def get_volumes_for_sdc(self, sdcObj):
        """
        :param sdcObj: SDC object
        :return: list of Volumes attached to SDC
        :rtyoe: ScaleIO Volume object
        """
        self.conn.connection._check_login()
        all_volumes = []
        response = self.conn.connection._do_get("{}/{}{}/{}".format(self.conn.connection._api_url, 'instances/Sdc::', sdcObj.id, 'relationships/Volume')).json()
        for sdc_volume in response:
            all_volumes.append(
                Volume.from_dict(sdc_volume)
            )
        return all_volumes