diff --git a/tempest/api/compute/images/test_images.py b/tempest/api/compute/images/test_images.py
index 3754637..154d717 100644
--- a/tempest/api/compute/images/test_images.py
+++ b/tempest/api/compute/images/test_images.py
@@ -42,11 +42,9 @@
 
     @test.idempotent_id('aa06b52b-2db5-4807-b218-9441f75d74e3')
     def test_delete_saving_image(self):
-        snapshot_name = data_utils.rand_name('test-snap')
         server = self.create_test_server(wait_until='ACTIVE')
         self.addCleanup(self.servers_client.delete_server, server['id'])
         image = self.create_image_from_server(server['id'],
-                                              name=snapshot_name,
                                               wait_until='SAVING')
         self.client.delete_image(image['id'])
         msg = ('The image with ID {image_id} failed to be deleted'
diff --git a/tempest/api/compute/servers/test_create_server.py b/tempest/api/compute/servers/test_create_server.py
index d4c2648..a48c17b 100644
--- a/tempest/api/compute/servers/test_create_server.py
+++ b/tempest/api/compute/servers/test_create_server.py
@@ -264,37 +264,23 @@
         flavor_base = self.flavors_client.show_flavor(
             self.flavor_ref)['flavor']
 
-        def create_flavor_with_extra_specs():
-            flavor_with_eph_disk_name = data_utils.rand_name('eph_flavor')
+        def create_flavor_with_ephemeral(ephem_disk):
+            if ephem_disk > 0:
+                flavor_name = data_utils.rand_name('eph_flavor')
+            else:
+                flavor_name = data_utils.rand_name('no_eph_flavor')
             flavor_with_eph_disk_id = data_utils.rand_int_id(start=1000)
 
             ram = flavor_base['ram']
             vcpus = flavor_base['vcpus']
             disk = flavor_base['disk']
 
-            # Create a flavor with extra specs
+            # Create a flavor with ephemeral disk
             flavor = (self.flavor_client.
-                      create_flavor(name=flavor_with_eph_disk_name,
+                      create_flavor(name=flavor_name,
                                     ram=ram, vcpus=vcpus, disk=disk,
                                     id=flavor_with_eph_disk_id,
-                                    ephemeral=1))['flavor']
-            self.addCleanup(flavor_clean_up, flavor['id'])
-
-            return flavor['id']
-
-        def create_flavor_without_extra_specs():
-            flavor_no_eph_disk_name = data_utils.rand_name('no_eph_flavor')
-            flavor_no_eph_disk_id = data_utils.rand_int_id(start=1000)
-
-            ram = flavor_base['ram']
-            vcpus = flavor_base['vcpus']
-            disk = flavor_base['disk']
-
-            # Create a flavor without extra specs
-            flavor = (self.flavor_client.
-                      create_flavor(name=flavor_no_eph_disk_name,
-                                    ram=ram, vcpus=vcpus, disk=disk,
-                                    id=flavor_no_eph_disk_id))['flavor']
+                                    ephemeral=ephem_disk))['flavor']
             self.addCleanup(flavor_clean_up, flavor['id'])
 
             return flavor['id']
@@ -303,8 +289,8 @@
             self.flavor_client.delete_flavor(flavor_id)
             self.flavor_client.wait_for_resource_deletion(flavor_id)
 
-        flavor_with_eph_disk_id = create_flavor_with_extra_specs()
-        flavor_no_eph_disk_id = create_flavor_without_extra_specs()
+        flavor_with_eph_disk_id = create_flavor_with_ephemeral(ephem_disk=1)
+        flavor_no_eph_disk_id = create_flavor_with_ephemeral(ephem_disk=0)
 
         admin_pass = self.image_ssh_password
 
@@ -314,7 +300,7 @@
             adminPass=admin_pass,
             flavor=flavor_no_eph_disk_id)
 
-        # Get partition number of server without extra specs.
+        # Get partition number of server without ephemeral disk.
         server_no_eph_disk = self.client.show_server(
             server_no_eph_disk['id'])['server']
         linux_client = remote_client.RemoteClient(
diff --git a/tempest/api/compute/servers/test_multiple_create.py b/tempest/api/compute/servers/test_multiple_create.py
index 4dd26af..9fc30f9 100644
--- a/tempest/api/compute/servers/test_multiple_create.py
+++ b/tempest/api/compute/servers/test_multiple_create.py
@@ -14,26 +14,16 @@
 #    under the License.
 
 from tempest.api.compute import base
-from tempest.common.utils import data_utils
 from tempest import test
 
 
 class MultipleCreateTestJSON(base.BaseV2ComputeTest):
-    _name = 'multiple-create-test'
-
-    def _create_multiple_servers(self, **kwargs):
-        # This is the right way to create_multiple servers and manage to get
-        # the created servers into the servers list to be cleaned up after all.
-        kwargs['name'] = kwargs.get('name', data_utils.rand_name(self._name))
-        body = self.create_test_server(**kwargs)
-
-        return body
 
     @test.idempotent_id('61e03386-89c3-449c-9bb1-a06f423fd9d1')
     def test_multiple_create(self):
-        body = self._create_multiple_servers(wait_until='ACTIVE',
-                                             min_count=1,
-                                             max_count=2)
+        body = self.create_test_server(wait_until='ACTIVE',
+                                       min_count=1,
+                                       max_count=2)
         # NOTE(maurosr): do status response check and also make sure that
         # reservation_id is not in the response body when the request send
         # contains return_reservation_id=False
@@ -41,8 +31,8 @@
 
     @test.idempotent_id('864777fb-2f1e-44e3-b5b9-3eb6fa84f2f7')
     def test_multiple_create_with_reservation_return(self):
-        body = self._create_multiple_servers(wait_until='ACTIVE',
-                                             min_count=1,
-                                             max_count=2,
-                                             return_reservation_id=True)
+        body = self.create_test_server(wait_until='ACTIVE',
+                                       min_count=1,
+                                       max_count=2,
+                                       return_reservation_id=True)
         self.assertIn('reservation_id', body)
diff --git a/tempest/api/network/test_dhcp_ipv6.py b/tempest/api/network/test_dhcp_ipv6.py
index 4bc4262..84c48ec 100644
--- a/tempest/api/network/test_dhcp_ipv6.py
+++ b/tempest/api/network/test_dhcp_ipv6.py
@@ -348,9 +348,7 @@
 
     def _create_subnet_router(self, kwargs):
         subnet = self.create_subnet(self.network, **kwargs)
-        router = self.create_router(
-            router_name=data_utils.rand_name("routerv6-"),
-            admin_state_up=True)
+        router = self.create_router(admin_state_up=True)
         port = self.create_router_interface(router['id'],
                                             subnet['id'])
         body = self.ports_client.show_port(port['port_id'])
diff --git a/tempest/api/network/test_floating_ips_negative.py b/tempest/api/network/test_floating_ips_negative.py
index 963d99d..7ffc30f 100644
--- a/tempest/api/network/test_floating_ips_negative.py
+++ b/tempest/api/network/test_floating_ips_negative.py
@@ -15,7 +15,6 @@
 #    under the License.
 
 from tempest.api.network import base
-from tempest.common.utils import data_utils
 from tempest import config
 from tempest.lib import exceptions as lib_exc
 from tempest import test
@@ -45,7 +44,7 @@
         # Create a network with a subnet connected to a router.
         cls.network = cls.create_network()
         cls.subnet = cls.create_subnet(cls.network)
-        cls.router = cls.create_router(data_utils.rand_name('router'))
+        cls.router = cls.create_router()
         cls.create_router_interface(cls.router['id'], cls.subnet['id'])
         cls.port = cls.create_port(cls.network)
 
diff --git a/tempest/api/network/test_ports.py b/tempest/api/network/test_ports.py
index 2979f7d..15d289d 100644
--- a/tempest/api/network/test_ports.py
+++ b/tempest/api/network/test_ports.py
@@ -199,7 +199,7 @@
         self.addCleanup(self.networks_client.delete_network, network['id'])
         subnet = self.create_subnet(network)
         self.addCleanup(self.subnets_client.delete_subnet, subnet['id'])
-        router = self.create_router(data_utils.rand_name('router-'))
+        router = self.create_router()
         self.addCleanup(self.routers_client.delete_router, router['id'])
         port = self.ports_client.create_port(network_id=network['id'])
         # Add router interface to port created above
diff --git a/tempest/api/network/test_routers_negative.py b/tempest/api/network/test_routers_negative.py
index 354e6d1..b3983de 100644
--- a/tempest/api/network/test_routers_negative.py
+++ b/tempest/api/network/test_routers_negative.py
@@ -134,7 +134,5 @@
     @test.attr(type=['negative'])
     @test.idempotent_id('4990b055-8fc7-48ab-bba7-aa28beaad0b9')
     def test_router_create_tenant_distributed_returns_forbidden(self):
-        self.assertRaises(lib_exc.Forbidden,
-                          self.create_router,
-                          data_utils.rand_name('router'),
+        self.assertRaises(lib_exc.Forbidden, self.create_router,
                           distributed=True)
diff --git a/tempest/api/volume/admin/test_snapshots_actions.py b/tempest/api/volume/admin/test_snapshots_actions.py
index 1468e90..5af83b3 100644
--- a/tempest/api/volume/admin/test_snapshots_actions.py
+++ b/tempest/api/volume/admin/test_snapshots_actions.py
@@ -14,7 +14,6 @@
 #    under the License.
 
 from tempest.api.volume import base
-from tempest.common.utils import data_utils
 from tempest import config
 from tempest import test
 
@@ -38,16 +37,10 @@
         super(SnapshotsActionsV2Test, cls).resource_setup()
 
         # Create a test shared volume for tests
-        vol_name = data_utils.rand_name(cls.__name__ + '-Volume')
-        cls.name_field = cls.special_fields['name_field']
-        params = {cls.name_field: vol_name}
-        cls.volume = cls.create_volume(**params)
+        cls.volume = cls.create_volume()
 
         # Create a test shared snapshot for tests
-        snap_name = data_utils.rand_name(cls.__name__ + '-Snapshot')
-        params = {cls.name_field: snap_name}
-        cls.snapshot = cls.create_snapshot(
-            volume_id=cls.volume['id'], **params)
+        cls.snapshot = cls.create_snapshot(volume_id=cls.volume['id'])
 
     def tearDown(self):
         # Set snapshot's status to available after test
diff --git a/tempest/api/volume/base.py b/tempest/api/volume/base.py
index b788d54..2082f50 100644
--- a/tempest/api/volume/base.py
+++ b/tempest/api/volume/base.py
@@ -113,13 +113,12 @@
         if 'size' not in kwargs:
             kwargs['size'] = CONF.volume.volume_size
 
-        name = data_utils.rand_name(cls.__name__ + '-Volume')
-
         name_field = cls.special_fields['name_field']
+        if name_field not in kwargs:
+            name = data_utils.rand_name(cls.__name__ + '-Volume')
+            kwargs[name_field] = name
 
-        kwargs[name_field] = name
         volume = cls.volumes_client.create_volume(**kwargs)['volume']
-
         cls.volumes.append(volume)
         waiters.wait_for_volume_status(cls.volumes_client,
                                        volume['id'], 'available')
@@ -128,6 +127,11 @@
     @classmethod
     def create_snapshot(cls, volume_id=1, **kwargs):
         """Wrapper utility that returns a test snapshot."""
+        name_field = cls.special_fields['name_field']
+        if name_field not in kwargs:
+            name = data_utils.rand_name(cls.__name__ + '-Snapshot')
+            kwargs[name_field] = name
+
         snapshot = cls.snapshots_client.create_snapshot(
             volume_id=volume_id, **kwargs)['snapshot']
         cls.snapshots.append(snapshot)
diff --git a/tempest/api/volume/test_volumes_snapshots.py b/tempest/api/volume/test_volumes_snapshots.py
index 7be31d1..3c05d3e 100644
--- a/tempest/api/volume/test_volumes_snapshots.py
+++ b/tempest/api/volume/test_volumes_snapshots.py
@@ -64,9 +64,7 @@
     @test.idempotent_id('2a8abbe4-d871-46db-b049-c41f5af8216e')
     def test_snapshot_create_get_list_update_delete(self):
         # Create a snapshot
-        s_name = data_utils.rand_name(self.__class__.__name__ + '-snap')
-        params = {self.name_field: s_name}
-        snapshot = self.create_snapshot(self.volume_origin['id'], **params)
+        snapshot = self.create_snapshot(self.volume_origin['id'])
 
         # Get the snap and check for some of its details
         snap_get = self.snapshots_client.show_snapshot(