def test_policy_group_qos_spec_is_adaptive_invalid_spec(self): qos_spec = { 'spec': { 'max_flops': '512', 'policy_name': 'fake_policy_name', } } self.assertFalse(na_utils.is_qos_policy_group_spec_adaptive(qos_spec))
def test_is_qos_policy_group_spec_adaptive_non_adaptive_spec(self): qos_spec = { 'spec': { 'max_throughput': '21834289B/s', 'policy_name': 'fake_policy_name', } } self.assertFalse(na_utils.is_qos_policy_group_spec_adaptive(qos_spec))
def _clone_source_to_destination(self, source, destination_volume): source_size = source['size'] destination_size = destination_volume['size'] source_name = source['name'] destination_name = destination_volume['name'] extra_specs = na_utils.get_volume_extra_specs(destination_volume) qos_policy_group_info = self._setup_qos_for_volume( destination_volume, extra_specs) qos_policy_group_name = (na_utils.get_qos_policy_group_name_from_info( qos_policy_group_info)) qos_policy_group_is_adaptive = ( volume_utils.is_boolean_str( extra_specs.get('netapp:qos_policy_group_is_adaptive')) or na_utils.is_qos_policy_group_spec_adaptive(qos_policy_group_info)) try: self._clone_lun( source_name, destination_name, space_reserved=self.lun_space_reservation, qos_policy_group_name=qos_policy_group_name, qos_policy_group_is_adaptive=qos_policy_group_is_adaptive) if destination_size != source_size: try: self._extend_volume(destination_volume, destination_size, qos_policy_group_name) except Exception: with excutils.save_and_reraise_exception(): LOG.error("Resizing %s failed. Cleaning volume.", destination_volume['id']) self.delete_volume(destination_volume) return self._get_volume_model_update(destination_volume) except Exception: LOG.exception( "Exception cloning volume %(name)s from source " "volume %(source)s.", { 'name': destination_name, 'source': source_name }) self._mark_qos_policy_group_for_deletion(qos_policy_group_info) msg = _("Volume %s could not be created from source volume.") raise exception.VolumeBackendAPIException(data=msg % destination_name)
def test_is_qos_policy_group_spec_adaptive_adaptive_spec(self): aqos_spec = { 'spec': { 'expected_iops': '128IOPS/GB', 'peak_iops': '512IOPS/GB', 'expected_iops_allocation': 'used-space', 'absolute_min_iops': '75IOPS', 'block_size': 'ANY', 'policy_name': 'fake_policy_name', } } self.assertTrue(na_utils.is_qos_policy_group_spec_adaptive(aqos_spec))
def delete_volume(self, volume): """Deletes a logical volume.""" self._delete_backing_file_for_volume(volume) try: qos_policy_group_info = na_utils.get_valid_qos_policy_group_info( volume) is_adaptive = na_utils.is_qos_policy_group_spec_adaptive( qos_policy_group_info) self.zapi_client.mark_qos_policy_group_for_deletion( qos_policy_group_info, is_adaptive) except Exception: # Don't blow up here if something went wrong de-provisioning the # QoS policy for the volume. pass
def manage_existing(self, volume, existing_ref): """Brings an existing storage object under Cinder management. existing_ref can contain source-id or source-name or both. source-id: lun uuid. source-name: complete lun path eg. /vol/vol0/lun. """ lun = self._get_existing_vol_with_manage_ref(existing_ref) extra_specs = na_utils.get_volume_extra_specs(volume) self._check_volume_type_for_lun(volume, lun, existing_ref, extra_specs) qos_policy_group_info = self._setup_qos_for_volume(volume, extra_specs) qos_policy_group_name = (na_utils.get_qos_policy_group_name_from_info( qos_policy_group_info)) is_adaptive = na_utils.is_qos_policy_group_spec_adaptive( qos_policy_group_info) path = lun.get_metadata_property('Path') if lun.name == volume['name']: new_path = path LOG.info( "LUN with given ref %s need not be renamed " "during manage operation.", existing_ref) else: (rest, splitter, name) = path.rpartition('/') new_path = '%s/%s' % (rest, volume['name']) self.zapi_client.move_lun(path, new_path) lun = self._get_existing_vol_with_manage_ref( {'source-name': new_path}) if qos_policy_group_name is not None: self.zapi_client.set_lun_qos_policy_group(new_path, qos_policy_group_name, is_adaptive) self._add_lun_to_table(lun) LOG.info( "Manage operation completed for LUN with new path" " %(path)s and uuid %(uuid)s.", { 'path': lun.get_metadata_property('Path'), 'uuid': lun.get_metadata_property('UUID') }) return self._get_volume_model_update(volume)
def _do_qos_for_volume(self, volume, extra_specs, cleanup=True): try: qos_policy_group_info = na_utils.get_valid_qos_policy_group_info( volume, extra_specs) pool = volume_utils.extract_host(volume['host'], level='pool') qos_min_support = self.ssc_library.is_qos_min_supported(pool) qos_policy_group_is_adaptive = ( volume_utils.is_boolean_str( extra_specs.get('netapp:qos_policy_group_is_adaptive')) or na_utils.is_qos_policy_group_spec_adaptive( qos_policy_group_info)) self.zapi_client.provision_qos_policy_group( qos_policy_group_info, qos_min_support) self._set_qos_policy_group_on_volume(volume, qos_policy_group_info, qos_policy_group_is_adaptive) except Exception: with excutils.save_and_reraise_exception(): LOG.error("Setting QoS for %s failed", volume['id']) if cleanup: LOG.debug("Cleaning volume %s", volume['id']) self._cleanup_volume_on_failure(volume)
def create_volume(self, volume): """Driver entry point for creating a new volume (Data ONTAP LUN).""" LOG.debug('create_volume on %s', volume['host']) # get Data ONTAP volume name as pool name pool_name = volume_utils.extract_host(volume['host'], level='pool') if pool_name is None: msg = _("Pool is not available in the volume host field.") raise exception.InvalidHost(reason=msg) extra_specs = na_utils.get_volume_extra_specs(volume) lun_name = volume['name'] size = int(volume['size']) * units.Gi metadata = { 'OsType': self.lun_ostype, 'SpaceReserved': self.lun_space_reservation, 'Path': '/vol/%s/%s' % (pool_name, lun_name) } qos_policy_group_info = self._setup_qos_for_volume(volume, extra_specs) qos_policy_group_name = (na_utils.get_qos_policy_group_name_from_info( qos_policy_group_info)) qos_policy_group_is_adaptive = ( volume_utils.is_boolean_str( extra_specs.get('netapp:qos_policy_group_is_adaptive')) or na_utils.is_qos_policy_group_spec_adaptive(qos_policy_group_info)) try: self._create_lun(pool_name, lun_name, size, metadata, qos_policy_group_name, qos_policy_group_is_adaptive) except Exception: LOG.exception("Exception creating LUN %(name)s in pool %(pool)s.", { 'name': lun_name, 'pool': pool_name }) self._mark_qos_policy_group_for_deletion(qos_policy_group_info) msg = _("Volume %s could not be created.") raise exception.VolumeBackendAPIException(data=msg % (volume['name'])) LOG.debug('Created LUN with name %(name)s and QoS info %(qos)s', { 'name': lun_name, 'qos': qos_policy_group_info }) metadata['Path'] = '/vol/%s/%s' % (pool_name, lun_name) metadata['Volume'] = pool_name metadata['Qtree'] = None handle = self._create_lun_handle(metadata) self._add_lun_to_table(NetAppLun(handle, lun_name, size, metadata)) model_update = self._get_volume_model_update(volume) return model_update
def _mark_qos_policy_group_for_deletion(self, qos_policy_group_info): is_adaptive = na_utils.is_qos_policy_group_spec_adaptive( qos_policy_group_info) self.zapi_client.mark_qos_policy_group_for_deletion( qos_policy_group_info, is_adaptive)
def test_is_qos_policy_group_spec_adaptive_legacy(self): qos_spec = { 'legacy': fake.LEGACY_QOS, } self.assertFalse(na_utils.is_qos_policy_group_spec_adaptive(qos_spec))
def test_is_qos_policy_group_spec_adaptive_none(self): qos_spec = None self.assertFalse(na_utils.is_qos_policy_group_spec_adaptive(qos_spec))