drive-sata0-0-0
filename    : '/var/lib/libvirt/images/a.qcow2'
format node : '#block132'
format drv  : 'qcow2'
storage node: '#block020'
storage drv : 'file'
  filename    : '/var/lib/libvirt/images/base.qcow2'
  format node : '#block320'
  format drv  : 'qcow2'
  storage node: '#block224'
  storage drv : 'file'

drive-sata0-0-1
filename    : '/var/lib/libvirt/images/b.qcow2'
format node : '#block548'
format drv  : 'qcow2'
storage node: '#block487'
storage drv : 'file'
  filename    : '/var/lib/libvirt/images/base.qcow2'
  format node : '#block771'
  format drv  : 'qcow2'
  storage node: '#block692'
  storage drv : 'file'