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 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}
def determine_changes_when_retype(self, volume, new_type, host):
migration = False
change_opts = {
'policy': None,
'partitionid': None,
'cacheid': None,
'qos': None,
'host': None,
'LUNType': None,
}
lun_id = volume.get('provider_location')
old_opts = self.get_lun_specs(lun_id)
new_specs = new_type['extra_specs']
new_opts = huawei_utils._get_extra_spec_value(new_specs)
new_opts = smartx.SmartX().get_smartx_specs_opts(new_opts)
if 'LUNType' not in new_opts:
new_opts['LUNType'] = huawei_utils.find_luntype_in_xml(
self.xml_file_path)
if volume['host'] != host['host']:
migration = True
change_opts['host'] = (volume['host'], host['host'])
if old_opts['LUNType'] != new_opts['LUNType']:
migration = True
change_opts['LUNType'] = (old_opts['LUNType'], new_opts['LUNType'])
new_cache_id = None
new_cache_name = new_opts['cachename']
if new_cache_name:
new_cache_id = self.restclient.get_cache_id_by_name(new_cache_name)
if new_cache_id is None:
msg = (_("Can't find cache name on the array, cache name is: "
"%(name)s.") % {
'name': new_cache_name
})
LOG.error(msg)
raise exception.VolumeBackendAPIException(data=msg)
new_partition_id = None
new_partition_name = new_opts['partitionname']
if new_partition_name:
new_partition_id = self.restclient.get_partition_id_by_name(
new_partition_name)
if new_partition_id is None:
msg = (
_("Can't find partition name on the array, partition name "
"is: %(name)s.") % {
'name': new_partition_name
})
LOG.error(msg)
raise exception.VolumeBackendAPIException(data=msg)
# smarttier
if old_opts['policy'] != new_opts['policy']:
change_opts['policy'] = (old_opts['policy'], new_opts['policy'])
# smartcache
old_cache_id = old_opts['cacheid']
if old_cache_id != new_cache_id:
old_cache_name = None
if old_cache_id:
cache_info = self.restclient.get_cache_info_by_id(old_cache_id)
old_cache_name = cache_info['NAME']
change_opts['cacheid'] = ([old_cache_id, old_cache_name],
[new_cache_id, new_cache_name])
# smartpartition
old_partition_id = old_opts['partitionid']
if old_partition_id != new_partition_id:
old_partition_name = None
if old_partition_id:
partition_info = self.restclient.get_partition_info_by_id(
old_partition_id)
old_partition_name = partition_info['NAME']
change_opts['partitionid'] = ([
old_partition_id, old_partition_name
], [new_partition_id, new_partition_name])
# smartqos
new_qos = huawei_utils.get_qos_by_volume_type(new_type)
old_qos_id = self.restclient.get_qosid_by_lunid(lun_id)
old_qos = self._get_qos_specs_from_array(old_qos_id)
if old_qos != new_qos:
change_opts['qos'] = ([old_qos_id, old_qos], new_qos)
LOG.debug(
"Determine changes when retype. Migration: "
"%(migration)s, change_opts: %(change_opts)s.", {
'migration': migration,
'change_opts': change_opts
})
return migration, change_opts, lun_id
