]> review.fuel-infra Code Review - openstack-build/cinder-build.git/commitdiff
Partial Revert "Removing Huawei drivers"
authorMike Perez <thingee@gmail.com>
Mon, 6 Apr 2015 04:40:47 +0000 (21:40 -0700)
committerMike Perez <thingee@gmail.com>
Tue, 7 Apr 2015 04:49:32 +0000 (04:49 +0000)
This reverts commit 5e26b0c1d1ae1984e51ae47441e8a243f224bf29.

Change-Id: Iad7c1afff1a932876255a37fc0b5bf5993246aaa

cinder/tests/test_huawei_18000.py [new file with mode: 0644]
cinder/tests/test_huawei_drivers_compatibility.py [new file with mode: 0644]
cinder/volume/drivers/huawei/__init__.py [new file with mode: 0644]
cinder/volume/drivers/huawei/huawei_18000.py [new file with mode: 0644]
cinder/volume/drivers/huawei/huawei_utils.py [new file with mode: 0644]
cinder/volume/drivers/huawei/rest_common.py [new file with mode: 0644]

diff --git a/cinder/tests/test_huawei_18000.py b/cinder/tests/test_huawei_18000.py
new file mode 100644 (file)
index 0000000..512afd7
--- /dev/null
@@ -0,0 +1,1017 @@
+# Copyright (c) 2013 - 2014 Huawei Technologies Co., Ltd.
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+""" Tests for huawei 18000 storage."""
+import json
+import os
+import shutil
+import tempfile
+import time
+from xml.dom import minidom
+
+import mock
+from oslo_log import log as logging
+
+from cinder import exception
+from cinder import test
+from cinder.volume import configuration as conf
+from cinder.volume.drivers.huawei import huawei_18000
+from cinder.volume.drivers.huawei import rest_common
+
+LOG = logging.getLogger(__name__)
+
+test_volume = {'name': 'volume-21ec7341-9256-497b-97d9-ef48edcf0635',
+               'size': 2,
+               'volume_name': 'vol1',
+               'id': '21ec7341-9256-497b-97d9-ef48edcf0635',
+               'volume_id': '21ec7341-9256-497b-97d9-ef48edcf0635',
+               'provider_auth': None,
+               'project_id': 'project',
+               'display_name': 'vol1',
+               'display_description': 'test volume',
+               'volume_type_id': None,
+               'provider_location': '11'}
+
+test_snap = {'name': 'volume-21ec7341-9256-497b-97d9-ef48edcf0635',
+             'size': 1,
+             'volume_name': 'vol1',
+             'id': '21ec7341-9256-497b-97d9-ef48edcf0635',
+             'volume_id': '21ec7341-9256-497b-97d9-ef48edcf0635',
+             'provider_auth': None,
+             'project_id': 'project',
+             'display_name': 'vol1',
+             'display_description': 'test volume',
+             'volume_type_id': None,
+             'provider_location': '11'}
+
+FakeConnector = {'initiator': 'iqn.1993-08.debian:01:ec2bff7ac3a3',
+                 'wwpns': ['10000090fa0d6754'],
+                 'wwnns': ['10000090fa0d6755'],
+                 'host': 'ubuntuc'}
+
+
+def find_data(method):
+    if method is None:
+        data = """{"error":{"code":0},
+                   "data":{"ID":"1",
+                           "NAME":"5mFHcBv4RkCcD+JyrWc0SA"}}"""
+    if method == 'GET':
+        data = """{"error":{"code":0},
+                   "data":[{"ID":"1",
+                   "NAME":"IexzQZJWSXuX2e9I7c8GNQ"}]}"""
+    return data
+
+
+def find_data_lun(method):
+    if method == 'GET':
+        data = """{"error":{"code":0},
+                   "data":{"ID":"1",
+                   "NAME":"IexzQZJWSXuX2e9I7c8GNQ",
+                   "HEALTHSTATUS":"1",
+                   "RUNNINGSTATUS":"27"}}"""
+    return data
+
+
+def find_data_lungroup(method):
+    if method is None:
+        data = '{"error":{"code":0},\
+                 "data":{"NAME":"5mFHcBv4RkCcD+JyrWc0SA",\
+                         "DESCRIPTION":"5mFHcBv4RkCcD+JyrWc0SA",\
+                         "ID":"11",\
+                         "TYPE":256}}'
+
+    if method == "GET":
+        data = """{"error":{"code":0},
+                   "data":[{
+                    "NAME":"OpenStack_LunGroup_1",
+                    "DESCRIPTION":"5mFHcBv4RkCcD+JyrWc0SA",
+                    "ID":"11",
+                    "TYPE":256}]}"""
+
+    if method == "DELETE":
+        data = """{"error":{"code":0},
+                   "data":[{
+                   "NAME":"IexzQZJWSXuX2e9I7c8GNQ",
+                   "DESCRIPTION":"5mFHcBv4RkCcD+JyrWc0SA",
+                   "ID":"11",
+                   "TYPE":256}]}"""
+    return data
+
+
+def find_data_hostgroup(method):
+    if method is None:
+        data = """{"error":{"code":0},"data":{
+                    "NAME":"ubuntuc",
+                    "DESCRIPTION":"",
+                    "ID":"0",
+                    "TYPE":14}}"""
+
+    if method == "GET":
+        data = """{"error":{"code":0},"data":[{
+                        "NAME":"ubuntuc",
+                        "DESCRIPTION":"",
+                        "ID":"0","TYPE":14}]}"""
+    return data
+
+
+def Fake_sleep(time):
+    pass
+
+
+def find_data_mappingview(method, other_flag):
+    if method is None:
+        data = """{"error":{"code":0},"data":
+            {"WORKMODE":"255","HEALTHSTATUS":"1",
+            "NAME":"mOWtSXnaQKi3hpB3tdFRIQ",
+            "RUNNINGSTATUS":"27","DESCRIPTION":"",
+            "ENABLEINBANDCOMMAND":"true",
+            "ID":"1","INBANDLUNWWN":"",
+            "TYPE":245}}
+            """
+
+    if method == "GET":
+        if other_flag:
+            data = """{"error":{"code":0},"data":[
+                {"WORKMODE":"255","HEALTHSTATUS":"1",
+                "NAME":"mOWtSXnaQKi3hpB3tdFRIQ",
+                "RUNNINGSTATUS":"27","DESCRIPTION":"",
+                "ENABLEINBANDCOMMAND":"true","ID":"1",
+                "INBANDLUNWWN":"","TYPE":245},
+                {"WORKMODE":"255","HEALTHSTATUS":"1",
+                "NAME":"YheUoRwbSX2BxN767nvLSw",
+                "RUNNINGSTATUS":"27","DESCRIPTION":"",
+                "ENABLEINBANDCOMMAND":"true",
+                "ID":"2","INBANDLUNWWN":"",
+                "TYPE":245}]}
+                """
+        else:
+            data = """{"error":{"code":0},"data":[
+                {"WORKMODE":"255","HEALTHSTATUS":"1",
+                "NAME":"IexzQZJWSXuX2e9I7c8GNQ",
+                "RUNNINGSTATUS":"27","DESCRIPTION":"",
+                "ENABLEINBANDCOMMAND":"true","ID":"1",
+                "INBANDLUNWWN":"","TYPE":245},
+                {"WORKMODE":"255","HEALTHSTATUS":"1",
+                "NAME":"YheUoRwbSX2BxN767nvLSw",
+                "RUNNINGSTATUS":"27","DESCRIPTION":"",
+                "ENABLEINBANDCOMMAND":"true","ID":"2",
+                "INBANDLUNWWN":"","TYPE":245}]}
+                """
+    return data
+
+
+def find_data_snapshot(method):
+    if method is None:
+        data = '{"error":{"code":0},"data":{"ID":11,"NAME":"YheUoRwbSX2BxN7"}}'
+    if method == "GET":
+        data = """{"error":{"code":0},"data":[
+                    {"ID":11,"NAME":"SDFAJSDFLKJ"},
+                    {"ID":12,"NAME":"SDFAJSDFLKJ2"}]}"""
+    return data
+
+
+def find_data_host(method):
+    if method is None:
+        data = """{"error":{"code":0},
+               "data":
+                {"PARENTTYPE":245,
+                "NAME":"Default Host",
+                "DESCRIPTION":"",
+                "RUNNINGSTATUS":"1",
+                "IP":"",
+                "PARENTNAME":"0",
+                "OPERATIONSYSTEM":"1",
+                "LOCATION":"",
+                "HEALTHSTATUS":"1",
+                "MODEL":"",
+                "ID":"0",
+                "PARENTID":"0",
+                "NETWORKNAME":"",
+                "TYPE":21}} """
+
+    if method == "GET":
+        data = """{"error":{"code":0},
+               "data":[
+                {"PARENTTYPE":245,"NAME":"ubuntuc",
+                "DESCRIPTION":"","RUNNINGSTATUS":"1",
+                "IP":"","PARENTNAME":"",
+                "OPERATIONSYSTEM":"0","LOCATION":"",
+                "HEALTHSTATUS":"1","MODEL":"",
+                "ID":"1","PARENTID":"",
+                "NETWORKNAME":"","TYPE":21},
+                {"PARENTTYPE":245,"NAME":"ubuntu",
+                "DESCRIPTION":"","RUNNINGSTATUS":"1",
+                "IP":"","PARENTNAME":"","OPERATIONSYSTEM":"0",
+                "LOCATION":"","HEALTHSTATUS":"1",
+                "MODEL":"","ID":"2","PARENTID":"",
+                "NETWORKNAME":"","TYPE":21}]} """
+    return data
+
+
+def find_data_host_associate(method):
+    if (method is None) or (method == "GET"):
+        data = '{"error":{"code":0}}'
+    return data
+
+
+def data_session(url):
+    if url == "/xx/sessions":
+        data = """{"error":{"code":0},
+                       "data":{"username":"admin",
+                               "iBaseToken":"2001031430",
+                               "deviceid":"210235G7J20000000000"}}"""
+    if url == "sessions":
+        data = '{"error":{"code":0},"data":{"ID":11}}'
+    return data
+
+
+def data_lun(url, method):
+    if url == "lun":
+        data = find_data(method)
+    if url == "lun/1":
+        data = find_data_lun(method)
+    if url == "lun?range=[0-65535]":
+        data = find_data(method)
+    if url == "lungroup?range=[0-8191]":
+        data = find_data_lungroup(method)
+    if url == "lungroup":
+        data = find_data_lungroup(method)
+    if url == "lungroup/associate":
+        data = """{"error":{"code":0},
+                   "data":{"NAME":"5mFHcBv4RkCcD+JyrWc0SA",
+                           "DESCRIPTION":"5mFHcBv4RkCcD+JyrWc0SA",
+                           "ID":"11",
+                           "TYPE":256}}"""
+    return data
+
+
+def data_host(url, method):
+    if url == "hostgroup":
+        data = find_data_hostgroup(method)
+    if url == "hostgroup?range=[0-8191]":
+        data = find_data_hostgroup(method)
+    if url == "host":
+        data = find_data_host(method)
+    if url == "host?range=[0-65534]":
+        data = find_data_host(method)
+    if url == "host/associate":
+        data = find_data_host_associate(method)
+    if url == "host/associate?TYPE=21&ASSOCIATEOBJTYPE=14&ASSOCIATEOBJID=0":
+        data = find_data_host_associate(method)
+    return data
+
+
+def find_data_storagepool_snapshot(url, method):
+    if url == "storagepool":
+        data = """{"error":{"code":0},
+                  "data":[{"USERFREECAPACITY":"985661440",
+                           "ID":"0",
+                           "NAME":"OpenStack_Pool",
+                           "USERTOTALCAPACITY":"985661440"
+                           }]}"""
+    if url == "snapshot":
+        data = find_data_snapshot(method)
+    if url == "snapshot/activate":
+        data = """{"error":{"code":0},"data":[
+                        {"ID":11,"NAME":"SDFAJSDFLKJ"},
+                        {"ID":12,"NAME":"SDFAJSDFLKJ"}]}"""
+
+    return data
+
+
+def find_data_luncpy_range_eth_port(url):
+    if url == "luncopy":
+        data = """{"error":{"code":0},
+                "data":{"COPYSTOPTIME":"-1",
+                "HEALTHSTATUS":"1",
+                "NAME":"w1PSNvu6RumcZMmSh4/l+Q==",
+                "RUNNINGSTATUS":"36",
+                "DESCRIPTION":"w1PSNvu6RumcZMmSh4/l+Q==",
+                "ID":"0","LUNCOPYTYPE":"1",
+                "COPYPROGRESS":"0","COPYSPEED":"2",
+                "TYPE":219,"COPYSTARTTIME":"-1"}}"""
+
+    if url == "LUNCOPY?range=[0-100000]":
+        data = """{"error":{"code":0},
+                "data":[{"COPYSTOPTIME":"1372209335",
+                "HEALTHSTATUS":"1",
+                "NAME":"w1PSNvu6RumcZMmSh4/l+Q==",
+                "RUNNINGSTATUS":"40",
+                "DESCRIPTION":"w1PSNvu6RumcZMmSh4/l+Q==",
+                "ID":"0","LUNCOPYTYPE":"1",
+                "COPYPROGRESS":"100",
+                "COPYSPEED":"2",
+                "TYPE":219,
+                "COPYSTARTTIME":"1372209329"}]}"""
+
+    if url == "eth_port":
+        data = """{"error":{"code":0},
+                    "data":[{"PARENTTYPE":209,
+                    "MACADDRESS":"00:22:a1:0a:79:57",
+                    "ETHNEGOTIATE":"-1","ERRORPACKETS":"0",
+                    "IPV4ADDR":"192.168.100.2",
+                    "IPV6GATEWAY":"","IPV6MASK":"0",
+                    "OVERFLOWEDPACKETS":"0","ISCSINAME":"P0",
+                    "HEALTHSTATUS":"1","ETHDUPLEX":"2",
+                    "ID":"16909568","LOSTPACKETS":"0",
+                    "TYPE":213,"NAME":"P0","INIORTGT":"4",
+                    "RUNNINGSTATUS":"10","IPV4GATEWAY":"",
+                    "BONDNAME":"","STARTTIME":"1371684218",
+                    "SPEED":"1000","ISCSITCPPORT":"0",
+                    "IPV4MASK":"255.255.0.0","IPV6ADDR":"",
+                    "LOGICTYPE":"0","LOCATION":"ENG0.B5.P0",
+                    "MTU":"1500","PARENTID":"1.5"}]}"""
+    return data
+
+
+class Fake18000Common(rest_common.RestCommon):
+
+    def __init__(self, configuration):
+        rest_common.RestCommon.__init__(self, configuration)
+        self.test_normal = True
+        self.other_flag = True
+        self.associate_flag = True
+        self.connect_flag = False
+        self.delete_flag = False
+        self.terminateFlag = False
+        self.deviceid = None
+
+    def _change_file_mode(self, filepath):
+        pass
+
+    def _parse_volume_type(self, volume):
+
+        poolinfo = self._find_pool_info()
+        volume_size = self._get_volume_size(poolinfo, volume)
+
+        params = {'LUNType': 0,
+                  'WriteType': '1',
+                  'PrefetchType': '3',
+                  'qos_level': 'Qos-high',
+                  'StripUnitSize': '64',
+                  'PrefetchValue': '0',
+                  'PrefetchTimes': '0',
+                  'qos': 'OpenStack_Qos_High',
+                  'MirrorSwitch': '1',
+                  'tier': 'Tier_high'}
+
+        params['volume_size'] = volume_size
+        params['pool_id'] = poolinfo['ID']
+        return params
+
+    def _get_snapshotid_by_name(self, snapshot_name):
+        return "11"
+
+    def _get_qosid_by_lunid(self, lunid):
+        return ""
+
+    def _check_snapshot_exist(self, snapshot_id):
+        return True
+
+    def fc_initiator_data(self):
+        data = """{"error":{"code":0},"data":[
+              {"HEALTHSTATUS":"1","NAME":"",
+              "MULTIPATHTYPE":"1","ISFREE":"true",
+              "RUNNINGSTATUS":"27","ID":"10000090fa0d6754",
+              "OPERATIONSYSTEM":"255","TYPE":223},
+              {"HEALTHSTATUS":"1","NAME":"",
+              "MULTIPATHTYPE":"1","ISFREE":"true",
+              "RUNNINGSTATUS":"27","ID":"10000090fa0d6755",
+              "OPERATIONSYSTEM":"255","TYPE":223}]}"""
+        return data
+
+    def host_link(self):
+        data = """{"error":{"code":0},
+            "data":[{"PARENTTYPE":21,
+            "TARGET_ID":"0000000000000000",
+            "INITIATOR_NODE_WWN":"20000090fa0d6754",
+            "INITIATOR_TYPE":"223",
+            "RUNNINGSTATUS":"27",
+            "PARENTNAME":"ubuntuc",
+            "INITIATOR_ID":"10000090fa0d6754",
+            "TARGET_PORT_WWN":"24000022a10a2a39",
+            "HEALTHSTATUS":"1",
+            "INITIATOR_PORT_WWN":"10000090fa0d6754",
+            "ID":"010000090fa0d675-0000000000110400",
+            "TARGET_NODE_WWN":"21000022a10a2a39",
+            "PARENTID":"1","CTRL_ID":"0",
+            "TYPE":255,"TARGET_TYPE":"212"}]}"""
+        self.connect_flag = True
+        return data
+
+    def call(self, url=False, data=None, method=None):
+
+        url = url.replace('http://100.115.10.69:8082/deviceManager/rest', '')
+        url = url.replace('/210235G7J20000000000/', '')
+        data = None
+
+        if self.test_normal:
+            if url == "/xx/sessions" or url == "sessions":
+                data = data_session(url)
+
+            if url == "lun/count?TYPE=11&ASSOCIATEOBJTYPE=256&"\
+                      "ASSOCIATEOBJID=11":
+                data = """{"data":{"COUNT":"7"},
+                           "error":{"code":0,"description":"0"}}"""
+
+            if url == "lungroup/associate?TYPE=256&ASSOCIATEOBJTYPE=11&"\
+                      "ASSOCIATEOBJID=11":
+                data = """{"error":{"code":0},
+                           "data":[{"ID":11}]}"""
+
+            if url == "storagepool" or url == "snapshot" or url == "snaps"\
+                      "hot/activate":
+                data = find_data_storagepool_snapshot(url, method)
+
+            if url == "lungroup" or url == "lungroup/associate"\
+                      or url == "lun" or url == "lun/1":
+                data = data_lun(url, method)
+
+            if url == "lun?range=[0-65535]" or url == "lungroup?r"\
+                                                      "ange=[0-8191]":
+                data = data_lun(url, method)
+
+            if url == "lungroup/associate?ID=11"\
+                      "&ASSOCIATEOBJTYPE=11&ASSOCIATEOBJID=11"\
+                      or url == "lungroup/associate?ID=12"\
+                      "&ASSOCIATEOBJTYPE=11&ASSOCIATEOBJID=12":
+                data = '{"error":{"code":0}}'
+                self.terminateFlag = True
+
+            if url == "fc_initiator/10000090fa0d6754" or url == "lun/11"\
+                      or url == "LUNCOPY/0"\
+                      or url == "mappingview/REMOVE_ASSOCIATE":
+                data = '{"error":{"code":0}}'
+                self.delete_flag = True
+
+            if url == "LUNCOPY/start" or url == "mappingview/1"\
+                      or url == "hostgroup/associate":
+                data = '{"error":{"code":0}}'
+
+            if url == "MAPPINGVIEW/CREATE_ASSOCIATE" or url == "snapshot/11"\
+                      or url == "snapshot/stop" or url == "LUNGroup/11":
+                data = '{"error":{"code":0}}'
+                self.delete_flag = True
+
+            if url == "luncopy" or url == "eth_port" or url == "LUNC"\
+                      "OPY?range=[0-100000]":
+                data = find_data_luncpy_range_eth_port(url)
+
+            if url == "iscsidevicename":
+                data = """{"error":{"code":0},
+                        "data":[{"CMO_ISCSI_DEVICE_NAME":
+"iqn.2006-08.com.huawei:oceanstor:21000022a10a2a39:iscsinametest"}]}"""
+
+            if url == "hostgroup" or url == "host" or url == "host/associate":
+                data = data_host(url, method)
+
+            if url == "host/associate?TYPE=21&ASSOCIATEOBJTYPE=14&AS"\
+                      "SOCIATEOBJID=0":
+                data = data_host(url, method)
+
+            if url == "hostgroup?range=[0-8191]" or url == "host?ra"\
+                      "nge=[0-65534]":
+                data = data_host(url, method)
+
+            if url == "iscsi_initiator/iqn.1993-08.debian:01:ec2bff7ac3a3":
+                data = """{"error":{"code":0},"data":{
+                            "ID":"iqn.1993-08.debian:01:ec2bff7ac3a3",
+                            "NAME":"iqn.1993-08.debian:01:ec2bff7ac3a3",
+                            "ISFREE":"True"}}"""
+
+            if url == "iscsi_initiator" or url == "iscsi_initiator/"\
+               or url == "iscsi_initiator?range=[0-65535]":
+                data = '{"error":{"code":0}}'
+
+            if url == "mappingview" or url == "mappingview?range=[0-65535]":
+                data = find_data_mappingview(method, self.other_flag)
+
+            if (url == ("lun/associate?ID=1&TYPE=11&"
+                        "ASSOCIATEOBJTYPE=21&ASSOCIATEOBJID=0")
+               or url == ("lun/associate?TYPE=11&ASSOCIATEOBJTYPE=256"
+                          "&ASSOCIATEOBJID=11")
+               or (url == ("lun/associate?TYPE=11&ASSOCIATEOBJTYPE=256"
+                           "&ASSOCIATEOBJID=12")
+               and not self.associate_flag)):
+                data = '{"error":{"code":0},"data":[{"ID":"11"}]}'
+            if ((url == ("lun/associate?TYPE=11&ASSOCIATEOBJTYPE=256"
+                         "&ASSOCIATEOBJID=12"))
+               and self.associate_flag):
+                data = '{"error":{"code":0},"data":[{"ID":"12"}]}'
+
+            if url == "fc_initiator?ISFREE=true&range=[0-1000]":
+                data = self.fc_initiator_data()
+
+            if url == "host_link?INITIATOR_TYPE=223&INITIATOR_PORT_WWN="\
+                      "10000090fa0d6754":
+                data = self.host_link()
+
+            if url == "mappingview/associate?TYPE=245&"\
+                      "ASSOCIATEOBJTYPE=14&ASSOCIATEOBJID=0"\
+                      or url == "mappingview/associate?TYPE=245&"\
+                      "ASSOCIATEOBJTYPE=256&ASSOCIATEOBJID=11":
+                data = '{"error":{"code":0},"data":[{"ID":11,"NAME":"test"}]}'
+
+            if url == "lun/associate?TYPE=11&"\
+                      "ASSOCIATEOBJTYPE=21&ASSOCIATEOBJID=1":
+                data = '{"error":{"code":0}}'
+                self.connect_flag = True
+
+            if url == "iscsi_tgt_port":
+                data = '{"data":[{"ETHPORTID":"139267",\
+                "ID":"iqn.oceanstor:21004846fb8ca15f::22003:111.111.101.244",\
+                "TPGT":"8196","TYPE":249}],\
+                "error":{"code":0,"description":"0"}}'
+
+        else:
+            data = '{"error":{"code":31755596}}'
+            if (url == "lun/11") and (method == "GET"):
+                data = """{"error":{"code":0},"data":{"ID":"11",
+                       "IOCLASSID":"11",
+                       "NAME":"5mFHcBv4RkCcD+JyrWc0SA"}}"""
+        res_json = json.loads(data)
+
+        return res_json
+
+
+class Fake18000Storage(huawei_18000.Huawei18000ISCSIDriver):
+    """Fake Huawei Storage, Rewrite some methods of HuaweiISCSIDriver."""
+
+    def __init__(self, configuration):
+        super(Fake18000Storage, self).__init__(configuration)
+        self.configuration = configuration
+
+    def do_setup(self):
+        self.common = Fake18000Common(configuration=self.configuration)
+
+
+class Fake18000FCStorage(huawei_18000.Huawei18000FCDriver):
+    """Fake Huawei Storage, Rewrite some methods of HuaweiISCSIDriver."""
+    def __init__(self, configuration):
+        super(Fake18000FCStorage, self).__init__(configuration)
+        self.configuration = configuration
+
+    def do_setup(self):
+        self.common = Fake18000Common(configuration=self.configuration)
+
+
+class Huawei18000ISCSIDriverTestCase(test.TestCase):
+
+    def setUp(self):
+        super(Huawei18000ISCSIDriverTestCase, self).setUp()
+        self.tmp_dir = tempfile.mkdtemp()
+        self.fake_conf_file = self.tmp_dir + '/cinder_huawei_conf.xml'
+        self.addCleanup(shutil.rmtree, self.tmp_dir)
+        self.create_fake_conf_file()
+        self.addCleanup(os.remove, self.fake_conf_file)
+        self.configuration = mock.Mock(spec=conf.Configuration)
+        self.configuration.cinder_huawei_conf_file = self.fake_conf_file
+        self.stubs.Set(time, 'sleep', Fake_sleep)
+        driver = Fake18000Storage(configuration=self.configuration)
+        self.driver = driver
+        self.driver.do_setup()
+        self.driver.common.test_normal = True
+
+    def testloginSuccess(self):
+        deviceid = self.driver.common.login()
+        self.assertEqual(deviceid, '210235G7J20000000000')
+
+    def testcreatevolumesuccess(self):
+        self.driver.common.login()
+        lun_info = self.driver.create_volume(test_volume)
+        self.assertEqual(lun_info['provider_location'], '1')
+        self.assertEqual(lun_info['lun_info']['NAME'],
+                         '5mFHcBv4RkCcD+JyrWc0SA')
+
+    def testcreatesnapshotsuccess(self):
+        self.driver.common.login()
+        lun_info = self.driver.create_snapshot(test_volume)
+        self.assertEqual(lun_info['provider_location'], 11)
+        self.assertEqual(lun_info['lun_info']['NAME'], 'YheUoRwbSX2BxN7')
+
+    def testdeletevolumesuccess(self):
+        self.driver.common.login()
+        self.driver.common.delete_flag = False
+        self.driver.delete_volume(test_volume)
+        self.assertTrue(self.driver.common.delete_flag)
+
+    def testdeletesnapshotsuccess(self):
+        self.driver.common.login()
+        self.driver.common.delete_flag = False
+        self.driver.delete_snapshot(test_snap)
+        self.assertTrue(self.driver.common.delete_flag)
+
+    def testcolonevolumesuccess(self):
+        self.driver.common.login()
+        lun_info = self.driver.create_cloned_volume(test_volume,
+                                                    test_volume)
+        self.assertEqual(lun_info['provider_location'], '1')
+        self.assertEqual(lun_info['lun_info']['NAME'],
+                         '5mFHcBv4RkCcD+JyrWc0SA')
+
+    def testcreateolumefromsnapsuccess(self):
+        self.driver.common.login()
+        lun_info = self.driver.create_volume_from_snapshot(test_volume,
+                                                           test_volume)
+        self.assertEqual(lun_info['provider_location'], '1')
+        self.assertEqual(lun_info['lun_info']['NAME'],
+                         '5mFHcBv4RkCcD+JyrWc0SA')
+
+    def testinitializeconnectionsuccess(self):
+        self.driver.common.login()
+        iscsi_properties = self.driver.initialize_connection(test_volume,
+                                                             FakeConnector)
+        self.assertEqual(iscsi_properties['data']['target_lun'], 1)
+
+    def testterminateconnectionsuccess(self):
+        self.driver.common.login()
+        self.driver.common.terminateFlag = False
+        self.driver.terminate_connection(test_volume, FakeConnector)
+        self.assertTrue(self.driver.common.terminateFlag)
+
+    def testinitializeconnectionnoviewsuccess(self):
+        self.driver.common.login()
+        self.driver.common.other_flag = False
+        self.driver.common.connect_flag = False
+        self.driver.initialize_connection(test_volume, FakeConnector)
+        self.assertTrue(self.driver.common.connect_flag)
+
+    def testterminateconnectionoviewnsuccess(self):
+        self.driver.common.login()
+        self.driver.common.terminateFlag = False
+        self.driver.terminate_connection(test_volume, FakeConnector)
+        self.assertTrue(self.driver.common.terminateFlag)
+
+    def testgetvolumestatus(self):
+        self.driver.common.login()
+        data = self.driver.get_volume_stats()
+        self.assertEqual(data['driver_version'], '1.1.0')
+
+    def testloginfail(self):
+        self.driver.common.test_normal = False
+        self.assertRaises(exception.CinderException, self.driver.common.login)
+
+    def testcreatesnapshotfail(self):
+        self.driver.common.login()
+        self.driver.common.test_normal = False
+        self.assertRaises(exception.CinderException,
+                          self.driver.create_snapshot, test_volume)
+
+    def testcreatevolumefail(self):
+        self.driver.common.login()
+        self.driver.common.test_normal = False
+        self.assertRaises(exception.CinderException,
+                          self.driver.create_volume, test_volume)
+
+    def testdeletevolumefail(self):
+        self.driver.common.login()
+        self.driver.common.test_normal = False
+        self.assertRaises(exception.CinderException,
+                          self.driver.delete_volume, test_volume)
+
+    def testdeletesnapshotfail(self):
+        self.driver.common.login()
+        self.driver.common.test_normal = False
+        self.assertRaises(exception.CinderException,
+                          self.driver.delete_snapshot, test_volume)
+
+    def testinitializeconnectionfail(self):
+        self.driver.common.login()
+        self.driver.common.test_normal = False
+        self.assertRaises(exception.CinderException,
+                          self.driver.initialize_connection,
+                          test_volume, FakeConnector)
+
+    def testgetdefaulttimeout(self):
+        result = self.driver.common._get_default_timeout()
+        self.assertEqual('43200', result)
+
+    def testgetwaitinterval(self):
+        result = self.driver.common._get_wait_interval('LUNReadyWaitInterval')
+        self.assertEqual('2', result)
+
+    def test_lun_is_associated_to_lungroup(self):
+        self.driver.common.login()
+        self.driver.common._associate_lun_to_lungroup('11', '11')
+        result = self.driver.common._is_lun_associated_to_lungroup('11', '11')
+        self.assertTrue(result)
+
+    def test_lun_is_not_associated_to_lun_group(self):
+        self.driver.common.login()
+        self.driver.common._associate_lun_to_lungroup('12', '12')
+        self.driver.common.associate_flag = True
+        result = self.driver.common._is_lun_associated_to_lungroup('12', '12')
+        self.assertTrue(result)
+        self.driver.common._remove_lun_from_lungroup('12', '12')
+        self.driver.common.associate_flag = False
+        result = self.driver.common._is_lun_associated_to_lungroup('12', '12')
+        self.assertFalse(result)
+
+    def create_fake_conf_file(self):
+        """Create a fake Config file
+
+          Huawei storage customize a XML configuration file, the configuration
+          file is used to set the Huawei storage custom parameters, therefore,
+          in the UT test we need to simulate such a configuration file
+        """
+        doc = minidom.Document()
+
+        config = doc.createElement('config')
+        doc.appendChild(config)
+
+        storage = doc.createElement('Storage')
+        config.appendChild(storage)
+        controllerip0 = doc.createElement('ControllerIP0')
+        controllerip0_text = doc.createTextNode('10.10.10.1')
+        controllerip0.appendChild(controllerip0_text)
+        storage.appendChild(controllerip0)
+        controllerip1 = doc.createElement('ControllerIP1')
+        controllerip1_text = doc.createTextNode('10.10.10.2')
+        controllerip1.appendChild(controllerip1_text)
+        storage.appendChild(controllerip1)
+        username = doc.createElement('UserName')
+        username_text = doc.createTextNode('admin')
+        username.appendChild(username_text)
+        storage.appendChild(username)
+        userpassword = doc.createElement('UserPassword')
+        userpassword_text = doc.createTextNode('Admin@storage')
+        userpassword.appendChild(userpassword_text)
+        storage.appendChild(userpassword)
+        url = doc.createElement('RestURL')
+        url_text = doc.createTextNode('http://100.115.10.69:8082/'
+                                      'deviceManager/rest/')
+        url.appendChild(url_text)
+        storage.appendChild(url)
+
+        lun = doc.createElement('LUN')
+        config.appendChild(lun)
+        storagepool = doc.createElement('StoragePool')
+        pool_text = doc.createTextNode('OpenStack_Pool')
+        storagepool.appendChild(pool_text)
+        lun.appendChild(storagepool)
+
+        timeout = doc.createElement('Timeout')
+        timeout_text = doc.createTextNode('43200')
+        timeout.appendChild(timeout_text)
+        lun.appendChild(timeout)
+
+        lun_ready_wait_interval = doc.createElement('LUNReadyWaitInterval')
+        lun_ready_wait_interval_text = doc.createTextNode('2')
+        lun_ready_wait_interval.appendChild(lun_ready_wait_interval_text)
+        lun.appendChild(lun_ready_wait_interval)
+
+        prefetch = doc.createElement('Prefetch')
+        prefetch.setAttribute('Type', '0')
+        prefetch.setAttribute('Value', '0')
+        lun.appendChild(prefetch)
+
+        iscsi = doc.createElement('iSCSI')
+        config.appendChild(iscsi)
+        defaulttargetip = doc.createElement('DefaultTargetIP')
+        defaulttargetip_text = doc.createTextNode('100.115.10.68')
+        defaulttargetip.appendChild(defaulttargetip_text)
+        iscsi.appendChild(defaulttargetip)
+        initiator = doc.createElement('Initiator')
+        initiator.setAttribute('Name', 'iqn.1993-08.debian:01:ec2bff7ac3a3')
+        initiator.setAttribute('TargetIP', '192.168.100.2')
+        iscsi.appendChild(initiator)
+
+        fakefile = open(self.fake_conf_file, 'w')
+        fakefile.write(doc.toprettyxml(indent=''))
+        fakefile.close()
+
+
+class Huawei18000FCDriverTestCase(test.TestCase):
+
+    def setUp(self):
+        super(Huawei18000FCDriverTestCase, self).setUp()
+        self.tmp_dir = tempfile.mkdtemp()
+        self.fake_conf_file = self.tmp_dir + '/cinder_huawei_conf.xml'
+        self.addCleanup(shutil.rmtree, self.tmp_dir)
+        self.create_fake_conf_file()
+        self.addCleanup(os.remove, self.fake_conf_file)
+        self.configuration = mock.Mock(spec=conf.Configuration)
+        self.configuration.cinder_huawei_conf_file = self.fake_conf_file
+        self.stubs.Set(time, 'sleep', Fake_sleep)
+        driver = Fake18000FCStorage(configuration=self.configuration)
+        self.driver = driver
+        self.driver.do_setup()
+        self.driver.common.test_normal = True
+
+    def testloginSuccess(self):
+        deviceid = self.driver.common.login()
+        self.assertEqual(deviceid, '210235G7J20000000000')
+
+    def testcreatevolumesuccess(self):
+        self.driver.common.login()
+        lun_info = self.driver.create_volume(test_volume)
+        self.assertEqual(lun_info['provider_location'], '1')
+        self.assertEqual(lun_info['lun_info']['NAME'],
+                         '5mFHcBv4RkCcD+JyrWc0SA')
+
+    def testcreatesnapshotsuccess(self):
+        self.driver.common.login()
+        lun_info = self.driver.create_snapshot(test_volume)
+        self.assertEqual(lun_info['provider_location'], 11)
+        self.assertEqual(lun_info['lun_info']['NAME'], 'YheUoRwbSX2BxN7')
+
+    def testdeletevolumesuccess(self):
+        self.driver.common.login()
+        self.driver.common.delete_flag = False
+        self.driver.delete_volume(test_volume)
+        self.assertTrue(self.driver.common.delete_flag)
+
+    def testdeletesnapshotsuccess(self):
+        self.driver.common.login()
+        self.driver.common.delete_flag = False
+        self.driver.delete_snapshot(test_snap)
+        self.assertTrue(self.driver.common.delete_flag)
+
+    def testcolonevolumesuccess(self):
+        self.driver.common.login()
+        lun_info = self.driver.create_cloned_volume(test_volume,
+                                                    test_volume)
+        self.assertEqual(lun_info['provider_location'], '1')
+        self.assertEqual(lun_info['lun_info']['NAME'],
+                         '5mFHcBv4RkCcD+JyrWc0SA')
+
+    def testcreateolumefromsnapsuccess(self):
+        self.driver.common.login()
+        volumeid = self.driver.create_volume_from_snapshot(test_volume,
+                                                           test_volume)
+        self.assertEqual(volumeid['provider_location'], '1')
+
+    def testinitializeconnectionsuccess(self):
+        self.driver.common.login()
+        properties = self.driver.initialize_connection(test_volume,
+                                                       FakeConnector)
+        self.assertEqual(properties['data']['target_lun'], 1)
+
+    def testterminateconnectionsuccess(self):
+        self.driver.common.login()
+        self.driver.common.terminateFlag = False
+        self.driver.terminate_connection(test_volume, FakeConnector)
+        self.assertTrue(self.driver.common.terminateFlag)
+
+    def testinitializeconnectionnoviewsuccess(self):
+        self.driver.common.login()
+        self.driver.common.other_flag = False
+        self.driver.common.connect_flag = False
+        self.driver.initialize_connection(test_volume, FakeConnector)
+        self.assertTrue(self.driver.common.connect_flag)
+
+    def testterminateconnectionoviewnsuccess(self):
+        self.driver.common.login()
+        self.driver.common.terminateFlag = False
+        self.driver.terminate_connection(test_volume, FakeConnector)
+        self.assertTrue(self.driver.common.terminateFlag)
+
+    def testgetvolumestatus(self):
+        self.driver.common.login()
+        data = self.driver.get_volume_stats()
+        self.assertEqual(data['driver_version'], '1.1.0')
+
+    def testloginfail(self):
+        self.driver.common.test_normal = False
+        self.assertRaises(exception.CinderException,
+                          self.driver.common.login)
+
+    def testcreatesnapshotfail(self):
+        self.driver.common.login()
+        self.driver.common.test_normal = False
+        self.assertRaises(exception.CinderException,
+                          self.driver.create_snapshot, test_volume)
+
+    def testcreatevolumefail(self):
+        self.driver.common.login()
+        self.driver.common.test_normal = False
+        self.assertRaises(exception.CinderException,
+                          self.driver.create_volume, test_volume)
+
+    def testdeletevolumefail(self):
+        self.driver.common.login()
+        self.driver.common.test_normal = False
+        self.assertRaises(exception.CinderException,
+                          self.driver.delete_volume, test_volume)
+
+    def testdeletesnapshotfail(self):
+        self.driver.common.login()
+        self.driver.common.test_normal = False
+        self.assertRaises(exception.CinderException,
+                          self.driver.delete_snapshot, test_volume)
+
+    def testinitializeconnectionfail(self):
+        self.driver.common.login()
+        self.driver.common.test_normal = False
+        self.assertRaises(exception.CinderException,
+                          self.driver.initialize_connection,
+                          test_volume, FakeConnector)
+
+    def testgetdefaulttimeout(self):
+        result = self.driver.common._get_default_timeout()
+        self.assertEqual('43200', result)
+
+    def testgetwaitinterval(self):
+        result = self.driver.common._get_wait_interval('LUNReadyWaitInterval')
+        self.assertEqual('2', result)
+
+    def test_lun_is_associated_to_lungroup(self):
+        self.driver.common.login()
+        self.driver.common._associate_lun_to_lungroup('11', '11')
+        result = self.driver.common._is_lun_associated_to_lungroup('11', '11')
+        self.assertTrue(result)
+
+    def test_lun_is_not_associated_to_lun_group(self):
+        self.driver.common.login()
+        self.driver.common._associate_lun_to_lungroup('12', '12')
+        self.driver.common.associate_flag = True
+        result = self.driver.common._is_lun_associated_to_lungroup('12', '12')
+        self.assertTrue(result)
+        self.driver.common._remove_lun_from_lungroup('12', '12')
+        self.driver.common.associate_flag = False
+        result = self.driver.common._is_lun_associated_to_lungroup('12', '12')
+        self.assertFalse(result)
+
+    def create_fake_conf_file(self):
+        """Create a fake Config file
+
+          Huawei storage customize a XML configuration file, the configuration
+          file is used to set the Huawei storage custom parameters, therefore,
+          in the UT test we need to simulate such a configuration file
+        """
+        doc = minidom.Document()
+
+        config = doc.createElement('config')
+        doc.appendChild(config)
+
+        storage = doc.createElement('Storage')
+        config.appendChild(storage)
+        controllerip0 = doc.createElement('ControllerIP0')
+        controllerip0_text = doc.createTextNode('10.10.10.1')
+        controllerip0.appendChild(controllerip0_text)
+        storage.appendChild(controllerip0)
+        controllerip1 = doc.createElement('ControllerIP1')
+        controllerip1_text = doc.createTextNode('10.10.10.2')
+        controllerip1.appendChild(controllerip1_text)
+        storage.appendChild(controllerip1)
+        username = doc.createElement('UserName')
+        username_text = doc.createTextNode('admin')
+        username.appendChild(username_text)
+        storage.appendChild(username)
+        userpassword = doc.createElement('UserPassword')
+        userpassword_text = doc.createTextNode('Admin@storage')
+        userpassword.appendChild(userpassword_text)
+        storage.appendChild(userpassword)
+        url = doc.createElement('RestURL')
+        url_text = doc.createTextNode('http://100.115.10.69:8082/'
+                                      'deviceManager/rest/')
+        url.appendChild(url_text)
+        storage.appendChild(url)
+
+        lun = doc.createElement('LUN')
+        config.appendChild(lun)
+        storagepool = doc.createElement('StoragePool')
+        pool_text = doc.createTextNode('OpenStack_Pool')
+        storagepool.appendChild(pool_text)
+        lun.appendChild(storagepool)
+
+        timeout = doc.createElement('Timeout')
+        timeout_text = doc.createTextNode('43200')
+        timeout.appendChild(timeout_text)
+        lun.appendChild(timeout)
+
+        lun_ready_wait_interval = doc.createElement('LUNReadyWaitInterval')
+        lun_ready_wait_interval_text = doc.createTextNode('2')
+        lun_ready_wait_interval.appendChild(lun_ready_wait_interval_text)
+        lun.appendChild(lun_ready_wait_interval)
+
+        prefetch = doc.createElement('Prefetch')
+        prefetch.setAttribute('Type', '0')
+        prefetch.setAttribute('Value', '0')
+        lun.appendChild(prefetch)
+
+        iscsi = doc.createElement('iSCSI')
+        config.appendChild(iscsi)
+        defaulttargetip = doc.createElement('DefaultTargetIP')
+        defaulttargetip_text = doc.createTextNode('100.115.10.68')
+        defaulttargetip.appendChild(defaulttargetip_text)
+        iscsi.appendChild(defaulttargetip)
+        initiator = doc.createElement('Initiator')
+        initiator.setAttribute('Name', 'iqn.1993-08.debian:01:ec2bff7ac3a3')
+        initiator.setAttribute('TargetIP', '192.168.100.2')
+        iscsi.appendChild(initiator)
+
+        fakefile = open(self.fake_conf_file, 'w')
+        fakefile.write(doc.toprettyxml(indent=''))
+        fakefile.close()
diff --git a/cinder/tests/test_huawei_drivers_compatibility.py b/cinder/tests/test_huawei_drivers_compatibility.py
new file mode 100644 (file)
index 0000000..98d6b30
--- /dev/null
@@ -0,0 +1,64 @@
+#    Copyright 2012 OpenStack Foundation
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+
+from oslo_config import cfg
+from oslo_utils import importutils
+
+from cinder import context
+from cinder import test
+
+
+CONF = cfg.CONF
+HUAWEI_ISCSI_MODULE = ("cinder.volume.drivers.huawei.huawei_18000."
+                       "Huawei18000ISCSIDriver")
+HUAWEI_FC_MODULE = ("cinder.volume.drivers.huawei.huawei_18000."
+                    "Huawei18000FCDriver")
+
+
+class VolumeDriverCompatibility(test.TestCase):
+    """Test backwards compatibility for volume drivers."""
+
+    def fake_update_cluster_status(self):
+        return
+
+    def setUp(self):
+        super(VolumeDriverCompatibility, self).setUp()
+        self.manager = importutils.import_object(CONF.volume_manager)
+        self.context = context.get_admin_context()
+
+    def _load_driver(self, driver):
+        self.manager.__init__(volume_driver=driver)
+
+    def _driver_module_name(self):
+        return "%s.%s" % (self.manager.driver.__class__.__module__,
+                          self.manager.driver.__class__.__name__)
+
+    def test_huawei_driver_iscsi_old(self):
+        self._load_driver(
+            'cinder.volume.drivers.huawei.huawei_hvs.HuaweiHVSISCSIDriver')
+        self.assertEqual(self._driver_module_name(), HUAWEI_ISCSI_MODULE)
+
+    def test_huawei_driver_iscsi_new(self):
+        self._load_driver(HUAWEI_ISCSI_MODULE)
+        self.assertEqual(self._driver_module_name(), HUAWEI_ISCSI_MODULE)
+
+    def test_huawei_driver_fc_old(self):
+        self._load_driver(
+            'cinder.volume.drivers.huawei.huawei_hvs.HuaweiHVSFCDriver')
+        self.assertEqual(self._driver_module_name(), HUAWEI_FC_MODULE)
+
+    def test_huawei_driver_fc_new(self):
+        self._load_driver(HUAWEI_FC_MODULE)
+        self.assertEqual(self._driver_module_name(), HUAWEI_FC_MODULE)
diff --git a/cinder/volume/drivers/huawei/__init__.py b/cinder/volume/drivers/huawei/__init__.py
new file mode 100644 (file)
index 0000000..b5a7c76
--- /dev/null
@@ -0,0 +1,108 @@
+# Copyright (c) 2013 - 2014 Huawei Technologies Co., Ltd.
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+"""
+Provide a unified driver class for users.
+
+The product type and the protocol should be specified in config file before.
+"""
+
+from oslo_config import cfg
+from oslo_log import log as logging
+import six
+
+from cinder import exception
+from cinder.i18n import _, _LI, _LW
+from cinder.volume.drivers.huawei import huawei_18000
+from cinder.volume.drivers.huawei import huawei_utils
+
+
+LOG = logging.getLogger(__name__)
+
+huawei_opt = [
+    cfg.StrOpt('cinder_huawei_conf_file',
+               default='/etc/cinder/cinder_huawei_conf.xml',
+               help='The configuration file for the Cinder Huawei '
+                    'driver')]
+
+CONF = cfg.CONF
+CONF.register_opts(huawei_opt)
+MAPPING = {'HVS': '18000'}
+
+
+class HuaweiVolumeDriver(object):
+    """Define an unified driver for Huawei drivers."""
+
+    def __init__(self, *args, **kwargs):
+        super(HuaweiVolumeDriver, self).__init__()
+        self._product = {'18000': huawei_18000, 'HVS': huawei_18000}
+        self._protocol = {'iSCSI': 'ISCSIDriver', 'FC': 'FCDriver'}
+
+        self.driver = self._instantiate_driver(*args, **kwargs)
+
+    def _instantiate_driver(self, *args, **kwargs):
+        """Instantiate the specified driver."""
+        self.configuration = kwargs.get('configuration', None)
+        if not self.configuration:
+            msg = (_('_instantiate_driver: configuration not found.'))
+            raise exception.InvalidInput(reason=msg)
+
+        self.configuration.append_config_values(huawei_opt)
+        conf_file = self.configuration.cinder_huawei_conf_file
+        (product, protocol) = self._get_conf_info(conf_file)
+
+        LOG.info(_LI(
+            '_instantiate_driver: Loading %(protocol)s driver for '
+            'Huawei OceanStor %(product)s series storage arrays.')
+            % {'protocol': protocol,
+               'product': product})
+        # Map HVS to 18000
+        if product in MAPPING:
+            LOG.warn(_LW("Product name %s is deprecated, update your "
+                         "configuration to the new product name."), product)
+            product = MAPPING[product]
+
+        driver_module = self._product[product]
+        driver_class = 'Huawei' + product + self._protocol[protocol]
+
+        driver_class = getattr(driver_module, driver_class)
+        return driver_class(*args, **kwargs)
+
+    def _get_conf_info(self, filename):
+        """Get product type and connection protocol from config file."""
+        root = huawei_utils.parse_xml_file(filename)
+        product = root.findtext('Storage/Product').strip()
+        protocol = root.findtext('Storage/Protocol').strip()
+        if (product in self._product.keys() and
+                protocol in self._protocol.keys()):
+            return (product, protocol)
+        else:
+            msg = (_('"Product" or "Protocol" is illegal. "Product" should be '
+                     'set to 18000. "Protocol" should be set to either iSCSI '
+                     'or FC. Product: %(product)s Protocol: %(protocol)s')
+                   % {'product': six.text_type(product),
+                      'protocol': six.text_type(protocol)})
+            raise exception.InvalidInput(reason=msg)
+
+    def __setattr__(self, name, value):
+        """Set the attribute."""
+        if getattr(self, 'driver', None):
+            self.driver.__setattr__(name, value)
+            return
+        object.__setattr__(self, name, value)
+
+    def __getattr__(self, name):
+        """"Get the attribute."""
+        drver = object.__getattribute__(self, 'driver')
+        return getattr(drver, name)
diff --git a/cinder/volume/drivers/huawei/huawei_18000.py b/cinder/volume/drivers/huawei/huawei_18000.py
new file mode 100644 (file)
index 0000000..c306fec
--- /dev/null
@@ -0,0 +1,199 @@
+# Copyright (c) 2013 - 2014 Huawei Technologies Co., Ltd.
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+"""
+Volume Drivers for Huawei OceanStor 18000 storage arrays.
+"""
+
+from cinder.volume import driver
+from cinder.volume.drivers.huawei import rest_common
+from cinder.zonemanager import utils as fczm_utils
+
+
+class Huawei18000ISCSIDriver(driver.ISCSIDriver):
+    """ISCSI driver for Huawei OceanStor 18000 storage arrays.
+
+    Version history:
+        1.0.0 - Initial driver
+        1.1.0 - Provide Huawei OceanStor 18000 storage volume driver.
+    """
+
+    VERSION = "1.1.0"
+
+    def __init__(self, *args, **kwargs):
+        super(Huawei18000ISCSIDriver, self).__init__(*args, **kwargs)
+
+    def do_setup(self, context):
+        """Instantiate common class and log in storage system."""
+        self.common = rest_common.RestCommon(configuration=self.configuration)
+        return self.common.login()
+
+    def check_for_setup_error(self):
+        """Check configuration file."""
+        return self.common._check_conf_file()
+
+    def create_volume(self, volume):
+        """Create a volume."""
+        lun_info = self.common.create_volume(volume)
+        return {'provider_location': lun_info['ID'],
+                'lun_info': lun_info}
+
+    def create_volume_from_snapshot(self, volume, snapshot):
+        """Create a volume from a snapshot."""
+        lun_info = self.common.create_volume_from_snapshot(volume, snapshot)
+        return {'provider_location': lun_info['ID'],
+                'lun_info': lun_info}
+
+    def create_cloned_volume(self, volume, src_vref):
+        """Create a clone of the specified volume."""
+        lun_info = self.common.create_cloned_volume(volume, src_vref)
+        return {'provider_location': lun_info['ID'],
+                'lun_info': lun_info}
+
+    def extend_volume(self, volume, new_size):
+        """Extend a volume."""
+        return self.common.extend_volume(volume, new_size)
+
+    def delete_volume(self, volume):
+        """Delete a volume."""
+        return self.common.delete_volume(volume)
+
+    def create_snapshot(self, snapshot):
+        """Create a snapshot."""
+        lun_info = self.common.create_snapshot(snapshot)
+        return {'provider_location': lun_info['ID'],
+                'lun_info': lun_info}
+
+    def delete_snapshot(self, snapshot):
+        """Delete a snapshot."""
+        return self.common.delete_snapshot(snapshot)
+
+    def get_volume_stats(self, refresh=False):
+        """Get volume stats."""
+        data = self.common.update_volume_stats()
+        backend_name = self.configuration.safe_get('volume_backend_name')
+        data['volume_backend_name'] = backend_name or self.__class__.__name__
+        data['storage_protocol'] = 'iSCSI'
+        data['driver_version'] = self.VERSION
+        return data
+
+    def initialize_connection(self, volume, connector):
+        """Map a volume to a host."""
+        return self.common.initialize_connection_iscsi(volume, connector)
+
+    def terminate_connection(self, volume, connector, **kwargs):
+        """Terminate the map."""
+        self.common.terminate_connection_iscsi(volume, connector)
+
+    def create_export(self, context, volume):
+        """Export the volume."""
+        pass
+
+    def ensure_export(self, context, volume):
+        """Synchronously recreate an export for a volume."""
+        pass
+
+    def remove_export(self, context, volume):
+        """Remove an export for a volume."""
+        pass
+
+
+class Huawei18000FCDriver(driver.FibreChannelDriver):
+    """FC driver for Huawei OceanStor 18000 storage arrays.
+
+    Version history:
+        1.0.0 - Initial driver
+        1.1.0 - Provide Huawei OceanStor 18000 storage volume driver.
+    """
+
+    VERSION = "1.1.0"
+
+    def __init__(self, *args, **kwargs):
+        super(Huawei18000FCDriver, self).__init__(*args, **kwargs)
+
+    def do_setup(self, context):
+        """Instantiate common class and log in storage system."""
+        self.common = rest_common.RestCommon(configuration=self.configuration)
+        return self.common.login()
+
+    def check_for_setup_error(self):
+        """Check configuration file."""
+        return self.common._check_conf_file()
+
+    def create_volume(self, volume):
+        """Create a volume."""
+        lun_info = self.common.create_volume(volume)
+        return {'provider_location': lun_info['ID'],
+                'lun_info': lun_info}
+
+    def create_volume_from_snapshot(self, volume, snapshot):
+        """Create a volume from a snapshot."""
+        lun_info = self.common.create_volume_from_snapshot(volume, snapshot)
+        return {'provider_location': lun_info['ID'],
+                'lun_info': lun_info}
+
+    def create_cloned_volume(self, volume, src_vref):
+        """Create a clone of the specified volume."""
+        lun_info = self.common.create_cloned_volume(volume, src_vref)
+        return {'provider_location': lun_info['ID'],
+                'lun_info': lun_info}
+
+    def extend_volume(self, volume, new_size):
+        """Extend a volume."""
+        return self.common.extend_volume(volume, new_size)
+
+    def delete_volume(self, volume):
+        """Delete a volume."""
+        return self.common.delete_volume(volume)
+
+    def create_snapshot(self, snapshot):
+        """Create a snapshot."""
+        lun_info = self.common.create_snapshot(snapshot)
+        return {'provider_location': lun_info['ID'],
+                'lun_info': lun_info}
+
+    def delete_snapshot(self, snapshot):
+        """Delete a snapshot."""
+        return self.common.delete_snapshot(snapshot)
+
+    def get_volume_stats(self, refresh=False):
+        """Get volume stats."""
+        data = self.common.update_volume_stats()
+        backend_name = self.configuration.safe_get('volume_backend_name')
+        data['volume_backend_name'] = backend_name or self.__class__.__name__
+        data['storage_protocol'] = 'FC'
+        data['driver_version'] = self.VERSION
+        return data
+
+    @fczm_utils.AddFCZone
+    def initialize_connection(self, volume, connector):
+        """Map a volume to a host."""
+        return self.common.initialize_connection_fc(volume, connector)
+
+    @fczm_utils.RemoveFCZone
+    def terminate_connection(self, volume, connector, **kwargs):
+        """Terminate the map."""
+        return self.common.terminate_connection_fc(volume, connector)
+
+    def create_export(self, context, volume):
+        """Export the volume."""
+        pass
+
+    def ensure_export(self, context, volume):
+        """Synchronously recreate an export for a volume."""
+        pass
+
+    def remove_export(self, context, volume):
+        """Remove an export for a volume."""
+        pass
diff --git a/cinder/volume/drivers/huawei/huawei_utils.py b/cinder/volume/drivers/huawei/huawei_utils.py
new file mode 100644 (file)
index 0000000..bec1020
--- /dev/null
@@ -0,0 +1,133 @@
+# Copyright (c) 2013 Huawei Technologies Co., Ltd.
+# Copyright (c) 2012 OpenStack LLC.
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+from xml.etree import ElementTree as ET
+
+from oslo_log import log as logging
+
+from cinder.i18n import _LE
+
+LOG = logging.getLogger(__name__)
+
+os_type = {'Linux': '0',
+           'Windows': '1',
+           'Solaris': '2',
+           'HP-UX': '3',
+           'AIX': '4',
+           'XenServer': '5',
+           'Mac OS X': '6',
+           'VMware ESX': '7'}
+
+
+def parse_xml_file(filepath):
+    """Get root of xml file."""
+    try:
+        tree = ET.parse(filepath)
+        root = tree.getroot()
+        return root
+    except IOError as err:
+        LOG.error(_LE('parse_xml_file: %s') % err)
+        raise err
+
+
+def get_xml_item(xml_root, item):
+    """Get the given item details.
+
+    :param xml_root: The root of xml tree
+    :param item: The tag need to get
+    :return: A dict contains all the config info of the given item.
+    """
+    items_list = []
+    items = xml_root.findall(item)
+    for item in items:
+        tmp_dict = {'text': None, 'attrib': {}}
+        if item.text:
+            tmp_dict['text'] = item.text.strip()
+        for key, val in item.attrib.items():
+            if val:
+                item.attrib[key] = val.strip()
+        tmp_dict['attrib'] = item.attrib
+        items_list.append(tmp_dict)
+    return items_list
+
+
+def is_xml_item_exist(xml_root, item, attrib_key=None):
+    """Check if the given item exits in xml config file.
+
+    :param xml_root: The root of xml tree
+    :param item: The xml tag to check
+    :param attrib_key: The xml attrib to check
+    :return: True of False
+    """
+    items_list = get_xml_item(xml_root, item)
+    if attrib_key:
+        for tmp_dict in items_list:
+            if tmp_dict['attrib'].get(attrib_key, None):
+                return True
+    else:
+        if items_list and items_list[0]['text']:
+            return True
+    return False
+
+
+def is_xml_item_valid(xml_root, item, valid_list, attrib_key=None):
+    """Check if the given item is valid in xml config file.
+
+    :param xml_root: The root of xml tree
+    :param item: The xml tag to check
+    :param valid_list: The valid item value
+    :param attrib_key: The xml attrib to check
+    :return: True of False
+    """
+    items_list = get_xml_item(xml_root, item)
+    if attrib_key:
+        for tmp_dict in items_list:
+            value = tmp_dict['attrib'].get(attrib_key, None)
+            if value not in valid_list:
+                return False
+    else:
+        value = items_list[0]['text']
+        if value not in valid_list:
+            return False
+
+    return True
+
+
+def get_conf_host_os_type(host_ip, config):
+    """Get host OS type from xml config file.
+
+    :param host_ip: The IP of Nova host
+    :param config: xml config file
+    :return: host OS type
+    """
+    os_conf = {}
+    root = parse_xml_file(config)
+    hosts_list = get_xml_item(root, 'Host')
+    for host in hosts_list:
+        os = host['attrib']['OSType'].strip()
+        ips = [ip.strip() for ip in host['attrib']['HostIP'].split(',')]
+        os_conf[os] = ips
+    host_os = None
+    for k, v in os_conf.items():
+        if host_ip in v:
+            host_os = os_type.get(k, None)
+    if not host_os:
+        host_os = os_type['Linux']  # default os type
+
+    LOG.debug('_get_host_os_type: Host %(ip)s OS type is %(os)s.'
+              % {'ip': host_ip, 'os': host_os})
+
+    return host_os
diff --git a/cinder/volume/drivers/huawei/rest_common.py b/cinder/volume/drivers/huawei/rest_common.py
new file mode 100644 (file)
index 0000000..1530b9f
--- /dev/null
@@ -0,0 +1,1758 @@
+# Copyright (c) 2013 - 2014 Huawei Technologies Co., Ltd.
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+"""Common class for Huawei 18000 storage drivers."""
+
+import base64
+import cookielib
+import json
+import time
+import urllib2
+import uuid
+from xml.etree import ElementTree as ET
+
+from oslo_log import log as logging
+from oslo_utils import excutils
+from oslo_utils import units
+import six
+
+from cinder import context
+from cinder import exception
+from cinder.i18n import _, _LE, _LI, _LW
+from cinder.openstack.common import loopingcall
+from cinder import utils
+from cinder.volume import qos_specs
+from cinder.volume import volume_types
+
+LOG = logging.getLogger(__name__)
+
+DEFAULT_WAIT_TIMEOUT = 3600 * 24 * 30
+DEFAULT_WAIT_INTERVAL = 5
+
+HOSTGROUP_PREFIX = 'OpenStack_HostGroup_'
+LUNGROUP_PREFIX = 'OpenStack_LunGroup_'
+MAPPING_VIEW_PREFIX = 'OpenStack_Mapping_View_'
+QOS_NAME_PREFIX = 'OpenStack_'
+huawei_valid_keys = ['maxIOPS', 'minIOPS', 'minBandWidth',
+                     'maxBandWidth', 'latency', 'IOType']
+
+
+class RestCommon(object):
+    """Common class for Huawei OceanStor 18000 storage system."""
+
+    def __init__(self, configuration):
+        self.configuration = configuration
+        self.cookie = cookielib.CookieJar()
+        self.url = None
+        self.productversion = None
+        self.headers = {"Connection": "keep-alive",
+                        "Content-Type": "application/json"}
+
+    def call(self, url=False, data=None, method=None):
+        """Send requests to 18000 server.
+        Send HTTPS call, get response in JSON.
+        Convert response into Python Object and return it.
+        """
+
+        opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(self.cookie))
+        urllib2.install_opener(opener)
+
+        try:
+            urllib2.socket.setdefaulttimeout(720)
+            req = urllib2.Request(url, data, self.headers)
+            if method:
+                req.get_method = lambda: method
+            res = urllib2.urlopen(req).read().decode("utf-8")
+
+            if "xx/sessions" not in url:
+                LOG.info(_LI('\n\n\n\nRequest URL: %(url)s\n\n'
+                             'Call Method: %(method)s\n\n'
+                             'Request Data: %(data)s\n\n'
+                             'Response Data:%(res)s\n\n'), {'url': url,
+                                                            'method': method,
+                                                            'data': data,
+                                                            'res': res})
+
+        except Exception as err:
+            LOG.error(_LE('\nBad response from server: %s.') % err)
+            raise
+
+        try:
+            res_json = json.loads(res)
+        except Exception as err:
+            err_msg = (_LE('JSON transfer error: %s.') % err)
+            LOG.error(err_msg)
+            raise
+
+        return res_json
+
+    def login(self):
+        """Log in 18000 array."""
+
+        login_info = self._get_login_info()
+        url = login_info['RestURL'] + "xx/sessions"
+        data = json.dumps({"username": login_info['UserName'],
+                           "password": login_info['UserPassword'],
+                           "scope": "0"})
+        result = self.call(url, data)
+        if (result['error']['code'] != 0) or ("data" not in result):
+            msg = (_("Login error, reason is: %s.") % result)
+            LOG.error(msg)
+            raise exception.CinderException(msg)
+
+        deviceid = result['data']['deviceid']
+        self.url = login_info['RestURL'] + deviceid
+        self.headers['iBaseToken'] = result['data']['iBaseToken']
+        return deviceid
+
+    def _init_lun_parameters(self, name, parameters):
+        """Init basic LUN parameters."""
+        lunparam = {"TYPE": "11",
+                    "NAME": name,
+                    "PARENTTYPE": "216",
+                    "PARENTID": parameters['pool_id'],
+                    "DESCRIPTION": parameters['volume_description'],
+                    "ALLOCTYPE": parameters['LUNType'],
+                    "CAPACITY": parameters['volume_size'],
+                    "WRITEPOLICY": parameters['WriteType'],
+                    "MIRRORPOLICY": parameters['MirrorSwitch'],
+                    "PREFETCHPOLICY": parameters['PrefetchType'],
+                    "PREFETCHVALUE": parameters['PrefetchValue']}
+
+        return lunparam
+
+    def _assert_rest_result(self, result, err_str):
+        error_code = result['error']['code']
+        if error_code != 0:
+            msg = (_('%(err)s\nresult: %(res)s.') % {'err': err_str,
+                                                     'res': result})
+            LOG.error(msg)
+            raise exception.CinderException(msg)
+
+    def _assert_data_in_result(self, result, msg):
+        if "data" not in result:
+            err_msg = (_('%s "data" was not in result.') % msg)
+            LOG.error(err_msg)
+            raise exception.CinderException(err_msg)
+
+    def _create_volume(self, lun_param):
+        url = self.url + "/lun"
+        data = json.dumps(lun_param)
+        result = self.call(url, data)
+
+        msg = 'Create volume error.'
+        self._assert_rest_result(result, msg)
+        self._assert_data_in_result(result, msg)
+
+        return result['data']
+
+    @utils.synchronized('huawei', external=True)
+    def create_volume(self, volume):
+
+        poolinfo = self._find_pool_info()
+        volume_name = self._encode_name(volume['id'])
+        volume_description = volume['name']
+        volume_size = self._get_volume_size(volume)
+
+        LOG.info(_LI(
+            'Create Volume: %(volume)s Size: %(size)s.')
+            % {'volume': volume_name,
+               'size': volume_size})
+
+        params = self._get_lun_conf_params()
+        params['pool_id'] = poolinfo['ID']
+        params['volume_size'] = volume_size
+        params['volume_description'] = volume_description
+
+        # Prepare lun parameters.
+        lun_param = self._init_lun_parameters(volume_name, params)
+
+        # Create LUN on the array.
+        lun_info = self._create_volume(lun_param)
+        lunid = lun_info['ID']
+
+        type_id = volume.get('volume_type_id', None)
+        policy_id = None
+
+        if type_id is not None:
+            volume_type = self._get_volume_type(type_id)
+            qos = self._get_qos_by_volume_type(volume_type)
+
+            if qos is None:
+                msg = (_('Find QoS configuration error!'))
+                LOG.error(msg)
+                raise exception.CinderException(msg)
+
+            try:
+                # Check QoS priority. if high, change lun priority to high.
+                if self._check_qos_high_priority(qos) is True:
+                    self._change_lun_priority(lunid)
+
+                # Create QoS policy and active.
+                policy_id = self._create_qos_policy(qos, lunid)
+                self._active_deactive_qos(policy_id, True)
+            except Exception:
+                with excutils.save_and_reraise_exception():
+                    if policy_id is not None:
+                        self._delete_qos_policy(policy_id)
+
+                    self._delete_lun(lunid)
+
+        return lun_info
+
+    def _get_volume_size(self, volume):
+        """Calculate the volume size.
+
+        We should divide the given volume size by 512 for the 18000 system
+        calculates volume size with sectors, which is 512 bytes.
+        """
+
+        volume_size = units.Gi / 512  # 1G
+        if int(volume['size']) != 0:
+            volume_size = int(volume['size']) * units.Gi / 512
+
+        return volume_size
+
+    @utils.synchronized('huawei', external=True)
+    def delete_volume(self, volume):
+        """Delete a volume.
+
+        Three steps: first, remove associate from lungroup.
+        Second, remove associate from QoS policy. Third, remove the lun.
+        """
+
+        name = self._encode_name(volume['id'])
+        lun_id = volume.get('provider_location', None)
+        LOG.info(_LI('Delete Volume: %(name)s  array lun id: %(lun_id)s.')
+                 % {'name': name, 'lun_id': lun_id})
+        if lun_id:
+            if self._check_lun_exist(lun_id) is True:
+                # Get qos_id by lun_id.
+                qos_id = self._get_qosid_by_lunid(lun_id)
+
+                if qos_id != "":
+                    qos_info = self._get_qos_info(qos_id)
+                    qos_status = qos_info['RUNNINGSTATUS']
+                    # 2: Active status.
+                    if qos_status == '2':
+                        self._active_deactive_qos(qos_id, False)
+
+                    self._delete_qos_policy(qos_id)
+                self._delete_lun(lun_id)
+        else:
+            LOG.warning(_LW("Can't find lun or lungroup on the array."))
+
+    def _check_lun_exist(self, lun_id):
+        url = self.url + "/lun/" + lun_id
+        data = json.dumps({"TYPE": "11",
+                           "ID": lun_id})
+        result = self.call(url, data, "GET")
+        error_code = result['error']['code']
+        if error_code != 0:
+            return False
+
+        return True
+
+    def _delete_lun(self, lun_id):
+        url = self.url + "/lun/" + lun_id
+        data = json.dumps({"TYPE": "11",
+                           "ID": lun_id})
+        result = self.call(url, data, "DELETE")
+        self._assert_rest_result(result, 'Delete lun error.')
+
+    def _read_xml(self):
+        """Open xml file and parse the content."""
+        filename = self.configuration.cinder_huawei_conf_file
+        try:
+            tree = ET.parse(filename)
+            root = tree.getroot()
+        except Exception as err:
+            LOG.error(_LE('_read_xml: %s') % err)
+            raise
+        return root
+
+    def _encode_name(self, name):
+        uuid_str = name.replace("-", "")
+        vol_uuid = uuid.UUID('urn:uuid:%s' % uuid_str)
+        vol_encoded = base64.urlsafe_b64encode(vol_uuid.bytes)
+        newuuid = vol_encoded.replace("=", "")
+        return newuuid
+
+    def _find_pool_info(self):
+        root = self._read_xml()
+        pool_name = root.findtext('LUN/StoragePool')
+        if not pool_name:
+            err_msg = (_("Invalid resource pool: %s.") % pool_name)
+            LOG.error(err_msg)
+            raise exception.InvalidInput(err_msg)
+
+        url = self.url + "/storagepool"
+        result = self.call(url, None)
+        self._assert_rest_result(result, 'Query resource pool error.')
+
+        poolinfo = {}
+        if "data" in result:
+            for item in result['data']:
+                if pool_name.strip() == item['NAME']:
+                    poolinfo['ID'] = item['ID']
+                    poolinfo['CAPACITY'] = item['USERFREECAPACITY']
+                    poolinfo['TOTALCAPACITY'] = item['USERTOTALCAPACITY']
+                    break
+
+        if not poolinfo:
+            msg = (_('Get pool info error, pool name is: %s.') % pool_name)
+            LOG.error(msg)
+            raise exception.CinderException(msg)
+
+        return poolinfo
+
+    def _get_volume_by_name(self, name):
+        url = self.url + "/lun?range=[0-65535]"
+        result = self.call(url, None, "GET")
+        self._assert_rest_result(result, 'Get volume by name error!')
+
+        volume_id = None
+        if "data" in result:
+            for item in result['data']:
+                if name == item['NAME']:
+                    volume_id = item['ID']
+                    break
+        return volume_id
+
+    def _active_snapshot(self, snapshot_id):
+        activeurl = self.url + "/snapshot/activate"
+        data = json.dumps({"SNAPSHOTLIST": [snapshot_id]})
+        result = self.call(activeurl, data)
+        self._assert_rest_result(result, 'Active snapshot error.')
+
+    def _create_snapshot(self, snapshot):
+        snapshot_name = self._encode_name(snapshot['id'])
+        snapshot_description = snapshot['id']
+        volume_name = self._encode_name(snapshot['volume_id'])
+
+        LOG.info(_LI(
+            '_create_snapshot:snapshot name: %(snapshot)s, '
+            'volume name: %(volume)s.')
+            % {'snapshot': snapshot_name,
+               'volume': volume_name})
+
+        lun_id = self._get_volume_by_name(volume_name)
+        if lun_id is None:
+            msg = (_("Can't find lun info on the array, "
+                     "lun name is: %(name)s") % {'name': volume_name})
+            LOG.error(msg)
+            raise exception.CinderException(msg)
+
+        url = self.url + "/snapshot"
+        data = json.dumps({"TYPE": "27",
+                           "NAME": snapshot_name,
+                           "PARENTTYPE": "11",
+                           "DESCRIPTION": snapshot_description,
+                           "PARENTID": lun_id})
+        result = self.call(url, data)
+
+        msg = 'Create snapshot error.'
+        self._assert_rest_result(result, msg)
+        self._assert_data_in_result(result, msg)
+
+        return result['data']
+
+    @utils.synchronized('huawei', external=True)
+    def create_snapshot(self, snapshot):
+        snapshot_info = self._create_snapshot(snapshot)
+        snapshot_id = snapshot_info['ID']
+        self._active_snapshot(snapshot_id)
+
+        return snapshot_info
+
+    def _check_snapshot_exist(self, snapshot_id):
+        url = self.url + "/snapshot/" + snapshot_id
+        data = json.dumps({"TYPE": "27",
+                           "ID": snapshot_id})
+        result = self.call(url, data, "GET")
+        error_code = result['error']['code']
+        if error_code != 0:
+            return False
+
+        return True
+
+    def _stop_snapshot(self, snapshot_id):
+        url = self.url + "/snapshot/stop"
+        stopdata = json.dumps({"ID": snapshot_id})
+        result = self.call(url, stopdata, "PUT")
+        self._assert_rest_result(result, 'Stop snapshot error.')
+
+    def _delete_snapshot(self, snapshotid):
+        url = self.url + "/snapshot/%s" % snapshotid
+        data = json.dumps({"TYPE": "27", "ID": snapshotid})
+        result = self.call(url, data, "DELETE")
+        self._assert_rest_result(result, 'Delete snapshot error.')
+
+    @utils.synchronized('huawei', external=True)
+    def delete_snapshot(self, snapshot):
+        snapshot_name = self._encode_name(snapshot['id'])
+        volume_name = self._encode_name(snapshot['volume_id'])
+
+        LOG.info(_LI(
+            'stop_snapshot:snapshot name: %(snapshot)s, '
+            'volume name: %(volume)s.')
+            % {'snapshot': snapshot_name,
+               'volume': volume_name})
+
+        snapshot_id = snapshot.get('provider_location', None)
+        if snapshot_id is None:
+            snapshot_id = self._get_snapshotid_by_name(snapshot_name)
+
+        if snapshot_id is not None:
+            if self._check_snapshot_exist(snapshot_id) is True:
+                self._stop_snapshot(snapshot_id)
+                self._delete_snapshot(snapshot_id)
+            else:
+                LOG.warning(_LW("Can't find snapshot on the array."))
+        else:
+            LOG.warning(_LW("Can't find snapshot on the array."))
+
+    def _get_snapshotid_by_name(self, name):
+        url = self.url + "/snapshot?range=[0-65535]"
+        data = json.dumps({"TYPE": "27"})
+        result = self.call(url, data, "GET")
+        self._assert_rest_result(result, 'Get snapshot id error.')
+
+        snapshot_id = None
+        if "data" in result:
+            for item in result['data']:
+                if name == item['NAME']:
+                    snapshot_id = item['ID']
+                    break
+
+        return snapshot_id
+
+    def _copy_volume(self, volume, copy_name, src_lun, tgt_lun):
+
+        luncopy_id = self._create_luncopy(copy_name,
+                                          src_lun, tgt_lun)
+        event_type = 'LUNcopyWaitInterval'
+        wait_interval = self._get_wait_interval(event_type)
+        wait_interval = int(wait_interval)
+        try:
+            self._start_luncopy(luncopy_id)
+
+            def _luncopy_complete():
+                luncopy_info = self._get_luncopy_info(luncopy_id)
+                if luncopy_info['status'] == '40':
+                    # luncopy_info['status'] means for the running status of
+                    # the luncopy. If luncopy_info['status'] is equal to '40',
+                    # this luncopy is completely ready.
+                    return True
+                elif luncopy_info['state'] != '1':
+                    # luncopy_info['state'] means for the healthy status of the
+                    # luncopy. If luncopy_info['state'] is not equal to '1',
+                    # this means that an error occurred during the LUNcopy
+                    # operation and we should abort it.
+                    err_msg = (_(
+                        'An error occurred during the LUNcopy operation. '
+                        'LUNcopy name: %(luncopyname)s. '
+                        'LUNcopy status: %(luncopystatus)s. '
+                        'LUNcopy state: %(luncopystate)s.')
+                        % {'luncopyname': luncopy_id,
+                           'luncopystatus': luncopy_info['status'],
+                           'luncopystate': luncopy_info['state']})
+                    LOG.error(err_msg)
+                    raise exception.VolumeBackendAPIException(data=err_msg)
+            self._wait_for_condition(_luncopy_complete, wait_interval)
+
+        except Exception:
+            with excutils.save_and_reraise_exception():
+                self._delete_luncopy(luncopy_id)
+                self.delete_volume(volume)
+
+        self._delete_luncopy(luncopy_id)
+
+    def _get_wait_interval(self, event_type):
+        """Get wait interval from huawei conf file."""
+        root = self._read_xml()
+        wait_interval = root.findtext('LUN/%s' % event_type)
+        if wait_interval:
+            return wait_interval
+        else:
+            LOG.info(_LI(
+                "Wait interval for %(event_type)s is not configured in huawei "
+                "conf file. Use default: %(default_wait_interval)d."),
+                {"event_type": event_type,
+                 "default_wait_interval": DEFAULT_WAIT_INTERVAL})
+            return DEFAULT_WAIT_INTERVAL
+
+    def _get_default_timeout(self):
+        """Get timeout from huawei conf file."""
+        root = self._read_xml()
+        timeout = root.findtext('LUN/Timeout')
+        if timeout is None:
+            timeout = DEFAULT_WAIT_TIMEOUT
+            LOG.info(_LI(
+                "Timeout is not configured in huawei conf file. "
+                "Use default: %(default_timeout)d."),
+                {"default_timeout": timeout})
+
+        return timeout
+
+    def _wait_for_condition(self, func, interval, timeout=None):
+        start_time = time.time()
+        if timeout is None:
+            timeout = self._get_default_timeout()
+
+        def _inner():
+            try:
+                res = func()
+            except Exception as ex:
+                res = False
+                LOG.debug('_wait_for_condition: %(func_name)s '
+                          'failed for %(exception)s.',
+                          {'func_name': func.__name__,
+                           'exception': ex})
+            if res:
+                raise loopingcall.LoopingCallDone()
+
+            if int(time.time()) - start_time > timeout:
+                msg = (_('_wait_for_condition: %s timed out.')
+                       % func.__name__)
+                LOG.error(msg)
+                raise exception.VolumeBackendAPIException(data=msg)
+
+        timer = loopingcall.FixedIntervalLoopingCall(_inner)
+        timer.start(interval=interval).wait()
+
+    def create_volume_from_snapshot(self, volume, snapshot):
+        """Create a volume from a snapshot.
+
+        We use LUNcopy to copy a new volume from snapshot.
+        The time needed increases as volume size does.
+        """
+
+        snapshot_name = self._encode_name(snapshot['id'])
+
+        snapshot_id = snapshot.get('provider_location', None)
+        if snapshot_id is None:
+            snapshot_id = self._get_snapshotid_by_name(snapshot_name)
+            if snapshot_id is None:
+                err_msg = (_(
+                    'create_volume_from_snapshot: Snapshot %(name)s '
+                    'does not exist.')
+                    % {'name': snapshot_name})
+                LOG.error(err_msg)
+                raise exception.VolumeBackendAPIException(data=err_msg)
+
+        lun_info = self.create_volume(volume)
+        tgt_lun_id = lun_info['ID']
+        luncopy_name = self._encode_name(volume['id'])
+
+        LOG.info(_LI(
+            'create_volume_from_snapshot: src_lun_id: %(src_lun_id)s, '
+            'tgt_lun_id: %(tgt_lun_id)s, copy_name: %(copy_name)s')
+            % {'src_lun_id': snapshot_id,
+               'tgt_lun_id': tgt_lun_id,
+               'copy_name': luncopy_name})
+
+        event_type = 'LUNReadyWaitInterval'
+        wait_interval = self._get_wait_interval(event_type)
+
+        def _volume_ready():
+            url = self.url + "/lun/" + tgt_lun_id
+            result = self.call(url, None, "GET")
+            self._assert_rest_result(result, 'Get volume by id failed!')
+
+            if "data" in result:
+                if (result['data']['HEALTHSTATUS'] == "1" and
+                   result['data']['RUNNINGSTATUS'] == "27"):
+                    return True
+            return False
+
+        self._wait_for_condition(_volume_ready,
+                                 wait_interval,
+                                 wait_interval * 3)
+        self._copy_volume(volume, luncopy_name, snapshot_id, tgt_lun_id)
+
+        return lun_info
+
+    def create_cloned_volume(self, volume, src_vref):
+        """Clone a new volume from an existing volume."""
+
+        # Form the snapshot structure.
+        snapshot = {'id': uuid.uuid4().__str__(), 'volume_id': src_vref['id']}
+
+        # Create snapshot.
+        self.create_snapshot(snapshot)
+
+        try:
+            # Create volume from snapshot.
+            lun_info = self.create_volume_from_snapshot(volume, snapshot)
+        finally:
+            try:
+                # Delete snapshot.
+                self.delete_snapshot(snapshot)
+            except exception.CinderException:
+                LOG.warning(_LW(
+                    'Failure deleting the snapshot %(snapshot_id)s '
+                    'of volume %(volume_id)s.')
+                    % {'snapshot_id': snapshot['id'],
+                       'volume_id': src_vref['id']})
+
+        return lun_info
+
+    def _create_luncopy(self, luncopyname, srclunid, tgtlunid):
+        """Create a luncopy."""
+        url = self.url + "/luncopy"
+        data = json.dumps({"TYPE": 219,
+                           "NAME": luncopyname,
+                           "DESCRIPTION": luncopyname,
+                           "COPYSPEED": 2,
+                           "LUNCOPYTYPE": "1",
+                           "SOURCELUN": ("INVALID;%s;INVALID;INVALID;INVALID"
+                                         % srclunid),
+                           "TARGETLUN": ("INVALID;%s;INVALID;INVALID;INVALID"
+                                         % tgtlunid)})
+        result = self.call(url, data)
+
+        msg = 'Create lun copy error.'
+        self._assert_rest_result(result, msg)
+        self._assert_data_in_result(result, msg)
+
+        return result['data']['ID']
+
+    def _add_host_into_hostgroup(self, host_id):
+        """Associate host to hostgroup.
+
+        If hostgroup doesn't exist, create one.
+
+        """
+        host_group_name = HOSTGROUP_PREFIX + host_id
+        hostgroup_id = self._find_hostgroup(host_group_name)
+
+        LOG.info(_LI(
+            '_add_host_into_hostgroup, hostgroup name: %(name)s, '
+            'hostgroup id: %(id)s.')
+            % {'name': host_group_name,
+               'id': hostgroup_id})
+
+        if hostgroup_id is None:
+            hostgroup_id = self._create_hostgroup(host_group_name)
+
+        is_associated = self._is_host_associate_to_hostgroup(hostgroup_id,
+                                                             host_id)
+        if is_associated is False:
+            self._associate_host_to_hostgroup(hostgroup_id, host_id)
+
+        return hostgroup_id
+
+    def _mapping_hostgroup_and_lungroup(self, volume_name,
+                                        hostgroup_id, host_id):
+        """Add hostgroup and lungroup to view."""
+        lungroup_name = LUNGROUP_PREFIX + host_id
+        mapping_view_name = MAPPING_VIEW_PREFIX + host_id
+        lungroup_id = self._find_lungroup(lungroup_name)
+        lun_id = self._get_volume_by_name(volume_name)
+        view_id = self._find_mapping_view(mapping_view_name)
+
+        LOG.info(_LI(
+            '_mapping_hostgroup_and_lungroup, lun_group: %(lun_group)s, '
+            'view_id: %(view_id)s, lun_id: %(lun_id)s.')
+            % {'lun_group': six.text_type(lungroup_id),
+               'view_id': six.text_type(view_id),
+               'lun_id': six.text_type(lun_id)})
+
+        try:
+            # Create lungroup and add LUN into to lungroup.
+            if lungroup_id is None:
+                lungroup_id = self._create_lungroup(lungroup_name)
+            is_associated = self._is_lun_associated_to_lungroup(lungroup_id,
+                                                                lun_id)
+            if not is_associated:
+                self._associate_lun_to_lungroup(lungroup_id, lun_id)
+
+            if view_id is None:
+                view_id = self._add_mapping_view(mapping_view_name)
+                self._associate_hostgroup_to_view(view_id, hostgroup_id)
+                self._associate_lungroup_to_view(view_id, lungroup_id)
+            else:
+                if not self._hostgroup_associated(view_id, hostgroup_id):
+                    self._associate_hostgroup_to_view(view_id, hostgroup_id)
+                if not self._lungroup_associated(view_id, lungroup_id):
+                    self._associate_lungroup_to_view(view_id, lungroup_id)
+
+        except Exception:
+            with excutils.save_and_reraise_exception():
+                err_msg = (_LE(
+                    'Error occurred when adding hostgroup and lungroup to '
+                    'view. Remove lun from lungroup now.'))
+                LOG.error(err_msg)
+                self._remove_lun_from_lungroup(lungroup_id, lun_id)
+
+        return lun_id
+
+    def _ensure_initiator_added(self, initiator_name, hostid):
+        added = self._initiator_is_added_to_array(initiator_name)
+        if not added:
+            self._add_initiator_to_array(initiator_name)
+            if self._is_initiator_associated_to_host(initiator_name) is False:
+                self._associate_initiator_to_host(initiator_name, hostid)
+        else:
+            if self._is_initiator_associated_to_host(initiator_name) is False:
+                self._associate_initiator_to_host(initiator_name, hostid)
+
+    @utils.synchronized('huawei', external=True)
+    def initialize_connection_iscsi(self, volume, connector):
+        """Map a volume to a host and return target iSCSI information."""
+
+        LOG.info(_LI('Enter initialize_connection_iscsi.'))
+        initiator_name = connector['initiator']
+        volume_name = self._encode_name(volume['id'])
+
+        LOG.info(_LI(
+            'initiator name: %(initiator_name)s, '
+            'volume name: %(volume)s.')
+            % {'initiator_name': initiator_name,
+               'volume': volume_name})
+
+        (iscsi_iqn, target_ip) = self._get_iscsi_params(connector)
+        LOG.info(_LI(
+            'initialize_connection_iscsi,iscsi_iqn: %(iscsi_iqn)s, '
+            'target_ip: %(target_ip)s.')
+            % {'iscsi_iqn': iscsi_iqn,
+               'target_ip': target_ip})
+
+        # Create host_group if not exist.
+        host_name = connector['host']
+        hostid = self._find_host(host_name)
+        if hostid is None:
+            hostid = self._add_host(host_name)
+
+        # Add initiator to the host.
+        self._ensure_initiator_added(initiator_name, hostid)
+        hostgroup_id = self._add_host_into_hostgroup(hostid)
+
+        # Mapping lungroup and hostgroup to view.
+        lun_id = self._mapping_hostgroup_and_lungroup(volume_name,
+                                                      hostgroup_id, hostid)
+
+        hostlunid = self._find_host_lun_id(hostid, lun_id)
+
+        LOG.info(_LI("initialize_connection_iscsi, host lun id is: %s.")
+                 % hostlunid)
+
+        # Return iSCSI properties.
+        properties = {}
+        properties['target_discovered'] = False
+        properties['target_portal'] = ('%s:%s' % (target_ip, '3260'))
+        properties['target_iqn'] = iscsi_iqn
+        properties['target_lun'] = int(hostlunid)
+        properties['volume_id'] = volume['id']
+
+        LOG.info(_LI("initialize_connection_iscsi success. Return data: %s.")
+                 % properties)
+        return {'driver_volume_type': 'iscsi', 'data': properties}
+
+    @utils.synchronized('huawei', external=True)
+    def initialize_connection_fc(self, volume, connector):
+        wwns = connector['wwpns']
+        host_name = connector['host']
+        volume_name = self._encode_name(volume['id'])
+
+        LOG.info(_LI(
+            'initialize_connection_fc, initiator: %(initiator_name)s,'
+            ' volume name: %(volume)s.')
+            % {'initiator_name': wwns,
+               'volume': volume_name})
+
+        # Create host_group if not exist.
+        hostid = self._find_host(host_name)
+        if hostid is None:
+            hostid = self._add_host(host_name)
+
+        # Add host into hostgroup.
+        hostgroup_id = self._add_host_into_hostgroup(hostid)
+
+        free_wwns = self._get_connected_free_wwns()
+        LOG.info(_LI("initialize_connection_fc, the array has free wwns: %s")
+                 % free_wwns)
+        for wwn in wwns:
+            if wwn in free_wwns:
+                self._add_fc_port_to_host(hostid, wwn)
+
+        lun_id = self._mapping_hostgroup_and_lungroup(volume_name,
+                                                      hostgroup_id, hostid)
+        host_lun_id = self._find_host_lun_id(hostid, lun_id)
+
+        tgt_port_wwns = []
+        for wwn in wwns:
+            tgtwwpns = self._get_fc_target_wwpns(wwn)
+            if tgtwwpns:
+                tgt_port_wwns.append(tgtwwpns)
+
+        init_targ_map = {}
+        for initiator in wwns:
+            init_targ_map[initiator] = tgt_port_wwns
+
+        # Return FC properties.
+        info = {'driver_volume_type': 'fibre_channel',
+                'data': {'target_lun': int(host_lun_id),
+                         'target_discovered': True,
+                         'target_wwn': tgt_port_wwns,
+                         'volume_id': volume['id'],
+                         'initiator_target_map': init_targ_map}}
+
+        LOG.info(_LI("initialize_connection_fc, return data is: %s.")
+                 % info)
+
+        return info
+
+    def _get_iscsi_tgt_port(self):
+        url = self.url + "/iscsidevicename"
+        result = self.call(url, None)
+
+        msg = 'Get iSCSI target port error.'
+        self._assert_rest_result(result, msg)
+        self._assert_data_in_result(result, msg)
+
+        return result['data'][0]['CMO_ISCSI_DEVICE_NAME']
+
+    def _find_hostgroup(self, groupname):
+        """Get the given hostgroup id."""
+        url = self.url + "/hostgroup?range=[0-8191]"
+        result = self.call(url, None, "GET")
+        self._assert_rest_result(result, 'Get hostgroup information error.')
+
+        host_group_id = None
+        if "data" in result:
+            for item in result['data']:
+                if groupname == item['NAME']:
+                    host_group_id = item['ID']
+                    break
+        return host_group_id
+
+    def _find_lungroup(self, lungroupname):
+        """Get the given hostgroup id."""
+        url = self.url + "/lungroup?range=[0-8191]"
+        result = self.call(url, None, "GET")
+        self._assert_rest_result(result, 'Get lungroup information error.')
+
+        lun_group_id = None
+        if 'data' in result:
+            for item in result['data']:
+                if lungroupname == item['NAME']:
+                    lun_group_id = item['ID']
+                    break
+        return lun_group_id
+
+    def _create_hostgroup(self, hostgroupname):
+        url = self.url + "/hostgroup"
+        data = json.dumps({"TYPE": "14", "NAME": hostgroupname})
+        result = self.call(url, data)
+
+        msg = 'Create hostgroup error.'
+        self._assert_rest_result(result, msg)
+        self._assert_data_in_result(result, msg)
+
+        return result['data']['ID']
+
+    def _create_lungroup(self, lungroupname):
+        url = self.url + "/lungroup"
+        data = json.dumps({"DESCRIPTION": lungroupname,
+                           "APPTYPE": '0',
+                           "GROUPTYPE": '0',
+                           "NAME": lungroupname})
+        result = self.call(url, data)
+
+        msg = 'Create lungroup error.'
+        self._assert_rest_result(result, msg)
+        self._assert_data_in_result(result, msg)
+
+        return result['data']['ID']
+
+    def _delete_lungroup(self, lungroupid):
+        url = self.url + "/LUNGroup/" + lungroupid
+        result = self.call(url, None, "DELETE")
+        self._assert_rest_result(result, 'Delete lungroup error.')
+
+    def _lungroup_associated(self, viewid, lungroupid):
+        url_subfix = ("/mappingview/associate?TYPE=245&"
+                      "ASSOCIATEOBJTYPE=256&ASSOCIATEOBJID=%s" % lungroupid)
+        url = self.url + url_subfix
+        result = self.call(url, None, "GET")
+        self._assert_rest_result(result, 'Check lungroup associated error.')
+
+        if "data" in result:
+            for item in result['data']:
+                if viewid == item['ID']:
+                    return True
+        return False
+
+    def _hostgroup_associated(self, viewid, hostgroupid):
+        url_subfix = ("/mappingview/associate?TYPE=245&"
+                      "ASSOCIATEOBJTYPE=14&ASSOCIATEOBJID=%s" % hostgroupid)
+        url = self.url + url_subfix
+        result = self.call(url, None, "GET")
+        self._assert_rest_result(result, 'Check hostgroup associated error.')
+
+        if "data" in result:
+            for item in result['data']:
+                if viewid == item['ID']:
+                    return True
+        return False
+
+    def _find_host_lun_id(self, hostid, lunid):
+
+        url = self.url + ("/lun/associate?TYPE=11&ASSOCIATEOBJTYPE=21"
+                          "&ASSOCIATEOBJID=%s" % (hostid))
+        result = self.call(url, None, "GET")
+        self._assert_rest_result(result, 'Find host lun id error.')
+
+        host_lun_id = 1
+        if "data" in result:
+            for item in result['data']:
+                if lunid == item['ID']:
+                    associate_data = result['data'][0]['ASSOCIATEMETADATA']
+                    try:
+                        hostassoinfo = json.loads(associate_data)
+                        host_lun_id = hostassoinfo['HostLUNID']
+                        break
+                    except Exception as err:
+                        msg = (_LE("JSON transfer data error. %s") % err)
+                        LOG.error(msg)
+                        raise
+        return host_lun_id
+
+    def _find_host(self, hostname):
+        """Get the given host ID."""
+        url = self.url + "/host?range=[0-65534]"
+        data = json.dumps({"TYPE": "21"})
+        result = self.call(url, data, "GET")
+        self._assert_rest_result(result, 'Find host in hostgroup error.')
+
+        host_id = None
+        if "data" in result:
+            for item in result['data']:
+                if hostname == item['NAME']:
+                    host_id = item['ID']
+                    break
+        return host_id
+
+    def _add_host(self, hostname):
+        """Add a new host."""
+        url = self.url + "/host"
+        data = json.dumps({"TYPE": "21",
+                           "NAME": hostname,
+                           "OPERATIONSYSTEM": "0"})
+        result = self.call(url, data)
+        self._assert_rest_result(result, 'Add new host error.')
+
+        if "data" in result:
+            return result['data']['ID']
+        else:
+            return None
+
+    def _is_host_associate_to_hostgroup(self, hostgroup_id, host_id):
+        """Check whether the host is associated to the hostgroup."""
+        url_subfix = ("/host/associate?TYPE=21&"
+                      "ASSOCIATEOBJTYPE=14&ASSOCIATEOBJID=%s" % hostgroup_id)
+
+        url = self.url + url_subfix
+        result = self.call(url, None, "GET")
+        self._assert_rest_result(result, 'Check hostgroup associated error.')
+
+        if "data" in result:
+            for item in result['data']:
+                if host_id == item['ID']:
+                    return True
+
+        return False
+
+    def _is_lun_associated_to_lungroup(self, lungroup_id, lun_id):
+        """Check whether the lun is associated to the lungroup."""
+        url_subfix = ("/lun/associate?TYPE=11&"
+                      "ASSOCIATEOBJTYPE=256&ASSOCIATEOBJID=%s" % lungroup_id)
+
+        url = self.url + url_subfix
+        result = self.call(url, None, "GET")
+        self._assert_rest_result(result, 'Check lungroup associate error.')
+
+        if "data" in result:
+            for item in result['data']:
+                if lun_id == item['ID']:
+                    return True
+
+        return False
+
+    def _associate_host_to_hostgroup(self, hostgroup_id, host_id):
+        url = self.url + "/hostgroup/associate"
+        data = json.dumps({"TYPE": "14",
+                           "ID": hostgroup_id,
+                           "ASSOCIATEOBJTYPE": "21",
+                           "ASSOCIATEOBJID": host_id})
+
+        result = self.call(url, data)
+        self._assert_rest_result(result, 'Associate host to hostgroup error.')
+
+    def _associate_lun_to_lungroup(self, lungroupid, lunid):
+        """Associate lun to lungroup."""
+        url = self.url + "/lungroup/associate"
+        data = json.dumps({"ID": lungroupid,
+                           "ASSOCIATEOBJTYPE": "11",
+                           "ASSOCIATEOBJID": lunid})
+        result = self.call(url, data)
+        self._assert_rest_result(result, 'Associate lun to lungroup error.')
+
+    def _remove_lun_from_lungroup(self, lungroupid, lunid):
+        """Remove lun from lungroup."""
+
+        url = self.url + ("/lungroup/associate?ID=%s"
+                          "&ASSOCIATEOBJTYPE=11&ASSOCIATEOBJID=%s"
+                          % (lungroupid, lunid))
+
+        result = self.call(url, None, 'DELETE')
+        self._assert_rest_result(result,
+                                 'Delete associated lun from lungroup error.')
+
+    def _initiator_is_added_to_array(self, ininame):
+        """Check whether the initiator is already added on the array."""
+        url = self.url + "/iscsi_initiator?range=[0-65535]"
+        result = self.call(url, None, "GET")
+        self._assert_rest_result(result,
+                                 'Check initiator added to array error.')
+
+        if "data" in result:
+            for item in result['data']:
+                if item["ID"] == ininame:
+                    return True
+        return False
+
+    def _is_initiator_associated_to_host(self, ininame):
+        """Check whether the initiator is associated to the host."""
+        url = self.url + "/iscsi_initiator?range=[0-65535]"
+        result = self.call(url, None, "GET")
+        self._assert_rest_result(result,
+                                 'Check initiator associated to host error.')
+
+        if "data" in result:
+            for item in result['data']:
+                if item['ID'] == ininame and item['ISFREE'] == "true":
+                    return False
+        return True
+
+    def _add_initiator_to_array(self, ininame):
+        """Add a new initiator to storage device."""
+        url = self.url + "/iscsi_initiator/"
+        data = json.dumps({"TYPE": "222",
+                           "ID": ininame,
+                           "USECHAP": "false"})
+        result = self.call(url, data)
+        self._assert_rest_result(result, 'Add initiator to array error.')
+
+    def _associate_initiator_to_host(self, ininame, hostid):
+        """Associate initiator with the host."""
+        url = self.url + "/iscsi_initiator/" + ininame
+        data = json.dumps({"TYPE": "222",
+                           "ID": ininame,
+                           "USECHAP": "false",
+                           "PARENTTYPE": "21",
+                           "PARENTID": hostid})
+        result = self.call(url, data, "PUT")
+        self._assert_rest_result(result, 'Associate initiator to host error.')
+
+    def _find_mapping_view(self, name):
+        """Find mapping view."""
+        url = self.url + "/mappingview?range=[0-65535]"
+        data = json.dumps({"TYPE": "245"})
+        result = self.call(url, data, "GET")
+
+        msg = 'Find map view error.'
+        self._assert_rest_result(result, msg)
+        viewid = None
+        if "data" in result:
+            for item in result['data']:
+                if name == item['NAME']:
+                    viewid = item['ID']
+                    break
+
+        return viewid
+
+    def _add_mapping_view(self, name):
+        url = self.url + "/mappingview"
+        data = json.dumps({"NAME": name, "TYPE": "245"})
+        result = self.call(url, data)
+        self._assert_rest_result(result, 'Add map view error.')
+
+        return result['data']['ID']
+
+    def _associate_hostgroup_to_view(self, viewID, hostGroupID):
+        url = self.url + "/MAPPINGVIEW/CREATE_ASSOCIATE"
+        data = json.dumps({"ASSOCIATEOBJTYPE": "14",
+                           "ASSOCIATEOBJID": hostGroupID,
+                           "TYPE": "245",
+                           "ID": viewID})
+        result = self.call(url, data, "PUT")
+        self._assert_rest_result(result, 'Associate host to view error.')
+
+    def _associate_lungroup_to_view(self, viewID, lunGroupID):
+        url = self.url + "/MAPPINGVIEW/CREATE_ASSOCIATE"
+        data = json.dumps({"ASSOCIATEOBJTYPE": "256",
+                           "ASSOCIATEOBJID": lunGroupID,
+                           "TYPE": "245",
+                           "ID": viewID})
+        result = self.call(url, data, "PUT")
+        self._assert_rest_result(result, 'Associate lungroup to view error.')
+
+    def _delete_lungroup_mapping_view(self, view_id, lungroup_id):
+        """Remove lungroup associate from the mapping view."""
+        url = self.url + "/mappingview/REMOVE_ASSOCIATE"
+        data = json.dumps({"ASSOCIATEOBJTYPE": "256",
+                           "ASSOCIATEOBJID": lungroup_id,
+                           "TYPE": "245",
+                           "ID": view_id})
+        result = self.call(url, data, "PUT")
+        self._assert_rest_result(result, 'Delete lungroup from view error.')
+
+    def _delete_hostgoup_mapping_view(self, view_id, hostgroup_id):
+        """Remove hostgroup associate from the mapping view."""
+        url = self.url + "/mappingview/REMOVE_ASSOCIATE"
+        data = json.dumps({"ASSOCIATEOBJTYPE": "14",
+                           "ASSOCIATEOBJID": hostgroup_id,
+                           "TYPE": "245",
+                           "ID": view_id})
+        result = self.call(url, data, "PUT")
+        self._assert_rest_result(result, 'Delete hostgroup from view error.')
+
+    def _delete_mapping_view(self, view_id):
+        """Remove mapping view from the storage."""
+        url = self.url + "/mappingview/" + view_id
+        result = self.call(url, None, "DELETE")
+        self._assert_rest_result(result, 'Delete map view error.')
+
+    def _get_lunnum_from_lungroup(self, lungroup_id):
+        """Check if there are still other luns associated to the lungroup."""
+        url_subfix = ("/lun/count?TYPE=11&ASSOCIATEOBJTYPE=256&"
+                      "ASSOCIATEOBJID=%s" % lungroup_id)
+        url = self.url + url_subfix
+        result = self.call(url, None, "GET")
+        self._assert_rest_result(result, 'Find lun number error.')
+        if "data" in result:
+            lunnum = result['data']['COUNT']
+            return lunnum
+        return None
+
+    @utils.synchronized('huawei', external=True)
+    def terminate_connection_iscsi(self, volume, connector):
+        """Delete map between a volume and a host."""
+        initiator_name = connector['initiator']
+        volume_name = self._encode_name(volume['id'])
+        lun_id = volume.get('provider_location', None)
+        LOG.info(_LI(
+            'terminate_connection:volume name: %(volume)s, '
+            'initiator name: %(ini)s, '
+            'lun_id: %(lunid)s.')
+            % {'volume': volume_name,
+               'ini': initiator_name,
+               'lunid': lun_id})
+
+        if lun_id:
+            if self._check_lun_exist(lun_id) is True:
+                # Get lungroupid by lun_id.
+                lungroup_id = self._get_lungroupid_by_lunid(lun_id)
+
+                if lungroup_id is None:
+                    LOG.info(_LI("Can't find lun in lungroup."))
+                else:
+                    self._remove_lun_from_lungroup(lungroup_id, lun_id)
+                    LOG.info(_LI(
+                        "Check if there are still other luns associated"
+                        " to the lungroup."))
+                    left_lunnum = self._get_lunnum_from_lungroup(lungroup_id)
+                    return left_lunnum
+
+            else:
+                LOG.warning(_LW("Can't find lun on the array."))
+
+    def terminate_connection_fc(self, volume, connector):
+        """Delete map between a volume and a host."""
+        wwns = connector['wwpns']
+        left_lunnum = self.terminate_connection_iscsi(volume, connector)
+
+        tgt_port_wwns = []
+        for wwn in wwns:
+            tgtwwpns = self._get_fc_target_wwpns(wwn)
+            if tgtwwpns:
+                tgt_port_wwns.append(tgtwwpns)
+
+        init_targ_map = {}
+        for initiator in wwns:
+            init_targ_map[initiator] = tgt_port_wwns
+
+        if left_lunnum and left_lunnum > 0:
+            info = {'driver_volume_type': 'fibre_channel',
+                    'data': {}}
+        else:
+            info = {'driver_volume_type': 'fibre_channel',
+                    'data': {'target_wwn': tgt_port_wwns,
+                             'initiator_target_map': init_targ_map}}
+
+        return info
+
+    def login_out(self):
+        """logout the session."""
+        url = self.url + "/sessions"
+        result = self.call(url, None, "DELETE")
+        self._assert_rest_result(result, 'Log out of session error.')
+
+    def _start_luncopy(self, luncopyid):
+        """Start a LUNcopy."""
+        url = self.url + "/LUNCOPY/start"
+        data = json.dumps({"TYPE": "219", "ID": luncopyid})
+        result = self.call(url, data, "PUT")
+        self._assert_rest_result(result, 'Start lun copy error.')
+
+    def _get_capacity(self):
+        """Get free capacity and total capacity of the pools."""
+        poolinfo = self._find_pool_info()
+        pool_capacity = {'total_capacity': 0.0,
+                         'CAPACITY': 0.0}
+
+        if poolinfo:
+            total = int(poolinfo['TOTALCAPACITY']) / 1024.0 / 1024.0 / 2
+            free = int(poolinfo['CAPACITY']) / 1024.0 / 1024.0 / 2
+            pool_capacity['total_capacity'] = total
+            pool_capacity['free_capacity'] = free
+
+        return pool_capacity
+
+    def _get_lun_conf_params(self):
+        """Get parameters from config file for creating lun."""
+        # Default lun set information.
+        lunsetinfo = {'LUNType': 'Thick',
+                      'StripUnitSize': '64',
+                      'WriteType': '1',
+                      'MirrorSwitch': '1',
+                      'PrefetchType': '3',
+                      'PrefetchValue': '0',
+                      'PrefetchTimes': '0'}
+
+        root = self._read_xml()
+        luntype = root.findtext('LUN/LUNType')
+        if luntype:
+            if luntype.strip() in ['Thick', 'Thin']:
+                lunsetinfo['LUNType'] = luntype.strip()
+                if luntype.strip() == 'Thick':
+                    lunsetinfo['LUNType'] = 0
+                if luntype.strip() == 'Thin':
+                    lunsetinfo['LUNType'] = 1
+
+            elif luntype is not '' and luntype is not None:
+                err_msg = (_(
+                    'Config file is wrong. LUNType must be "Thin"'
+                    ' or "Thick". LUNType: %(fetchtype)s.')
+                    % {'fetchtype': luntype})
+                LOG.error(err_msg)
+                raise exception.VolumeBackendAPIException(data=err_msg)
+
+        stripunitsize = root.findtext('LUN/StripUnitSize')
+        if stripunitsize is not None:
+            lunsetinfo['StripUnitSize'] = stripunitsize.strip()
+        writetype = root.findtext('LUN/WriteType')
+        if writetype is not None:
+            lunsetinfo['WriteType'] = writetype.strip()
+        mirrorswitch = root.findtext('LUN/MirrorSwitch')
+        if mirrorswitch is not None:
+            lunsetinfo['MirrorSwitch'] = mirrorswitch.strip()
+
+        prefetch = root.find('LUN/Prefetch')
+        fetchtype = prefetch.attrib['Type']
+        if prefetch is not None and prefetch.attrib['Type']:
+            if fetchtype in ['0', '1', '2', '3']:
+                lunsetinfo['PrefetchType'] = fetchtype.strip()
+                typevalue = prefetch.attrib['Value'].strip()
+                if lunsetinfo['PrefetchType'] == '1':
+                    double_value = int(typevalue) * 2
+                    typevalue_double = six.text_type(double_value)
+                    lunsetinfo['PrefetchValue'] = typevalue_double
+                elif lunsetinfo['PrefetchType'] == '2':
+                    lunsetinfo['PrefetchValue'] = typevalue
+            else:
+                err_msg = (_(
+                    'PrefetchType config is wrong. PrefetchType'
+                    ' must be in 0,1,2,3. PrefetchType is: %(fetchtype)s.')
+                    % {'fetchtype': fetchtype})
+                LOG.error(err_msg)
+                raise exception.CinderException(err_msg)
+        else:
+            LOG.info(_LI(
+                'Use default PrefetchType. '
+                'PrefetchType: Intelligent.'))
+
+        return lunsetinfo
+
+    def _get_luncopy_info(self, luncopyid):
+        """Get LUNcopy information."""
+        url = self.url + "/LUNCOPY?range=[0-100000]"
+        data = json.dumps({"TYPE": "219", })
+        result = self.call(url, data, "GET")
+        self._assert_rest_result(result, 'Get lun copy information error.')
+
+        luncopyinfo = {}
+        if "data" in result:
+            for item in result['data']:
+                if luncopyid == item['ID']:
+                    luncopyinfo['name'] = item['NAME']
+                    luncopyinfo['id'] = item['ID']
+                    luncopyinfo['state'] = item['HEALTHSTATUS']
+                    luncopyinfo['status'] = item['RUNNINGSTATUS']
+                    break
+        return luncopyinfo
+
+    def _delete_luncopy(self, luncopyid):
+        """Delete a LUNcopy."""
+        url = self.url + "/LUNCOPY/%s" % luncopyid
+        result = self.call(url, None, "DELETE")
+        self._assert_rest_result(result, 'Delete lun copy error.')
+
+    def _get_connected_free_wwns(self):
+        """Get free connected FC port WWNs.
+
+        If no new ports connected, return an empty list.
+        """
+        url = self.url + "/fc_initiator?ISFREE=true&range=[0-1000]"
+        result = self.call(url, None, "GET")
+
+        msg = 'Get connected free FC wwn error.'
+        self._assert_rest_result(result, msg)
+
+        wwns = []
+        if 'data' in result:
+            for item in result['data']:
+                wwns.append(item['ID'])
+
+        return wwns
+
+    def _add_fc_port_to_host(self, hostid, wwn):
+        """Add a FC port to the host."""
+        url = self.url + "/fc_initiator/" + wwn
+        data = json.dumps({"TYPE": "223",
+                           "ID": wwn,
+                           "PARENTTYPE": 21,
+                           "PARENTID": hostid})
+        result = self.call(url, data, "PUT")
+        self._assert_rest_result(result, 'Add FC port to host error.')
+
+    def _get_iscsi_port_info(self, ip):
+        """Get iscsi port info in order to build the iscsi target iqn."""
+        url = self.url + "/eth_port"
+        result = self.call(url, None, "GET")
+
+        msg = 'Get iSCSI port information error.'
+        self._assert_rest_result(result, msg)
+        self._assert_data_in_result(result, msg)
+
+        iscsi_port_info = None
+        for item in result['data']:
+            if ip == item['IPV4ADDR']:
+                iscsi_port_info = item['LOCATION']
+                break
+
+        return iscsi_port_info
+
+    def _get_iscsi_conf(self):
+        """Get iSCSI info from config file."""
+        iscsiinfo = {}
+        root = self._read_xml()
+        TargetIP = root.findtext('iSCSI/DefaultTargetIP').strip()
+        iscsiinfo['DefaultTargetIP'] = TargetIP
+        initiator_list = []
+
+        for dic in root.findall('iSCSI/Initiator'):
+            # Strip values of dic.
+            tmp_dic = {}
+            for k in dic.items():
+                tmp_dic[k[0]] = k[1].strip()
+
+            initiator_list.append(tmp_dic)
+
+        iscsiinfo['Initiator'] = initiator_list
+
+        return iscsiinfo
+
+    def _get_tgt_iqn(self, iscsiip):
+        """Get target iSCSI iqn."""
+
+        ip_info = self._get_iscsi_port_info(iscsiip)
+        iqn_prefix = self._get_iscsi_tgt_port()
+
+        LOG.info(_LI('Request ip info is: %s.') % ip_info)
+        split_list = ip_info.split(".")
+        newstr = split_list[1] + split_list[2]
+        LOG.info(_LI('New str info is: %s.') % newstr)
+
+        if ip_info:
+            if newstr[0] == 'A':
+                ctr = "0"
+            elif newstr[0] == 'B':
+                ctr = "1"
+            interface = '0' + newstr[1]
+            port = '0' + newstr[3]
+            iqn_suffix = ctr + '02' + interface + port
+            for i in range(0, len(iqn_suffix)):
+                if iqn_suffix[i] != '0':
+                    iqn_suffix = iqn_suffix[i:]
+                    break
+            iqn = iqn_prefix + ':' + iqn_suffix + ':' + iscsiip
+            LOG.info(_LI('_get_tgt_iqn: iSCSI target iqn is: %s.') % iqn)
+            return iqn
+        else:
+            return None
+
+    def _get_fc_target_wwpns(self, wwn):
+        url = (self.url +
+               "/host_link?INITIATOR_TYPE=223&INITIATOR_PORT_WWN=" + wwn)
+        result = self.call(url, None, "GET")
+
+        msg = 'Get FC target wwpn error.'
+        self._assert_rest_result(result, msg)
+
+        fc_wwpns = None
+        if "data" in result:
+            for item in result['data']:
+                if wwn == item['INITIATOR_PORT_WWN']:
+                    fc_wwpns = item['TARGET_PORT_WWN']
+                    break
+
+        return fc_wwpns
+
+    def update_volume_stats(self):
+        capacity = self._get_capacity()
+        data = {}
+        data['vendor_name'] = 'Huawei'
+        data['total_capacity_gb'] = capacity['total_capacity']
+        data['free_capacity_gb'] = capacity['free_capacity']
+        data['reserved_percentage'] = 0
+        data['QoS_support'] = True
+        data['Tier_support'] = True
+        return data
+
+    def _find_qos_policy_info(self, policy_name):
+        url = self.url + "/ioclass"
+        result = self.call(url, None, "GET")
+
+        msg = 'Get QoS policy error.'
+        self._assert_rest_result(result, msg)
+
+        qos_info = {}
+        if "data" in result:
+            for item in result['data']:
+                if policy_name == item['NAME']:
+                    qos_info['ID'] = item['ID']
+                    lun_list = json.loads(item['LUNLIST'])
+                    qos_info['LUNLIST'] = lun_list
+                    qos_info['RUNNINGSTATUS'] = item['RUNNINGSTATUS']
+                    break
+
+        return qos_info
+
+    def _update_qos_policy_lunlist(self, lunlist, policy_id):
+        url = self.url + "/ioclass/" + policy_id
+        data = json.dumps({"TYPE": "230",
+                           "ID": policy_id,
+                           "LUNLIST": lunlist})
+        result = self.call(url, data, "PUT")
+        self._assert_rest_result(result, 'Update QoS policy error.')
+
+    def _get_login_info(self):
+        """Get login IP, username and password from config file."""
+        logininfo = {}
+        filename = self.configuration.cinder_huawei_conf_file
+        tree = ET.parse(filename)
+        root = tree.getroot()
+        logininfo['RestURL'] = root.findtext('Storage/RestURL').strip()
+
+        need_encode = False
+        for key in ['UserName', 'UserPassword']:
+            node = root.find('Storage/%s' % key)
+            node_text = node.text
+            # Prefix !$$$ means encoded already.
+            if node_text.find('!$$$') > -1:
+                logininfo[key] = base64.b64decode(node_text[4:])
+            else:
+                logininfo[key] = node_text
+                node.text = '!$$$' + base64.b64encode(node_text)
+                need_encode = True
+        if need_encode:
+            self._change_file_mode(filename)
+            try:
+                tree.write(filename, 'UTF-8')
+            except Exception as err:
+                LOG.warning(_LW('Unable to access config file. %s') % err)
+
+        return logininfo
+
+    def _change_file_mode(self, filepath):
+        utils.execute('chmod', '640', filepath, run_as_root=True)
+
+    def _check_conf_file(self):
+        """Check the config file, make sure the essential items are set."""
+        root = self._read_xml()
+        resturl = root.findtext('Storage/RestURL')
+        username = root.findtext('Storage/UserName')
+        pwd = root.findtext('Storage/UserPassword')
+        pool_node = root.findall('LUN/StoragePool')
+
+        if (not resturl) or (not username) or (not pwd):
+            err_msg = (_(
+                '_check_conf_file: Config file invalid. RestURL,'
+                ' UserName and UserPassword must be set.'))
+            LOG.error(err_msg)
+            raise exception.InvalidInput(reason=err_msg)
+
+        if not pool_node:
+            err_msg = (_(
+                '_check_conf_file: Config file invalid. '
+                'StoragePool must be set.'))
+            LOG.error(err_msg)
+            raise exception.InvalidInput(reason=err_msg)
+
+    def _get_iscsi_params(self, connector):
+        """Get target iSCSI params, including iqn, IP."""
+        initiator = connector['initiator']
+        iscsi_conf = self._get_iscsi_conf()
+        target_ip = None
+        for ini in iscsi_conf['Initiator']:
+            if ini['Name'] == initiator:
+                target_ip = ini['TargetIP']
+                break
+        # If didn't specify target IP for some initiator, use default IP.
+        if not target_ip:
+            if iscsi_conf['DefaultTargetIP']:
+                target_ip = iscsi_conf['DefaultTargetIP']
+
+            else:
+                msg = (_(
+                    '_get_iscsi_params: Failed to get target IP '
+                    'for initiator %(ini)s, please check config file.')
+                    % {'ini': initiator})
+                LOG.error(msg)
+                raise exception.InvalidInput(reason=msg)
+
+        # If didn't get target IP for rest, Automated assembly target ip.
+        target_iqn = self._get_tgt_iqn_from_rest(target_ip)
+
+        if not target_iqn:
+            target_iqn = self._get_tgt_iqn(target_ip)
+
+        return (target_iqn, target_ip)
+
+    def _get_tgt_iqn_from_rest(self, target_ip):
+        url = self.url + "/iscsi_tgt_port"
+        result = self.call(url, None, "GET")
+
+        target_iqn = None
+        if result['error']['code'] != 0:
+            LOG.warning(_LW("Can't find target iqn from rest."))
+            return target_iqn
+
+        if 'data' in result:
+            for item in result['data']:
+                if target_ip in item['ID']:
+                    target_iqn = item['ID']
+
+        if not target_iqn:
+            LOG.warning(_LW("Can't find target iqn from rest."))
+            return target_iqn
+
+        split_list = target_iqn.split(",")
+        target_iqn_before = split_list[0]
+
+        split_list_new = target_iqn_before.split("+")
+        target_iqn = split_list_new[1]
+
+        return target_iqn
+
+    @utils.synchronized('huawei', external=True)
+    def extend_volume(self, volume, new_size):
+        """Extends a Huawei volume."""
+
+        LOG.info(_LI('Entering extend_volume.'))
+        volume_size = self._get_volume_size(volume)
+        new_volume_size = int(new_size) * units.Gi / 512
+        volume_name = self._encode_name(volume['id'])
+
+        LOG.info(_LI(
+            'Extend Volume: %(volumename)s, oldsize:'
+            ' %(oldsize)s  newsize: %(newsize)s.')
+            % {'volumename': volume_name,
+               'oldsize': volume_size,
+               'newsize': new_volume_size})
+
+        lun_id = self._get_volume_by_name(volume_name)
+
+        if lun_id is None:
+            msg = (_(
+                "Can't find lun info on the array, lun name is: %(name)s.")
+                % {'name': volume_name})
+            LOG.error(msg)
+            raise exception.CinderException(msg)
+
+        url = self.url + "/lun/expand"
+        data = json.dumps({"TYPE": 11, "ID": lun_id,
+                           "CAPACITY": new_volume_size})
+        result = self.call(url, data, 'PUT')
+
+        msg = 'Extend volume error.'
+        self._assert_rest_result(result, msg)
+        self._assert_data_in_result(result, msg)
+
+        return result['data']['ID']
+
+    def _get_volume_type(self, type_id):
+        ctxt = context.get_admin_context()
+        return volume_types.get_volume_type(ctxt, type_id)
+
+    def _get_qos_by_volume_type(self, volume_type):
+        qos = {}
+        qos_specs_id = volume_type.get('qos_specs_id')
+        specs = volume_type.get('extra_specs')
+
+        # NOTE(kmartin): We prefer the qos_specs association
+        # and override any existing extra-specs settings
+        # if present.
+        if qos_specs_id is not None:
+            kvs = qos_specs.get_qos_specs(context.get_admin_context(),
+                                          qos_specs_id)['specs']
+        else:
+            kvs = specs
+
+        LOG.info(_LI('The QoS sepcs is: %s.') % kvs)
+        for key, value in kvs.iteritems():
+            if key in huawei_valid_keys:
+                qos[key.upper()] = value
+
+        return qos
+
+    def _get_qos_value(self, qos, key, default=None):
+        if key in qos:
+            return qos[key]
+        else:
+            return default
+
+    def _create_qos_policy(self, qos, lun_id):
+
+        # Get local time.
+        localtime = time.strftime('%Y%m%d%H%M%S', time.localtime(time.time()))
+        # Package QoS name.
+        qos_name = QOS_NAME_PREFIX + lun_id + '_' + localtime
+        baseData = {"TYPE": "230",
+                    "NAME": qos_name,
+                    "LUNLIST": ["%s" % lun_id],
+                    "CLASSTYPE": "1",
+                    "SCHEDULEPOLICY": "2",
+                    "SCHEDULESTARTTIME": "1410969600",
+                    "STARTTIME": "08:00",
+                    "DURATION": "86400",
+                    "CYCLESET": "[1,2,3,4,5,6,0]"
+                    }
+
+        mergedata = dict(baseData.items() + qos.items())
+        url = self.url + "/ioclass/"
+        data = json.dumps(mergedata)
+
+        result = self.call(url, data)
+        self._assert_rest_result(result, 'Create QoS policy error.')
+
+        return result['data']['ID']
+
+    def _delete_qos_policy(self, qos_id):
+        """Delete a QoS policy."""
+
+        url = self.url + "/ioclass/" + qos_id
+        data = json.dumps({"TYPE": "230",
+                           "ID": qos_id})
+
+        result = self.call(url, data, 'DELETE')
+        self._assert_rest_result(result, 'Delete QoS policy error.')
+
+    def _active_deactive_qos(self, qos_id, enablestatus):
+        """Active or deactive QoS.
+
+        enablestatus: true (active)
+        enbalestatus: false (deactive)
+        """
+
+        url = self.url + "/ioclass/active/" + qos_id
+        data = json.dumps({"TYPE": 230,
+                           "ID": qos_id,
+                           "ENABLESTATUS": enablestatus})
+        result = self.call(url, data, "PUT")
+        self._assert_rest_result(result, 'Active or Deactive QoS error.')
+
+    def _get_qos_info(self, qos_id):
+        """Get QoS information."""
+
+        url = self.url + "/ioclass/" + qos_id
+        data = json.dumps({"TYPE": "230",
+                           "ID": qos_id})
+        result = self.call(url, data, "GET")
+        self._assert_rest_result(result, 'Get QoS information error.')
+
+        return result['data']
+
+    def _check_qos_high_priority(self, qos):
+        """Check QoS priority."""
+
+        for key, value in qos.iteritems():
+            if (key.find('MIN') == 0) or (key.find('LATENCY') == 0):
+                return True
+
+        return False
+
+    def _change_lun_priority(self, lunid):
+        """Change lun priority to high."""
+
+        url = self.url + "/lun/" + lunid
+        data = json.dumps({"TYPE": "11",
+                           "ID": lunid,
+                           "IOPRIORITY": "3"})
+
+        result = self.call(url, data, "PUT")
+        self._assert_rest_result(result, 'Change lun priority error.')
+
+    def _get_qosid_by_lunid(self, lunid):
+        """Get qosid by lunid."""
+
+        url = self.url + "/lun/" + lunid
+        data = json.dumps({"TYPE": "11",
+                           "ID": lunid})
+
+        result = self.call(url, data, "GET")
+        self._assert_rest_result(result, 'Get qosid by lunid error.')
+
+        return result['data']['IOCLASSID']
+
+    def _get_lungroupid_by_lunid(self, lunid):
+        """Get lungroupid by lunid."""
+
+        url = self.url + ("/lungroup/associate?TYPE=256"
+                          "&ASSOCIATEOBJTYPE=11&ASSOCIATEOBJID=%s" % lunid)
+
+        result = self.call(url, None, "GET")
+        self._assert_rest_result(result, 'Get lungroupid by lunid error.')
+
+        lun_group_id = None
+        # Lun only in one lungroup.
+        if 'data' in result:
+            for item in result['data']:
+                lun_group_id = item['ID']
+
+        return lun_group_id