本文選題：中職學(xué)校 + 云數(shù)據(jù)中心��； 參考：《廣東技術(shù)師范學(xué)院》2017年碩士論文

【摘要】：隨著中職學(xué)校數(shù)字校園的發(fā)展,傳統(tǒng)數(shù)據(jù)中心已經(jīng)不能滿足學(xué)校日常教學(xué)、辦公和生活的需要。主要體現(xiàn)在運(yùn)營(yíng)成本高,資源分配不均,資源利用率低,可靠性、穩(wěn)定性和可擴(kuò)展性差,“信息孤島”現(xiàn)象突出。教育部《教育信息化十年發(fā)展規(guī)劃(2011-2020年)》和《職業(yè)院校數(shù)字校園建設(shè)規(guī)范》指出:數(shù)據(jù)中心是職業(yè)院校數(shù)字校園的重要基礎(chǔ)設(shè)施,數(shù)據(jù)中心的建設(shè)目標(biāo)是構(gòu)建安全、高效、高可用的數(shù)據(jù)中心系統(tǒng),數(shù)據(jù)中心的建設(shè)可考慮使用虛擬化技術(shù)。虛擬化技術(shù)自誕生以來就受到各界的歡迎,改變了IT基礎(chǔ)架構(gòu)。因此,如何利用虛擬化技術(shù)構(gòu)建新型的中職學(xué)校云數(shù)據(jù)中心,讓虛擬化技術(shù)促進(jìn)職業(yè)院校數(shù)字校園的發(fā)展成為研究熱門,具有重要的現(xiàn)實(shí)意義。本文以中職學(xué)校為背景進(jìn)行研究,與高校和企業(yè)不同,中職學(xué)校由于資金、技術(shù)、人才和規(guī)模的限制,云數(shù)據(jù)中心的構(gòu)建不能只追求高性能、大規(guī)模和一步到位,要根據(jù)自身特點(diǎn)統(tǒng)一規(guī)劃,有計(jì)劃地逐步進(jìn)行。在中職學(xué)校云數(shù)據(jù)中心系統(tǒng)中,各業(yè)務(wù)系統(tǒng)的負(fù)載有所不同而且差別很大,物理主機(jī)性能和結(jié)構(gòu)各異。因此,處理云環(huán)境下因高并發(fā)訪問和異構(gòu)物理主機(jī)引起的負(fù)載不均衡問題,成為提高云數(shù)據(jù)中心吞吐量和穩(wěn)定性的關(guān)鍵。本文主要研究?jī)?nèi)容如下:1、分析了中職學(xué)校數(shù)據(jù)中心的現(xiàn)狀和需求,為中職學(xué)校云數(shù)據(jù)中心的建立提供理論依據(jù)。2、研究了云計(jì)算相關(guān)知識(shí),分析流行的虛擬化和存儲(chǔ)技術(shù),結(jié)合中職學(xué)校的實(shí)際情況,使用VMware vSphere作為中職學(xué)校云數(shù)據(jù)中心的基礎(chǔ)架構(gòu)和共享存儲(chǔ)平臺(tái),Openfiler作為備份存儲(chǔ)平臺(tái)。3、對(duì)比分析LVS的四種轉(zhuǎn)發(fā)模式和四種常用的調(diào)度算法,指出在云環(huán)境下LVS的調(diào)度算法的不足,對(duì)云環(huán)境下LVS的加權(quán)輪詢調(diào)度算法進(jìn)行了改進(jìn)并應(yīng)用于中職學(xué)校云數(shù)據(jù)中心。4、通過實(shí)驗(yàn),驗(yàn)證了所設(shè)計(jì)的中職學(xué)校云數(shù)據(jù)中心各功能模塊和云環(huán)境下LVS的改進(jìn)加權(quán)輪詢調(diào)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.
【學(xué)位授予單位】：廣東技術(shù)師范學(xué)院
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：G717;TP308

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