CN103841207A - College experiment teaching platform system based on cloud desktop and constructing method thereof - Google Patents
College experiment teaching platform system based on cloud desktop and constructing method thereof Download PDFInfo
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Abstract
The invention provides a college experiment teaching platform system based on a cloud desktop and a constructing method of the college experiment teaching platform system. A physical server subsystem is constructed through a physical server supporting the Intel VT-x, VT-d, and EPT technology or the AMD-v and IOMMU technology; a virtual machine set subsystem is constructed through a KVM and the like in the expanded full virtualization technology; an MVC framework is used for developing a Web management interface and a virtual resource management subsystem and an experiment teaching management subsystem are constructed; a cloud desktop experiment teaching subsystem is constructed through an open source remote desktop protocol. According to the college experiment teaching platform system based on the cloud desktop, the difficult problems that college experiment teaching platform resources are short currently and management is disorderly are solved, the college experiment teaching cost is reduced, and the experiment teaching level and the experiment teaching efficiency are improved.
Description
Technical field
The present invention relates to cloud computing technology field, particularly a kind of college experiment teaching plateform system and building method based on cloud desktop.
Background technology
Present colleges is computer, the computer experiment chamber of info class, electrical type is all multi-door course service, the computational resource in these laboratories, storage resources, Internet resources are extremely limited, add colleges and universities' Course Category abundant, bring very large management difficulty to experimental teaching, be mainly reflected in the following aspects:
1) standardization level of experimental teaching is poor, the version of the experimental situation of experimental project application, experimental tool, use software because of instructor's difference widely different;
2) specialization of experimental teaching, the degree that becomes more meticulous are low, because a traditional laboratory is multi-door course service simultaneously, more therefore need the experiment of multiple operating system environment, for example Hadoop, MPI, computer network course design is forced to cancel, the cancellation of these experiment contents, make teaching efficiency extreme difference, if things go on like this, the experimental teaching of colleges and universities will seriously lag behind the market demand;
3) Experimental Instruction Environment lacks continuity and consistency, at present, the cloud computing course of colleges and universities, the course of parallel computation often requires even in the academic year, to keep the software environment of computer and hardware environment to remain unchanged in a term, but, hard disk protecting card is often installed, in order to meet the needs of multi-door course on the PC in these traditional laboratories, often reduction within week or a day of hard disk, has been difficult to continuity and conforming environment;
4) the PC hard disk protecting card of experimental teaching has increased hardware cost, the more important thing is that fail safe is also very poor, in the process using in reality, a student often simple setting has just walked around hard disk protecting card, has all caused great trouble to management and safety;
5) in experimental teaching, some courses are as very high to PC configuration requirement in 3DMAX etc., and energy resource consumption is also very big, has increased undoubtedly the cost of college experiment teaching.
Summary of the invention
In order to solve the above-mentioned problems that exist in college experiment teaching, the present invention uses server virtualization technology that physical server is invented to multiple logical Virtual machines, use desktop virtual technology that virtual hundreds and thousands of good virtual machines are transported on terminal equipment by length of run desktop protocol, student can test in cheap terminal, develop college experiment teaching platform simultaneously, well solved the problem existing in present colleges experimental teaching.
The invention provides a kind of college experiment teaching plateform system based on cloud desktop, comprising:
Physical server group subsystem, the bottom of the college experiment teaching plateform system based on cloud desktop described in being arranged at;
Virtual machine cluster subsystem, is arranged on described physical server group subsystem;
Virtual resource ADMINISTRATION SUBSYSTEM, is arranged on described virtual machine cluster subsystem;
Experimental teaching ADMINISTRATION SUBSYSTEM, is arranged on described virtual resource ADMINISTRATION SUBSYSTEM;
Cloud desktop experimental teaching subsystem, is arranged on described experimental teaching ADMINISTRATION SUBSYSTEM.
Further, the described college experiment teaching plateform system based on cloud desktop, described virtual resource ADMINISTRATION SUBSYSTEM comprises:
Credible virtual environment module, for the start-up loading of virtual machine, carries out credible checking to the dynamic base in VME operating system, module, executable program, and generates a customizable chain-of-trust;
Resources of virtual machine monitoring module, monitors in real time for the service condition to virtual resource, described information is saved in database simultaneously;
Physical server administration module, the virtual machine state moving on processor resource, memory source, Internet resources and every station server for hardware management physical server;
Virtual machine life cycle management module, for the establishment of managing virtual machines, destroy, restart, snapshot, migration;
Resources of virtual machine scheduler module for virtual processor resource, memory source, Internet resources are reasonably distributed to each virtual machine, realizes effective configuration of these resources and effectively customization simultaneously;
Virtual machine template configuration module, for generation of the operating system template of various version;
Authentication management, enters the various users of virtual resource management level, user's authority for managing.
Further, the described college experiment teaching plateform system based on cloud desktop, described experimental teaching ADMINISTRATION SUBSYSTEM comprises:
Experimental courses information module, experimental courses row class module, laboratory report is submitted module to, laboratory report grading module, experimentation student-directed module, estabdishment of experiment contents module, experimental data is uploaded download module, experiment teacher computer formwork module, experimental demonstration broadcast module, laboratory application module, laboratory examination & approval module, experiment machine for student formwork module, experiment teacher management module, laboratory department information module, experiment teacher information module, experiment student information module, experimental teaching early warning weekly, experimental teaching every day warning module, end message interaction platform module.
Accordingly, the present invention also provides a kind of college experiment teaching platform architecture method based on cloud desktop, comprising:
Use the physical server structural physical server subsystem of supporting Intel VT-x, VT-d, EPT technology or AMD-v, IOMMU technology;
The constructing virtual group of planes subsystems such as the fully virtualized technology KVM of use expansion;
Use MVC Development of Framework web management interface constructing virtual Resource Manager Subsystem and experimental teaching ADMINISTRATION SUBSYSTEM;
The use RDP structure cloud desktop experimental teaching subsystem of increasing income.
College experiment teaching plateform system and building method based on cloud desktop provided by the invention, there is following beneficial effect: the invention solves that the standardization level existing in existing college experiment teaching is poor, low degree of specialized division of labor, teaching equipment poor stability, teaching environment lack continuity and consistency, instruction cost are high, etc. problem, effectively met the requirement growing with each passing hour to experimental teaching in market.Method provided by the invention and system thereof have very strong actual application value for the experimental teaching of present colleges, are well suited for using in institution of higher learning's large-scale popularization.
Brief description of the drawings
Fig. 1 is college experiment teaching business process map of the present invention;
Fig. 2 is college experiment teaching plateform system and the building method schematic diagram of the preferred embodiment of the present invention based on cloud desktop;
Fig. 3 is the college experiment teaching plateform system based on cloud desktop and the building method schematic diagram of the embodiment of the present invention 1.
Embodiment
College experiment teaching plateform system and the building method based on the cloud desktop that the present invention are proposed below in conjunction with the drawings and specific embodiments are described in further detail.According to the following describes and claims, advantages and features of the invention will be clearer.It should be noted that, accompanying drawing all adopts very the form of simplifying and all uses non-ratio accurately, only in order to convenient, the object of the aid illustration embodiment of the present invention lucidly.
Please refer to Fig. 1, it is college experiment teaching business process map.As shown in Figure 1, in college experiment teaching business, having four kinds of roles is respectively teaching management person, experiment teacher, experiment management person, experiment student.These four kinds of roles defer to following flow process coordinated and complete the experimental teaching task of colleges and universities.
First, teaching management person provides institute to give a course information and student ' s list to experiment management person, the laboratory Information generation experiment school timetable that experiment management person is current according to institute.
Secondly, experiment teacher prepares lessons according to experimental courses outline and then makes Experiment Course Teaching content, after this, proposes laboratory application to experiment management person.
Further, Experiment Course Teaching content, laboratory application situation and current experiment school timetable that experiment management person provides according to experiment teacher carry out laboratory examination & approval, generating virtual machines template simultaneously, then, experiment management person creates experiment virtual machine according to virtual machine template.
Finally, experiment teacher and experiment student complete experimental teaching on the successful virtual machine of establishment.The work that mainly completes of experiment teacher comprises that experiment is given lessons, experimental demonstration, laboratory report are collected, laboratory report scoring.The work that experiment student mainly completes comprises that application virtual machine completes experiment content, completes experiments experiment report, uploads laboratory report.
Please refer to Fig. 2, it is college experiment teaching plateform system and the building method schematic diagram of the preferred embodiment of the present invention based on cloud desktop.As shown in Figure 2, the invention provides a kind of college experiment teaching plateform system based on cloud desktop, comprising: physical server group subsystem, virtual machine cluster subsystem, virtual resource ADMINISTRATION SUBSYSTEM, experimental teaching ADMINISTRATION SUBSYSTEM and cloud desktop experimental teaching subsystem; Wherein,
Described physical server group subsystem, the bottom of the college experiment teaching plateform system based on cloud desktop described in being arranged at, is the physical support of this platform.The actual demand of physical server group's configuration quantity based on college experiment teaching and setting.
Described virtual machine cluster subsystem, is arranged on described physical server group subsystem, is on physical server group, to construct and produce hundreds and thousands of routine virtual machines based on increase income Intel Virtualization Technology Xen, KVM, LXC etc.These virtual machines are the bases that form cloud desktop Experimental Instruction Environment.
Described virtual resource ADMINISTRATION SUBSYSTEM, is arranged on described virtual machine cluster subsystem, and a large amount of virtual machines that mainly based on MVC frame mechanism, virtual machine cluster produced are effectively managed;
Concrete, described virtual resource ADMINISTRATION SUBSYSTEM comprises:
Credible virtual environment module: this module is mainly that dynamic base, module, the executable program in start-up loading device, the VME operating systems of hash algorithm to the virtual machine monitor such as Xen, KVM, virtual machine such as application SHA-1 carries out credible checking, and generates a customizable chain-of-trust.
Resources of virtual machine monitoring module: this module is mainly used Nagios or the Ganglia based on increasing income to monitor in real time the service condition of the virtual resources such as VCPU, virtual memory, Microsoft Loopback Adapter, these information is saved in database simultaneously.
Physical server administration module: the virtual machine state moving on processor resource, memory source, Internet resources and every station server of this module mainly for all hardware physical server in whole Platform of Experimental Teaching is effectively managed.
Virtual machine life cycle management module: this module mainly refer to virtual machine establishment, destroy, restart, the management of the operation such as snapshot, migration.
Resources of virtual machine scheduler module: this module mainly realizes reasonably distributes to each virtual machine by virtual processor resource, memory source, Internet resources realizes effective configuration of these resources and effectively customization simultaneously.
Virtual machine template configuration module: this module mainly produces the operating system template of various version, a large amount of virtual machines creates based on these templates.Described operating system comprises the Linux of Windows7, Windows XP and various distribution versions.
Authentication management: this module is mainly and enters the various users of virtual resource management level, user's authority is effectively managed.
Preferably, also comprise in other embodiments other modules: as module such as management, log management of virtual machine image etc.
Described experimental teaching ADMINISTRATION SUBSYSTEM, be arranged on described virtual resource ADMINISTRATION SUBSYSTEM, realize college experiment teaching platform major function based on MVC frame mechanism, mainly comprise with lower module: experimental courses information, experimental courses row class, laboratory report is submitted to, laboratory report scoring, experimentation student-directed, estabdishment of experiment contents, experimental data is uploaded download, experiment teacher computer template, experimental demonstration broadcast, laboratory application, laboratory examination & approval, experiment machine for student template, experiment teacher management, laboratory department information, experiment teacher information, experiment student information, experimental teaching early warning weekly, experimental teaching early warning every day, end message interaction platform.Described experiment machine for student template is the demand for current cloud computing teaching, in the time that the experiments such as Hadoop need the virtual machine of a large amount of specific customization, can generate from experiment machine for student formwork module; The described early warning of experimental teaching weekly, experimental teaching early warning every day is to show this week or will participate in the experiment teacher, experiment management person of related experiment, experiment student's information the same day; Described end message interaction platform refers to the application that the cell-phone customer terminal of experiment information is provided for teachers and students in school.
Described cloud desktop experimental teaching subsystem, is arranged on described experimental teaching ADMINISTRATION SUBSYSTEM, is the top layer of college experiment teaching platform, and this layer is to produce a large amount of virtual machines based on four layers under it, and experiment student completes experimental duties at this layer.
Accordingly, the invention provides a kind of college experiment teaching platform architecture method based on cloud desktop, specifically comprise the following steps:
Step 1: use the physical server structural physical server subsystem of supporting Intel VT-x, VT-d, EPT technology or AMD-v, IOMMU technology;
Step 2: the constructing virtual group of planes subsystems such as the fully virtualized technology KVM of use expansion, and on KVM basis, expand to S-KVM, make it meet the requirement of cloud desktop college experiment teaching platform;
Step 3: use MVC Development of Framework web management interface constructing virtual Resource Manager Subsystem and experimental teaching ADMINISTRATION SUBSYSTEM, select PHP+MYSQL, PHP+postgreSQL, JSP+MYSQL, JSP+postgreSQL in development technique;
Step 4: use RDP (spice agreement) the structure cloud desktop experimental teaching subsystem of increasing income.
[embodiment 1]
Incorporated by reference to Fig. 3, a case study on implementation of the college experiment teaching plateform system based on cloud desktop is described.The implementation case system is made up of from server, physical server switch, cloud desktop terminal, the cloud desktop network switch, IP-SAN storage networking, storage networking switch, router physics master server, physics.
Physics master server and physics are from server configuration Intel Xeon E series 8 cores, more than 128GB internal memory, storage selects Seagate Cheetah600GB15000 to turn 4, support RAID5, support IPMI management, 3 S of Huawei series 52 port number gigabit switch, 2, Intel PXLA8591LR ten thousand mbit ethernet card, cloud desktop terminal can adopt the cloud terminal VD1100 of Tsing Hua Tong Fang, and router is determined by campus network configuration.
Physics master server is installed SUSE Linux Enterprise Server11SP364 operating system, S-KVM is installed, build-in services end software, disposes college experiment teaching platform virtual resource ADMINISTRATION SUBSYSTEM, experimental teaching ADMINISTRATION SUBSYSTEM, cloud desktop experimental teaching subsystem based on cloud desktop.Other physics is installed SUSE Linux Enterprise Server11SP364 operating system from server, S-KVM is installed, client software is installed, is disposed college experiment teaching platform virtual resource ADMINISTRATION SUBSYSTEM, experimental teaching ADMINISTRATION SUBSYSTEM, cloud desktop experimental teaching subsystem based on cloud desktop.Cloud desktop terminal is selected Windows EmbeddedSystem7 or is supported Embedded open source linux operating system, more than kernel version Linux-2.6.32.IP-SAN storage networking is for storage virtual machine image file, VME operating system.
A physics master server can be managed the laboratory that 3 capacity are 50 seats, each virtual machine can storage allocation be 512MB～32GB, the assignable VCPU quantity of each virtual machine is 1～32.
The address that the network planning of present case marks as accompanying drawing 3, wherein, physical server switching network address is 192.168.110.0/255.255.255.0; Cloud desktop terminal switching network address is 192.168.120.0/255.255.255.0; The IP-SAN memory transactions network address is 192.168.130.0/255.255.0.0; Experiment virtual machine switching network address is 192.168.0.0/255.255.0.0.
Foregoing description is only the description to preferred embodiment of the present invention, the not any restriction to the scope of the invention, and any change, modification that the those of ordinary skill in field of the present invention does according to above-mentioned disclosure, all belong to the protection range of claims.
Claims (4)
1. the college experiment teaching plateform system based on cloud desktop, is characterized in that, comprising:
Physical server group subsystem, the bottom of the college experiment teaching plateform system based on cloud desktop described in being arranged at;
Virtual machine cluster subsystem, is arranged on described physical server group subsystem;
Virtual resource ADMINISTRATION SUBSYSTEM, is arranged on described virtual machine cluster subsystem;
Experimental teaching ADMINISTRATION SUBSYSTEM, is arranged on described virtual resource ADMINISTRATION SUBSYSTEM;
Cloud desktop experimental teaching subsystem, is arranged on described experimental teaching ADMINISTRATION SUBSYSTEM.
2. the college experiment teaching plateform system based on cloud desktop as claimed in claim 1, is characterized in that, described virtual resource ADMINISTRATION SUBSYSTEM comprises:
Credible virtual environment module, for the start-up loading of virtual machine, carries out credible checking to the dynamic base in VME operating system, module, executable program, and generates a customizable chain-of-trust;
Resources of virtual machine monitoring module, monitors in real time for the service condition to virtual resource, described information is saved in database simultaneously;
Physical server administration module, the virtual machine state moving on processor resource, memory source, Internet resources and every station server for hardware management physical server;
Virtual machine life cycle management module, for the establishment of managing virtual machines, destroy, restart, snapshot, migration;
Resources of virtual machine scheduler module for virtual processor resource, memory source, Internet resources are reasonably distributed to each virtual machine, realizes effective configuration of these resources and effectively customization simultaneously;
Virtual machine template configuration module, for generation of the operating system template of various version;
Authentication management, enters the various users of virtual resource management level, user's authority for managing.
3. the college experiment teaching plateform system based on cloud desktop as claimed in claim 1, is characterized in that, described experimental teaching ADMINISTRATION SUBSYSTEM comprises:
Experimental courses information module, experimental courses row class module, laboratory report is submitted module to, laboratory report grading module, experimentation student-directed module, estabdishment of experiment contents module, experimental data is uploaded download module, experiment teacher computer formwork module, experimental demonstration broadcast module, laboratory application module, laboratory examination & approval module, experiment machine for student formwork module, experiment teacher management module, laboratory department information module, experiment teacher information module, experiment student information module, experimental teaching early warning weekly, experimental teaching every day warning module, end message interaction platform module.
4. the college experiment teaching platform architecture method based on cloud desktop, is characterized in that, comprising:
Use the physical server structural physical server subsystem of supporting Intel VT-x, VT-d, EPT technology or AMD-v, IOMMU technology;
The constructing virtual group of planes subsystems such as the fully virtualized technology KVM of use expansion;
Use MVC Development of Framework web management interface constructing virtual Resource Manager Subsystem and experimental teaching ADMINISTRATION SUBSYSTEM;
The use RDP structure cloud desktop experimental teaching subsystem of increasing income.
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