クラウドコンピューティング市場分析：機会、課題、展望...市場調査レポートについてご紹介

Chapter 1: Introduction 6
1.1 Executive Summary 6
2 Overview 11
2.1 Cloud Architecture 13
2.2 Software Defined Networks 15
2.3 Virtualization 16
2.3.1 Virtualization Architecture 20
2.3.1.1 Hosted Architecture: 20
2.3.1.2 Bare-Metal Architecture: 22
2.3.2 Application Programming Interfaces (API) 24
3 Business Drivers for Cloud Computing 26
3.1 Managed Services 26
3.2 Disaster Recovery 28
3.2.1 Flexible Operation 30
3.2.2 Public Cloud 31
3.2.3 Private Cloud 32
3.2.4 Hybrid Cloud 35
3.3 Cloud Service Models 36
3.3.1 Computing as a Utility 36
3.3.2 Infrastructure as a Service (IaaS) 37
3.3.3 Platform as a Service (PaaS) 38
3.3.4 Software as a Service (SaaS) 39
4 Cloud Opportunities 40
4.1.1 Expenditure Reduction 40
4.1.2 Decrease Capital Costs 41
4.2 Decrease Operational Expense 42
4.3 Improve Desktop Support 43
4.3.1 Opportunity 43
4.4 Solutions 44
4.5 Improve Accessibility 44
4.5.1 Opportunity 45
4.6 Solutions 45
4.6.1 Mobility and Broadband 45
4.6.2 Identity Management 46
4.7 Improve Operational and Service Delivery Scalability 48
4.8 Outsource to the Cloud and Focus on Core Competencies 49
5 Cloud Challenges 50
5.1 Security 50
5.2 Availability and Reliability 53
5.3 Regulatory Hurdles 53
6 Termination and Renewal of the Contract 58
6.1 Effect of Termination 58
6.2 Interoperability and Portability 59
7 Analysis of Major Cloud Services Providers 61
7.1 Oracle 61
7.2 IBM 63
8 Outlook for the Enterprise 65
8.1 Evolution of Enterprise Operations and Service Delivery 65
8.2 The Move towards Hybrid Solutions and Virtualization 67
9 Conclusions and Recommendations 69
10 Appendix: Multitenant Cloud Hosting 72
10.1 Multitenant Cloud Solutions 72
10.2 Distinguishing Characteristics of the Multitenant Environment? 73
10.3 Multitenancy Improved Business for Cloud Service Providers 75
10.4 Adaptable in any Cloud Delivery Model 76
10.5 Multitenancy Leverages Use of Cloud Service Models 78
10.6 Multitenant Clouds provide Scalable Enterprise Growth 80

Figures

Figure 1: Cloud Computing Architecture 13
Figure 2: Controller as Interface between Physical Network and SDN Layer 16
Figure 3: Hosted Virtual Structure 21
Figure 4: Bare Metal Virtualization Structure 23
Figure 5: Hybrid Cloud, Warm Disaster Recovery 30
Figure 6: Non-redundant Private Cloud 33
Figure 7: Shared Services/Outsourcing Drives the Need for a Global Business Services Framework 67