1403 lines
54 KiB
Python
1403 lines
54 KiB
Python
# Copyright (c) 2014 Alex Meade. All rights reserved.
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# Copyright (c) 2014 Clinton Knight. All rights reserved.
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# Copyright (c) 2015 Tom Barron. All rights reserved.
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# Copyright (c) 2016 Mike Rooney. All rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import copy
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import math
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import re
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from oslo_log import log as logging
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import six
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from cinder import exception
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from cinder.i18n import _, _LW, _LE
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from cinder import utils
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from cinder.volume.drivers.netapp.dataontap.client import api as netapp_api
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from cinder.volume.drivers.netapp.dataontap.client import client_base
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from cinder.volume.drivers.netapp import utils as na_utils
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from oslo_utils import strutils
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LOG = logging.getLogger(__name__)
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DELETED_PREFIX = 'deleted_cinder_'
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DEFAULT_MAX_PAGE_LENGTH = 50
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@six.add_metaclass(utils.TraceWrapperMetaclass)
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class Client(client_base.Client):
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def __init__(self, **kwargs):
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super(Client, self).__init__(**kwargs)
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self.vserver = kwargs.get('vserver', None)
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self.connection.set_vserver(self.vserver)
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# Default values to run first api
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self.connection.set_api_version(1, 15)
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(major, minor) = self.get_ontapi_version(cached=False)
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self.connection.set_api_version(major, minor)
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self._init_features()
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def _init_features(self):
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super(Client, self)._init_features()
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ontapi_version = self.get_ontapi_version() # major, minor
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ontapi_1_20 = ontapi_version >= (1, 20)
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ontapi_1_2x = (1, 20) <= ontapi_version < (1, 30)
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ontapi_1_30 = ontapi_version >= (1, 30)
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ontapi_1_100 = ontapi_version >= (1, 100)
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self.features.add_feature('USER_CAPABILITY_LIST',
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supported=ontapi_1_20)
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self.features.add_feature('SYSTEM_METRICS', supported=ontapi_1_2x)
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self.features.add_feature('FAST_CLONE_DELETE', supported=ontapi_1_30)
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self.features.add_feature('SYSTEM_CONSTITUENT_METRICS',
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supported=ontapi_1_30)
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self.features.add_feature('ADVANCED_DISK_PARTITIONING',
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supported=ontapi_1_30)
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self.features.add_feature('BACKUP_CLONE_PARAM', supported=ontapi_1_100)
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def _invoke_vserver_api(self, na_element, vserver):
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server = copy.copy(self.connection)
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server.set_vserver(vserver)
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result = server.invoke_successfully(na_element, True)
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return result
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def _has_records(self, api_result_element):
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num_records = api_result_element.get_child_content('num-records')
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return bool(num_records and '0' != num_records)
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def _get_record_count(self, api_result_element):
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try:
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return int(api_result_element.get_child_content('num-records'))
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except TypeError:
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msg = _('Missing record count for NetApp iterator API invocation.')
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raise exception.NetAppDriverException(msg)
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def set_vserver(self, vserver):
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self.connection.set_vserver(vserver)
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def send_iter_request(self, api_name, api_args=None, enable_tunneling=True,
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max_page_length=DEFAULT_MAX_PAGE_LENGTH):
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"""Invoke an iterator-style getter API."""
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if not api_args:
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api_args = {}
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api_args['max-records'] = max_page_length
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# Get first page
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result = self.send_request(
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api_name, api_args, enable_tunneling=enable_tunneling)
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# Most commonly, we can just return here if there is no more data
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next_tag = result.get_child_content('next-tag')
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if not next_tag:
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return result
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# Ensure pagination data is valid and prepare to store remaining pages
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num_records = self._get_record_count(result)
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attributes_list = result.get_child_by_name('attributes-list')
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if not attributes_list:
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msg = _('Missing attributes list for API %s.') % api_name
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raise exception.NetAppDriverException(msg)
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# Get remaining pages, saving data into first page
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while next_tag is not None:
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next_api_args = copy.deepcopy(api_args)
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next_api_args['tag'] = next_tag
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next_result = self.send_request(
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api_name, next_api_args, enable_tunneling=enable_tunneling)
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next_attributes_list = next_result.get_child_by_name(
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'attributes-list') or netapp_api.NaElement('none')
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for record in next_attributes_list.get_children():
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attributes_list.add_child_elem(record)
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num_records += self._get_record_count(next_result)
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next_tag = next_result.get_child_content('next-tag')
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result.get_child_by_name('num-records').set_content(
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six.text_type(num_records))
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result.get_child_by_name('next-tag').set_content('')
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return result
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def get_iscsi_target_details(self):
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"""Gets the iSCSI target portal details."""
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iscsi_if_iter = netapp_api.NaElement('iscsi-interface-get-iter')
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result = self.connection.invoke_successfully(iscsi_if_iter, True)
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tgt_list = []
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num_records = result.get_child_content('num-records')
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if num_records and int(num_records) >= 1:
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attr_list = result.get_child_by_name('attributes-list')
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iscsi_if_list = attr_list.get_children()
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for iscsi_if in iscsi_if_list:
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d = dict()
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d['address'] = iscsi_if.get_child_content('ip-address')
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d['port'] = iscsi_if.get_child_content('ip-port')
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d['tpgroup-tag'] = iscsi_if.get_child_content('tpgroup-tag')
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d['interface-enabled'] = iscsi_if.get_child_content(
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'is-interface-enabled')
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tgt_list.append(d)
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return tgt_list
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def set_iscsi_chap_authentication(self, iqn, username, password):
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"""Provides NetApp host's CHAP credentials to the backend."""
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initiator_exists = self.check_iscsi_initiator_exists(iqn)
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command_template = ('iscsi security %(mode)s -vserver %(vserver)s '
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'-initiator-name %(iqn)s -auth-type CHAP '
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'-user-name %(username)s')
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if initiator_exists:
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LOG.debug('Updating CHAP authentication for %(iqn)s.',
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{'iqn': iqn})
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command = command_template % {
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'mode': 'modify',
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'vserver': self.vserver,
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'iqn': iqn,
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'username': username,
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}
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else:
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LOG.debug('Adding initiator %(iqn)s with CHAP authentication.',
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{'iqn': iqn})
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command = command_template % {
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'mode': 'create',
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'vserver': self.vserver,
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'iqn': iqn,
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'username': username,
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}
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try:
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with self.ssh_client.ssh_connect_semaphore:
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ssh_pool = self.ssh_client.ssh_pool
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with ssh_pool.item() as ssh:
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self.ssh_client.execute_command_with_prompt(ssh,
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command,
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'Password:',
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password)
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except Exception as e:
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msg = _('Failed to set CHAP authentication for target IQN %(iqn)s.'
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' Details: %(ex)s') % {
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'iqn': iqn,
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'ex': e,
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}
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LOG.error(msg)
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raise exception.VolumeBackendAPIException(data=msg)
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def check_iscsi_initiator_exists(self, iqn):
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"""Returns True if initiator exists."""
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initiator_exists = True
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try:
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auth_list = netapp_api.NaElement('iscsi-initiator-get-auth')
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auth_list.add_new_child('initiator', iqn)
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self.connection.invoke_successfully(auth_list, True)
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except netapp_api.NaApiError:
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initiator_exists = False
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return initiator_exists
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def get_fc_target_wwpns(self):
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"""Gets the FC target details."""
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wwpns = []
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port_name_list_api = netapp_api.NaElement('fcp-port-name-get-iter')
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port_name_list_api.add_new_child('max-records', '100')
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result = self.connection.invoke_successfully(port_name_list_api, True)
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num_records = result.get_child_content('num-records')
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if num_records and int(num_records) >= 1:
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for port_name_info in result.get_child_by_name(
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'attributes-list').get_children():
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if port_name_info.get_child_content('is-used') != 'true':
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continue
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wwpn = port_name_info.get_child_content('port-name').lower()
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wwpns.append(wwpn)
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return wwpns
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def get_iscsi_service_details(self):
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"""Returns iscsi iqn."""
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iscsi_service_iter = netapp_api.NaElement('iscsi-service-get-iter')
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result = self.connection.invoke_successfully(iscsi_service_iter, True)
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if result.get_child_content('num-records') and\
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int(result.get_child_content('num-records')) >= 1:
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attr_list = result.get_child_by_name('attributes-list')
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iscsi_service = attr_list.get_child_by_name('iscsi-service-info')
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return iscsi_service.get_child_content('node-name')
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LOG.debug('No iSCSI service found for vserver %s', self.vserver)
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return None
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def get_lun_list(self):
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"""Gets the list of LUNs on filer.
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Gets the LUNs from cluster with vserver.
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"""
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luns = []
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tag = None
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while True:
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api = netapp_api.NaElement('lun-get-iter')
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api.add_new_child('max-records', '100')
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if tag:
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api.add_new_child('tag', tag, True)
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lun_info = netapp_api.NaElement('lun-info')
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lun_info.add_new_child('vserver', self.vserver)
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query = netapp_api.NaElement('query')
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query.add_child_elem(lun_info)
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api.add_child_elem(query)
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result = self.connection.invoke_successfully(api, True)
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if result.get_child_by_name('num-records') and\
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int(result.get_child_content('num-records')) >= 1:
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attr_list = result.get_child_by_name('attributes-list')
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luns.extend(attr_list.get_children())
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tag = result.get_child_content('next-tag')
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if tag is None:
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break
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return luns
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def get_lun_map(self, path):
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"""Gets the LUN map by LUN path."""
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tag = None
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map_list = []
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while True:
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lun_map_iter = netapp_api.NaElement('lun-map-get-iter')
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lun_map_iter.add_new_child('max-records', '100')
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if tag:
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lun_map_iter.add_new_child('tag', tag, True)
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query = netapp_api.NaElement('query')
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lun_map_iter.add_child_elem(query)
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query.add_node_with_children('lun-map-info', **{'path': path})
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result = self.connection.invoke_successfully(lun_map_iter, True)
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tag = result.get_child_content('next-tag')
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if result.get_child_content('num-records') and \
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int(result.get_child_content('num-records')) >= 1:
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attr_list = result.get_child_by_name('attributes-list')
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lun_maps = attr_list.get_children()
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for lun_map in lun_maps:
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lun_m = dict()
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lun_m['initiator-group'] = lun_map.get_child_content(
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'initiator-group')
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lun_m['lun-id'] = lun_map.get_child_content('lun-id')
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lun_m['vserver'] = lun_map.get_child_content('vserver')
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map_list.append(lun_m)
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if tag is None:
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break
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return map_list
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def _get_igroup_by_initiator_query(self, initiator, tag):
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igroup_get_iter = netapp_api.NaElement('igroup-get-iter')
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igroup_get_iter.add_new_child('max-records', '100')
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if tag:
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igroup_get_iter.add_new_child('tag', tag, True)
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query = netapp_api.NaElement('query')
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igroup_info = netapp_api.NaElement('initiator-group-info')
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query.add_child_elem(igroup_info)
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igroup_info.add_new_child('vserver', self.vserver)
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initiators = netapp_api.NaElement('initiators')
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igroup_info.add_child_elem(initiators)
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igroup_get_iter.add_child_elem(query)
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initiators.add_node_with_children(
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'initiator-info', **{'initiator-name': initiator})
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# limit results to just the attributes of interest
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desired_attrs = netapp_api.NaElement('desired-attributes')
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desired_igroup_info = netapp_api.NaElement('initiator-group-info')
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desired_igroup_info.add_node_with_children(
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'initiators', **{'initiator-info': None})
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desired_igroup_info.add_new_child('vserver', None)
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desired_igroup_info.add_new_child('initiator-group-name', None)
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desired_igroup_info.add_new_child('initiator-group-type', None)
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desired_igroup_info.add_new_child('initiator-group-os-type', None)
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desired_attrs.add_child_elem(desired_igroup_info)
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igroup_get_iter.add_child_elem(desired_attrs)
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return igroup_get_iter
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def get_igroup_by_initiators(self, initiator_list):
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"""Get igroups exactly matching a set of initiators."""
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tag = None
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igroup_list = []
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if not initiator_list:
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return igroup_list
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initiator_set = set(initiator_list)
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while True:
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# C-mode getter APIs can't do an 'and' query, so match the first
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# initiator (which will greatly narrow the search results) and
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# filter the rest in this method.
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query = self._get_igroup_by_initiator_query(initiator_list[0], tag)
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result = self.connection.invoke_successfully(query, True)
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tag = result.get_child_content('next-tag')
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num_records = result.get_child_content('num-records')
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if num_records and int(num_records) >= 1:
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for igroup_info in result.get_child_by_name(
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'attributes-list').get_children():
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initiator_set_for_igroup = set()
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for initiator_info in igroup_info.get_child_by_name(
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'initiators').get_children():
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initiator_set_for_igroup.add(
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initiator_info.get_child_content('initiator-name'))
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if initiator_set == initiator_set_for_igroup:
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igroup = {'initiator-group-os-type':
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igroup_info.get_child_content(
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'initiator-group-os-type'),
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'initiator-group-type':
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igroup_info.get_child_content(
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'initiator-group-type'),
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'initiator-group-name':
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igroup_info.get_child_content(
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'initiator-group-name')}
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igroup_list.append(igroup)
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if tag is None:
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break
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return igroup_list
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def clone_lun(self, volume, name, new_name, space_reserved='true',
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qos_policy_group_name=None, src_block=0, dest_block=0,
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block_count=0, source_snapshot=None, is_snapshot=False):
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# zAPI can only handle 2^24 blocks per range
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bc_limit = 2 ** 24 # 8GB
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# zAPI can only handle 32 block ranges per call
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br_limit = 32
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z_limit = br_limit * bc_limit # 256 GB
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z_calls = int(math.ceil(block_count / float(z_limit)))
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zbc = block_count
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if z_calls == 0:
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z_calls = 1
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for _call in range(0, z_calls):
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if zbc > z_limit:
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block_count = z_limit
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zbc -= z_limit
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else:
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block_count = zbc
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zapi_args = {
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'volume': volume,
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'source-path': name,
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'destination-path': new_name,
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'space-reserve': space_reserved,
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}
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if source_snapshot:
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zapi_args['snapshot-name'] = source_snapshot
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if is_snapshot and self.features.BACKUP_CLONE_PARAM:
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zapi_args['is-backup'] = 'true'
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clone_create = netapp_api.NaElement.create_node_with_children(
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'clone-create', **zapi_args)
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if qos_policy_group_name is not None:
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clone_create.add_new_child('qos-policy-group-name',
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qos_policy_group_name)
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if block_count > 0:
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block_ranges = netapp_api.NaElement("block-ranges")
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segments = int(math.ceil(block_count / float(bc_limit)))
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bc = block_count
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for _segment in range(0, segments):
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if bc > bc_limit:
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block_count = bc_limit
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bc -= bc_limit
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else:
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block_count = bc
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block_range =\
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netapp_api.NaElement.create_node_with_children(
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'block-range',
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**{'source-block-number':
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six.text_type(src_block),
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'destination-block-number':
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six.text_type(dest_block),
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'block-count':
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six.text_type(block_count)})
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block_ranges.add_child_elem(block_range)
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src_block += int(block_count)
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dest_block += int(block_count)
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clone_create.add_child_elem(block_ranges)
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self.connection.invoke_successfully(clone_create, True)
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def get_lun_by_args(self, **args):
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"""Retrieves LUN with specified args."""
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lun_iter = netapp_api.NaElement('lun-get-iter')
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lun_iter.add_new_child('max-records', '100')
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query = netapp_api.NaElement('query')
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lun_iter.add_child_elem(query)
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query.add_node_with_children('lun-info', **args)
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luns = self.connection.invoke_successfully(lun_iter, True)
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attr_list = luns.get_child_by_name('attributes-list')
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if not attr_list:
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return []
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return attr_list.get_children()
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|
|
def file_assign_qos(self, flex_vol, qos_policy_group_name, file_path):
|
|
"""Assigns the named QoS policy-group to a file."""
|
|
api_args = {
|
|
'volume': flex_vol,
|
|
'qos-policy-group-name': qos_policy_group_name,
|
|
'file': file_path,
|
|
'vserver': self.vserver,
|
|
}
|
|
return self.send_request('file-assign-qos', api_args, False)
|
|
|
|
def provision_qos_policy_group(self, qos_policy_group_info):
|
|
"""Create QOS policy group on the backend if appropriate."""
|
|
if qos_policy_group_info is None:
|
|
return
|
|
|
|
# Legacy QOS uses externally provisioned QOS policy group,
|
|
# so we don't need to create one on the backend.
|
|
legacy = qos_policy_group_info.get('legacy')
|
|
if legacy is not None:
|
|
return
|
|
|
|
spec = qos_policy_group_info.get('spec')
|
|
if spec is not None:
|
|
if not self.qos_policy_group_exists(spec['policy_name']):
|
|
self.qos_policy_group_create(spec['policy_name'],
|
|
spec['max_throughput'])
|
|
else:
|
|
self.qos_policy_group_modify(spec['policy_name'],
|
|
spec['max_throughput'])
|
|
|
|
def qos_policy_group_exists(self, qos_policy_group_name):
|
|
"""Checks if a QOS policy group exists."""
|
|
api_args = {
|
|
'query': {
|
|
'qos-policy-group-info': {
|
|
'policy-group': qos_policy_group_name,
|
|
},
|
|
},
|
|
'desired-attributes': {
|
|
'qos-policy-group-info': {
|
|
'policy-group': None,
|
|
},
|
|
},
|
|
}
|
|
result = self.send_request('qos-policy-group-get-iter',
|
|
api_args,
|
|
False)
|
|
return self._has_records(result)
|
|
|
|
def qos_policy_group_create(self, qos_policy_group_name, max_throughput):
|
|
"""Creates a QOS policy group."""
|
|
api_args = {
|
|
'policy-group': qos_policy_group_name,
|
|
'max-throughput': max_throughput,
|
|
'vserver': self.vserver,
|
|
}
|
|
return self.send_request('qos-policy-group-create', api_args, False)
|
|
|
|
def qos_policy_group_modify(self, qos_policy_group_name, max_throughput):
|
|
"""Modifies a QOS policy group."""
|
|
api_args = {
|
|
'policy-group': qos_policy_group_name,
|
|
'max-throughput': max_throughput,
|
|
}
|
|
return self.send_request('qos-policy-group-modify', api_args, False)
|
|
|
|
def qos_policy_group_delete(self, qos_policy_group_name):
|
|
"""Attempts to delete a QOS policy group."""
|
|
api_args = {'policy-group': qos_policy_group_name}
|
|
return self.send_request('qos-policy-group-delete', api_args, False)
|
|
|
|
def qos_policy_group_rename(self, qos_policy_group_name, new_name):
|
|
"""Renames a QOS policy group."""
|
|
api_args = {
|
|
'policy-group-name': qos_policy_group_name,
|
|
'new-name': new_name,
|
|
}
|
|
return self.send_request('qos-policy-group-rename', api_args, False)
|
|
|
|
def mark_qos_policy_group_for_deletion(self, qos_policy_group_info):
|
|
"""Do (soft) delete of backing QOS policy group for a cinder volume."""
|
|
if qos_policy_group_info is None:
|
|
return
|
|
|
|
spec = qos_policy_group_info.get('spec')
|
|
|
|
# For cDOT we want to delete the QoS policy group that we created for
|
|
# this cinder volume. Because the QoS policy may still be "in use"
|
|
# after the zapi call to delete the volume itself returns successfully,
|
|
# we instead rename the QoS policy group using a specific pattern and
|
|
# later attempt on a best effort basis to delete any QoS policy groups
|
|
# matching that pattern.
|
|
if spec is not None:
|
|
current_name = spec['policy_name']
|
|
new_name = DELETED_PREFIX + current_name
|
|
try:
|
|
self.qos_policy_group_rename(current_name, new_name)
|
|
except netapp_api.NaApiError as ex:
|
|
msg = _LW('Rename failure in cleanup of cDOT QOS policy group '
|
|
'%(name)s: %(ex)s')
|
|
LOG.warning(msg, {'name': current_name, 'ex': ex})
|
|
|
|
# Attempt to delete any QoS policies named "delete-openstack-*".
|
|
self.remove_unused_qos_policy_groups()
|
|
|
|
def remove_unused_qos_policy_groups(self):
|
|
"""Deletes all QOS policy groups that are marked for deletion."""
|
|
api_args = {
|
|
'query': {
|
|
'qos-policy-group-info': {
|
|
'policy-group': '%s*' % DELETED_PREFIX,
|
|
'vserver': self.vserver,
|
|
}
|
|
},
|
|
'max-records': 3500,
|
|
'continue-on-failure': 'true',
|
|
'return-success-list': 'false',
|
|
'return-failure-list': 'false',
|
|
}
|
|
|
|
try:
|
|
self.send_request('qos-policy-group-delete-iter', api_args, False)
|
|
except netapp_api.NaApiError as ex:
|
|
msg = 'Could not delete QOS policy groups. Details: %(ex)s'
|
|
msg_args = {'ex': ex}
|
|
LOG.debug(msg % msg_args)
|
|
|
|
def set_lun_qos_policy_group(self, path, qos_policy_group):
|
|
"""Sets qos_policy_group on a LUN."""
|
|
api_args = {
|
|
'path': path,
|
|
'qos-policy-group': qos_policy_group,
|
|
}
|
|
return self.send_request('lun-set-qos-policy-group', api_args)
|
|
|
|
def get_if_info_by_ip(self, ip):
|
|
"""Gets the network interface info by ip."""
|
|
net_if_iter = netapp_api.NaElement('net-interface-get-iter')
|
|
net_if_iter.add_new_child('max-records', '10')
|
|
query = netapp_api.NaElement('query')
|
|
net_if_iter.add_child_elem(query)
|
|
query.add_node_with_children(
|
|
'net-interface-info',
|
|
**{'address': na_utils.resolve_hostname(ip)})
|
|
result = self.connection.invoke_successfully(net_if_iter, True)
|
|
num_records = result.get_child_content('num-records')
|
|
if num_records and int(num_records) >= 1:
|
|
attr_list = result.get_child_by_name('attributes-list')
|
|
return attr_list.get_children()
|
|
raise exception.NotFound(
|
|
_('No interface found on cluster for ip %s') % ip)
|
|
|
|
def get_vol_by_junc_vserver(self, vserver, junction):
|
|
"""Gets the volume by junction path and vserver."""
|
|
vol_iter = netapp_api.NaElement('volume-get-iter')
|
|
vol_iter.add_new_child('max-records', '10')
|
|
query = netapp_api.NaElement('query')
|
|
vol_iter.add_child_elem(query)
|
|
vol_attrs = netapp_api.NaElement('volume-attributes')
|
|
query.add_child_elem(vol_attrs)
|
|
vol_attrs.add_node_with_children(
|
|
'volume-id-attributes',
|
|
**{'junction-path': junction,
|
|
'owning-vserver-name': vserver})
|
|
des_attrs = netapp_api.NaElement('desired-attributes')
|
|
des_attrs.add_node_with_children('volume-attributes',
|
|
**{'volume-id-attributes': None})
|
|
vol_iter.add_child_elem(des_attrs)
|
|
result = self._invoke_vserver_api(vol_iter, vserver)
|
|
num_records = result.get_child_content('num-records')
|
|
if num_records and int(num_records) >= 1:
|
|
attr_list = result.get_child_by_name('attributes-list')
|
|
vols = attr_list.get_children()
|
|
vol_id = vols[0].get_child_by_name('volume-id-attributes')
|
|
return vol_id.get_child_content('name')
|
|
msg_fmt = {'vserver': vserver, 'junction': junction}
|
|
raise exception.NotFound(_("No volume on cluster with vserver "
|
|
"%(vserver)s and junction path "
|
|
"%(junction)s ") % msg_fmt)
|
|
|
|
def clone_file(self, flex_vol, src_path, dest_path, vserver,
|
|
dest_exists=False, is_snapshot=False):
|
|
"""Clones file on vserver."""
|
|
LOG.debug("Cloning with params volume %(volume)s, src %(src_path)s, "
|
|
"dest %(dest_path)s, vserver %(vserver)s",
|
|
{'volume': flex_vol, 'src_path': src_path,
|
|
'dest_path': dest_path, 'vserver': vserver})
|
|
|
|
zapi_args = {
|
|
'volume': flex_vol,
|
|
'source-path': src_path,
|
|
'destination-path': dest_path,
|
|
}
|
|
if is_snapshot and self.features.BACKUP_CLONE_PARAM:
|
|
zapi_args['is-backup'] = 'true'
|
|
clone_create = netapp_api.NaElement.create_node_with_children(
|
|
'clone-create', **zapi_args)
|
|
|
|
major, minor = self.connection.get_api_version()
|
|
if major == 1 and minor >= 20 and dest_exists:
|
|
clone_create.add_new_child('destination-exists', 'true')
|
|
self._invoke_vserver_api(clone_create, vserver)
|
|
|
|
def get_file_usage(self, path, vserver):
|
|
"""Gets the file unique bytes."""
|
|
LOG.debug('Getting file usage for %s', path)
|
|
file_use = netapp_api.NaElement.create_node_with_children(
|
|
'file-usage-get', **{'path': path})
|
|
res = self._invoke_vserver_api(file_use, vserver)
|
|
unique_bytes = res.get_child_content('unique-bytes')
|
|
LOG.debug('file-usage for path %(path)s is %(bytes)s',
|
|
{'path': path, 'bytes': unique_bytes})
|
|
return unique_bytes
|
|
|
|
def check_cluster_api(self, object_name, operation_name, api):
|
|
"""Checks the availability of a cluster API.
|
|
|
|
Returns True if the specified cluster API exists and may be called by
|
|
the current user. The API is *called* on Data ONTAP versions prior to
|
|
8.2, while versions starting with 8.2 utilize an API designed for
|
|
this purpose.
|
|
"""
|
|
|
|
if not self.features.USER_CAPABILITY_LIST:
|
|
return self._check_cluster_api_legacy(api)
|
|
else:
|
|
return self._check_cluster_api(object_name, operation_name, api)
|
|
|
|
def _check_cluster_api(self, object_name, operation_name, api):
|
|
"""Checks the availability of a cluster API.
|
|
|
|
Returns True if the specified cluster API exists and may be called by
|
|
the current user. This method assumes Data ONTAP 8.2 or higher.
|
|
"""
|
|
|
|
api_args = {
|
|
'query': {
|
|
'capability-info': {
|
|
'object-name': object_name,
|
|
'operation-list': {
|
|
'operation-info': {
|
|
'name': operation_name,
|
|
},
|
|
},
|
|
},
|
|
},
|
|
'desired-attributes': {
|
|
'capability-info': {
|
|
'operation-list': {
|
|
'operation-info': {
|
|
'api-name': None,
|
|
},
|
|
},
|
|
},
|
|
},
|
|
}
|
|
result = self.send_request(
|
|
'system-user-capability-get-iter', api_args, False)
|
|
|
|
if not self._has_records(result):
|
|
return False
|
|
|
|
capability_info_list = result.get_child_by_name(
|
|
'attributes-list') or netapp_api.NaElement('none')
|
|
|
|
for capability_info in capability_info_list.get_children():
|
|
|
|
operation_list = capability_info.get_child_by_name(
|
|
'operation-list') or netapp_api.NaElement('none')
|
|
|
|
for operation_info in operation_list.get_children():
|
|
api_name = operation_info.get_child_content('api-name') or ''
|
|
api_names = api_name.split(',')
|
|
if api in api_names:
|
|
return True
|
|
|
|
return False
|
|
|
|
def _check_cluster_api_legacy(self, api):
|
|
"""Checks the availability of a cluster API.
|
|
|
|
Returns True if the specified cluster API exists and may be called by
|
|
the current user. This method should only be used for Data ONTAP 8.1,
|
|
and only getter APIs may be tested because the API is actually called
|
|
to perform the check.
|
|
"""
|
|
|
|
if not re.match(".*-get$|.*-get-iter$|.*-list-info$", api):
|
|
raise ValueError(_('Non-getter API passed to API test method.'))
|
|
|
|
try:
|
|
self.send_request(api, enable_tunneling=False)
|
|
except netapp_api.NaApiError as ex:
|
|
if ex.code in (netapp_api.EAPIPRIVILEGE, netapp_api.EAPINOTFOUND):
|
|
return False
|
|
|
|
return True
|
|
|
|
def get_operational_lif_addresses(self):
|
|
"""Gets the IP addresses of operational LIFs on the vserver."""
|
|
|
|
net_interface_get_iter_args = {
|
|
'query': {
|
|
'net-interface-info': {
|
|
'operational-status': 'up'
|
|
}
|
|
},
|
|
'desired-attributes': {
|
|
'net-interface-info': {
|
|
'address': None,
|
|
}
|
|
}
|
|
}
|
|
result = self.send_iter_request('net-interface-get-iter',
|
|
net_interface_get_iter_args)
|
|
|
|
lif_info_list = result.get_child_by_name(
|
|
'attributes-list') or netapp_api.NaElement('none')
|
|
|
|
return [lif_info.get_child_content('address') for lif_info in
|
|
lif_info_list.get_children()]
|
|
|
|
def get_flexvol_capacity(self, flexvol_path=None, flexvol_name=None):
|
|
"""Gets total capacity and free capacity, in bytes, of the flexvol."""
|
|
|
|
volume_id_attributes = {}
|
|
if flexvol_path:
|
|
volume_id_attributes['junction-path'] = flexvol_path
|
|
if flexvol_name:
|
|
volume_id_attributes['name'] = flexvol_name
|
|
|
|
api_args = {
|
|
'query': {
|
|
'volume-attributes': {
|
|
'volume-id-attributes': volume_id_attributes,
|
|
}
|
|
},
|
|
'desired-attributes': {
|
|
'volume-attributes': {
|
|
'volume-space-attributes': {
|
|
'size-available': None,
|
|
'size-total': None,
|
|
}
|
|
}
|
|
},
|
|
}
|
|
|
|
result = self.send_iter_request('volume-get-iter', api_args)
|
|
if self._get_record_count(result) != 1:
|
|
msg = _('Volume %s not found.')
|
|
msg_args = flexvol_path or flexvol_name
|
|
raise exception.NetAppDriverException(msg % msg_args)
|
|
|
|
attributes_list = result.get_child_by_name('attributes-list')
|
|
volume_attributes = attributes_list.get_child_by_name(
|
|
'volume-attributes')
|
|
volume_space_attributes = volume_attributes.get_child_by_name(
|
|
'volume-space-attributes')
|
|
|
|
size_available = float(
|
|
volume_space_attributes.get_child_content('size-available'))
|
|
size_total = float(
|
|
volume_space_attributes.get_child_content('size-total'))
|
|
|
|
return {
|
|
'size-total': size_total,
|
|
'size-available': size_available,
|
|
}
|
|
|
|
def list_flexvols(self):
|
|
"""Returns the names of the flexvols on the controller."""
|
|
|
|
api_args = {
|
|
'query': {
|
|
'volume-attributes': {
|
|
'volume-id-attributes': {
|
|
'type': 'rw',
|
|
'style': 'flex',
|
|
},
|
|
'volume-state-attributes': {
|
|
'is-vserver-root': 'false',
|
|
'is-inconsistent': 'false',
|
|
'is-invalid': 'false',
|
|
'state': 'online',
|
|
},
|
|
},
|
|
},
|
|
'desired-attributes': {
|
|
'volume-attributes': {
|
|
'volume-id-attributes': {
|
|
'name': None,
|
|
},
|
|
},
|
|
},
|
|
}
|
|
result = self.send_iter_request('volume-get-iter', api_args)
|
|
if not self._has_records(result):
|
|
return []
|
|
|
|
volumes = []
|
|
|
|
attributes_list = result.get_child_by_name(
|
|
'attributes-list') or netapp_api.NaElement('none')
|
|
|
|
for volume_attributes in attributes_list.get_children():
|
|
|
|
volume_id_attributes = volume_attributes.get_child_by_name(
|
|
'volume-id-attributes') or netapp_api.NaElement('none')
|
|
|
|
volumes.append(volume_id_attributes.get_child_content('name'))
|
|
|
|
return volumes
|
|
|
|
def get_flexvol(self, flexvol_path=None, flexvol_name=None):
|
|
"""Get flexvol attributes needed for the storage service catalog."""
|
|
|
|
volume_id_attributes = {'type': 'rw', 'style': 'flex'}
|
|
if flexvol_path:
|
|
volume_id_attributes['junction-path'] = flexvol_path
|
|
if flexvol_name:
|
|
volume_id_attributes['name'] = flexvol_name
|
|
|
|
api_args = {
|
|
'query': {
|
|
'volume-attributes': {
|
|
'volume-id-attributes': volume_id_attributes,
|
|
'volume-state-attributes': {
|
|
'is-vserver-root': 'false',
|
|
'is-inconsistent': 'false',
|
|
'is-invalid': 'false',
|
|
'state': 'online',
|
|
},
|
|
},
|
|
},
|
|
'desired-attributes': {
|
|
'volume-attributes': {
|
|
'volume-id-attributes': {
|
|
'name': None,
|
|
'owning-vserver-name': None,
|
|
'junction-path': None,
|
|
'containing-aggregate-name': None,
|
|
},
|
|
'volume-mirror-attributes': {
|
|
'is-data-protection-mirror': None,
|
|
'is-replica-volume': None,
|
|
},
|
|
'volume-space-attributes': {
|
|
'is-space-guarantee-enabled': None,
|
|
'space-guarantee': None,
|
|
},
|
|
'volume-qos-attributes': {
|
|
'policy-group-name': None,
|
|
}
|
|
},
|
|
},
|
|
}
|
|
result = self.send_iter_request('volume-get-iter', api_args)
|
|
|
|
if self._get_record_count(result) != 1:
|
|
msg = _('Could not find unique volume %(vol)s.')
|
|
msg_args = {'vol': flexvol_name}
|
|
raise exception.VolumeBackendAPIException(data=msg % msg_args)
|
|
|
|
attributes_list = result.get_child_by_name(
|
|
'attributes-list') or netapp_api.NaElement('none')
|
|
|
|
volume_attributes = attributes_list.get_child_by_name(
|
|
'volume-attributes') or netapp_api.NaElement('none')
|
|
|
|
volume_id_attributes = volume_attributes.get_child_by_name(
|
|
'volume-id-attributes') or netapp_api.NaElement('none')
|
|
volume_space_attributes = volume_attributes.get_child_by_name(
|
|
'volume-space-attributes') or netapp_api.NaElement('none')
|
|
volume_qos_attributes = volume_attributes.get_child_by_name(
|
|
'volume-qos-attributes') or netapp_api.NaElement('none')
|
|
|
|
volume = {
|
|
'name': volume_id_attributes.get_child_content('name'),
|
|
'vserver': volume_id_attributes.get_child_content(
|
|
'owning-vserver-name'),
|
|
'junction-path': volume_id_attributes.get_child_content(
|
|
'junction-path'),
|
|
'aggregate': volume_id_attributes.get_child_content(
|
|
'containing-aggregate-name'),
|
|
'space-guarantee-enabled': strutils.bool_from_string(
|
|
volume_space_attributes.get_child_content(
|
|
'is-space-guarantee-enabled')),
|
|
'space-guarantee': volume_space_attributes.get_child_content(
|
|
'space-guarantee'),
|
|
'qos-policy-group': volume_qos_attributes.get_child_content(
|
|
'policy-group-name')
|
|
}
|
|
|
|
return volume
|
|
|
|
def get_flexvol_dedupe_info(self, flexvol_name):
|
|
"""Get dedupe attributes needed for the storage service catalog."""
|
|
|
|
api_args = {
|
|
'query': {
|
|
'sis-status-info': {
|
|
'path': '/vol/%s' % flexvol_name,
|
|
},
|
|
},
|
|
'desired-attributes': {
|
|
'sis-status-info': {
|
|
'state': None,
|
|
'is-compression-enabled': None,
|
|
},
|
|
},
|
|
}
|
|
|
|
try:
|
|
result = self.send_iter_request('sis-get-iter', api_args)
|
|
except netapp_api.NaApiError:
|
|
msg = _LE('Failed to get dedupe info for volume %s.')
|
|
LOG.exception(msg, flexvol_name)
|
|
return {'compression': False, 'dedupe': False}
|
|
|
|
if self._get_record_count(result) != 1:
|
|
return {'compression': False, 'dedupe': False}
|
|
|
|
attributes_list = result.get_child_by_name(
|
|
'attributes-list') or netapp_api.NaElement('none')
|
|
|
|
sis_status_info = attributes_list.get_child_by_name(
|
|
'sis-status-info') or netapp_api.NaElement('none')
|
|
|
|
sis = {
|
|
'compression': strutils.bool_from_string(
|
|
sis_status_info.get_child_content('is-compression-enabled')),
|
|
'dedupe': na_utils.to_bool(
|
|
sis_status_info.get_child_content('state')),
|
|
}
|
|
|
|
return sis
|
|
|
|
def is_flexvol_mirrored(self, flexvol_name, vserver_name):
|
|
"""Check if flexvol is a SnapMirror source."""
|
|
|
|
api_args = {
|
|
'query': {
|
|
'snapmirror-info': {
|
|
'source-vserver': vserver_name,
|
|
'source-volume': flexvol_name,
|
|
'mirror-state': 'snapmirrored',
|
|
'relationship-type': 'data_protection',
|
|
},
|
|
},
|
|
'desired-attributes': {
|
|
'snapmirror-info': None,
|
|
},
|
|
}
|
|
|
|
try:
|
|
result = self.send_iter_request('snapmirror-get-iter', api_args)
|
|
except netapp_api.NaApiError:
|
|
msg = _LE('Failed to get SnapMirror info for volume %s.')
|
|
LOG.exception(msg, flexvol_name)
|
|
return False
|
|
|
|
if not self._has_records(result):
|
|
return False
|
|
|
|
return True
|
|
|
|
@utils.trace_method
|
|
def delete_file(self, path_to_file):
|
|
"""Delete file at path."""
|
|
|
|
api_args = {
|
|
'path': path_to_file,
|
|
}
|
|
# Use fast clone deletion engine if it is supported.
|
|
if self.features.FAST_CLONE_DELETE:
|
|
api_args['is-clone-file'] = 'true'
|
|
self.send_request('file-delete-file', api_args, True)
|
|
|
|
def _get_aggregates(self, aggregate_names=None, desired_attributes=None):
|
|
|
|
query = {
|
|
'aggr-attributes': {
|
|
'aggregate-name': '|'.join(aggregate_names),
|
|
}
|
|
} if aggregate_names else None
|
|
|
|
api_args = {}
|
|
if query:
|
|
api_args['query'] = query
|
|
if desired_attributes:
|
|
api_args['desired-attributes'] = desired_attributes
|
|
|
|
result = self.send_request('aggr-get-iter',
|
|
api_args,
|
|
enable_tunneling=False)
|
|
if not self._has_records(result):
|
|
return []
|
|
else:
|
|
return result.get_child_by_name('attributes-list').get_children()
|
|
|
|
def get_node_for_aggregate(self, aggregate_name):
|
|
"""Get home node for the specified aggregate.
|
|
|
|
This API could return None, most notably if it was sent
|
|
to a Vserver LIF, so the caller must be able to handle that case.
|
|
"""
|
|
|
|
if not aggregate_name:
|
|
return None
|
|
|
|
desired_attributes = {
|
|
'aggr-attributes': {
|
|
'aggregate-name': None,
|
|
'aggr-ownership-attributes': {
|
|
'home-name': None,
|
|
},
|
|
},
|
|
}
|
|
|
|
try:
|
|
aggrs = self._get_aggregates(aggregate_names=[aggregate_name],
|
|
desired_attributes=desired_attributes)
|
|
except netapp_api.NaApiError as e:
|
|
if e.code == netapp_api.EAPINOTFOUND:
|
|
return None
|
|
else:
|
|
raise
|
|
|
|
if len(aggrs) < 1:
|
|
return None
|
|
|
|
aggr_ownership_attrs = aggrs[0].get_child_by_name(
|
|
'aggr-ownership-attributes') or netapp_api.NaElement('none')
|
|
return aggr_ownership_attrs.get_child_content('home-name')
|
|
|
|
def get_aggregate(self, aggregate_name):
|
|
"""Get aggregate attributes needed for the storage service catalog."""
|
|
|
|
if not aggregate_name:
|
|
return {}
|
|
|
|
desired_attributes = {
|
|
'aggr-attributes': {
|
|
'aggregate-name': None,
|
|
'aggr-raid-attributes': {
|
|
'raid-type': None,
|
|
'is-hybrid': None,
|
|
},
|
|
},
|
|
}
|
|
|
|
try:
|
|
aggrs = self._get_aggregates(aggregate_names=[aggregate_name],
|
|
desired_attributes=desired_attributes)
|
|
except netapp_api.NaApiError:
|
|
msg = _LE('Failed to get info for aggregate %s.')
|
|
LOG.exception(msg, aggregate_name)
|
|
return {}
|
|
|
|
if len(aggrs) < 1:
|
|
return {}
|
|
|
|
aggr_attributes = aggrs[0]
|
|
aggr_raid_attrs = aggr_attributes.get_child_by_name(
|
|
'aggr-raid-attributes') or netapp_api.NaElement('none')
|
|
|
|
aggregate = {
|
|
'name': aggr_attributes.get_child_content('aggregate-name'),
|
|
'raid-type': aggr_raid_attrs.get_child_content('raid-type'),
|
|
'is-hybrid': strutils.bool_from_string(
|
|
aggr_raid_attrs.get_child_content('is-hybrid')),
|
|
}
|
|
|
|
return aggregate
|
|
|
|
def get_aggregate_disk_types(self, aggregate_name):
|
|
"""Get the disk type(s) of an aggregate."""
|
|
|
|
disk_types = set()
|
|
disk_types.update(self._get_aggregate_disk_types(aggregate_name))
|
|
if self.features.ADVANCED_DISK_PARTITIONING:
|
|
disk_types.update(self._get_aggregate_disk_types(aggregate_name,
|
|
shared=True))
|
|
|
|
return list(disk_types) if disk_types else None
|
|
|
|
def _get_aggregate_disk_types(self, aggregate_name, shared=False):
|
|
"""Get the disk type(s) of an aggregate (may be a list)."""
|
|
|
|
disk_types = set()
|
|
|
|
if shared:
|
|
disk_raid_info = {
|
|
'disk-shared-info': {
|
|
'aggregate-list': {
|
|
'shared-aggregate-info': {
|
|
'aggregate-name': aggregate_name,
|
|
},
|
|
},
|
|
},
|
|
}
|
|
else:
|
|
disk_raid_info = {
|
|
'disk-aggregate-info': {
|
|
'aggregate-name': aggregate_name,
|
|
},
|
|
}
|
|
|
|
api_args = {
|
|
'query': {
|
|
'storage-disk-info': {
|
|
'disk-raid-info': disk_raid_info,
|
|
},
|
|
},
|
|
'desired-attributes': {
|
|
'storage-disk-info': {
|
|
'disk-raid-info': {
|
|
'effective-disk-type': None,
|
|
},
|
|
},
|
|
},
|
|
}
|
|
|
|
try:
|
|
result = self.send_iter_request(
|
|
'storage-disk-get-iter', api_args, enable_tunneling=False)
|
|
except netapp_api.NaApiError:
|
|
msg = _LE('Failed to get disk info for aggregate %s.')
|
|
LOG.exception(msg, aggregate_name)
|
|
return disk_types
|
|
|
|
attributes_list = result.get_child_by_name(
|
|
'attributes-list') or netapp_api.NaElement('none')
|
|
|
|
for storage_disk_info in attributes_list.get_children():
|
|
|
|
disk_raid_info = storage_disk_info.get_child_by_name(
|
|
'disk-raid-info') or netapp_api.NaElement('none')
|
|
disk_type = disk_raid_info.get_child_content(
|
|
'effective-disk-type')
|
|
if disk_type:
|
|
disk_types.add(disk_type)
|
|
|
|
return disk_types
|
|
|
|
def get_aggregate_capacities(self, aggregate_names):
|
|
"""Gets capacity info for multiple aggregates."""
|
|
|
|
if not isinstance(aggregate_names, list):
|
|
return {}
|
|
|
|
aggregates = {}
|
|
for aggregate_name in aggregate_names:
|
|
aggregates[aggregate_name] = self.get_aggregate_capacity(
|
|
aggregate_name)
|
|
|
|
return aggregates
|
|
|
|
def get_aggregate_capacity(self, aggregate_name):
|
|
"""Gets capacity info for an aggregate."""
|
|
|
|
desired_attributes = {
|
|
'aggr-attributes': {
|
|
'aggr-space-attributes': {
|
|
'percent-used-capacity': None,
|
|
'size-available': None,
|
|
'size-total': None,
|
|
},
|
|
},
|
|
}
|
|
|
|
try:
|
|
aggrs = self._get_aggregates(aggregate_names=[aggregate_name],
|
|
desired_attributes=desired_attributes)
|
|
except netapp_api.NaApiError:
|
|
msg = _LE('Failed to get info for aggregate %s.')
|
|
LOG.exception(msg, aggregate_name)
|
|
return {}
|
|
|
|
if len(aggrs) < 1:
|
|
return {}
|
|
|
|
aggr_attributes = aggrs[0]
|
|
aggr_space_attributes = aggr_attributes.get_child_by_name(
|
|
'aggr-space-attributes') or netapp_api.NaElement('none')
|
|
|
|
percent_used = int(aggr_space_attributes.get_child_content(
|
|
'percent-used-capacity'))
|
|
size_available = float(aggr_space_attributes.get_child_content(
|
|
'size-available'))
|
|
size_total = float(
|
|
aggr_space_attributes.get_child_content('size-total'))
|
|
|
|
return {
|
|
'percent-used': percent_used,
|
|
'size-available': size_available,
|
|
'size-total': size_total,
|
|
}
|
|
|
|
def get_performance_instance_uuids(self, object_name, node_name):
|
|
"""Get UUIDs of performance instances for a cluster node."""
|
|
|
|
api_args = {
|
|
'objectname': object_name,
|
|
'query': {
|
|
'instance-info': {
|
|
'uuid': node_name + ':*',
|
|
}
|
|
}
|
|
}
|
|
|
|
result = self.send_request('perf-object-instance-list-info-iter',
|
|
api_args,
|
|
enable_tunneling=False)
|
|
|
|
uuids = []
|
|
|
|
instances = result.get_child_by_name(
|
|
'attributes-list') or netapp_api.NaElement('None')
|
|
|
|
for instance_info in instances.get_children():
|
|
uuids.append(instance_info.get_child_content('uuid'))
|
|
|
|
return uuids
|
|
|
|
def get_performance_counters(self, object_name, instance_uuids,
|
|
counter_names):
|
|
"""Gets or or more cDOT performance counters."""
|
|
|
|
api_args = {
|
|
'objectname': object_name,
|
|
'instance-uuids': [
|
|
{'instance-uuid': instance_uuid}
|
|
for instance_uuid in instance_uuids
|
|
],
|
|
'counters': [
|
|
{'counter': counter} for counter in counter_names
|
|
],
|
|
}
|
|
|
|
result = self.send_request('perf-object-get-instances',
|
|
api_args,
|
|
enable_tunneling=False)
|
|
|
|
counter_data = []
|
|
|
|
timestamp = result.get_child_content('timestamp')
|
|
|
|
instances = result.get_child_by_name(
|
|
'instances') or netapp_api.NaElement('None')
|
|
for instance in instances.get_children():
|
|
|
|
instance_name = instance.get_child_content('name')
|
|
instance_uuid = instance.get_child_content('uuid')
|
|
node_name = instance_uuid.split(':')[0]
|
|
|
|
counters = instance.get_child_by_name(
|
|
'counters') or netapp_api.NaElement('None')
|
|
for counter in counters.get_children():
|
|
|
|
counter_name = counter.get_child_content('name')
|
|
counter_value = counter.get_child_content('value')
|
|
|
|
counter_data.append({
|
|
'instance-name': instance_name,
|
|
'instance-uuid': instance_uuid,
|
|
'node-name': node_name,
|
|
'timestamp': timestamp,
|
|
counter_name: counter_value,
|
|
})
|
|
|
|
return counter_data
|
|
|
|
def get_snapshot(self, volume_name, snapshot_name):
|
|
"""Gets a single snapshot."""
|
|
api_args = {
|
|
'query': {
|
|
'snapshot-info': {
|
|
'name': snapshot_name,
|
|
'volume': volume_name,
|
|
},
|
|
},
|
|
'desired-attributes': {
|
|
'snapshot-info': {
|
|
'name': None,
|
|
'volume': None,
|
|
'busy': None,
|
|
'snapshot-owners-list': {
|
|
'snapshot-owner': None,
|
|
}
|
|
},
|
|
},
|
|
}
|
|
result = self.send_request('snapshot-get-iter', api_args)
|
|
|
|
self._handle_get_snapshot_return_failure(result, snapshot_name)
|
|
|
|
attributes_list = result.get_child_by_name(
|
|
'attributes-list') or netapp_api.NaElement('none')
|
|
snapshot_info_list = attributes_list.get_children()
|
|
|
|
self._handle_snapshot_not_found(result, snapshot_info_list,
|
|
snapshot_name, volume_name)
|
|
|
|
snapshot_info = snapshot_info_list[0]
|
|
snapshot = {
|
|
'name': snapshot_info.get_child_content('name'),
|
|
'volume': snapshot_info.get_child_content('volume'),
|
|
'busy': strutils.bool_from_string(
|
|
snapshot_info.get_child_content('busy')),
|
|
}
|
|
|
|
snapshot_owners_list = snapshot_info.get_child_by_name(
|
|
'snapshot-owners-list') or netapp_api.NaElement('none')
|
|
snapshot_owners = set([
|
|
snapshot_owner.get_child_content('owner')
|
|
for snapshot_owner in snapshot_owners_list.get_children()])
|
|
snapshot['owners'] = snapshot_owners
|
|
|
|
return snapshot
|
|
|
|
def _handle_get_snapshot_return_failure(self, result, snapshot_name):
|
|
error_record_list = result.get_child_by_name(
|
|
'volume-errors') or netapp_api.NaElement('none')
|
|
errors = error_record_list.get_children()
|
|
|
|
if errors:
|
|
error = errors[0]
|
|
error_code = error.get_child_content('errno')
|
|
error_reason = error.get_child_content('reason')
|
|
msg = _('Could not read information for snapshot %(name)s. '
|
|
'Code: %(code)s. Reason: %(reason)s')
|
|
msg_args = {
|
|
'name': snapshot_name,
|
|
'code': error_code,
|
|
'reason': error_reason,
|
|
}
|
|
if error_code == netapp_api.ESNAPSHOTNOTALLOWED:
|
|
raise exception.SnapshotUnavailable(data=msg % msg_args)
|
|
else:
|
|
raise exception.VolumeBackendAPIException(data=msg % msg_args)
|
|
|
|
def _handle_snapshot_not_found(self, result, snapshot_info_list,
|
|
snapshot_name, volume_name):
|
|
if not self._has_records(result):
|
|
raise exception.SnapshotNotFound(snapshot_id=snapshot_name)
|
|
elif len(snapshot_info_list) > 1:
|
|
msg = _('Could not find unique snapshot %(snap)s on '
|
|
'volume %(vol)s.')
|
|
msg_args = {'snap': snapshot_name, 'vol': volume_name}
|
|
raise exception.VolumeBackendAPIException(data=msg % msg_args)
|