Xen Virtualization: A Practical Handbook View Larger Image | Prabhakar Chaganti
PACKT Publishing, Paperback, Published December 2007, 200 pages, ISBN 1847192483 | List Price: $39.99
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Xen is an open-source paravirtualization technology that provides a platform
for running multiple operating systems on one physical hardware resource, while
providing close to native performance. Xen supports several operating systems—Linux,
FreeBSD, Windows, and NetBSD. It enables you to easily test, deploy and run
your software and services on multiple operating systems with resource isolation
and great performance. It is also a terrific way to consolidate your servers,
save hardware and maintenance costs, and minimize downtime. Xen is one of the
most popular open source projects in the world and vendors like IBM, Sun, HP,
RedHat and Novell are working on integrating Xen into their Linux servers.
Xen was originally developed in 2003 at the University of Cambridge Computer
Laboratory and we now have both commercial and free versions of the Xen hypervisor.
The commercial versions are built on top of the open-source version with additional
enterprise features. In this book we explore and use the open-source version
of Xen.
This concise handbook is ideal for professionals who want a user-friendly reference
beside them while they get working with Xen and virtualization. Its easy-to-navigate
content offers bite-sized walkthroughs for a wide variety of common virtualization
tasks using Xen. We use Fedora Core as the host operating system in this book.
The book shows you how to add Xen support to it, leads you through the creation
of guest domains running different operating systems and follows up by dissecting
a range of common virtualization tasks.
What You Will Learn From This Book
• Getting started with virtualization and Xen
• Installing Xen from pre-built packages using yum
• Installing and compile Xen from source
• Running guest domains under Xen:
• Create Ubuntu guest domain using debootstrap
• Create NetBSD domain using install image
• Create a Centos image using Qemu
• Create Slackware domain using domU image from jailtime
• Managing remote Xen instances using:
• Xen manager (xm)
• XenMan
• Virt-manager
• Configuring Xen for networking
• Connecting domains using:
• Bridged networking—uses network bridge and hardware MAC addresses
• Routed networking—uses Dom0 for all traffic
• Implementing storage solutions for guest domains:
• Using Files—file based; perfect for testing
• Using Network File Systems (NFS)—works with remote NFS server
• Using Logical Volume Management (LVM)—for enterprise-grade storage
• Securing your domain by encrypting root file systems
• Plain device mapper-based encryption
• Key-based device mapper encryption using LUKS
• Migrating live domains from one server to another
• Saving and restoring a domain
• Trends and forthcoming advances in the Xen world:
• libvirt to simplify access to virtualization domains in a vendor/hypervisor-independent
way
• VMcasting for transferring virtual machine images from the server to the client
using RSS 2.0
Approach
Each chapter is a collection of practical tasks that demonstrate how to achieve
common virtualization tasks—you then learn how it works so that you can
apply this knowledge to your Xen installation and environment.
Who This Book is Written For
This book is for Linux administrators who want to use Xen virtualization for
development, testing, virtual hosting, or operating systems training.
About the Author
Prabhakar Chaganti is the CTO of HelixBrain—a unique startup that provides
technology services consulting and is also an incubator nurturing some very
cool software as service applications that are being built on the Ruby on Rails
platform. His interests include Linux, Ruby, Python, Java and Virtualization.
He recently won the community choice award for the most innovative virtual appliance
in the 2006 VMWare Ultimate Global Virtual Appliance Challenge.
Customer Reviews
Customer Reviews: 1 Average Customer Rating: Mar 22, 2008 Allen Wouters
Great introduction
This is the first xen book I got that actually clarified things for me on several topics. It is a small book that focuses on specific topics and work thru them. It will get you past the first hurdles with xen, which in my opinion is a bit intimidating to first time users.
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