{
  "node-name": "node-b-f",
  "read-only": false,
  "driver": "qcow2",
  "file": "node-a-s",
  "backing": null
}
{
  "driver": "https",
  "url": "https://host1.example.com:443/something",
  "node-name": "node-a-s",
  "auto-read-only": true,
  "discard": "unmap"
}