Novell LINUX ENTERPRISE SERVER 11 - VIRTUALIZATION Manuale utente

SUSE Linux Enterprise

Server

www.novell.com11

May27,2009 Virtualization with Xen

Virtualization with Xen

Legal Notice

This manual is protected under Novell intellectual property rights. By reproducing, duplicating or

distributing this manual you explicitly agree to conform to the terms and conditions of this license

agreement.

This manual may be freely reproduced, duplicated and distributed either as such or as part of a bundled

package in electronic and/or printed format, provided however that the following conditions are ful-

lled:

That this copyright notice and the names of authors and contributors appear clearly and distinctively

on all reproduced, duplicated and distributed copies. That this manual, specically for the printed

format, is reproduced and/or distributed for noncommercial use only. The express authorization of

Novell, Inc must be obtained prior to any other use of any manual or part thereof.

For Novell trademarks, see the Novell Trademark and Service Mark list http://www.novell

.com/company/legal/trademarks/tmlist.html. * Linux is a registered trademark of

Linus Torvalds. All other third party trademarks are the property of their respective owners. A trademark

symbol (®, ™ etc.) denotes a Novell trademark; an asterisk (*) denotes a third party trademark.

All information found in this book has been compiled with utmost attention to detail. However, this

does not guarantee complete accuracy. Neither Novell, Inc., SUSE LINUX Products GmbH, the authors,

nor the translators shall be held liable for possible errors or the consequences thereof.

Contents

About This Manual vii

1Introduction to Xen Virtualization 1

1.1 BasicComponents......................... 1

1.2 Understanding Virtualization Modes . . . . . . . . . . . . . . . . . 2

1.3 Xen Virtualization Architecture . . . . . . . . . . . . . . . . . . . . 3

1.4 The Virtual Machine Host . . . . . . . . . . . . . . . . . . . . . . 4

2Setting Up a Virtual Machine Host 7

2.1 Best Practices and Suggestions . . . . . . . . . . . . . . . . . . . . 8

2.2 Managing Domain 0 Memory . . . . . . . . . . . . . . . . . . . . 9

2.3 Network Card in Fully Virtualized Guests . . . . . . . . . . . . . . . 10

2.4 Starting the Virtual Machine Host . . . . . . . . . . . . . . . . . . 12

2.5 PCIPass-Through......................... 13

3Setting Up Virtual Machines 17

3.1 Creating a Virtual Machine . . . . . . . . . . . . . . . . . . . . . 18

3.2 Installing an Operating System . . . . . . . . . . . . . . . . . . . 19

3.3 Including Add-On Products in the Installation . . . . . . . . . . . . . 24

3.4 Using the Command Line to Create Virtual Machines . . . . . . . . . . 25

3.5 Deleting Virtual Machines . . . . . . . . . . . . . . . . . . . . . 25

3.6 Using an Existing SUSE Linux Enterprise Server Virtual Machine . . . . . 25

3.7 Troubleshooting ......................... 26

4Managing a Virtualization Environment 29

4.1 Virtual Machine Manager . . . . . . . . . . . . . . . . . . . . . 30

4.2 Controlling the Host by Modifying xend Settings . . . . . . . . . . . . 32

4.3 Conguring a Virtual Machine by Modifying its xend Settings . . . . . . 33

4.4 ThexmCommand........................ 34

4.5 Automatic Starting of Domains . . . . . . . . . . . . . . . . . . . 36

4.6 Migrating Xen VM Guest Systems . . . . . . . . . . . . . . . . . . 36

5Virtual Networking 39

5.1 VirtualBridges.......................... 40

5.2 Network Devices for Guest Systems . . . . . . . . . . . . . . . . . 40

5.3 Special Congurations . . . . . . . . . . . . . . . . . . . . . . . 42

6Virtualization: Conguration Options and Settings 47

6.1 Updating SLE 10 VM Host Server Systems to SLE 11 . . . . . . . . . . 47

6.2 VirtualCDReaders........................ 49

6.3 Remote Access Methods . . . . . . . . . . . . . . . . . . . . . . 53

6.4 VNCViewer........................... 54

6.5 The Boot Loader Program . . . . . . . . . . . . . . . . . . . . . 57

6.6 Virtual Machine Initial Startup Files . . . . . . . . . . . . . . . . . 60

6.7 Sparse Image Files and Disk Space . . . . . . . . . . . . . . . . . . 62

6.8 VirtualKeyboards......................... 63

6.9 Mapping Physical Storage to Virtual Disks . . . . . . . . . . . . . . . 65

6.10 VirtualDisks........................... 67

6.11 Migrating Virtual Machines . . . . . . . . . . . . . . . . . . . . . 67

6.12 Passing Key Combinations to Virtual Machines . . . . . . . . . . . . . 68

6.13 xm block-list Device Numbers . . . . . . . . . . . . . . . . . . . . 69

6.14 File-Backed Virtual Disks and Loopback Devices . . . . . . . . . . . . 69

6.15 Saving Virtual Machines . . . . . . . . . . . . . . . . . . . . . . 70

6.16 Restoring Virtual Machines . . . . . . . . . . . . . . . . . . . . . 71

6.17 Virtual Machine States . . . . . . . . . . . . . . . . . . . . . . . 72

7Xen Guest Systems 75

7.1 NetWare Virtual Machines . . . . . . . . . . . . . . . . . . . . . 75

7.2 OES Linux Virtual Machines . . . . . . . . . . . . . . . . . . . . . 75

7.3 Red Hat Linux Virtual Machines . . . . . . . . . . . . . . . . . . . 75

7.4 SUSE Linux Virtual Machines . . . . . . . . . . . . . . . . . . . . 77

7.5 Windows Virtual Machines . . . . . . . . . . . . . . . . . . . . . 84

8Virtual Machine Drivers 85

8.1 Buying a Support Subscription . . . . . . . . . . . . . . . . . . . 86

8.2 Loading the Driver Pack . . . . . . . . . . . . . . . . . . . . . . 87

8.3 SUSE Drivers for Red Hat Enterprise Linux 4 on Xen . . . . . . . . . . 87

8.4 SUSE Drivers for Red Hat Enterprise Linux 5 on Xen . . . . . . . . . . 91

8.5 SUSE Drivers for Windows on Xen . . . . . . . . . . . . . . . . . . 95

8.6 SUSE Drivers for SUSE Linux Enterprise Server on Xen . . . . . . . . . 103

ASXP Conguration Options 105

About This Manual

This manual offers an introduction to virtualization technology of your SUSE Linux

Enterprise Server. It features an overview of the various elds of application and instal-

lation types of each of the platforms supported by SUSE Linux Enterprise Server as

well as a short description of the installation procedure.

Many chapters in this manual contain links to additional documentation resources. This

includes additional documentation that is available on the system as well as documen-

tation available on the Internet.

For an overview of the documentation available for your product and the latest docu-

mentation updates, refer to http://www.novell.com/documentation.

Quality service is also available. Experts can answer questions about installation or

conguration, make reliable security updates available, and support development

projects.

Documentation regarding the Open Enterprise Server 2 is found at http://www

.novell.com/documentation/oes2/index.html.

1 Available Documentation

We provide HTML and PDF versions of our books in different languages. The following

manuals for users and administrators are available on this product:

Deployment Guide (↑Deployment Guide)

Shows how to install single or multiple systems and how to exploit the product

inherent capabilities for a deployment infrastructure. Choose from various approach-

es, ranging from a local installation or a network installation server to a mass de-

ployment using a remote-controlled, highly-customized, and automated installation

technique.

Administration Guide (↑Administration Guide)

Covers system administration tasks like maintaining, monitoring and customizing

an initially installed system.

Security Guide (↑Security Guide)

Introduces basic concepts of system security, covering both local and network se-

curity aspects. Shows how to make use of the product inherent security software

like Novell AppArmor (which lets you specify per program which les the program

may read, write, and execute) or the auditing system that reliably collects informa-

tion about any security-relevant events.

System Analysis and Tuning Guide (↑System Analysis and Tuning Guide)

An administrator's guide for problem detection, resolution and optimization. Find

how to inspect and optimize your system by means of monitoring tools and how

to efciently manage resources. Also contains an overview of common problems

and solutions and of additional help and documentation resources.

Virtualization with Xen (page 1)

Offers an introduction to virtualization technology of your product. It features an

overview of the various elds of application and installation types of each of the

platforms supported by SUSE Linux Enterprise Server as well as a short description

of the installation procedure.

Storage Administration Guide

Provides information about how to manage storage devices on a SUSE Linux En-

terprise Server.

In addition to the comprehensive manuals, several quick start guides are available:

Installation Quick Start (↑Installation Quick Start)

Lists the system requirements and guides you step-by-step through the installation

of SUSE Linux Enterprise Server from DVD, or from an ISO image.

Linux Audit Quick Start

Gives a short overview how to enable and congure the auditing system and how

to execute key tasks such as setting up audit rules, generating reports, and analyzing

the log les.

Novell AppArmor Quick Start

Helps you understand the main concepts behind Novell® AppArmor.

Find HTML versions of most SUSE Linux Enterprise Server manuals in your installed

system under /usr/share/doc/manual or in the help centers of your desktop.

Find the latest documentation updates at http://www.novell.com/

viii Virtualization with Xen

documentation where you can download PDF or HTML versions of the manuals

for your product.

2 Feedback

Several feedback channels are available:

• To report bugs for a product component or to submit enhancement requests, please

use https://bugzilla.novell.com/. If you are new to Bugzilla, you

might nd the Bug Writing FAQs helpful, available from the Novell Bugzilla home

page.

• We want to hear your comments and suggestions about this manual and the other

documentation included with this product. Please use the User Comments feature

at the bottom of each page of the online documentation and enter your comments

there.

3 Documentation Conventions

The following typographical conventions are used in this manual:

•/etc/passwd: directory names and lenames

•placeholder: replace placeholder with the actual value

•PATH: the environment variable PATH

•ls,--help: commands, options, and parameters

•user: users or groups

•Alt,Alt +F1: a key to press or a key combination; keys are shown in uppercase as

on a keyboard

•File,File >Save As: menu items, buttons

•►amd64 em64t: This paragraph is only relevant for the specied architectures.

The arrows mark the beginning and the end of the text block. ◄

About This Manual ix

•Dancing Penguins (Chapter Penguins, ↑Another Manual): This is a reference to a

chapter in another manual.

xVirtualization with Xen

Questo manuale è adatto per i seguenti modelli

Indice

Altri manuali Novell Software

Novell

Novell GROUPWISE 7 - CROSS-PLATFORM Manuale utente

Novell

Novell GROUPWISE 7 - SECURITY POLICIES Manuale utente

Novell

Novell BUSINESS CONTINUITY CLUSTERING 1.0 -... Manuale utente

Novell

Novell OPEN ENTERPRISE SERVER - CONVERSION GUIDE... Manuale utente

Novell

Novell GROUPWISE 7 - POST OFFICES Manuale utente

Novell

Novell ZENWORKS 10 CONFIGURATION MANAGEMENT SP3 - NETWORK DISCOVERY DATABASE... Guida rapida

Novell

Novell IDENTITY MANAGER 3.6.1 Manuale utente

Novell

Novell IFOLDER 3.8 - CROSS-PLATFORM Manuale utente

Novell

Novell ZENWORKS APPLICATION VIRTUALIZATION 8.0.2 - INTEGRATION AND STREAMING GUIDE... Manuale utente

Novell

Novell IDENTITY MANAGER 3.6.1 - PASSWORD MANAGEMENT Manuale utente

Novell

Novell LINUX ENTERPRISE SERVER 10 - ARCHITECTURE-SPECIFIC INFORMATION... Manuale

Novell

Novell IFOLDER 3.8 - CROSS-PLATFORM Manuale utente

Novell

Novell ZENWORKS ENDPOINT SECURITY MANAGEMENT 4.0 -... Manuale utente

Novell

Novell LINUX ENTERPRISE SERVER 10 - STORAGE ADMINISTRATION GUIDE... Manuale di istruzioni

Novell

Novell ZENWORKS 10 CONFIGURATION MANAGEMENT SP3 - PREBOOT SERVICES AND IMAGING REFERENCE 10.3... Manuale utente

Novell

Novell SENTINEL RAPID DEPLOYMENT 6.1 - 06-15-2009 Manuale utente

Novell

Novell LINUX ENTERPRISE DESKTOP 11 - KDE Manuale utente

Novell

Novell LINUX ENTERPRISE DESKTOP 10 SP2 - KDE... Manuale utente

Novell

Novell IMANAGER 2.7.3 Manuale utente

Novell

Novell ZENWORKS 10 CONFIGURATION MANAGEMENT SP3 - NETWORK DISCOVERY DATABASE... Guida rapida

Novell

Novell EDIRECTORY 8.8 - GUIDE Manuale utente

Novell

Novell CLIENT FOR LINUX 2.0 SP3 - 11-2009 Manuale utente

Novell

Novell EDIRECTORY 8.8 SP2 Manuale utente

Novell

Novell ZENWORKS LINUX MANAGEMENT 7.2 IR2 - ... Manuale utente

Manuali Software popolari di altre marche

COMPRO

COMPRO COMPROFM Manuale utente

Muratec

Muratec OFFICEBRIDGE ONLINE Manuale utente

Oracle

Oracle Contact Center Anywhere 8.1 Manuale utente

Adobe

Adobe 65007312 - Photoshop Lightroom Manuale

Avaya

Avaya NULL One-X for RIM Blackberry Manuale utente

HP ProLiant BL420c Manuale utente

PS Audio

PS Audio PowerPlay Manuale del proprietario

Brady

Brady LOCKOUT PRO 3.0 Manuale di servizio

Avaya

Avaya Interaction Center Manuale utente

Texas Instruments

Texas Instruments TI-83 Plus Silver Edition Manuale

Oracle

Oracle Application 9i Manuale utente

Acer

Acer RDM Manuale utente

Canon

Canon Vixia HF21 Manuale utente

Canon

Canon ZR950 Manuale utente

Samsung

Samsung Auto Backup Manuale utente

Polycom

Polycom Vortex EF2201 Istruzioni per l'installazione e il funzionamento

Brocade Communications Systems

Brocade Communications Systems Brocade 8/12c Manuale utente

Lexmark

Lexmark Apps Manuale di servizio