Architecting the Cloud - Design Decisions for Cloud Computing Service Models Saas, Paas, Iaas

An expert guide to selecting the right cloud service model for your business
 
Cloud computing is all the rage, allowing for the delivery of computing and storage capacity to a diverse community of end-recipients. However, before you can decide on a cloud model, you need to determine what the ideal cloud service model is for your business. Helping you cut through all the haze, Architecting the Cloud is vendor neutral and guides you in making one of the most critical technology decisions that you will face: selecting the right cloud service model(s) based on a combination of both business and technology requirements.
* Guides corporations through key cloud design considerations
* Discusses the pros and cons of each cloud service model
* Highlights major design considerations in areas such as security, data privacy, logging, data storage, SLA monitoring, and more
* Clearly defines the services cloud providers offer for each service model and the cloud services IT must provide
 
Arming you with the information you need to choose the right cloud service provider, Architecting the Cloud is a comprehensive guide covering everything you need to be aware of in selecting the right cloud service model for you.

List of contents

Foreword xiii
 
Preface xv
 
Acknowledgments xix
 
About the author xxi
 
Chapter 1 Why Cloud, Why Now? 1
 
Evolution of Cloud Computing 3
 
Enter the Cloud 6
 
Start-Up Case Study: Instagram, from Zero to a Billion Overnight 8
 
Established Company Case Study: Netflix, Shifting from On-Premises to the Cloud 9
 
Government Case Study: NOAA, E-mail, and Collaboration in the Cloud 10
 
Not-for-Profit Case Study: Obama Campaign, Six-Month Shelf-Life with One Big Peak 10
 
Summary 11
 
Chapter 2 Cloud Service Models 13
 
Infrastructure as a Service 13
 
Platform as a Service 15
 
Software as a Service 17
 
Deployment Models 18
 
Summary 22
 
Chapter 3 Cloud Computing Worst Practices 23
 
Avoiding Failure When Moving to the Cloud 23
 
Migrating Applications to the Cloud 23
 
Misguided Expectations 27
 
Misinformed about Cloud Security 29
 
Selecting a Favorite Vendor, Not an Appropriate Vendor 31
 
Outages and Out-of-Business Scenarios 31
 
Underestimating the Impacts of Organizational Change 33
 
Skills Shortage 35
 
Misunderstanding Customer Requirements 36
 
Unexpected Costs 37
 
Summary 39
 
Chapter 4 It Starts with Architecture 41
 
The Importance of Why, Who, What, Where, When, and How 41
 
Start with the Business Architecture 43
 
Identify the Problem Statement (Why) 47
 
Evaluate User Characteristics (Who) 48
 
Identify Business and Technical Requirements (What) 48
 
Visualize the Service Consumer Experience (Where) 49
 
Identify the Project Constraints (When and with What) 51
 
Understand Current State Constraints (How) 52
 
Summary 54
 
Chapter 5 Choosing the Right Cloud Service Model 55
 
Considerations when Choosing a Cloud Service Model 56
 
When to Use SaaS 59
 
When to Use PaaS 62
 
When to Use IaaS 65
 
Common Cloud Use Cases 68
 
Summary 69
 
Chapter 6 The Key to the Cloud: RESTful Services 71
 
Why REST? 72
 
The Challenges of Migrating Legacy Systems to the Cloud 74
 
Summary 75
 
Chapter 7 Auditing in the Cloud 77
 
Data and Cloud Security 78
 
Auditing Cloud Applications 78
 
Regulations in the Cloud 80
 
Audit Design Strategies 83
 
Summary 85
 
Chapter 8 Data Considerations in the Cloud 87
 
Data Characteristics 87
 
Multitenant or Single Tenant 92
 
Choosing Data Store Types 95
 
Summary 98
 
Chapter 9 Security Design in the Cloud 99
 
The Truth about Data in the Cloud 100
 
How Much Security Is Required 101
 
Responsibilities for Each Cloud Service Model 104
 
Security Strategies 108
 
Areas of Focus 110
 
Summary 118
 
Chapter 10 Creating a Centralized Logging Strategy 119
 
Log File Uses 119
 
Logging Requirements 120
 
Summary 124
 
Chapter 11 SLA Management 127
 
Factors That Impact SLAs 127
 
Defining SLAs 130
 
Managing Vendor SLAs 132
 
Summary 135
 
Chapter 12 Monitoring Strategies 137
 
Proactive vs. Reactive Monitoring 137
 
What Needs to Be Monitored? 138
 
Monitoring Strategies by Category 139
 
Monitoring by Cloud Service Level 145
 
Summary 147
 
Chapter 13 Disaster Recovery Planning 149
 
What Is the Cost of Downtime? 149
 
Disaster Recovery Strategies for IaaS 151

About the author

MICHAEL J. KAVIS is Principal Architect at Cloud Technology Partners, a vendor independent, cloud-exclusive, nimble alternative to large technology consultants. He has served in numerous technical roles such as CTO, Chief Architect, and Vice President and has over 25 years of experience in software development and architecture. Kavis is a pioneer in cloud computing and led a team that built the world's first high-speed transaction network in Amazon's public cloud. He is the former CTO of startup M-Dot Network, which won the 2010 Amazon AWS Global Startup Challenge.

Summary

An expert guide to selecting the right cloud service model for your business Cloud computing is all the rage, allowing for the delivery of computing and storage capacity to a diverse community of end-recipients. However, before you can decide on a cloud model, you need to determine what the ideal cloud service model is for your business.

Report

"...an invaluable guide to anyone looking to understand how to effectively deploy cloud technologies" (RSA Conference, September 2014)

Product details

• Authors: Michael J Kavis, Michael J. Kavis
• Publisher: Wiley, John and Sons Ltd
• Languages: English
• Product format: Hardback
• Released: 20.03.2014
• EAN: 9781118617618
• ISBN: 978-1-118-61761-8
• No. of pages: 224
• Dimensions: 160 mm x 240 mm x 25 mm
• Series: Wiley CIO
• Subjects: Guides; Natural sciences, medicine, IT, technology > IT, data processing > Miscellaneous