Transcription
ewlett-PackardCompliments of Hition3rd HP Special EdGet the lowdown on virtualizationIf you think virtualization deserves a closer look,and you want to know how to implement it inyour organization, Virtualization For Dummies,3rd HP Special Edition, can help you out. This newlyupdated edition gives you an introduction to thesubject so that you can understand its promiseand perils — and create an action plan to decidewhether virtualization is right for you. This bookhelps you sort out the hope from the hype andgives you tools to feel confident in making yourvirtualization decisions. Tackle virtualization basics — from emergingtrends to reasons why virtualization is hot todayOpen the book and find: Helpful case studies Explanations of commonvirtualization technologiesand applications How to optimize qualityof servicenoitazilVirtua Great ways to getvirtualization rolling Info about HP technologythat can help Sort out virtualization technology — severaldifferent “flavors” of virtualization exist Figure out how to use it — certain environmentsare better for virtualization than others Understand some HP technology — HP is hereto help you out with virtualization and someof their technology is particularly suited to itMaking Everything Easier! Learn to: Differentiate among thedifferent types of virtualization Get the help you need — how to know when tocall in the prosGo to Dummies.com for videos, step-by-step examples,how-to articles, or to shop!978-0-470-94331-1Client part number: 4AA1-3661ENWNot for resale Build a business case forvirtualization Avoid some well-known pitfallsBernard Golden
About HPHP creates new possibilities for technology to have a meaningful impact onpeople, businesses, governments, and society. The world’s largest technologycompany, HP brings together a portfolio that spans printing, personal computing,software, services, and IT infrastructure to solve customer problems. Moreinformation about HP (NYSE: HPQ) is available at http://www.hp.com/.Virtualization is a key enabler of HP Converged Infrastructure and the Instant-OnEnterprise, which embeds technology into everything it does to make products,services, and information faster, more reliable and providing value to everytouch point. HP has a broad portfolio of virtualization solutions that helpcustomers accelerate the move from high-cost IT silos to low cost, pooled ITassets in order to optimize their infrastructures to increase IT efficiency andflexibility and improve quality of service. More information is available athttp://www.hp.com/go/virtualization.These materials are the copyright of Wiley Publishing, Inc. and anydissemination, distribution, or unauthorized use is strictly prohibited.
VirtualizationFORDUMmIES‰3RD HP SPECIAL EDITIONThese materials are the copyright of Wiley Publishing, Inc. and anydissemination, distribution, or unauthorized use is strictly prohibited.
These materials are the copyright of Wiley Publishing, Inc. and anydissemination, distribution, or unauthorized use is strictly prohibited.
VirtualizationFORDUMmIES‰3RD HP SPECIAL EDITIONby Bernard GoldenThese materials are the copyright of Wiley Publishing, Inc. and anydissemination, distribution, or unauthorized use is strictly prohibited.
Virtualization For Dummies , 3rd HP Special EditionPublished byWiley Publishing, Inc.111 River StreetHoboken, NJ 07030-5774www.wiley.comCopyright 2011 by Wiley Publishing, Inc., Indianapolis, IndianaPublished by Wiley Publishing, Inc., Indianapolis, IndianaNo part of this publication may be reproduced, stored in a retrieval system or transmitted in anyform or by any means, electronic, mechanical, photocopying, recording, scanning or otherwise,except as permitted under Sections 107 or 108 of the 1976 United States Copyright Act, without theprior written permission of the Publisher. Requests to the Publisher for permission should beaddressed to the Permissions Department, John Wiley & Sons, Inc., 111 River Street, Hoboken, NJ07030, (201) 748-6011, fax (201) 748-6008, or online at http://www.wiley.com/go/permissions.Trademarks: Wiley, the Wiley Publishing logo, For Dummies, the Dummies Man logo, A Referencefor the Rest of Us!, The Dummies Way, Dummies.com, Making Everything Easier, and related tradedress are trademarks or registered trademarks of John Wiley & Sons, Inc. and/or its affiliates in theUnited States and other countries, and may not be used without written permission. HP and the HPlogo are trademarks of Hewlett-Packard Development Company, L.P. All other trademarks are theproperty of their respective owners. Wiley Publishing, Inc., is not associated with any product orvendor mentioned in this book.LIMIT OF LIABILITY/DISCLAIMER OF WARRANTY: THE PUBLISHER AND THE AUTHOR MAKENO REPRESENTATIONS OR WARRANTIES WITH RESPECT TO THE ACCURACY ORCOMPLETENESS OF THE CONTENTS OF THIS WORK AND SPECIFICALLY DISCLAIM ALLWARRANTIES, INCLUDING WITHOUT LIMITATION WARRANTIES OF FITNESS FOR APARTICULAR PURPOSE. NO WARRANTY MAY BE CREATED OR EXTENDED BY SALES ORPROMOTIONAL MATERIALS. THE ADVICE AND STRATEGIES CONTAINED HEREIN MAY NOT BESUITABLE FOR EVERY SITUATION. THIS WORK IS SOLD WITH THE UNDERSTANDING THATTHE PUBLISHER IS NOT ENGAGED IN RENDERING LEGAL, ACCOUNTING, OR OTHERPROFESSIONAL SERVICES. IF PROFESSIONAL ASSISTANCE IS REQUIRED, THE SERVICES OF ACOMPETENT PROFESSIONAL PERSON SHOULD BE SOUGHT. NEITHER THE PUBLISHER NORTHE AUTHOR SHALL BE LIABLE FOR DAMAGES ARISING HEREFROM. THE FACT THAT ANORGANIZATION OR WEBSITE IS REFERRED TO IN THIS WORK AS A CITATION AND/OR APOTENTIAL SOURCE OF FURTHER INFORMATION DOES NOT MEAN THAT THE AUTHOR ORTHE PUBLISHER ENDORSES THE INFORMATION THE ORGANIZATION OR WEBSITE MAYPROVIDE OR RECOMMENDATIONS IT MAY MAKE. FURTHER, READERS SHOULD BE AWARETHAT INTERNET WEBSITES LISTED IN THIS WORK MAY HAVE CHANGED OR DISAPPEAREDBETWEEN WHEN THIS WORK WAS WRITTEN AND WHEN IT IS READ.For general information on our other products and services, please contact our Business DevelopmentDepartment in the U.S. at 317-572-3205. For details on how to create a custom For Dummies book foryour business or organization, contact info@dummies.biz. For information about licensing the ForDummies brand for products or services, contact BrandedRights&Licenses@Wiley.com.ISBN: 978-0-470-94331-1Manufactured in the United States of America10 9 8 7 6 5 4 3 2 1These materials are the copyright of Wiley Publishing, Inc. and anydissemination, distribution, or unauthorized use is strictly prohibited.
Publisher’s AcknowledgmentsWe’re proud of this book and of the people who worked on it. For details on how tocreate a custom For Dummies book for your business or organization, contact info@dummies.biz. For details on licensing the For Dummies brand for products or services, contact BrandedRights&Licenses@Wiley.com.Some of the people who helped bring this book to market include the following:Acquisitions, Editorial, and MediaDevelopmentProject Editor: Jennifer BinghamEditorial Manager: Rev MengleBusiness Development Representative:Karen HattanCustom Publishing Project Specialist:Michael SullivanComposition ServicesProject Coordinator: Kristie ReesLayout and Graphics:Samantha K. CherolisProofreader: Dwight RamseyPublishing and Editorial for Technology DummiesRichard Swadley, Vice President and Executive Group PublisherAndy Cummings, Vice President and PublisherMary Bednarek, Executive Director, AcquisitionsMary C. Corder, Editorial DirectorPublishing and Editorial for Consumer DummiesDiane Graves Steele, Vice President and Publisher, Consumer DummiesComposition ServicesDebbie Stailey, Director of Composition ServicesBusiness DevelopmentLisa Coleman, Director, New Market and Brand DevelopmentThese materials are the copyright of Wiley Publishing, Inc. and anydissemination, distribution, or unauthorized use is strictly prohibited.
These materials are the copyright of Wiley Publishing, Inc. and anydissemination, distribution, or unauthorized use is strictly prohibited.
Table of ContentsIntroduction. 1About This Book . 1Icons Used in This Book . 2Chapter 1: Why You Need Virtualization. . . . . . . . . . . . . .3Why Virtualization Is Hot, Hot, Hot . 4Underutilized hardware . 4Data centers run out of space . 4Energy costs go through the roof . 5IT operations costs mount . 5Virtualization Increases Business Agility. 5Virtualization Increases IT Operational Flexibility . 6Virtualization Reduces IT Operations Costs . 6Quality of Service . 8High Availability . 8Disaster Recovery . 8End-User Manageability and Security . 9Virtualization Is Green. 10Chapter 2: Understanding VirtualizationTechnologies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13Server Virtualization . 13Hardware emulation . 14Paravirtualization . 15Virtualization players . 16Storage Virtualization . 16Network-attached storage . 17Storage area networks . 18I/O Virtualization . 18Network Virtualization . 19Client Virtualization . 19Application virtualization . 20Desktop virtualization . 20Desktop streaming . 21These materials are the copyright of Wiley Publishing, Inc. and anydissemination, distribution, or unauthorized use is strictly prohibited.
viiiVirtualization For Dummies, 3rd HP Special EditionChapter 3: Understanding Virtualization Use Cases . . .23Studying Server Consolidation . 23Development and Test Environments . 24Private Cloud Computing . 26Quality of Service . 26Simple failover. 27High availability . 27Clustering. 29Data mirroring . 30Data replication. 31IT Operational Flexibility . 31Load balancing . 32Server pooling . 32Helping with Disaster Recovery . 33Chapter 4: Game-Changing Resultsfrom Virtualization . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35Converged Infrastructure . 36Consolidated IT Operations Management . 43Client Virtualization from Desktop to Data Center . 45Chapter 5: When to Ask for Expert Help . . . . . . . . . . . . .51Mitigating Enterprise-Wide Deployment Risks. 51Making Smart Technology Decisions . 52Remembering Skill Mix and Re-Skilling Needed . 52Chapter 6: Ten Steps to Your NextVirtualization Project . . . . . . . . . . . . . . . . . . . . . . . . . . .53Remember That Virtualization Is a Journey,Not a Product. 53Evaluate Your Use Cases. 54Review Your Operations Organization Structure . 55Define Your Architecture . 55Select Virtualization Software . 56Select Virtualization Hardware . 56Perform a Pilot Implementation . 56Implement Your Production Environment . 57Put Governance and Policy in Place . 57Manage Your Virtualized Infrastructure . 58These materials are the copyright of Wiley Publishing, Inc. and anydissemination, distribution, or unauthorized use is strictly prohibited.
Table of ContentsChapter 7: Ten Virtualization Pitfalls to Avoid. . . . . . . .59Don’t Wait for Perfection . 59Don’t Skimp on Training . 59Don’t Expose Yourself to Legal Issues: Compliance. 60Don’t Imagine That Virtualization Is Static . 60Don’t Skip the “Boring Stuff” .
Go to Dummies.com for videos, step-by-step examples, . Virtualization is a key enabler of HP Converged Infrastructure and the Instant-On Enterprise, which embeds technology into everything it does to make products, services, and information faster, more reliable and providing value to every touch point. HP has a broad portfolio of virtualization solutions that help customers accelerate .
