Understanding Virtualization Modes - Novell LINUX ENTERPRISE SERVER 11 - VIRTUALIZATION Manual

• The SUSE Linux operating system, which gives the administrator a graphical
• The xend daemon (xend), which stores configuration information about each
• A modified version of QEMU, which is an open-source software program that
Xen-Based Virtual Machines
A Xen-based virtual machine, also referred to as a VM Guest or DomU consists
of the following components:
• At least one virtual disk that contains a bootable operating system. The virtual
• Virtual machine configuration information, which can be modified by exporting
Management Tools, Commands, and Configuration Files
There is a combination of GUI tools, commands, and configuration files to help
you manage and customize your virtualization environment.
1.2 Understanding Virtualization
Guest operating systems are hosted on virtual machines in either full virtualization
mode or paravirtual mode. Each virtualization mode has advantages and disadvantages.
2 Virtualization with Xen
and command line environment to manage the virtual machine host components
and its virtual machines.
NOTE
The term "Domain0" refers to a special domain that provides the manage-
ment environment. This may be run either in graphical or in command
line mode.
virtual machine and controls how virtual machines are created and managed.
emulates a full computer system, including a processor and various peripherals.
It provides the ability to host operating systems in full virtualization mode.
disk can be based on a file, partition, volume, or other type of block device.
a text-based configuration file from xend or through Virtual Machine Manager.
Modes