虛擬化計算平台上虛擬機層的高可用性｜國立中央大學博碩士論文系統

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研究生：	修璃翠 Ratri Abdatush Sholihah
論文名稱：	虛擬化計算平台上虛擬機層的高可用性 High Availability for Virtual Machine Layer on Virtualized Computing Platform
指導教授：	王尉任 Wei-Jen Wang 梁德容 Deron Liang
口試委員:
學位類別：	碩士 Master
系所名稱：	資訊電機學院 - 資訊工程學系 Department of Computer Science & Information Engineering
論文出版年：	2020
畢業學年度：	108
語文別：	英文
論文頁數：	44
中文關鍵詞：	高可用性、虚拟机操作、保护
外文關鍵詞：	high availability, virtual machine operation, protection
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服務器虛擬化的作用對於許多企業使其應用程序在虛擬機上運行變得很重
要。因此，高可用性概念對於通過減少停機時間來保持系統可用性至關重要。
在我們之前的研究中，高可用性服務系統（ HASS）通過檢測和恢復為系統提供
保護。但是，在實際環境中，用戶需要執行虛擬機操作，這會影響檢測過程。
為了應對這種情況，本研究實施了一種新的檢測機制，該機制收集有關虛擬機
操作的信息，並將其與 HASS 檢測機制結合在一起。檢測過程將使用該信息來動
態更改虛擬機的保護。結果，新的檢測機制將獲得有關虛擬機操作和故障的正
確信息。因此，系統可以對虛擬機進行正確的檢測和恢復。

The role of server virtualization becomes important for many enterprises to put their
application running on virtual machines. As a consequence, the high availability concept is
more critical to keep the system available by reducing the downtime. In our previous research,
we developed a system called High Availability Service System (HASS) provides protection to
the system through detection and recovery. However, in the real environment users need to do
virtual machine operation that will affect the detection process. To handle this condition, this
study implements a new detection mechanism that collects the information about virtual
machine operation and combines it with the HASS detection mechanism. The information will
be used by the detection process to dynamically change the protection of virtual machines. As
a result, the new detection mechanism gets the correct information about the virtual machine
operation and the failure. So, the system can do the right detection and recovery for virtual
machines.

虛擬化計算平台上虛擬機層的高可用性.............................................................................................. i
High Availability for Virtual Machine Layer on Virtualized Computing Platform................................ ii
Authorization for Thesis/ Dissertation ................................................................................................... iii
Application for Embargo of Thesis/ Dissertation................................................................................... iv
Advisor’s Recommendation for Postgraduate Students.......................................................................... v
Verification Letter from the Oral Examination Committee for Master’s Students................................ vi
摘要........................................................................................................................................................ vi
Abstract ................................................................................................................................................. vii
ACKNOWLEDGMENT...................................................................................................................... viii
TABLE OF CONTENTS....................................................................................................................... ix
LIST OF FIGURES................................................................................................................................ xi
LIST OF TABLES ................................................................................................................................ xii
CHAPTER I INTRODUCTION ............................................................................................................ 1
1-1 Background ............................................................................................................................. 1
1-2 Motivation............................................................................................................................... 2
1-3 Research Objective.................................................................................................................. 2
1-4 Research Contribution............................................................................................................. 3
1-5 Thesis Structure....................................................................................................................... 3
CHAPTER II THEORY AND RELATED WORKS............................................................................. 4
2-1 Cloud Computing.................................................................................................................... 4
2-2 Server Virtualization ............................................................................................................... 4
2-3 High-availability...................................................................................................................... 4
2-4 OpenStack ............................................................................................................................... 5
2-5 Virtual Machine Operation...................................................................................................... 5
2-6 Libvirt...................................................................................................................................... 5
2-7 High Availability Service System (HASS) ............................................................................. 7
2-8 Related Works......................................................................................................................... 8
2-8-1 Citrix Hypervisor 8.2....................................................................................................... 9
2-8-2 IBM VM Recovery Manager HA Version 1.3.0 for Power Systems............................. 9
2-8-3 Oracle VM v3.4............................................................................................................... 9
2-8-4 OpenStack HA 0.0.1.dev812......................................................................................... 10
2-8-5 vSphere 4.0.................................................................................................................... 10
CHAPTER III DESIGN AND IMPLEMENTATION.......................................................................... 11
3-1 Design ................................................................................................................................... 11
3-1-1 HASS Overview............................................................................................................ 11
3-1-2 HAVM Delete ............................................................................................................... 14
3-1-3 HAVM Shutdown ......................................................................................................... 15
3-1-4 HAVM Start .................................................................................................................. 16
3-1-5 HAVM Reboot .............................................................................................................. 17
3-1-6 HAVM Live Migration ................................................................................................. 18
3-2 Implementation...................................................................................................................... 19
3-2-1 Function _check_instance_state.................................................................................... 19
3-2-2 Function _detect_and_recover ...................................................................................... 22
CHAPTER IV RESEARCH EXPERIMENT ....................................................................................... 24
4-1 Experiment Architecture ....................................................................................................... 24
4-2 Experiment Setup .................................................................................................................. 25
4-3 Experiment Design................................................................................................................ 25
4-4 Experiment Results ............................................................................................................... 26
CHAPTER V CONCLUSION AND FUTURE WORKS .................................................................... 28
5-1 Conclusion............................................................................................................................. 28
5-2 Future Works......................................................................................................................... 29
REFERENCES...................................................................................................................................... 30
                                

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