def terminate_connection(self, volume, connector, **kwargs):
LOG.info(
'Terminate FC connection for volume %(id)s, '
'connector info %(conn)s.', {
'id': volume.id,
'conn': connector
})
if self._is_volume_multi_attach_to_same_host(volume, connector):
return
metadata = huawei_utils.get_volume_private_data(volume)
if metadata.get('hypermetro'):
hypermetro = huawei_utils.get_hypermetro(self.local_cli, volume)
if hypermetro:
rmt_ini_tgt_map = huawei_flow.terminate_remote_fc_connection(
hypermetro['ID'], connector, self.fc_san,
self.hypermetro_rmt_cli)
loc_ini_tgt_map = huawei_flow.terminate_fc_connection(
volume, constants.LUN_TYPE, connector, self.fc_san, self.local_cli)
if metadata.get('hypermetro'):
self._merge_ini_tgt_map(loc_ini_tgt_map, rmt_ini_tgt_map)
conn = {
'driver_volume_type': 'fibre_channel',
'data': {
'initiator_target_map': loc_ini_tgt_map
},
}
LOG.info('Terminate FC connection successfully: %s.', conn)
zm_utils.remove_fc_zone(conn)
return conn
def initialize_connection(self, volume, connector):
LOG.info(
'Initialize FC connection for volume %(id)s, '
'connector info %(conn)s.', {
'id': volume.id,
'conn': connector
})
metadata = huawei_utils.get_volume_private_data(volume)
if metadata.get('hypermetro'):
if (not connector.get('multipath')
and self.configuration.enforce_multipath_for_hypermetro):
msg = _("Mapping hypermetro volume must use multipath.")
LOG.error(msg)
raise exception.VolumeBackendAPIException(data=msg)
elif (not connector.get('multipath')
and not self.configuration.enforce_multipath_for_hypermetro):
LOG.warning("Mapping hypermetro volume not use multipath,"
" so just mapping the local lun.")
if not self.hypermetro_rmt_cli:
msg = _("Mapping hypermetro volume requires remote.")
LOG.error(msg)
raise exception.VolumeBackendAPIException(data=msg)
local_mapping = huawei_flow.initialize_fc_connection(
volume, constants.LUN_TYPE, connector, self.fc_san, self.local_cli,
self.configuration)
if metadata.get('hypermetro') and connector.get('multipath'):
hypermetro = huawei_utils.get_hypermetro(self.local_cli, volume)
if not hypermetro:
msg = _("Mapping hypermetro remote volume error.")
LOG.error(msg)
raise exception.VolumeBackendAPIException(data=msg)
remote_mapping = huawei_flow.initialize_remote_fc_connection(
hypermetro['ID'], connector, self.fc_san,
self.hypermetro_rmt_cli, self.configuration)
same_host_lun_id = self._change_same_host_lun_id(
local_mapping, remote_mapping)
mapping_info = self._merge_fc_mapping(local_mapping,
remote_mapping,
same_host_lun_id)
else:
mapping_info = local_mapping
mapping_info.pop('aval_host_lun_ids', None)
conn = {'driver_volume_type': 'fibre_channel', 'data': mapping_info}
LOG.info('Initialize FC connection successfully: %s.', conn)
zm_utils.add_fc_zone(conn)
return conn
def terminate_connection(self, volume, connector, **kwargs):
LOG.info(
'Terminate iscsi connection for volume %(id)s, '
'connector info %(conn)s.', {
'id': volume.id,
'conn': connector
})
metadata = huawei_utils.get_volume_private_data(volume)
if metadata.get('hypermetro'):
hypermetro = huawei_utils.get_hypermetro(self.local_cli, volume)
if hypermetro:
huawei_flow.terminate_remote_iscsi_connection(
hypermetro['ID'], connector, self.hypermetro_rmt_cli)
huawei_flow.terminate_iscsi_connection(volume, constants.LUN_TYPE,
connector, self.local_cli)
LOG.info('Terminate iscsi connection successfully.')
def _terminate_connection_locked(self, host, volume, connector):
LOG.info('Terminate iscsi connection for volume %(id)s, '
'connector info %(conn)s.',
{'id': volume.id, 'conn': connector})
if self._is_volume_multi_attach_to_same_host(volume, connector):
return
metadata = huawei_utils.get_volume_private_data(volume)
if metadata.get('hypermetro'):
hypermetro = huawei_utils.get_hypermetro(self.local_cli, volume)
if hypermetro:
huawei_flow.terminate_remote_iscsi_connection(
hypermetro['ID'], connector, self.hypermetro_rmt_cli,
self.configuration)
huawei_flow.terminate_iscsi_connection(
volume, constants.LUN_TYPE, connector, self.local_cli,
self.configuration)
LOG.info('Terminate iscsi connection successfully.')
def _remove_volume_from_metrogroup(self, volumes, metrogroup_id):
metro_ids = []
for volume in volumes:
metadata = huawei_utils.get_volume_private_data(volume)
if not metadata.get('hypermetro'):
LOG.warning("Volume %s doesn't have hypermetro.", volume.id)
continue
hypermetro = huawei_utils.get_hypermetro(self.local_cli, volume)
if not hypermetro:
LOG.warning("Volume %s doesn't have hypermetro on the array.",
volume.id)
continue
metro_id = hypermetro['ID']
self.local_cli.remove_metro_from_metrogroup(
metrogroup_id, metro_id)
metro_ids.append(metro_id)
self._ensure_hypermetro_not_in_group(metrogroup_id, metro_ids)
