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Un d er sta n d w h y vir tu al iza ti on
V i r t u a l i z a t i o n
S u n a n d A M D S p e c i a l E d i t i o n
Find out how
Sun and AMD
technologies work
together!
A Reference
for the
Rest of Us! ®
FREE eTips at dummies.com ®
Bernard Golden
Clark Scheffy
i s so i m p o r t an t
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Virtualization
FOR
DUMmIES
SUN AND AMD SPECIAL EDITION
Bernard Golden and Clark Scheffy
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Virtualization For Dummies , Sun and AMD Special Edition
Published by
Wiley Publishing, Inc.
111 River Street
Hoboken, NJ 07030-5774
Copyright © 2008 by Wiley Publishing, Inc., Indianapolis, Indiana
Published by Wiley Publishing, Inc., Indianapolis, Indiana
No part of this publication may be reproduced, stored in a retrieval system or transmitted in any
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affiliates in the United States and other countries, and may not be used without written permission.
AMD, the AMD Arrow logo, AMD Opteron, AMD Virtualization, AMD-V, and combinations thereof are
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Publisher’s Acknowledgments
Project Editor: Jennifer Bingham
Editorial Manager: Rev Mengle
Sun Contributors: Laura Davenport, Julianne Raedeke, Tina Shibue, Vijay Sarathay,
Henry Kennedy, Michael Nalls, Amy Ahlers, Lisa Clark, Mark Thacker, Cindy Gallie,
Allison Michlig, Frances Sun
AMD Contributors: Valeri Reeder, Steve Demski, Jeff Jones
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Introduction
V irtualization is the latest in a long line of technical inno-
At its simplest level, virtualization allows you, virtually and
cost-effectively, to have two or more computers, running two
or more completely different environments, on one piece of
hardware. For example, with virtualization, you can have both
a Linux machine and a Windows machine on one system.
Alternatively, you could host a Windows 95 desktop and a
Windows XP desktop on one workstation.
In slightly more technical terms, virtualization essentially
decouples users and applications from the specific hardware
characteristics of the systems they use to perform computa-
tional tasks. This technology promises to usher in an entirely
new wave of hardware and software innovation. For example,
and among other benefits, virtualization is designed to sim-
plify system upgrades (and in some cases may eliminate the
need for such upgrades), by allowing users to capture the
state of a virtual machine (VM), and then transport that state
in its entirety from an old to a new host system.
Virtualization is also designed to enable a generation of more
energy-efficient computing. Processor, memory, and storage
resources that today must be delivered in fixed amounts
determined by real hardware system configurations will be
delivered with finer granularity via dynamically tuned VMs.
About This Book
Virtualization For Dummies, Sun and AMD Special Edition
explains how virtualization works and how it can benefit your
organization. The book covers the kinds of issues virtualiza-
tion can address and how it addresses them.
vations designed to increase the level of system abstrac-
tion and enable IT users to harness ever-increasing levels of
computer performance.
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Virtualization For Dummies, Sun and AMD Special Edition
Icons Used in This Book
In the margins of this book, you find several helpful little icons
that can make your journey a little easier:
This icon flags information that you should pay attention to.
This icon lets you know that the accompanying text explains
some technical information in detail. You don’t need to know
this stuff to get what you need from the book, but it may be
interesting.
A Tip icon lets you know some practical information that can
really help you out is on the way. These tips can help save you
time, effort, or money.
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