Introduction xvii
Chapter 1 Introduction to Technical Design 3
“Do I Know This Already?” Quiz 3Foundation Topics 6
What Is a Technical Design? 6
Where Do We Start? What Are We Doing? 6
What Makes a Good Designer? 6
A Familiar Scenario...? 7
The Technical Design Process 7
Vision 8
Scope 9
Requirements 9
Constraints 9
Assumptions 9
Risks 10
Project Deliverables 10
Building a Realistic and Executable Plan of Approach 11
General Guidelines for a Good Technical Design 12
Learning from Experience 12
Measuring Project Success 13
Exam Preparation Tasks 13
Review All Key Topics 13
Design Scenarios 14
Definitions of Key Terms 14
Read the Technical Material with a Designer’s Hat On 14
Review Questions 15
Chapter 2 Creating a Design 19
“Do I Know This Already?” Quiz 19
Foundation Topic 22
Gathering Information and Spotting the Gaps 22
Presenting the Data Gathered 26
Key Points from the Summary of Stakeholder Interviews 27
Milestone Plan and Technical Approach 28
Milestone Phases 28
Justification for Design Choices 28
Real-Life Tips 29
Exam Preparation Tasks 29
Review All Key Topics 29
Design Scenario 30
Definitions of Key Terms 30
Review Questions 30
Chapter 3 Thoughts on Good Choices for Virtualization and Design 35
“Do I Know This Already?” Quiz 35
Foundation Topics 38
What Makes a Good Choice for Virtualization, and What Is a Good Design? 38
“It’s Okay, We Have HA!” 41
RTO, RPO, and All That Stuff 42
Single Points of Failure and Risk 43
What Is DR, and When Is It Invoked? 45
Platform and Operations: The Roles 45
“Did Someone Change Something on Production?” 47
When to Virtualize? 48
Exam Preparation Tasks 50
Review All Key Topics 50
Design Scenario 50
Definitions of Key Terms 51
Review Questions 52
Chapter 4 Developing a Design on Paper and Delivering It Physically 55
“Do I Know This Already?” Quiz 55
Foundation Topics 60
How to Approach vSphere Technical Design 60
Transitioning to a Physical Design: A Common Approach and Process 61
vSphere Platform Components 63
Design Thoughts, Choices, and Impact Considerations 64
Storage Design: Logical and Physical Approaches 64
Storage Tiering 66
vSphere Storage Design Decisions 69
Design Approaches and Development 70
Developing a Physical Storage Design 71
Examples of Recommended Best Practices 72
Network Design: Logical and Physical Design to Allow Applications to Flow 73
vNetworks: Planning from the Basics 74
Creating a Logical Design 78
Moving from the Logical Design to the Physical Design 81
Compute and Host Design 82
Management/Platform Design 85
The Importance of vMotion, VMware HA, and Fault Tolerance 90
Admission Control, and I Don’t Have the Power, Captain! 91
Restart Priority 92
Guest Machine Placement 93
Now What Do I Do? 93
Exam Preparation Tasks 94
Review All Key Topics 94
Design Scenario 95
Definitions of Key Terms 95
Review Questions 96
Chapter 5 Virtual Machine Design 99
“Do I Know This Already?” Quiz 99
Foundation Topics 104
Virtual Machines—From the Design Perspective 104
It’s All About the Application 105
Design Approaches 107
What Should a VM Contain? 108
Guest Virtual Machine Component Considerations 110
Reservations, Limits, and Shares 111
Network Considerations 112
Storage Considerations 113
CPU Considerations 114
vSphere Platform-wide Considerations 115
Antivirus Solutions for a vSphere Admin 116
vApps 117
OVFs 119
Exam Preparation Tasks 120
Review All Key Topics 120
Design Scenario 120
Define Key Terms 121
Review Questions 121
Question Scenario 122
Chapter 6 Project Execution 125
“Do I Know This Already?” Quiz 125
Foundation Topics 127
Implementation Approach and Order of Delivery 127
Establishing the Order of Delivery 128
Technical Approach 128
Validation, Thoughts, and Processes 130
Going Live and the Bedding-in Period 135
Documentation and Delivery 136
Implementation Plans 137
Installation Guides 137
Exam Preparation Tasks 139
Review All Key Topics 139
Design Scenario 139
Definitions of Key Terms 140
Review Questions 141
Chapter 7 Tips For Passing The Exam 143
The Blueprint 143
Studying for the Test and Real-Life Designing 144
The Exam Design Tool 144
Tips for E-design Tool Questions 145
My VCAP5-DCD Experience 146
Exam Preparation Tasks 147
Final Preparation Tasks 147
Real-Life Tips from Field and Design Defenses 147
Appendix A Answers to the “Do I Know This Already?” Quizzes and Chapter Review
Questions 149
Appendix B Recommended Reading and Assumed Platform Knowledge 153
Section 1: VMware Recommended Reading List 154
Section 2: Assumed Platform Knowledge 155
Section 3: vSphere Design Choice Thoughts 158
Glossary 165
Index 169
Paul McSharry is an independent virtualization consultant and instructor based in the UK. He has been an IT professional for 15 years and now specializes in virtualization technologies and web hosting solutions, working with large retail and financial enterprises. When not working in the field, he is often instructing the VMware-authorized classes for various VMware VATCs. Paul holds a variety of vendor-based IT certifications, such as MCSE, MCITP, VCP, and VCAP, and he is also a qualified IT instructor, holding VMware Certified Instructor (VCI), CompTIA CTT+, and Microsoft MCT credentials. His recent consultancy projects include the following:
¿ Producing a large-scale hybrid cloud platform to deploy and enable secure e-discovery web-based applications for data review
¿ Several large datacenter migrations using various vSphere platforms
¿ Multiple public and private vCloud director platform designs and implementations
¿ Several enterprise-wide VMware view-based VDI deployments
Paul is an active blogger ( http://www.elasticsky.co.uk ) and Twitter user (@pmcsharry). He has also been awarded the vExpert designation for his work in the VMware community for two years running (2012–2013).
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