In this
chapter, we will explore the different tools that are available to manage Xen and
the Xen domains. The first tool that we will explore is the Xen Manager (xm),
which ships as a part of the Xen distribution. This enables you to perform various
administrative and management tasks through the command line. We will also look
at two other third party tools??”XenMan and Virt-Manager??”which are graphical
applications for managing Xen.
We will explore the following tools for managing Xen:
xm
XenMan
virt-manager
Xen Domain Configuration Files
The domain configuration file for a Xen domain specifies the various parameters
that govern the behavior of the domain. The various files related to configuring Xen
are located in the /etc/xen directory. The configuration file, which contains various
options in the key=value format is an executable file written in Python. The options
must therefore be in valid Python code. The /etc/xen/xend-config.sxp is a special
configuration file that is used for creating dom0.
The configuration files for the domUs that you are creating can be placed
anywhere as long as you provide the full path to the file when creating the domain.
The /etc/xen/auto is a special directory and any domain configuration files that are
placed in this directory will automatically be started when the xend daemon starts.
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Managing Xen
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Here are some of the common options specified in a Xen domain configuration file:
kernel: The kernel image that is used for the domain is provided as the
complete path to the kernel image file.
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