def _check_for_out_of_space(self, reason):
        # This can't actually check anything.
        # https://clusterhq.atlassian.net/browse/FLOC-992
        return Failure(MaximumSizeTooSmall())
Translate a ZFS command failure into ``MaximumSizeTooSmall`` if that is
dataset/ETHPy150Open ClusterHQ/flocker/flocker/volume/filesystems/zfs.py/StoragePool._check_for_out_of_space