libvirt/tests/qemuxmlconfdata/disk-network-nfs.xml

<domain type='qemu'>
  <name>QEMUGuest1</name>
  <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
  <memory unit='KiB'>219136</memory>
  <currentMemory unit='KiB'>219136</currentMemory>
  <vcpu placement='static'>1</vcpu>
  <os>
    <type arch='x86_64' machine='pc'>hvm</type>
    <boot dev='hd'/>
  </os>
  <clock offset='utc'/>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>destroy</on_crash>
  <devices>
    <emulator>/usr/bin/qemu-system-x86_64</emulator>
    <disk type='network' device='disk'>
      <driver name='qemu' type='raw' cache='none'/>
      <source protocol='nfs' name='/foo/bar/baz'>
        <host name='example.com'/>
        <identity user='+6234' group='+12354'/>
      </source>
      <target dev='vda' bus='virtio'/>
      <serial>eb90327c-8302-4725-9e1b-4e85ed4dc251</serial>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
    </disk>
    <disk type='network' device='disk'>
      <driver name='qemu' type='qcow2'/>
      <source protocol='nfs' name='/Volume2/Image'>
        <host name='example.org'/>
      </source>
      <backingStore type='network'>
        <format type='qcow2'/>
        <source protocol='nfs' name='/backing/store/nfs'>
          <host name='example.org'/>
          <identity user='+1234' group='+5678'/>
        </source>
        <backingStore/>
      </backingStore>
      <target dev='vdb' bus='virtio'/>
    </disk>
    <controller type='usb' index='0'/>
    <controller type='pci' index='0' model='pci-root'/>
    <input type='mouse' bus='ps2'/>
    <input type='keyboard' bus='ps2'/>
    <memballoon model='none'/>
  </devices>
</domain>