Cloud Computing Technology

　1.1  Ubiquitous Cloud Computing 1

　1.2  The properties of Cloud Computing 3

1.2.1 On-demand self-service 3

1.2.2 Extensive network access 4

1.2.3 Resource Pooling 4

1.2.4 Fast and elastic scaling 4

1.2.5 Measurable services 5

　1.3  Definition of Cloud Computing     6

　1.4  The emergence and development of Cloud Coputing 9

1.4.1 The history of the network and the Internet 9

1.4.2 The history of computing models 11

1.4.3 The driving force of cloud computing 16

1.4.4 Development of Cloud Computing 18　1.5  云计算的优势   18

　1.6 Classification of Cloud Computing 19

1.6.1 Classification by operating model 19

1.6.2 Classification by service model 21

　1.7 Cloud enabling technology 23

1.7.1 Broadband network and Internet architecture 23

1.7.2 Data Center Technology 25

1.7.3 Virtualization Technology 25

1.7.4 Web Technology 26

1.7.5 Multi-tenant technology 28

1.7.6 Service Technology 28　

1.8 Understanding cloud computing from various perspectives 30

1.8.1 The ternary epistemology of cloud computing 30

1.8.2 Open Source Methodology of Cloud Computing 34

1.9 Exercises 37

Chapter 2 Cloud Computing System 39

　2.1 Cloud infrastructure mechanism 39

2.1.1 Logical network boundary 39

2.1.2 Virtual Server 40

2.1.3 Cloud storage devices 41

2.1.4 Cloud usage monitoring 44

2.1.5 Resource Copy 46

2.2.1 Remote management system 47

2.2.2 Resource Management System 48

2.2.3 SLA Management System 49

2.2.4 Billing Management System 49

2.3.1 Encryption 50

2.3.2 Hashing 51

2.3.3 Digital Signature 52

2.3.4 Public Key Infrastructure 53

2.3.6 Single sign-on 54

2.3.7 Cloud-based security groups 55

2.3.8 Hardened Virtual Server Image 56

　2.4 Basic Cloud Architecture 57

2.4.2 Resource Pool Architecture 58

2.4.3 Dynamic Scalable Architecture 58

2.4.4 Flexible resource capacity architecture 59

2.4.5 Service load balancing architecture 60

2.4.7 Elastic Disk Supply Architecture 61

2.4.8 Redundant Storage Architecture 62

2.5 Exercises 63

Chapter 3 Virtualization Technology 65

　3.1 Introduction to Virtualization Technology 65

3.1.1 Definition of virtualization 65

3.1.2 Development of virtualization technology 66

3.1.3 Advantages of virtualization technology 67

3.1.4 Common types of virtualization technology 68

　3.2 Basic knowledge of server virtualization 69

3.2.1 System virtualization 69

3.2.2 Server virtualization 70

3.2.3 Typical Implementation 70

3.2.5 Paravirtualization 72

3.2.6 Mainstream server virtualization technology 73

　3.3 Supporting technology of server virtualization 73

3.3.1 CPU virtualization 73

3.3.2 Memory virtualization 75

3.3.3 Device and I/O virtualization 76

3.3.4 Storage virtualization 78

3.3.5 Network virtualization 78

3.3.6 Desktop virtualization 79

3.4.1 Virtual machine snapshot 80

3.4.2 Rapid deployment and cloning of virtual machines 81

3.4.3 Virtual machine backup 82

3.4.4 Virtualization cluster 82

3.4.5 Hot Adding Virtual Machine Resources 83