'Returns the mounted Quobyte volume.
Multiple shares are not supported because the virtualization of
multiple storage devices is taken care of at the level of Quobyte USP.
For different types of volumes e.g., SSD vs. rotating disks, use
multiple backends in Cinder.
:param volume: the volume to be created.'

def _find_share(self, volume):

    if (not self._mounted_shares):
        raise exception.NotFound()
    assert (len(self._mounted_shares) == 1), 'There    must    be    exactly    one    Quobyte    volume.'
    target_volume = self._mounted_shares[0]
    LOG.debug('Selected    %s    as    target    Quobyte    volume.', target_volume)
    return target_volume
