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Hierarchical Homogeneous Computing Environment for Educational Institutions

教育機構階層同質資訊環境建置

摘要


電腦軟硬體和網路的快速發展,加深了教育機構資訊化環境管理及安全的問題。由於軟體和硬體的高度關聯性,造成數以百計的同質及異質電腦必須分開管理,以至於增加了資訊化環境的維護成本。近年來作業系統及磁碟的虛擬化技術快速發展,已普遍的用來提高系統的可靠性和可用性。虛擬化技術除了降低硬體和管理的成本,並提供更靈活的資訊環境維護機制。本論文實作作業系統和差異磁碟的虛擬化,以產生一個分階層同質的資訊環境,可以降低電腦管理的複雜性和軟體維護時間,並且提高了系統可用性及增強系統的安全性。要實現分階層同質化的資訊環境,計算和儲存環境將各自獨立,因此所有的作業系統和應用程式將集中在伺服器,而所有用戶端資料則儲存在本地磁碟或雲端磁碟上,因此系統的安裝、維護及管理可以集中在電腦中心。本環境在實作上已可以降低硬體和軟體的管理成本,並提供教育機構更靈活的資訊化運作環境。

並列摘要


The fast developments of computer software, hardware, and networks have significantly increasing the challenge of management and security issues in the computing environment of educational institutions. Due to the tight coupling of hardware and software, hundreds of homogeneous and heterogeneous computers have to be administrated individually, leading to a high total cost of ownership. Recently, virtualization of system and storage has become more and more important on the way to improve system reliability and availability, which can reduce hardware and administrated costs, and provide more flexibility on the maintenance of computing environment. This paper explains the system and storage virtualization to produce a Hierarchical Homogeneous Computing Environment (HHCE), which can reduce the administrated complexity and software maintenance time. In addition, it also improved the system availability, and enhanced the system security. To realize the HHCE, the computation and storage are separated. Thus all the operation systems and applications are centered on the servers and all of the client data are store on local storages or cloud storages. Therefore, the installation, maintenance, and administration can be centralized in the computer center. The real-world experiences demonstrate that this approach can reduce hardware and administrated costs, and provide more flexible computing environment for educational institutions.

參考文獻


Mark A. Margevicius, Michael A. Silver and Federica Troni, “Total Cost of Ownership Comparison of PCs With Hosted Virtual Desktops ,” Gartner, Inc., 2008
A Homogeneous Service Framework for Pervasive Computing Environments, Sergio Maffioletti, Simon Schubiger, Michele Courant, Bèat Hirsbrunner, Department of Informatics University of Fribourg, Thesis No. 1528, 2006.
(Citrix, “The power of virtualization,” Citrix White Paper, 2009.).
(VMware, “Solving the Desktop Dilemma with User-Centric Desktop Virtualization for the Enterprise,” VMware White Paper, 2010.).
(Liang Yang. Anthony F. Voellm., “Virtual Hard Disk Performance. Windows Server 2008 / Windows Server 2008 R2 / Windows 7,” Microsoft White Paper, 2010.).

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