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<disk type='file' device='disk'>
<driver name='qemu' type='qcow2' cache='directsync'/>
<source file='/var/lib/libvirt/images/a'>
<privateData>
<nodenames>
<nodename type='storage' name='node-a-s'/>
<nodename type='format' name='node-a-f'/>
</nodenames>
</privateData>
</source>
<backingStore type='file' index='1'>
<format type='qcow2'/>
<source file='/var/lib/libvirt/images/b'>
<privateData>
<nodenames>
<nodename type='storage' name='node-b-s'/>
<nodename type='format' name='node-b-f'/>
</nodenames>
</privateData>
</source>
<backingStore type='network' index='2'>
<format type='qcow2'/>
<source protocol='nbd' name='images/c'>
<host name='test.org'/>
<privateData>
<nodenames>
<nodename type='storage' name='node-c-s'/>
<nodename type='format' name='node-c-f'/>
</nodenames>
</privateData>
</source>
<backingStore type='file' index='3'>
<format type='raw'/>
<source file='/var/lib/libvirt/images/d'>
<privateData>
<nodenames>
<nodename type='storage' name='node-d-s'/>
<nodename type='format' name='node-d-f'/>
</nodenames>
</privateData>
</source>
<backingStore/>
</backingStore>
</backingStore>
</backingStore>
<target dev='vda'/>
</disk>
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