD packing and unpacking module.

The resource virtualizing unit except that the resource virtualizing function is provided, also provide with the virtual unit of KVM in the interface of VIDEO SERVER module: virtual VGA interface and the virtual USB interface that is used to be connected HID SERVER, CD SERVER, FD SERVER.The virtual unit of KVM comprises VIDEO SERVER module and HID SERVER module.Medium are redirected the unit and comprise CD SERVER module and FD SERVER module.The virtual unit of KVM is transferred to client with VIDEO SERVER packing data through Ethernet, and the HID packet that receives from client is delivered to the resource virtualizing unit with the HID data through the virtual USB interface.Medium are redirected the unit resource virtualizing unit are transferred to client to the read write command packing of CD and/or FD through Ethernet, and receive from the media data of client and after CD SERVER module and FD SERVER module unpack, be delivered to the resource virtualizing unit by the virtual USB interface.

The VIDEO of client unpacks display module and is responsible for receiving from the video data of cloud computing server end and unpacks demonstration; Reception is transferred to the cloud computing server end from the HID/CD/FD read-write of server end or configuration order and with the HID/CD/FD packing data.Client also comprises supports user's apparatus operating such as display screen, keyboard, mouse, CD-ROM drive etc.

Transmit in the form of cloud computing data transmission HID/CD/FD data with the iUSB bag.The VIDEO data transmit with difference video flowing mode.

Medium are redirected implementation step shown in accompanying drawing 2, discern by the bottom layer driving of client at the mouse device of client, and with mouse message be packaged into the iUSB packet through the cloud network delivery to server end.Caught by the USB HID process endpoint that medium are redirected the unit at the server end mouse message; Be delivered to the USB Drive Layer; Become a HID mouse device and receive data by the identification of resource virtualizing unit through the virtual USB interface to the USB hardware layer again, thereby accomplish being redirected of a complete USB HID equipment.The realization that is redirected of other USB devices similarly.

Except that the described technical characterictic of specification, be the known technology of those skilled in the art.

Claims

1. A cloud computing system based on KVM virtualization and media redirection is characterized in that the system includes two parts, cloud computing server end and client end, and comprises resource virtualization unit, KVM virtualization unit and media redirection unit at cloud computing server end. Directed virtualization unit, including VIDEO unpacking and display module, HID/CD/FD packing and unpacking module on the client side;

In addition to providing resource virtualization functions, the resource virtualization unit also provides interfaces with the VIDEO SERVER module in the KVM virtualization unit: a virtual VGA interface and a virtual USB interface for connecting HID SERVER, CD SERVER, and FD SERVER;

KVM virtualization unit includes VIDEO SERVER module and HID SERVER module;

The media redirection unit includes a CD SERVER module and an FD SERVER module;

The VIDEO unpacking display module of the client is responsible for receiving video data from the cloud computing server and unpacking and displaying; receiving HID/CD/FD read and write or configuration commands from the server and packaging and transmitting HID/CD/FD data to the cloud computing server ;

The client also includes devices that support user operations such as display screens, keyboards, mice, and optical drives;

The KVM virtualization unit packs the VIDEO SERVER data and transmits it to the client via Ethernet, receives the HID data packet from the client, and transfers the HID data to the resource virtualization unit via the virtual USB interface;

The media redirection unit packs the CD and FD read and write commands of the resource virtualization unit and transmits them to the client via Ethernet, and receives the media data from the client. After being unpacked by the CD SERVER module and the FD SERVER module, the virtual USB interface passed to the resource virtualization unit;

The media redirection steps are as follows: the mouse device on the client side is identified by the underlying driver of the client side, and the mouse information is encapsulated into an iUSB data packet and transmitted to the server side through the cloud network, and the mouse information on the server side is sent to the USB HID endpoint of the media redirection unit The process is captured, passed to the USB driver layer, and then to the USB hardware layer to be recognized as a HID mouse device by the resource virtualization unit through the virtual USB interface and receive data, thereby completing a complete redirection of USB HID devices and redirection of other USB devices. The implementation of orientation is similar to this;

HID/CD/FD data is transmitted in the form of iUSB packets, and VIDEO data is transmitted in the form of differential video stream.