中职学校云数据中心的研究与实现

发布时间：2018-05-26 16:41

本文选题：中职学校 + 云数据中心　；参考：《广东技术师范学院》2017年硕士论文

【摘要】：随着中职学校数字校园的发展,传统数据中心已经不能满足学校日常教学、办公和生活的需要。主要体现在运营成本高,资源分配不均,资源利用率低,可靠性、稳定性和可扩展性差,“信息孤岛”现象突出。教育部《教育信息化十年发展规划(2011-2020年)》和《职业院校数字校园建设规范》指出:数据中心是职业院校数字校园的重要基础设施,数据中心的建设目标是构建安全、高效、高可用的数据中心系统,数据中心的建设可考虑使用虚拟化技术。虚拟化技术自诞生以来就受到各界的欢迎,改变了IT基础架构。因此,如何利用虚拟化技术构建新型的中职学校云数据中心,让虚拟化技术促进职业院校数字校园的发展成为研究热门,具有重要的现实意义。本文以中职学校为背景进行研究,与高校和企业不同,中职学校由于资金、技术、人才和规模的限制,云数据中心的构建不能只追求高性能、大规模和一步到位,要根据自身特点统一规划,有计划地逐步进行。在中职学校云数据中心系统中,各业务系统的负载有所不同而且差别很大,物理主机性能和结构各异。因此,处理云环境下因高并发访问和异构物理主机引起的负载不均衡问题,成为提高云数据中心吞吐量和稳定性的关键。本文主要研究内容如下:1、分析了中职学校数据中心的现状和需求,为中职学校云数据中心的建立提供理论依据。2、研究了云计算相关知识,分析流行的虚拟化和存储技术,结合中职学校的实际情况,使用VMware vSphere作为中职学校云数据中心的基础架构和共享存储平台,Openfiler作为备份存储平台。3、对比分析LVS的四种转发模式和四种常用的调度算法,指出在云环境下LVS的调度算法的不足,对云环境下LVS的加权轮询调度算法进行了改进并应用于中职学校云数据中心。4、通过实验,验证了所设计的中职学校云数据中心各功能模块和云环境下LVS的改进加权轮询调度算法的合理性和有效性。
[Abstract]:With the development of secondary vocational school digital campus, the traditional data center can not meet the needs of daily teaching, office and daily life. It is mainly reflected in the high operating cost, uneven distribution of resources, low utilization of resources, low reliability, poor stability and poor expansibility, and the phenomenon of "information island" is prominent. It is pointed out by the Ministry of Education of the Ministry of Education in the decade of Education Informatization Development Plan 2011-2020) and the Standard of Digital Campus Construction in Vocational Colleges that the data center is an important infrastructure of the digital campus in vocational colleges, and the goal of the construction of the data center is to build a safe and efficient one. High availability of data center systems, data center construction can consider the use of virtualization technology. Virtualization technology has been welcomed by all circles since its birth, changing the IT infrastructure. Therefore, how to make use of the virtualization technology to construct the new secondary vocational school cloud data center, let the virtualization technology promote the development of the vocational college digital campus becomes the hot research, has the important practical significance. This paper takes the secondary vocational school as the background to carry on the research, and different from the university and the enterprise, the secondary vocational school because of the fund, the technology, the talented person and the scale limit, the cloud data center construction cannot only pursue the high performance, the large-scale and the one step to achieve, We should make a unified plan according to our own characteristics and carry out it step by step in a planned manner. In the cloud data center system of secondary vocational school, the load of each business system is different and very different, and the performance and structure of physical host are different. Therefore, it is the key to improve the throughput and stability of cloud data centers to deal with the load imbalance caused by high concurrent access and heterogeneous physical hosts in the cloud environment. The main contents of this paper are as follows: 1. This paper analyzes the current situation and needs of secondary vocational school data center, provides theoretical basis for the establishment of cloud data center, studies cloud computing related knowledge, and analyzes popular virtualization and storage technology. Combined with the actual situation of secondary vocational school, using VMware vSphere as the basic structure of cloud data center of secondary vocational school and Openfiler as backup storage platform, this paper compares and analyzes four forwarding modes and four common scheduling algorithms of LVS. This paper points out the deficiency of LVS scheduling algorithm in cloud environment, improves the weighted polling scheduling algorithm of LVS in cloud environment and applies it to cloud data center of secondary vocational school. The rationality and validity of the designed cloud data center function modules and the improved weighted polling scheduling algorithm of LVS in cloud environment are verified.
【学位授予单位】：广东技术师范学院
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：G717;TP308

【参考文献】