protocol: { "driver": "gluster", "location": { "volume": "asdf", "path": "i.qcow2", "server": [ { "type": "inet", "host": "example.com", "port": "1234" }, { "type": "inet", "host": "alternate.example.com", "port": "3214" } ] }, "size": 42 } format: { "driver": "qcow2", "file": "0123456789ABCDEF0123456789ABCDE", "size": 1337 }