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Published:
December 5, 2007

Virtualization For Dummies

Overview

Virtualization has become a “megatrend”—and for good reason. Implementing virtualization allows for more efficient utilization of network server capacity, simpler storage administration, reduced energy costs, and better use of corporate capital. In other words: virtualization helps you save money, energy, and space. Not bad, huh?

If you’re thinking about “going virtual” but have the feeling everyone else in the world understands exactly what that means while you’re still virtually in the dark, take heart. Virtualization for Dummies gives you a thorough introduction to this hot topic and helps you evaluate if making the switch to a virtual environment is right for you.

This fun and friendly guide starts with a detailed overview of exactly what virtualization is and exactly how it works, and then takes you on a tour of the benefits

of a virtualized environment, such as added space in overcrowded data centers, lower operations costs through more efficient infrastructure administration, and reduced energy costs through server consolidation.

Next, you’ll get step-by-step guidance on how to:

  • Perform a server virtualization cost versus benefit analysis
  • Weigh server virtualization options
  • Choose hardware for your server virtualization project
  • Create a virtualized software environment
  • Migrate to—and manage—your new virtualized environment

Whether you’re an IT manager looking to sell the idea to your boss, or just want to learn more about how to create, migrate to, and successfully manage a virtualized environment, Virtualization for Dummies is your go-to guide for virtually everything you need to know.

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About The Author

Bernard Golden has been called “a renowned open source expert” (IT Business Edge) and “an open source guru” (SearchCRM.com) and is regularly featured in magazines like Computerworld, InformationWeek, and Inc. His blog “The Open Source” is one of the most popular features of CIO Magazine’s Web site. Bernard is a frequent speaker at industry conferences like LinuxWorld, the Open Source Business Conference, and the Red Hat Summit. He is the author of Succeeding with Open Source, (Addison-Wesley, 2005, published in four languages), which is used in over a dozen university open source programs throughout the world. Bernard is the CEO of Navica, a Silicon Valley IT management consulting firm.

Sample Chapters

virtualization for dummies

CHEAT SHEET

Virtualization saves money, energy, and space. After you’ve decided to go virtual, take steps to make implementation easier. Get to know some important terms about virtualization, types of virtualization, and leading companies and products in virtualization.Reasons for moving to virtualizationIf you’re trying to decide if virtualization is right for your organization, whether from an economic or technological standpoint, consider these reasons for taking the virtualization plunge: It saves money: Virtualization reduces the number of servers you have to run, which means savings on hardware costs and also on the total amount of energy needed to run hardware and provide cooling.

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Once you’ve decided on switching to a virtualized environment, where do you go for solutions, support and products? This list represents the major players in virtualization: VMware: The big daddy of the field. Provides hardware emulation virtualization products called VMware Server and ESX Server. Xen: A new open source contender.
If you’re trying to decide if virtualization is right for your organization, whether from an economic or technological standpoint, consider these reasons for taking the virtualization plunge: It saves money: Virtualization reduces the number of servers you have to run, which means savings on hardware costs and also on the total amount of energy needed to run hardware and provide cooling.
Currently, most of the activity in the virtualization world focuses on server virtualization —– the data centers or server farms. The three main types of server virtualization are: Operating system virtualization (aka containers): Creates self-contained representations of underlying operating system in order to provide applications in isolated execution environments.
Virtualization saves money, energy, and space. After you’ve decided to go virtual, take steps to make implementation easier. Get to know some important terms about virtualization, types of virtualization, and leading companies and products in virtualization.Reasons for moving to virtualizationIf you’re trying to decide if virtualization is right for your organization, whether from an economic or technological standpoint, consider these reasons for taking the virtualization plunge: It saves money: Virtualization reduces the number of servers you have to run, which means savings on hardware costs and also on the total amount of energy needed to run hardware and provide cooling.
To help you get a better understanding and expand your knowledge of virtualization, get to know these useful terms and how they apply to virtualization and its process: Bare metal: Virtualized servers in which the virtualization software is installed directly on the machine rather than on an operating system. Because it installs on the machine, it is said to reside on “bare metal.
After you’ve evaluated virtualization and want to move forward with it, it’s time to implement a virtualization plan. Don’t jump right in, the first steps are to create a virtualization project using these five steps: Evaluate your current server workloads. Determine whether virtualization can help you and figure out what your potential virtualization use cases might be.
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