<sources>
  <source>
    <host name='testhost'/>
    <dir path='aaa'/>
    <format type='glusterfs'/>
  </source>
  <source>
    <host name='testhost'/>
    <dir path='test'/>
    <format type='glusterfs'/>
  </source>
  <source>
    <host name='testhost'/>
    <dir path='test1'/>
    <format type='glusterfs'/>
  </source>
</sources>