drive-virtio-disk0
filename    : '/var/lib/libvirt/images/rhel7.3.1483545313'
format node : '#block187'
format drv  : 'qcow2'
storage node: '#block033'
storage drv : 'file'
  filename    : '/var/lib/libvirt/images/rhel7.3.1483536402'
  format node : '#block306'
  format drv  : 'qcow2'
  storage node: '#block220'
  storage drv : 'file'
    filename    : '/var/lib/libvirt/images/rhel7.3.qcow2'
    format node : '#block558'
    format drv  : 'qcow2'
    storage node: '#block481'
    storage drv : 'file'