Cloud Technologies
An Overview of Cloud Computing Technologies for Managers
1. Auflage April 2021
288 Seiten, Hardcover
Wiley & Sons Ltd
CLOUD TECHNOLOGIES
Contains a variety of cloud computing technologies and explores how the cloud can enhance business operations
Cloud Technologies offers an accessible guide to cloud-based systems and clearly explains how these technologies have changed the way organizations approach and implement their computing infrastructure. The author includes an overview of cloud computing and addresses business-related considerations such as service level agreements, elasticity, security, audits, and practical implementation issues. In addition, the book covers important topics such as automation, infrastructure as code, DevOps, orchestration, and edge computing.
Cloud computing fundamentally changes the way organizations think about and implement IT infrastructure. Any manager without a firm grasp of basic cloud concepts is at a huge disadvantage in the modern world. Written for all levels of managers working in IT and other areas, the book explores cost savings and enhanced capabilities, as well as identifies different models for implementing cloud technologies and tackling cloud business concerns. This important book:
* Demonstrates a variety of cloud computing technologies and ways the cloud can enhance business operations
* Addresses data security concerns in cloud computing relevant to corporate data owners
* Shows ways the cloud can save money for a business
* Offers a companion website hosting PowerPoint slides
Written for managers in the fields of business, IT and cloud computing, Cloud Technologies describes cloud computing concepts and related strategies and operations in accessible language.
Acknowledgments
Chapter 1: What is Cloud Computing? 9
Why Cloud Computing? 10
Cloud Computing's Focus 10
Cost Reduction 11
Capacity Planning 13
Organizational Agility 15
How is Cloud Computing Hosted? 16
Private Cloud Deployment 16
Public Cloud Deployment 17
Hybrid Cloud Deployment 17
What are the Different Types of Cloud Solutions? 18
Software as a Service (SaaS) 18
Benefits of SaaS Solutions 19
Platform as a Service (PaaS) 19
Infrastructure as a Service (IaaS) 21
Benefits of IaaS Solutions 23
SaaS vs. PaaS vs. IaaS: A Review 23
Recovery as a Service (RaaS) 24
What are General Benefits of Cloud Services? 25
What are General Disadvantages of Cloud Services? 26
What is the History Behind Cloud Computing? 26
Historic Perspective of Hardware Related to Cloud Computing 29
Historic Perspective of Software Related to Cloud Computing 30
SOA: A new way of doing old things 31
SOA Explained in Terms of Lego Blocks 32
Summary of Chapter 1 34
References 36
Bibliography 36
Chapter 2: Who Uses the Cloud? 38
Individuals Users 38
Public Cloud Subscription Storage for Individuals 40
Private Cloud Storage (PCS) for Individuals 41
Hosted Personal Cloud Storage Using Third Party Hardware 43
Public Cloud vs. Personal Cloud Storage 44
Small and Medium Enterprise (SME) Users 46
How Can Cloud Computing Save SMEs Money? 46
What Cloud Computing Features Appeal to SMEs? 47
SME Cloud Software 48
Corporate Managers and Users 73
Organizational Users of Cloud Computing 74
Summary of Chapter 2 75
References 76
Bibliography 76
Website Bibliography 77
Accounting Software 77
CRM Software 77
Data Analytics 77
ERP for SMEs 77
Help Desk 77
HR Software 78
Office Software 78
Project Management Tools 78
Purchasing and Procurement 78
Social Media 79
Chapter 3: What is Virtualization? 80
Hardware Virtualization 81
Hypervisors 82
Types of Hardware Virtualization 84
Hardware Virtualization Vendors and Products 86
Hardware Virtualization Benefits 87
Operating System Virtualization 88
Operating-system-level Virtualization (Containerization) 89
Containerization software 90
Containers vs. Virtual Machines 92
Container Cloud Practices 93
Storage Virtualization 94
DAS (Direct Attached Storage) 95
SAN (Storage Area Networks) 97
NAS (Network Attached Storage) 98
Storage virtualization techniques 99
Summary of Chapter 3 101
References 101
Bibliography 101
Chapter 4: Can the Cloud Help Operations? 103
Load Balancing 103
Load Balancing Algorithms 105
Hardware versus Software Load Balancing 111
Cloud-based Balancing 112
Cloud Load Balancing versus DNS Load Balancing 113
Scalability and Elasticity 114
Elasticity in Cloud environments 116
Challenges for Elasticity 116
Benefits of Cloud Elasticity 119
Summary of Chapter 4 123
References 124
Bibliography 124
Chapter 5: How are Clouds Managed? 125
Automation 125
Orchestration 126
Automation Tasks 127
Implementing Orchestration with IaC 129
IaC Example 131
IaC Tools 132
Cloud Provider Resource Management 135
Access Control for Resource Management Tools 140
Customized policies 141
APIs and SDKs 141
APIs 141
SDKs 143
SDKs and APIs 143
Cloud Backup and Replication 144
Cloud Backup 144
Cloud Backup Processes 146
Cloud Backup Drawbacks 147
Cloud Backup Vendors 148
Cloud Replication 150
Replication Technologies 152
DRaaS 152
Summary of Chapter 5 154
References 155
Bibliography 155
Website Bibliography 156
Backup Providers 156
DRaaS Providers 156
IaC Providers 157
Chapter 6: What are Cloud Business Concerns? 158
Monitoring and Console Tools 159
Resource Consumption Monitoring 159
Planning for Monitoring 160
Cloud Monitoring Tools 161
Monitoring Challenges 164
Cost monitoring 165
Costs Associated with Zombie Resource Instances 168
Service Level Agreements (SLAs) 171
SLA Sources 171
SLA Components 172
SLA Metrics 173
Other Performance considerations 178
Performance Failure Penalties 178
SLA Data Ownership Clause 179
Data Disposition 181
Data Breaches 182
Governmental Access Requests 183
SLA Revisions 183
Transferring SLAs 184
More on SLAs 184
Billing 185
Amazon Billing 187
Third Party Billing Tools 187
Summary of Chapter 6 188
References 189
Bibliography 189
Website Bibliography 190
Cost and Monitoring Software 190
Zombie Instance Management Software 191
Chapter 7: How are Business Applications in the Cloud Managed Safely? 192
Cloud Vulnerabilities 192
Cloud Security Architecture 193
IaaS Security Architecture 194
PaaS Security Architecture 198
SaaS Security Architecture 201
Access and Identity Control in the Cloud 202
Identity Governance 204
IAM Considerations for Developers 205
Identity Provisioning 206
Cloud Licenses 207
IAM with Third Party Vendors 208
Identity and Access Management Products 211
Identity Management Standards 213
Summary of Chapter 7 217
References 218
Bibliography 219
Website Bibliography 219
Identity Management 219
Chapter 8: What is Cloud Governance? 221
IT Governance Overview 221
IT Governance Boards 223
IT Governance Frameworks 224
IT Governance in the Cloud 232
Choosing a Governance Framework 234
Cloud Risk Factors Related to Governance 234
IT Audit Committees 236
IT Auditor 236
IT Controls 238
End-User Controls 241
Shadow IT 243
Acceptable Risk 244
SOA Governance 245
Ensuring Secure Cloud Data 246
Cloud Provider Data Safety Measures 247
Cloud Encryption 248
Symmetric Key Encryption 250
Asymmetric Key Encryption 251
Other Encryption Methods 254
Secure Sockets Layer (SSL) 254
Key Management 257
Key Management System Products 259
Summary of Chapter 8 260
References 261
Bibliography 261
Chapter 9: What other Services Run in the Cloud? 263
DevOps 263
Cloud-based Problem-Solving Approaches 270
Microservices 274
Cloud Database Applications 276
Cloud Data Models 277
Cloud Database Typical Features 279
DBaaS Product Examples 279
Cloud Analytics Services 282
Hadoop 285
Hadoop in the Cloud 286
Open Source Private Cloud Software 288
OpenStack Overview 289
OpenStack Components 290
Other Services 291
Compute Services 291
Application Services 292
Summary of Chapter 9 292
References 293
Bibliography 293
Website Bibliography 294
Data Analytics Tools 294
DBaaS 294
DevOps 295
Hadoop Competitors 295
Private Clouds 295
Virtual Databases 296
Chapter 10: What is the Cloud Future? 297
NoOps 297
Everything as a Service (EaaS) 298
Zero Knowledge Cloud Storage 298
Serverless Architecture 299
Multicloud 299
Small Business Clouds 300
Machine Learning 300
Internet of Things (IoT) 302
Cloud Computing as a Utility 303
Cloud Streaming Services 303
Edge Computing 303
Fog Computing 304
Summary of Chapter 10 306
References 307
Bibliography 308
Glossary
Index
