{
			 'mntpoint' => 'disk_lvm',
                         'size' => 204796557, 
			 'type' =>  0x8e,
			 'hd' => 'sda' 
			 },
			 { 
			 'VG_name' => 'xen_disk',
			 'parts' => 'disk_lvm' 
			 },