diff --git a/rally_openstack/scenarios/nova/servers.py b/rally_openstack/scenarios/nova/servers.py
index 09d6e0fc..55201d83 100644
--- a/rally_openstack/scenarios/nova/servers.py
+++ b/rally_openstack/scenarios/nova/servers.py
@@ -187,7 +187,7 @@ class BootServerFromVolumeAndDelete(utils.NovaScenario,
         """
         volume = self.cinder.create_volume(volume_size, imageRef=image,
                                            volume_type=volume_type)
-        block_device_mapping = {"vda": "%s:::1" % volume.id}
+        block_device_mapping = {"vda": "%s:::0" % volume.id}
         server = self._boot_server(None, flavor,
                                    block_device_mapping=block_device_mapping,
                                    **kwargs)
@@ -356,7 +356,7 @@ class BootServerFromVolume(utils.NovaScenario, cinder_utils.CinderBasic):
         """
         volume = self.cinder.create_volume(volume_size, imageRef=image,
                                            volume_type=volume_type)
-        block_device_mapping = {"vda": "%s:::1" % volume.id}
+        block_device_mapping = {"vda": "%s:::0" % volume.id}
         self._boot_server(None, flavor, auto_assign_nic=auto_assign_nic,
                           block_device_mapping=block_device_mapping,
                           **kwargs)
@@ -591,7 +591,7 @@ class BootServerFromVolumeAndResize(utils.NovaScenario,
         volume = self.cinder.create_volume(volume_size, imageRef=image,
                                            **create_volume_kwargs)
         boot_server_kwargs["block_device_mapping"] = {
-            "vda": "%s:::1" % volume.id}
+            "vda": "%s:::0" % volume.id}
 
         server = self._boot_server(None, flavor, **boot_server_kwargs)
         self.sleep_between(min_sleep, max_sleep)
@@ -766,7 +766,7 @@ class BootServerFromVolumeAndLiveMigrate(utils.NovaScenario,
         """
         volume = self.cinder.create_volume(volume_size, imageRef=image,
                                            volume_type=volume_type)
-        block_device_mapping = {"vda": "%s:::1" % volume.id}
+        block_device_mapping = {"vda": "%s:::0" % volume.id}
         server = self._boot_server(None, flavor,
                                    block_device_mapping=block_device_mapping,
                                    **kwargs)
diff --git a/tests/unit/scenarios/nova/test_servers.py b/tests/unit/scenarios/nova/test_servers.py
index 8526a103..2ea01694 100644
--- a/tests/unit/scenarios/nova/test_servers.py
+++ b/tests/unit/scenarios/nova/test_servers.py
@@ -364,7 +364,7 @@ class NovaServersTestCase(test.ScenarioTestCase):
                                                      volume_type=None)
         scenario._boot_server.assert_called_once_with(
             None, 0, auto_assign_nic=False,
-            block_device_mapping={"vda": "volume_id:::1"},
+            block_device_mapping={"vda": "volume_id:::0"},
             fakearg="f")
 
     @mock.patch("rally_openstack.services.storage.block.BlockStorage")
@@ -387,7 +387,7 @@ class NovaServersTestCase(test.ScenarioTestCase):
                                                      volume_type=None)
         scenario._boot_server.assert_called_once_with(
             None, 0,
-            block_device_mapping={"vda": "volume_id:::1"},
+            block_device_mapping={"vda": "volume_id:::0"},
             fakearg="f")
         scenario.sleep_between.assert_called_once_with(10, 20)
         scenario._delete_server.assert_called_once_with(fake_server,
@@ -685,7 +685,7 @@ class NovaServersTestCase(test.ScenarioTestCase):
         cinder.create_volume.assert_called_once_with(10, imageRef="img")
         scenario._boot_server.assert_called_once_with(
             None, flavor,
-            block_device_mapping={"vda": "volume_id:::1"})
+            block_device_mapping={"vda": "volume_id:::0"})
         scenario.sleep_between.assert_called_once_with(10, 20)
         scenario._resize.assert_called_once_with(fake_server, to_flavor)
 
@@ -745,7 +745,7 @@ class NovaServersTestCase(test.ScenarioTestCase):
 
         scenario._boot_server.assert_called_once_with(
             None, 0,
-            block_device_mapping={"vda": "volume_id:::1"},
+            block_device_mapping={"vda": "volume_id:::0"},
             fakearg="f")
 
         scenario.sleep_between.assert_called_once_with(10, 20)