PDF《Virtualization》

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4 01_131565 ffirs_4.qxp 8/13/07 11:07 AM Page ii Publisher'

s Acknowledgments We'

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Licenses@ Wiley.com. Some of the people who helped bring this book to market include the following: Acquisitions, Editorial, and Media Development Project Editor: Jennifer Bingham Business Development Representative: Karen Hattan Editorial Manager: Rev Mengle Media Development Manager: Laura VanWinkle Composition Services Project Coordinator: Kristie Rees Layout and Graphics: Brooke Graczyk, Denny Hager, Stephanie D. Jumper, Erin Zeltner Proofreaders: Susan Moritz, Dwight Ramsey Wiley Bicentennial Logo: Richard J. Pacifico AMD Liaison: Adam Black Publishing and Editorial for Technology Dummies Richard Swadley, Vice President and Executive Group Publisher Andy Cummings, Vice President and Publisher Mary Bednarek, Executive Acquisitions Director Mary C. Corder, Editorial Director Publishing for Consumer Dummies Diane Graves Steele, Vice President and Publisher Joyce Pepple, Acquisitions Director Composition Services Gerry Fahey, Vice President of Production Services Debbie Stailey, Director of Composition Services 01_131565 ffirs.qxp 12/29/06 9:38 PM Page iii 01_131565 ffirs.qxp 12/29/06 9:38 PM Page iv Table of Contents Introduction

1 About This Book

2 About AMD.2 Foolish Assumptions

3 How This Book Is Organized.3 Chapter 1: The Roots of Virtualization

4 Chapter 2: Making Better Use of Your Systems with Virtualization

4 Chapter 3: Understanding Three Approaches to Virtualization

4 Chapter 4: Living in the Virtualization Ecosystem.......4 Chapter 5: Ten Great Reasons to Invest in Virtualization Hardware.5 Icons Used in This Book.5 Chapter 1: The Roots of Virtualization.7 Coming Up with the Concept

8 Virtualizing Memory.9 Allocating memory the old way.10 A better way of allocating memory

10 Completing the solution

12 Chapter 2: Making Better Use of Your Systems with Virtualization

13 What Does Virtualization Deliver?13 Who Needs Virtualization Technology?14 Addressing low utilization

14 Enabling the dynamic data center.15 Working to avoid risk

16 Other cool benefits.17 Streamlining Application Development

18 Migrating More Effectively.18 Creating Virtual Desktop Environments

19 Providing Better Security.19 On the client side.19 On the server side

20 02_131565 ftoc_4.qxp 8/13/07 2:08 PM Page v Chapter 3: Understanding Three Approaches to Virtualization

21 What the Approaches Share.22 Approach 1: Full Virtualization

22 The good news.22 The bad news.23 Approach 2: Paravirtualization

23 The good news.24 The bad news.24 Approach 3: Hardware-Assisted Virtualization.25 The good news.26 The bad news.27 Chapter 4: Living in the Virtualization Ecosystem . . . .

29 Benefiting from a Functioning Ecosystem

29 Where Things Are Going

30 AMD'

s Real Roadmap for Virtual Technology

31 AMD: Enhancing software-based virtualization.32 Getting outstanding performance with hardware virtualization

32 Going further with I/O virtualization technology ......33 Not stopping yet

34 The Future Virtually at Your Fingers

35 Chapter 5: Ten Great Reasons to Invest in Virtualization Hardware.37 Create a Dynamic Data Center

37 Help Ease Power Consumption and Stay Cool.38 Provide Better Security.39 Run Legacy Software on Non-Legacy Hardware.40 Develop and Test New Stuff Easil........