Open Stack

Hello everyone,I would be sure that my VM use libgfapi to access the storage .
I put this directive into nova.conf of my compute nodes :
qemu_allowed_storage_drivers = gluster
I configured the nova's brick with options : server.allow-insecure on, rpc-auth-allow-insecure on and storage.owner-uid and gid set to nova uid and gid.
But when I launch an instance is always generated with this xml :
root at nodo-4:~# virsh -r dumpxml instance-0000002c | grep disk     <disk type='file' device='disk'>       <source file='/var/lib/nova/instances/ef84920d-2009-42a2-90de-29d9bd5e8512/disk'/>       <alias name='virtio-disk0'/>     </disk>
That look like a fuse connection
Can someone show me how to confgure nova to use libgfapi ?
Many many thanks.
P
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstack.org/pipermail/openstack/attachments/20150324/a3ea0a57/attachment.html>