{
  "node-name": "0123456789ABCDEF0123456789ABCDE",
  "read-only": false,
  "driver": "raw",
  "file": "0123456789ABCDEF0123456789ABCDE"
}
{
  "driver": "file",
  "filename": "/var/lib/libvirt/images/i.img",
  "node-name": "0123456789ABCDEF0123456789ABCDE",
  "auto-read-only": true,
  "discard": "unmap"
}