libvirt/tests/storagepoolxml2xmlout/pool-vstorage.xml

<pool type='vstorage'>
  <name>vstorage</name>
  <uuid>cfd270f9-acc7-4394-8685-4977eb318171</uuid>
  <capacity unit='bytes'>0</capacity>
  <allocation unit='bytes'>0</allocation>
  <available unit='bytes'>0</available>
  <source>
    <name>vzstorage-cluster</name>
  </source>
  <target>
    <path>/mnt/vstorage_cluster</path>
  </target>
</pool>