def _migrate_volume(self, volume, host, new_type=None): if not self._check_migration_valid(host, volume): return (False, None) type_id = volume['volume_type_id'] volume_type = None if type_id: volume_type = volume_types.get_volume_type(None, type_id) pool_name = host['capabilities']['pool_name'] pools = self.restclient.find_all_pools() pool_info = self.restclient.find_pool_info(pool_name, pools) src_volume_name = huawei_utils.encode_name(volume['id']) dst_volume_name = six.text_type(hash(src_volume_name)) src_id = volume.get('provider_location', None) src_lun_params = self.restclient.get_lun_info(src_id) opts = None qos = None if new_type: # If new type exists, use new type. opts = huawei_utils._get_extra_spec_value( new_type['extra_specs']) opts = smartx.SmartX().get_smartx_specs_opts(opts) if 'LUNType' not in opts: opts['LUNType'] = huawei_utils.find_luntype_in_xml( self.xml_file_path) qos = huawei_utils.get_qos_by_volume_type(new_type) elif volume_type: qos = huawei_utils.get_qos_by_volume_type(volume_type) if not opts: opts = huawei_utils.get_volume_params(volume) opts = smartx.SmartX().get_smartx_specs_opts(opts) lun_info = self._create_lun_with_extra_feature(pool_info, dst_volume_name, src_lun_params, opts) lun_id = lun_info['ID'] if qos: LOG.info(_LI('QoS: %s.'), qos) SmartQos = smartx.SmartQos(self.restclient) SmartQos.create_qos(qos, lun_id) if opts: smartpartition = smartx.SmartPartition(self.restclient) smartpartition.add(opts, lun_id) smartcache = smartx.SmartCache(self.restclient) smartcache.add(opts, lun_id) dst_id = lun_info['ID'] self._wait_volume_ready(dst_id) moved = self._migrate_lun(src_id, dst_id) return moved, {}
def remove_qos_lun(self, lun_id, qos_id): lun_list = self.restclient.get_lun_list_in_qos(qos_id) lun_count = len(lun_list) if lun_count <= 1: qos = smartx.SmartQos(self.restclient) qos.delete_qos(qos_id) else: self.restclient.remove_lun_from_qos(lun_id, lun_list, qos_id)
def _delete_lun_with_check(self, dst_id): LOG.info(_LI("Try to delete lun %s if it exists."), dst_id) if self.restclient.check_lun_exist(dst_id): qos_id = self.restclient.get_qosid_by_lunid(dst_id) if qos_id: qos = smartx.SmartQos(self.restclient) qos.delete_qos(qos_id) self.restclient.delete_lun(dst_id)
def modify_lun(self, lun_id, change_opts): if change_opts.get('partitionid', None): old, new = change_opts['partitionid'] old_id = old[0] old_name = old[1] new_id = new[0] new_name = new[1] if old_id: self.restclient.remove_lun_from_partition(lun_id, old_id) if new_id: self.restclient.add_lun_to_partition(lun_id, new_id) LOG.info(_LI("Retype LUN(id: %(lun_id)s) smartpartition from " "(name: %(old_name)s, id: %(old_id)s) to " "(name: %(new_name)s, id: %(new_id)s) success."), {"lun_id": lun_id, "old_id": old_id, "old_name": old_name, "new_id": new_id, "new_name": new_name}) if change_opts.get('cacheid', None): old, new = change_opts['cacheid'] old_id = old[0] old_name = old[1] new_id = new[0] new_name = new[1] if old_id: self.restclient.remove_lun_from_cache(lun_id, old_id) if new_id: self.restclient.add_lun_to_cache(lun_id, new_id) LOG.info(_LI("Retype LUN(id: %(lun_id)s) smartcache from " "(name: %(old_name)s, id: %(old_id)s) to " "(name: %(new_name)s, id: %(new_id)s) successfully."), {'lun_id': lun_id, 'old_id': old_id, "old_name": old_name, 'new_id': new_id, "new_name": new_name}) if change_opts.get('policy', None): old_policy, new_policy = change_opts['policy'] self.restclient.change_lun_smarttier(lun_id, new_policy) LOG.info(_LI("Retype LUN(id: %(lun_id)s) smarttier policy from " "%(old_policy)s to %(new_policy)s success."), {'lun_id': lun_id, 'old_policy': old_policy, 'new_policy': new_policy}) if change_opts.get('qos', None): old_qos, new_qos = change_opts['qos'] old_qos_id = old_qos[0] old_qos_value = old_qos[1] if old_qos_id: self.remove_qos_lun(lun_id, old_qos_id) if new_qos: smart_qos = smartx.SmartQos(self.restclient) smart_qos.create_qos(new_qos, lun_id) LOG.info(_LI("Retype LUN(id: %(lun_id)s) smartqos from " "%(old_qos_value)s to %(new_qos)s success."), {'lun_id': lun_id, 'old_qos_value': old_qos_value, 'new_qos': new_qos})
def create_volume(self, volume): """Create a volume.""" opts = huawei_utils.get_volume_params(volume) smartx_opts = smartx.SmartX().get_smartx_specs_opts(opts) params = huawei_utils.get_lun_params(self.xml_file_path, smartx_opts) pool_name = volume_utils.extract_host(volume['host'], level='pool') pools = self.restclient.find_all_pools() pool_info = self.restclient.find_pool_info(pool_name, pools) if not pool_info: # The following code is to keep compatibility with old version of # Huawei driver. pool_names = huawei_utils.get_pools(self.xml_file_path) for pool_name in pool_names.split(";"): pool_info = self.restclient.find_pool_info(pool_name, pools) if pool_info: break volume_name = huawei_utils.encode_name(volume['id']) volume_description = volume['name'] volume_size = huawei_utils.get_volume_size(volume) LOG.info(_LI('Create volume: %(volume)s, size: %(size)s.'), { 'volume': volume_name, 'size': volume_size }) params['pool_id'] = pool_info['ID'] params['volume_size'] = volume_size params['volume_description'] = volume_description # Prepare LUN parameters. lun_param = huawei_utils.init_lun_parameters(volume_name, params) # Create LUN on the array. lun_info = self.restclient.create_volume(lun_param) lun_id = lun_info['ID'] try: qos = huawei_utils.get_volume_qos(volume) if qos: smart_qos = smartx.SmartQos(self.restclient) smart_qos.create_qos(qos, lun_id) smartpartition = smartx.SmartPartition(self.restclient) smartpartition.add(opts, lun_id) smartcache = smartx.SmartCache(self.restclient) smartcache.add(opts, lun_id) except Exception as err: self._delete_lun_with_check(lun_id) raise exception.InvalidInput( reason=_('Create volume error. Because %s.') % err) return { 'provider_location': lun_info['ID'], 'ID': lun_id, 'lun_info': lun_info }
def create_volume(self, volume): """Create a volume.""" opts = huawei_utils.get_volume_params(volume) smartx_opts = smartx.SmartX().get_smartx_specs_opts(opts) params = huawei_utils.get_lun_params(self.xml_file_path, smartx_opts) pool_name = volume_utils.extract_host(volume['host'], level='pool') pools = self.restclient.find_all_pools() pool_info = self.restclient.find_pool_info(pool_name, pools) if not pool_info: msg = (_('Error in getting pool information for the pool: %s.') % pool_name) LOG.error(msg) raise exception.VolumeBackendAPIException(data=msg) volume_name = huawei_utils.encode_name(volume['id']) volume_description = volume['name'] volume_size = huawei_utils.get_volume_size(volume) LOG.info(_LI( 'Create volume: %(volume)s, size: %(size)s.'), {'volume': volume_name, 'size': volume_size}) params['pool_id'] = pool_info['ID'] params['volume_size'] = volume_size params['volume_description'] = volume_description # Prepare LUN parameters. lun_param = huawei_utils.init_lun_parameters(volume_name, params) # Create LUN on the array. lun_info = self.restclient.create_volume(lun_param) lun_id = lun_info['ID'] try: qos = huawei_utils.get_volume_qos(volume) if qos: smart_qos = smartx.SmartQos(self.restclient) smart_qos.create_qos(qos, lun_id) smartpartition = smartx.SmartPartition(self.restclient) smartpartition.add(opts, lun_id) smartcache = smartx.SmartCache(self.restclient) smartcache.add(opts, lun_id) except Exception as err: if lun_id: self._delete_lun_with_check(lun_id) raise exception.InvalidInput( reason=_('Create volume error. Because %s.') % err) return {'provider_location': lun_info['ID'], 'ID': lun_id, 'lun_info': lun_info}