以OpenStack實現自主IaaS的實驗

Implementing IaaS with OpenStack: An Experiment

黃智國(Chin-kuo Huang)

指導教授 ： 洪朝貴

朝陽科技大學/資訊學院/資訊管理系/碩士(2012年)

摘要

根據NITS所定義的雲端服務模式中，架構即服務(IaaS)是將電腦基礎設備整體統合、有效利用資源的概念，分割成不同的單位供企業來租用。這種服務現在早在2006年亞馬遜書店將機房將閒置運算資源轉為Amazon Web Service(AWS)服務，受到市場歡迎並成為龍頭廠商。這種服務對初步創業的公司與短期大型活動節省IT草創期間大量的成本與彈性運用。但一直以來，公有雲在隱私安全上，受到許多企業保持的觀望質疑的態度。另一方面，企業內機房的運算資源，整體使用率只有10%左右。如何將企業內的閒置運算資源作有效利用統整分配，變成高彈性IaaS私有雲，讓IaaS私有雲相容於AWS公有雲，最終達到讓私有雲與公有雲無障礙的彈性混搭，成為一種願景。2010年七月NASA和Rackspace合作開發的雲端運算平台OpenStack。成為第一個相容於AWS的完全開源雲端基礎架構平台。然而在目前OpenStack中文資料非常匱乏的情況下，本文將詳細介紹以OpenStack建立一個精簡IaaS私有雲模型。內容詳細記載架設過程與經驗。並以 Nbench 與 UnixBench 進行與實體機器比對的效能測試。實驗結果顯示: 開放原始碼、零授權費、 透過國際共同合作所開發的OpenStack提供了一種企業組織實現自主 IaaS方式，提供給有興趣導入自主 IaaS 的企業組織參考。

關鍵字

自由軟體 ； IaaS ； 雲端運算 ； 虛擬化 ； OpenStack ； 效能測試

並列摘要

According to NITS definition of cloud service models, Infrastructure as a service (IaaS) is the overall integration of computer-based resources. Resources are used more efficiently when they are divided into smaller units for businesses to hire. This kind of services began in 2006, The Amazon Bookstore take idle computing resources and convert them into Amazon Web Service (AWS)services. AWS became very hot in the market. It reduces a lot of costs and provides flexibility for new companies and short-term usage. However security concerns over public cloud services keep many companies from using it. On the other hand, according to surveys the overall utilization rate of enterprise computing resources in the computer room is only about 10%. It would be nice to make use of idle computing resources as a flexible IaaS private cloud and make it compatible with AWS public cloud. In July 2010 NASA and Rackspace''s cloud computing platform began to develop OpenStack. It’s the first fully open source project compatible with AWS cloud infrastructure platform. But Chinese resources on OpenStack are very scarce on now. This paper detail the steps of setting up an OpenStack IaaS private cloud. It records the processes and experiences. In addition Nbench and UnixBench are used for performance comparison with the physical test machine. The results show that the open source, zero license cost, internationally co-developed OpenStack provides a way for interested organizations to have their own IaaS.

並列關鍵字

OpenStack ； virtualization ； free software ； IaaS ； cloud computing ； Performance test

參考文獻

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[4] R. Jeyarani (2011)Power Aware Meta Scheduler for Adaptive VM Provisioning in IaaS Cloud International Journal of Cloud Applications and Computing, 36-51.

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[18] Application programming interface. http://en.wikipedia.org/wiki/Application_programming_interface