Cloud space Service of Harbin University of Technology

Harbin University of Technology information construction to serve the general teachers and students for the purpose of the implementation of the digital campus construction project, the implementation of the hardware cluster, data concentration, application integration and information standardization, the corresponding management has achieved remarkable results. All along, the school has only provided limited function hosting or space hosting services to departments, administrative units, laboratories and research institutes, and is not open to students and teachers in schools. If the teachers and students want to make personal websites, they can only rent server resources outside the public network, involving the record, domain name and many other operations, not only high prices, increase the economic burden of teachers and students, but very cumbersome. In addition, due to the characteristics of the school's engineering, many computer-related majors with personal interests or classroom practice activities for network-related development, independent development of a number of campus-oriented information systems, such as some campus mobile applications or campus E-commerce. Because there is no server and network resources in the campus network, the project can not be applied in practice, which hinders the enthusiasm of the students ' development. In order to encourage students ' independent social practice activities, excavate the students ' innovation, creativity and creativity, enrich the application of campus information, and also provide a personal website space for the teachers, our school in 2011 for all the teachers and students in the University of Harbin to provide cloud space services.

Construction target

The overall goal of the construction of cloud space in Harbin Institute of Technology is to serve the campus for the purpose of using the existing Campus data center construction results, with first-class standards to think about information application construction model, through innovative thinking and advanced technology, for teachers and students to provide user-friendly space services. At the same time, for those who are interested in the development of Internet applications in college students to provide innovative, creative, and creative development platform, to encourage innovative thinking, for application developers to provide a completely free server host, storage space, bandwidth and other environments, while providing the necessary guidance and help to enrich the campus network resources, Provide support for high level start-up Internet applications. Its specific objectives include:

1. Build a scalable campus cloud, integrate host systems and storage, build a flexible resource pool for virtualization, and achieve a highly reliable operating environment and tiered storage.

2. To build a convenient and Easy-to-use Teacher's homepage system in the form of SaaS Cloud service, use the campus unified identity authentication, make it become the important public information service of the campus, provide the personal information trusteeship function for all teachers in the school.

3. Building a secure and stable teacher's personal blogging system in the form of SaaS cloud services as a complement to teachers ' space services, providing a standardized blog service for school teachers and campus organizations.

4. Based on the campus basic cloud to provide free server space service and VPS service for students in the school, the common development components are serviced and the standard open interface is provided externally.

5. Provide Internet development consultation and assistance to student development team, and establish perfect management system.

Construction programme

According to the actual situation of the campus network of our school, the cloud Space service of Harbin University of Technology adopts the scalable cloud computing model to provide open computing environment based on open source cloud computing and cloud storage technology. Specific ways include:

1. Integrate host systems through virtualization suite, compute resource pooling to reduce service costs, and achieve a highly reliable operating environment. In order to effectively protect investment and obtain better return on investment, our school has integrated some of the original HP Blade server, according to the characteristics of cloud computing system, upgraded the configuration, make the performance more balanced. Using virtualization technology, the server is virtualized to multiple performance virtual machines, monitoring and managing all VMS in the whole cluster system, and flexibly allocating and dispatching resource pools according to actual resource usage. Provides data storage and processing services by connecting to a central storage system. Virtual machines can break the limit of a single physical machine, dynamically adjust and allocate resources to eliminate the single point of failure of servers and storage devices, and achieve high availability. The host cluster built after server integration provides users with a safe and stable operating environment.

2. Through the classification of the system services to the image processing, database, WebServer, Mail, code version management, such as the basic components of Internet development in the form of service extensions to the developer, refinement functions, the space service model from the provision platform to provide platform and services. Service components are implemented using open source solutions and open standard Service interfaces to users for easy invocation.

3. Through the business functions of the rational planning to achieve hierarchical management. Depending on the priority of the specific business application and requirements for performance, reliability, and flexibility for the teacher user to provide the teacher's personal homepage and personal blogging system in a way that provides SaaS services, the user is directly used without regard to implementation details, while for students the Internet development test will directly provide server space or VPS host, Through controllable management means, to ensure that users can easily enjoy the digital campus construction results.

Implementation effect

Through the implementation of cloud space services, our school has set up a teacher blog service, not only for front-line teachers, but also for the subject and departments to provide Internet Information services. There are hundreds of teachers who have built personal blogs through the service, at the same time, some organizational departments, such as the library, Graduate school, school broadcasting station, etc., also used for campus information dissemination, academic information archiving and other work, in the campus information process played a positive role; at the same time, teachers launched a teacher's personal homepage service, It has provided the functions of managing personal information including basic information, scientific research, treatise, Honor Award, scientific research team, academic exchange, enrollment information, teaching display, personal news, simple document and picture sharing, English introduction page and so on, and has formed the information portal centered on teachers ' basic information.

Our school also aims at the university students launched the University student Internet Project Innovation Service platform, the project is the Harbin University of Technology cloud space service core part, to large-scale hardware network environment as the foundation, to the mass storage equipment as the backing, through the software and hardware virtual into the Cloud space service provides the safeguard. As a high demand for the hardware environment of the campus service, our school in the core of the campus division of specialized areas, the use of independent networks and the division of VLANs, so that the region's services and other information services on campus isolation, and in the Campus data center of the centralized storage division of the independent space. According to the characteristics of Internet development, our school has prepared a combination of operating system, database, space and other resources for the development team to choose, can basically meet any campus size of the Internet Development Team Network Service resource needs.

Through the implementation of cloud space service, the space service provided by our school provides a platform for the accumulation of information resources in the campus network, completes the real-time updating of the personal information of the campus network teachers, and from the root, eliminates the current situation that the teacher's personal information is obsolete and the update is not timely. Computing resources provided through cloud space, in less than two years, for the school more than 30 student team to provide space services, a total of more than 20 of the system of the formation of the application, in the vast number of teachers and students produced a good reputation and response, so that the vast number of students also experienced the results of cloud computing services.

Experience Summary

To provide space services for teachers and students, there is no difficulty in technology, but in the Management Service model is an attempt and innovation. The Cloud space service realizes the effective utilization of the resources, through the construction of the school's overall public sharing service application support system, has established the overall business of serving the whole university, and has provided the dynamic, scalable and virtualized computing resources through the Internet to realize the maximum sharing of resources in the campus.

Teacher's personal homepage service and Teacher's blog service enrich the campus information application, Easy-to-use, easy to expand the SaaS cloud service model so that teachers need not master web design skills can have a rich network space, to meet the teacher's personalized campus network needs. At the same time, relying on the campus cloud Services server and network resources, providing development component space and directly provide a VPS two ways to fully meet the needs of students in the campus to engage in Internet-related development, both reduce the cost of student team development, help to improve the campus team development efficiency, At the same time, organized management has further enriched the campus information application.

The day-to-day management of the cloud infrastructure platform is the basic guarantee for the normal operation of the entire cloud space service, and the administrator must actively collect and record the performance metrics and data of the cloud computing server. Especially for the student team's server resource allocation, because most of the servers that bear the workload are virtual machines that need to use dedicated resources, for cloud computing servers, excessive or insufficient allocation of resources can cause serious problems. Therefore, before allocating resources, you must know more about the project content that the development team is planning, plan and estimate the workload reasonably, and ensure that the load of the running space service runs within the server's performance metrics.

The campus cloud space construction is the campus informationization development Tendency, it is helpful to promote teachers and students to form flexible teaching and learning ways, to cultivate high quality talents, to improve running level and to optimize school management, to adapt to the development of network technology, the needs of society and the needs of school management and teaching reform in the new era.