'Create a cloned volume from an existing one.
No cloning operation in the current release so simply copy using
DD to a new space.  This could be a lengthy operation.'

def create_cloned_volume(self, volume, src_vref):

    volname = self._get_space_name(src_vref)
    self._add_cinder_apphost(volname)
    provider = self.create_volume(volume)
    self._add_cinder_apphost(provider['provider_id'])
    info = self._get_space_size_redundancy(volname)
    volutils.copy_volume(self.local_path(src_vref), ('/dev/' + provider['provider_id']), (info['sizeBytes'] // units.Mi), self.configuration.volume_dd_blocksize, execute=self._execute)
    return provider
