虛擬化系統之「高可用度(HA)架構」

A High Availability Architecture of Virtualization System

陳志宇(Chih-Yu Chen)

指導教授 ： 劉世昌

義守大學/電機資訊學院/資訊工程學系/碩士(2017年)

摘要

由於科技的進步及數位設備的普及，21世紀的今日已成為資訊網路與精密工業高度結合及發展的時代，無論是大數據、雲端運算或資料庫管理等技術研展，在在都衝擊社經產業及國軍軍事發展，因此預期國軍對於發展不對稱戰力及永續經營層面，「資訊系統的快速佈建」、「設備更新與汰換」、「資料保存與備份」及「維護運作之人事維持」，勢必成為未來的重要課題。
然而在資訊服務二十四小時不中斷的「連續性」需求下，其更換設備與架構的過程中可能面臨「系統相容性與備援機制」與「新興技術運用及管理」等窒礙，及其他影響運行如「人員專長」及「災難復原的操作熟稔度」等變數，假設未能同步完善配套措施，上揭各項影響變因對於支援戰備任務的國軍單位，將可能限縮作戰的支援度，也因此美軍已將「虛擬化」視為國防重要課題，此時導入虛擬化所提供的高可用度(High Availability，HA)架構，是值得國軍思考其利弊並據以策訂日後的通資政策，並透過高可用度的系統建置及冗餘(Redundancy)概念的備援機制來降低其人力管理與風險。
因此本研究最後以實際建立虛擬化環境來實作高可用度及動態資源分配(Distributed Resource Scheduler，DRS)等系統進階功能，並透過模擬故障發生之災難演練及記錄之「測試結果」，作為未來系統導入與建構的經驗參考。

關鍵字

雲端運算 ； 虛擬化系統 ； 高可用度系統 ； 動態資源分配

並列摘要

Due to the progress of technology and the popularity of digital equipments, the 21st century becomes the era of highly combination and development times of the information network and precision industry, regardless of huge data, cloud computing and database management, and other technical research, they affect both the domestic industries and military development, so that Taiwan military is highly expected to develop the asymmetric combat power and the level of sustainable management, thus all "Rapid Deployment of Information Systems", "Equipment Renewal and Replacement", "Data Preservation and Backup" and "Maintain Operations Personnel Maintenance " are bound to become the important issues for the future.

However, non-interrupted, continuous demand of the 24-hour-service, the issues such as "System Compatibility and Recovery Mechanism" ," Application and Management of New Technology" and other obstacles are faced in the process of equipments replacement and architectures. And other factors that affect operations such as "Personnel expertise" and "Operations of the Disability Recovery", such various effects listed above will limit the support capabilities of the military units, if we can't complete the matching measures simultaneously, therefore, the U.S. military has pointed the "Virtualization" as an important defense topic [1], then enhancing the high availability (HA) architecture of the virtualization, for the Taiwan military. It is worthwhile to think about the pros and cons and to plan future communications and information policies to reduce its manpower management and risk through establishing high availability system and the backup mechanisms of redundancy.

Therefore, this research concludes with the actual establishment of the virtual environment to implement the advanced functions of the system such as high availability and Dynamic Resource Scheduler (DRS), and through the simulation of the disaster drill and record the "Test results" to be the reference experience of the system import and construction in the future.

並列關鍵字

Cloud Computing ； Virtualization System ； High Availability System ； Dynamic Resource Scheduler

參考文獻

[1].The Virtual Armed Forces: US Military Turns to Virtualization(2011), Available: http://www.defenseindustrydaily.com/dod-virtual-machines-06991/

[2].VMware(2006), “Virtualization Overview”, Available: https://www.vmware.com/pdf/virtualization.pdf.

[3].VMware(2011),”virtualization”, Available: http://www.vmware.com/tw/virtualization/what-is-virtualization.html.

[4].邱瑞，2013年，中小企業導入伺服器虛擬化之探討－以K公司為例，逢甲大學工業工程與系統管理學系碩士論文。

[5].Wikipedia contributors. (2016, July 10). Bare-metal server [online]. Available: https://en.wikipedia.org/wiki/Bare-metal_server.