cat <<EOF | vdsm-client -f --gluster-enabled - GlusterService get
{
"serviceNames" :  ["glusterd","vdo"]
}
EOF

{
    "services": [
        {
            "message": "",
            "name": "glusterd",
            "status": "RUNNING"
        },
        {
            "message": "",
            "name": "vdo",
            "status": "RUNNING"
        }
    ]
}