Commit bf6fe28b authored by Alexander Schreiber's avatar Alexander Schreiber
Browse files

HVM proof-of-concept documentation

Update documentation to document the HVM proof-of-concept.

Reviewed-by: iustinp
parent 2a6469d5
......@@ -249,6 +249,21 @@
</screen>
</para>
</formalpara>
<para>
If you want to test the experimental HVM support
with Ganeti and want VNC access to the console of your
instances, set the following two entries in
<filename>/etc/xen/xend-config.sxp</filename>:
<screen>
(vnc-listen '0.0.0.0')
(vncpasswd '')
</screen>
You need to restart the Xen daemon for these settings to
take effect:
<screen>
/etc/init.d/xend restart
</screen>
</para>
</sect3>
......@@ -735,6 +750,24 @@ gnt-cluster init <replaceable>CLUSTERNAME</replaceable>
to <computeroutput>gnt-cluster init</computeroutput>.
</para>
<para>
To set up the cluster as an HVM cluster, use the
<option>--hypervisor=xen-hvm3.1</option> option to use
the Xen 3.1 HVM hypervisor. Note that with the
experimental HVM support, you will only be able to create
HVM instances in a cluster set to this hypervisor type. Mixed
PVM/HVM clusters are not supported by the Ganeti 1.2
experimental HVM support. You will also need to create the VNC
cluster password file
<filename>/etc/ganeti/vnc-cluster-password</filename>
which contains one line with the default VNC password for the
cluster. Finally, you need to provide an installation ISO
image for HVM instance which will not only be mapped to the
first CDROM of the instance, but which the instance will also
boot from. This ISO image is expected at
<filename>/srv/ganeti/iso/hvm-install.iso</filename>.
</para>
<para>
You can also invoke the command with the
<option>--help</option> option in order to see all the
......
......@@ -236,6 +236,17 @@
The <option>-b</option> option specifies the default bridge
for instances.
</para>
<para>
The <option>-t</option> allows to set the hypervisor type of
the cluster. Available hypervisor types are: xen-3.0, fake and
xen-hvm3.1. The default is the xen-3.0 hypervisor.
Note that if you init the cluster with hypervisor-type
xen-hvm3.1 you also need to provide the cluster VNC password
file <filename>/etc/ganeti/vnc-cluster-password</filename> and
the HVM boot ISO image
<filename>/srv/ganeti/iso/hvm-install.iso</filename> because
instances created by the experimental HVM support require them.
</para>
</refsect2>
<refsect2>
......
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