'Get the protection domain:storage pool name
From a storage pool id, get the domain name and
storage pool names'

def _get_storage_pool_name(self, pool_id):

    req_vars = {'server_ip': self.server_ip, 'server_port': self.server_port, 'pool_id': pool_id}
    request = ('https://%(server_ip)s:%(server_port)s/api/instances/StoragePool::%(pool_id)s' % req_vars)
    (r, response) = self._execute_scaleio_get_request(request)
    if (r.status_code != http_client.OK):
        msg = (_('Error    getting    pool    name    from    id    %(pool_id)s:    %(err_msg)s.') % {'pool_id': pool_id})
        LOG.error(msg)
        raise exception.VolumeBackendAPIException(data=msg)
    pool_name = response['name']
    domain_id = response['protectionDomainId']
    domain_name = self._get_protection_domain_name(domain_id)
    pool_name = '{}:{}'.format(domain_name, pool_name)
    return pool_name
