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}