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For example, to pass Ctrl + Alt + F2 to a Linux virtual machine, press Ctrl three times,
then press Alt + F2 . You can also press Alt three times, then press Ctrl + F2 .
The sticky key functionality is available in the Virtual Machine Manager during and
after installing a virtual machine.
9.5 Monitoring Xen
For a regular operation of many virtual guests, having a possibility to check the sanity
of all the different VM Guest systems indispensable. Xen offers several tools besides
the system tools to gather information about the system.
9.5.1 Monitor Xen with virt-manager
After starting virt-manager and connecting to the VM Host Server, an overview
of the CPU usage of all the running guests is displayed.
It is also possible to get information about disk and network usage with this tool, how-
ever, you must first activate this in the preferences:
1 Run virt-manager and connect to the VM Host Server system.
2 Select Edit > Preferences.
3 Change the tab from General to Stats.
4 Activate the check boxes for Disk I/O and Network I/O.
5 If desired, also change the update interval or the number of samples that are kept
in the history.
Afterwards, the disk and network statistics are also displayed in the main window of
the Virtual Machine Manager.
To get more precise data of the respective machine, select the machine, click Open and
then Details. The statistics are displayed from the Performance entry of the left-hand
tree menu.
Administration Tasks
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