'Fetch the image from image_service and write it to the volume.'

@utils.output_start_end_log
def copy_image_to_volume(self, context, volume, image_service, image_id):

    super(VSPISCSIDriver, self).copy_image_to_volume(context, volume, image_service, image_id)
    self.common.discard_zero_page(volume)
