Starting with GlusterFS 3.4.0 there is a an API which can be used to access files on a GlusterFS volume directly without the FUSE-mount. Qemu supports this starting from version 1.2.0.
= GlusterFS =
Add the following line to the <code>volume management</code> in <code>/etc/glusterfs/glusterd.vol</code> on all involved storage nodes and restart glusterd:
<pre>
option rpc-auth-allow-insecure on
</pre>
plus
run the following command on a gluster node:
<pre>
gluster volume set virtualization server.allow-insecure on
</pre>
= Libvirt =