6.12. Virtual Machine Resources
Virtual machine resources are configured differently than other cluster resources. In particular, they are not grouped into service definitions. As of the Red Hat Enterprise Linux 6.2 release, when you configure a virtual machine in a cluster with the
ccs
command you can use the --addvm
(rather than the addservice
option). This ensures that the vm
resource is defined directly under the rm
configuration node in the cluster configuration file.
A virtual machine resource requires at least a
name
and a path
attribute. The name
attribute should match the name of the libvirt
domain and the path
attribute should specify the directory where the shared virtual machine definitions are stored.
Note
The
path
attribute in the cluster configuration file is a path specification or a directory name, not a path to an individual file.
If virtual machine definitions are stored on a shared directory named
/mnt/vm_defs
, the following command will define a virtual machine named guest1
:
# ccs -h node1.example.com --addvm guest1 path=/mnt/vm_defs
Running this command adds the following line to the
rm
configuration node in the cluster.conf
file:
<vm name="guest1" path="/mnt/vm_defs"/>