diff --git a/tempest/api/compute/servers/test_delete_server.py b/tempest/api/compute/servers/test_delete_server.py
index 6a5da58..55931a4 100644
--- a/tempest/api/compute/servers/test_delete_server.py
+++ b/tempest/api/compute/servers/test_delete_server.py
@@ -116,6 +116,7 @@
         self.assertEqual('204', resp['status'])
         self.client.wait_for_server_termination(server['id'])
 
+    @test.services('volume')
     @test.attr(type='gate')
     def test_delete_server_while_in_attached_volume(self):
         # Delete a server while a volume is attached to it
diff --git a/tempest/api/compute/servers/test_server_rescue.py b/tempest/api/compute/servers/test_server_rescue.py
index a984ade..5986f41 100644
--- a/tempest/api/compute/servers/test_server_rescue.py
+++ b/tempest/api/compute/servers/test_server_rescue.py
@@ -45,12 +45,6 @@
                                                              cls.sg_desc)
         cls.sg_id = cls.sg['id']
 
-        # Create a volume and wait for it to become ready for attach
-        resp, cls.volume = cls.volumes_extensions_client.create_volume(
-            1, display_name=data_utils.rand_name(cls.__name__ + '_volume'))
-        cls.volumes_extensions_client.wait_for_volume_status(
-            cls.volume['id'], 'available')
-
         # Server for positive tests
         resp, server = cls.create_test_server(wait_until='BUILD')
         cls.server_id = server['id']
@@ -64,8 +58,6 @@
     def resource_cleanup(cls):
         # Deleting the floating IP which is created in this method
         cls.floating_ips_client.delete_floating_ip(cls.floating_ip_id)
-        if getattr(cls, 'volume', None):
-            cls.delete_volume(cls.volume['id'])
         resp, cls.sg = cls.security_groups_client.delete_security_group(
             cls.sg_id)
         super(ServerRescueTestJSON, cls).resource_cleanup()
diff --git a/tempest/api/compute/servers/test_server_rescue_negative.py b/tempest/api/compute/servers/test_server_rescue_negative.py
index 0d29968..de43164 100644
--- a/tempest/api/compute/servers/test_server_rescue_negative.py
+++ b/tempest/api/compute/servers/test_server_rescue_negative.py
@@ -35,12 +35,6 @@
         super(ServerRescueNegativeTestJSON, cls).resource_setup()
         cls.device = CONF.compute.volume_device_name
 
-        # Create a volume and wait for it to become ready for attach
-        resp, cls.volume = cls.volumes_extensions_client.create_volume(
-            1, display_name=data_utils.rand_name(cls.__name__ + '_volume'))
-        cls.volumes_extensions_client.wait_for_volume_status(
-            cls.volume['id'], 'available')
-
         # Server for negative tests
         resp, server = cls.create_test_server(wait_until='BUILD')
         resp, resc_server = cls.create_test_server(wait_until='ACTIVE')
@@ -54,11 +48,14 @@
         cls.servers_client.wait_for_server_status(cls.rescue_id, 'RESCUE')
         cls.servers_client.wait_for_server_status(cls.server_id, 'ACTIVE')
 
-    @classmethod
-    def resource_cleanup(cls):
-        if getattr(cls, 'volume', None):
-            cls.delete_volume(cls.volume['id'])
-        super(ServerRescueNegativeTestJSON, cls).resource_cleanup()
+    def _create_volume(self):
+        resp, volume = self.volumes_extensions_client.create_volume(
+            1, display_name=data_utils.rand_name(
+                self.__class__.__name__ + '_volume'))
+        self.addCleanup(self.delete_volume, volume['id'])
+        self.volumes_extensions_client.wait_for_volume_status(
+            volume['id'], 'available')
+        return volume
 
     def _detach(self, server_id, volume_id):
         self.servers_client.detach_volume(server_id, volume_id)
@@ -108,8 +105,11 @@
                           self.rescue_id,
                           self.image_ref_alt)
 
+    @test.services('volume')
     @test.attr(type=['negative', 'gate'])
     def test_rescued_vm_attach_volume(self):
+        volume = self._create_volume()
+
         # Rescue the server
         self.servers_client.rescue_server(self.server_id,
                                           adminPass=self.password)
@@ -120,31 +120,34 @@
         self.assertRaises(exceptions.Conflict,
                           self.servers_client.attach_volume,
                           self.server_id,
-                          self.volume['id'],
+                          volume['id'],
                           device='/dev/%s' % self.device)
 
+    @test.services('volume')
     @test.attr(type=['negative', 'gate'])
     def test_rescued_vm_detach_volume(self):
+        volume = self._create_volume()
+
         # Attach the volume to the server
         self.servers_client.attach_volume(self.server_id,
-                                          self.volume['id'],
+                                          volume['id'],
                                           device='/dev/%s' % self.device)
         self.volumes_extensions_client.wait_for_volume_status(
-            self.volume['id'], 'in-use')
+            volume['id'], 'in-use')
 
         # Rescue the server
         self.servers_client.rescue_server(self.server_id,
                                           adminPass=self.password)
         self.servers_client.wait_for_server_status(self.server_id, 'RESCUE')
         # addCleanup is a LIFO queue
-        self.addCleanup(self._detach, self.server_id, self.volume['id'])
+        self.addCleanup(self._detach, self.server_id, volume['id'])
         self.addCleanup(self._unrescue, self.server_id)
 
         # Detach the volume from the server expecting failure
         self.assertRaises(exceptions.Conflict,
                           self.servers_client.detach_volume,
                           self.server_id,
-                          self.volume['id'])
+                          volume['id'])
 
 
 class ServerRescueNegativeTestXML(ServerRescueNegativeTestJSON):
diff --git a/tempest/api/volume/admin/test_multi_backend.py b/tempest/api/volume/admin/test_multi_backend.py
index 042cde9..9e24993 100644
--- a/tempest/api/volume/admin/test_multi_backend.py
+++ b/tempest/api/volume/admin/test_multi_backend.py
@@ -66,13 +66,14 @@
 
         params = {self.name_field: vol_name, 'volume_type': type_name}
 
-        _, self.volume = self.volume_client.create_volume(size=1, **params)
+        _, self.volume = self.admin_volume_client.create_volume(size=1,
+                                                                **params)
         if with_prefix:
             self.volume_id_list_with_prefix.append(self.volume['id'])
         else:
             self.volume_id_list_without_prefix.append(
                 self.volume['id'])
-        self.volume_client.wait_for_volume_status(
+        self.admin_volume_client.wait_for_volume_status(
             self.volume['id'], 'available')
 
     @classmethod
@@ -80,13 +81,13 @@
         # volumes deletion
         vid_prefix = getattr(cls, 'volume_id_list_with_prefix', [])
         for volume_id in vid_prefix:
-            cls.volume_client.delete_volume(volume_id)
-            cls.volume_client.wait_for_resource_deletion(volume_id)
+            cls.admin_volume_client.delete_volume(volume_id)
+            cls.admin_volume_client.wait_for_resource_deletion(volume_id)
 
         vid_no_pre = getattr(cls, 'volume_id_list_without_prefix', [])
         for volume_id in vid_no_pre:
-            cls.volume_client.delete_volume(volume_id)
-            cls.volume_client.wait_for_resource_deletion(volume_id)
+            cls.admin_volume_client.delete_volume(volume_id)
+            cls.admin_volume_client.wait_for_resource_deletion(volume_id)
 
         # volume types deletion
         volume_type_id_list = getattr(cls, 'volume_type_id_list', [])
@@ -130,7 +131,7 @@
         # the multi backend feature has been enabled
         # if multi-backend is enabled: os-vol-attr:host should be like:
         # host@backend_name
-        _, volume = self.volume_client.get_volume(volume_id)
+        _, volume = self.admin_volume_client.get_volume(volume_id)
 
         volume1_host = volume['os-vol-host-attr:host']
         msg = ("multi-backend reporting incorrect values for volume %s" %
@@ -141,10 +142,10 @@
         # this test checks that the two volumes created at setUp don't
         # belong to the same backend (if they are, than the
         # volume backend distinction is not working properly)
-        _, volume = self.volume_client.get_volume(volume1_id)
+        _, volume = self.admin_volume_client.get_volume(volume1_id)
         volume1_host = volume['os-vol-host-attr:host']
 
-        _, volume = self.volume_client.get_volume(volume2_id)
+        _, volume = self.admin_volume_client.get_volume(volume2_id)
         volume2_host = volume['os-vol-host-attr:host']
 
         msg = ("volumes %s and %s were created in the same backend" %
diff --git a/tempest/api/volume/admin/test_volume_quotas.py b/tempest/api/volume/admin/test_volume_quotas.py
index ece4299..1189c8f 100644
--- a/tempest/api/volume/admin/test_volume_quotas.py
+++ b/tempest/api/volume/admin/test_volume_quotas.py
@@ -29,7 +29,6 @@
     @classmethod
     def resource_setup(cls):
         super(VolumeQuotasAdminTestJSON, cls).resource_setup()
-        cls.admin_volume_client = cls.os_adm.volumes_client
         cls.demo_tenant_id = cls.isolated_creds.get_primary_creds().tenant_id
 
     @test.attr(type='gate')
diff --git a/tempest/api/volume/admin/test_volumes_actions.py b/tempest/api/volume/admin/test_volumes_actions.py
index f85718b..3857fdb 100644
--- a/tempest/api/volume/admin/test_volumes_actions.py
+++ b/tempest/api/volume/admin/test_volumes_actions.py
@@ -26,9 +26,6 @@
         super(VolumesActionsTest, cls).resource_setup()
         cls.client = cls.volumes_client
 
-        # Create admin volume client
-        cls.admin_volume_client = cls.os_adm.volumes_client
-
         # Create a test shared volume for tests
         vol_name = utils.rand_name(cls.__name__ + '-Volume-')
 
diff --git a/tempest/api/volume/admin/test_volumes_backup.py b/tempest/api/volume/admin/test_volumes_backup.py
index 8b90b07..bf014a8 100644
--- a/tempest/api/volume/admin/test_volumes_backup.py
+++ b/tempest/api/volume/admin/test_volumes_backup.py
@@ -33,7 +33,6 @@
         if not CONF.volume_feature_enabled.backup:
             raise cls.skipException("Cinder backup feature disabled")
 
-        cls.volumes_adm_client = cls.os_adm.volumes_client
         cls.backups_adm_client = cls.os_adm.backups_client
         cls.volume = cls.create_volume()
 
@@ -47,8 +46,8 @@
         self.addCleanup(self.backups_adm_client.delete_backup,
                         backup['id'])
         self.assertEqual(backup_name, backup['name'])
-        self.volumes_adm_client.wait_for_volume_status(self.volume['id'],
-                                                       'available')
+        self.admin_volume_client.wait_for_volume_status(
+            self.volume['id'], 'available')
         self.backups_adm_client.wait_for_backup_status(backup['id'],
                                                        'available')
 
@@ -65,10 +64,10 @@
         _, restore = self.backups_adm_client.restore_backup(backup['id'])
 
         # Delete backup
-        self.addCleanup(self.volumes_adm_client.delete_volume,
+        self.addCleanup(self.admin_volume_client.delete_volume,
                         restore['volume_id'])
         self.assertEqual(backup['id'], restore['backup_id'])
         self.backups_adm_client.wait_for_backup_status(backup['id'],
                                                        'available')
-        self.volumes_adm_client.wait_for_volume_status(restore['volume_id'],
-                                                       'available')
+        self.admin_volume_client.wait_for_volume_status(
+            restore['volume_id'], 'available')
diff --git a/tempest/api/volume/base.py b/tempest/api/volume/base.py
index d78ddb6..8170cbf 100644
--- a/tempest/api/volume/base.py
+++ b/tempest/api/volume/base.py
@@ -174,14 +174,14 @@
                 raise cls.skipException(msg)
             cls.volume_qos_client = cls.os_adm.volume_qos_client
             cls.volume_types_client = cls.os_adm.volume_types_client
-            cls.volume_client = cls.os_adm.volumes_client
+            cls.admin_volume_client = cls.os_adm.volumes_client
         elif cls._api_version == 2:
             if not CONF.volume_feature_enabled.api_v2:
                 msg = "Volume API v2 is disabled"
                 raise cls.skipException(msg)
             cls.volume_qos_client = cls.os_adm.volume_qos_v2_client
             cls.volume_types_client = cls.os_adm.volume_types_v2_client
-            cls.volume_client = cls.os_adm.volumes_v2_client
+            cls.admin_volume_client = cls.os_adm.volumes_v2_client
 
     @classmethod
     def resource_cleanup(cls):
diff --git a/tempest/api_schema/response/compute/availability_zone.py b/tempest/api_schema/response/compute/availability_zone.py
index c1abc64..ab3e2ea 100644
--- a/tempest/api_schema/response/compute/availability_zone.py
+++ b/tempest/api_schema/response/compute/availability_zone.py
@@ -27,7 +27,7 @@
                     'properties': {
                         'available': {'type': 'boolean'},
                         'active': {'type': 'boolean'},
-                        'updated_at': {'type': 'string'}
+                        'updated_at': {'type': ['string', 'null']}
                     },
                     'required': ['available', 'active', 'updated_at']
                 }
diff --git a/tempest/api_schema/response/compute/services.py b/tempest/api_schema/response/compute/services.py
index eaba129..fc42b89 100644
--- a/tempest/api_schema/response/compute/services.py
+++ b/tempest/api_schema/response/compute/services.py
@@ -28,7 +28,7 @@
                         'state': {'type': 'string'},
                         'binary': {'type': 'string'},
                         'status': {'type': 'string'},
-                        'updated_at': {'type': 'string'},
+                        'updated_at': {'type': ['string', 'null']},
                         'disabled_reason': {'type': ['string', 'null']}
                     },
                     'required': ['id', 'zone', 'host', 'state', 'binary',
diff --git a/tempest/clients.py b/tempest/clients.py
index 19b4e11..4269812 100644
--- a/tempest/clients.py
+++ b/tempest/clients.py
@@ -291,7 +291,8 @@
                 self.telemetry_client = TelemetryClientXML(
                     self.auth_provider)
             self.token_client = TokenClientXML()
-            self.token_v3_client = V3TokenClientXML()
+            if CONF.identity_feature_enabled.api_v3:
+                self.token_v3_client = V3TokenClientXML()
             self.volume_availability_zone_client = \
                 VolumeAvailabilityZoneClientXML(self.auth_provider)
             self.volume_v2_availability_zone_client = \
@@ -307,8 +308,6 @@
             self.servers_v3_client = ServersV3ClientJSON(self.auth_provider)
             self.limits_client = LimitsClientJSON(self.auth_provider)
             self.images_client = ImagesClientJSON(self.auth_provider)
-            self.keypairs_v3_client = KeyPairsV3ClientJSON(
-                self.auth_provider)
             self.keypairs_client = KeyPairsClientJSON(self.auth_provider)
             self.keypairs_v3_client = KeyPairsV3ClientJSON(
                 self.auth_provider)
@@ -397,7 +396,8 @@
                 self.telemetry_client = TelemetryClientJSON(
                     self.auth_provider)
             self.token_client = TokenClientJSON()
-            self.token_v3_client = V3TokenClientJSON()
+            if CONF.identity_feature_enabled.api_v3:
+                self.token_v3_client = V3TokenClientJSON()
             self.negative_client = rest_client.NegativeRestClient(
                 self.auth_provider)
             self.negative_client.service = service
diff --git a/tempest/common/utils/linux/remote_client.py b/tempest/common/utils/linux/remote_client.py
index 89904b2..6a238d0 100644
--- a/tempest/common/utils/linux/remote_client.py
+++ b/tempest/common/utils/linux/remote_client.py
@@ -91,7 +91,7 @@
         return self.exec_command(cmd)
 
     def get_mac_address(self):
-        cmd = "/sbin/ifconfig | awk '/HWaddr/ {print $5}'"
+        cmd = "/bin/ip addr | awk '/ether/ {print $2}'"
         return self.exec_command(cmd)
 
     def get_ip_list(self):
diff --git a/tempest/tests/common/utils/linux/test_remote_client.py b/tempest/tests/common/utils/linux/test_remote_client.py
index 0db4cfa..e8650c5 100644
--- a/tempest/tests/common/utils/linux/test_remote_client.py
+++ b/tempest/tests/common/utils/linux/test_remote_client.py
@@ -117,7 +117,7 @@
 
         self.assertEqual(self.conn.get_mac_address(), macs)
         self._assert_exec_called_with(
-            "/sbin/ifconfig | awk '/HWaddr/ {print $5}'")
+            "/bin/ip addr | awk '/ether/ {print $2}'")
 
     def test_get_ip_list(self):
         ips = """1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue
diff --git a/tox.ini b/tox.ini
index 9f52f0d..f75e868 100644
--- a/tox.ini
+++ b/tox.ini
@@ -91,7 +91,7 @@
 setenv = {[tempestenv]setenv}
 deps = {[tempestenv]deps}
 commands =
-    run-tempest-stress '{posargs}'
+    run-tempest-stress {posargs}
 
 [testenv:venv]
 commands = {posargs}