diff --git a/rally-jobs/rally-neutron.yaml b/rally-jobs/rally-neutron.yaml
index 01cda77f87..0ba4b29e7a 100644
--- a/rally-jobs/rally-neutron.yaml
+++ b/rally-jobs/rally-neutron.yaml
@@ -560,6 +560,22 @@
       sla:
         failure_rate:
           max: 0
+    -
+      args:
+        size:
+          min: 1
+          max: 3
+      runner:
+        type: "constant"
+        times: 3
+        concurrency: 3
+      context:
+        users:
+          tenants: 2
+          users_per_tenant: 2
+      sla:
+        failure_rate:
+          max: 0
 
   CinderVolumes.create_and_list_volume:
     -
@@ -577,6 +593,23 @@
       sla:
         failure_rate:
           max: 0
+    -
+      args:
+        size:
+          min: 1
+          max: 3
+        detailed: True
+      runner:
+        type: "constant"
+        times: 3
+        concurrency: 3
+      context:
+        users:
+          tenants: 1
+          users_per_tenant: 1
+      sla:
+        failure_rate:
+          max: 0
     -
       args:
         size: 1
@@ -629,6 +662,22 @@
       sla:
         failure_rate:
           max: 0
+    -
+      args:
+        size:
+          min: 1
+          max: 3
+      runner:
+        type: "constant"
+        times: 2
+        concurrency: 2
+      context:
+        users:
+          tenants: 2
+          users_per_tenant: 2
+      sla:
+        failure_rate:
+          max: 0
     -
       args:
         size: 1
@@ -662,6 +711,25 @@
       sla:
         failure_rate:
           max: 0
+    -
+      args:
+        size:
+          min: 1
+          max: 2
+        new_size:
+          min: 3
+          max: 4
+      runner:
+        type: "constant"
+        times: 2
+        concurrency: 2
+      context:
+        users:
+          tenants: 1
+          users_per_tenant: 1
+      sla:
+        failure_rate:
+          max: 0
 
   CinderVolumes.create_from_volume_and_delete_volume:
     -
@@ -680,6 +748,24 @@
       sla:
         failure_rate:
           max: 0
+    -
+      args:
+        size:
+          min: 1
+          max: 2
+      runner:
+        type: "constant"
+        times: 2
+        concurrency: 2
+      context:
+        users:
+          tenants: 1
+          users_per_tenant: 1
+        volumes:
+          size: 1
+      sla:
+        failure_rate:
+          max: 0
 
   CinderVolumes.create_and_delete_snapshot:
     -
diff --git a/rally/benchmark/scenarios/cinder/utils.py b/rally/benchmark/scenarios/cinder/utils.py
index b28f55133f..d474f5519c 100644
--- a/rally/benchmark/scenarios/cinder/utils.py
+++ b/rally/benchmark/scenarios/cinder/utils.py
@@ -72,12 +72,19 @@ def _create_volume(self, size, **kwargs):
         Returns when the volume is actually created and is in the "Available"
         state.
 
-        :param size: int be size of volume in GB
+        :param size: int be size of volume in GB, or
+                     dictionary, must contain two values:
+                         min - minimum size volumes will be created as;
+                         max - maximum size volumes will be created as.
         :param kwargs: Other optional parameters to initialize the volume
         :returns: Created volume object
         """
         kwargs["display_name"] = kwargs.get("display_name",
                                             self._generate_random_name())
+
+        if isinstance(size, dict):
+            size = random.randint(size["min"], size["max"])
+
         volume = self.clients("cinder").volumes.create(size, **kwargs)
         # NOTE(msdubov): It is reasonable to wait 5 secs before starting to
         #                check whether the volume is ready => less API calls.
@@ -114,8 +121,16 @@ def _extend_volume(self, volume, new_size):
         Returns when the volume is actually extended.
 
         :param volume: volume object
-        :param new_size: new volume size in GB
+        :param new_size: new volume size in GB, or
+                         dictionary, must contain two values:
+                             min - minimum size volumes will be created as;
+                             max - maximum size volumes will be created as.
+                        Notice: should be bigger volume size
         """
+
+        if isinstance(new_size, dict):
+            new_size = random.randint(new_size["min"], new_size["max"])
+
         volume.extend(volume, new_size)
         volume = bench_utils.wait_for(
             volume,
diff --git a/rally/benchmark/scenarios/cinder/volumes.py b/rally/benchmark/scenarios/cinder/volumes.py
index 0595cc4788..b312ac5c5e 100755
--- a/rally/benchmark/scenarios/cinder/volumes.py
+++ b/rally/benchmark/scenarios/cinder/volumes.py
@@ -49,7 +49,10 @@ def create_and_list_volume(self, size, detailed=True,
         performance of the "cinder volume-list" command depending on
         the number of images owned by users.
 
-        :param size: volume size (in GB)
+        :param size: volume size (integer, in GB) or
+                     dictionary, must contain two values:
+                         min - minimum size volumes will be created as;
+                         max - maximum size volumes will be created as.
         :param detailed: determines whether the volume listing should contain
                          detailed information about all of them
         :param image: image to be used to create volume
@@ -91,7 +94,10 @@ def create_and_delete_volume(self, size, image=None,
         between volume creation and deletion (of random duration from
         [min_sleep, max_sleep]).
 
-        :param size: volume size (in GB)
+        :param size: volume size (integer, in GB) or
+                     dictionary, must contain two values:
+                         min - minimum size volumes will be created as;
+                         max - maximum size volumes will be created as.
         :param image: image to be used to create volume
         :param min_sleep: minimum sleep time between volume creation and
                           deletion (in seconds)
@@ -117,7 +123,10 @@ def create_volume(self, size, image=None, **kwargs):
         Good test to check how influence amount of active volumes on
         performance of creating new.
 
-        :param size: volume size (in GB)
+        :param size: volume size (integer, in GB) or
+                     dictionary, must contain two values:
+                         min - minimum size volumes will be created as;
+                         max - maximum size volumes will be created as.
         :param image: image to be used to create volume
         :param kwargs: optional args to create a volume
         """
@@ -134,8 +143,16 @@ def create_and_extend_volume(self, size, new_size, min_sleep=0,
         """Create and extend a volume and then delete it.
 
 
-        :param size: volume size (in GB)
-        :param new_size: volume new size (in GB) to extend
+        :param size: volume size (in GB) or
+                     dictionary, must contain two values:
+                         min - minimum size volumes will be created as;
+                         max - maximum size volumes will be created as.
+        :param new_size: volume new size (in GB) or
+                        dictionary, must contain two values:
+                             min - minimum size volumes will be created as;
+                             max - maximum size volumes will be created as.
+                        to extend.
+                        Notice: should be bigger volume size
         :param min_sleep: minimum sleep time between volume extension and
                           deletion (in seconds)
         :param max_sleep: maximum sleep time between volume extension and
@@ -159,8 +176,12 @@ def create_from_volume_and_delete_volume(self, size, min_sleep=0,
         parameters allow the scenario to simulate a pause between volume
         creation and deletion (of random duration from [min_sleep, max_sleep]).
 
-        :param size: volume size (in GB). Should be equal or bigger
-                     source volume size
+        :param size: volume size (in GB), or
+                     dictionary, must contain two values:
+                         min - minimum size volumes will be created as;
+                         max - maximum size volumes will be created as.
+                     Should be equal or bigger source volume size
+
         :param min_sleep: minimum sleep time between volume creation and
                           deletion (in seconds)
         :param max_sleep: maximum sleep time between volume creation and
@@ -210,7 +231,10 @@ def create_and_attach_volume(self, size, image, flavor, **kwargs):
         Simple test to create a VM and attach a volume, then
         detach the volume and delete volume/VM.
 
-        :param size: volume size (in GB)
+        :param size: volume size (integer, in GB) or
+                     dictionary, must contain two values:
+                         min - minimum size volumes will be created as;
+                         max - maximum size volumes will be created as.
         :param image: Glance image name to use for the VM
         :param flavor: VM flavor name
         :param kwargs: optional arguments for VM creation
@@ -268,8 +292,6 @@ def create_snapshot_and_attach_volume(self, volume_type=False,
                 volume_types.append(s.name)
             selected_type = random.choice(volume_types)
 
-        size = random.randint(size["min"], size["max"])
-
         volume = self._create_volume(size, volume_type=selected_type)
         snapshot = self._create_snapshot(volume.id, False, **kwargs)
 
@@ -320,7 +342,6 @@ def create_nested_snapshots_and_attach_volume(self,
         if nested_level is None:
             nested_level = {"min": 5, "max": 10}
 
-        size = random.randint(size["min"], size["max"])
         nested_level = random.randint(nested_level["min"], nested_level["max"])
 
         source_vol = self._create_volume(size)
@@ -373,7 +394,10 @@ def create_and_upload_volume_to_image(self, size, force=False,
                                           **kwargs):
         """Create and upload a volume to image.
 
-        :param size: volume size (integers, in GB)
+        :param size: volume size (integers, in GB), or
+                     dictionary, must contain two values:
+                         min - minimum size volumes will be created as;
+                         max - maximum size volumes will be created as.
         :param force: when set to True volume that is attached to an instance
                       could be uploaded to image
         :param container_format: image container format
diff --git a/samples/tasks/scenarios/cinder/create-and-attach-volume.json b/samples/tasks/scenarios/cinder/create-and-attach-volume.json
index b7049f346a..b30cc7a158 100644
--- a/samples/tasks/scenarios/cinder/create-and-attach-volume.json
+++ b/samples/tasks/scenarios/cinder/create-and-attach-volume.json
@@ -21,6 +21,28 @@
                     "users_per_tenant": 2
                 }
             }
+        },
+        {
+            "args": {
+                "size": {
+                    "min": 1,
+                    "max": 5
+                },
+                "flavor": {
+                    "name": "m1.nano"
+                }
+            },
+            "runner": {
+                "type": "constant",
+                "times": 5,
+                "concurrency": 1
+            },
+            "context": {
+                "users": {
+                    "tenants": 2,
+                    "users_per_tenant": 2
+                }
+            }
         }
     ]
 }
diff --git a/samples/tasks/scenarios/cinder/create-and-attach-volume.yaml b/samples/tasks/scenarios/cinder/create-and-attach-volume.yaml
index 62410e3186..aa4fe20c0e 100644
--- a/samples/tasks/scenarios/cinder/create-and-attach-volume.yaml
+++ b/samples/tasks/scenarios/cinder/create-and-attach-volume.yaml
@@ -15,3 +15,18 @@
         users:
           tenants: 2
           users_per_tenant: 2
+    -
+      args:
+        size:
+          min: 1
+          max: 5
+        flavor:
+            name: "m1.nano"
+      runner:
+        type: "constant"
+        times: 5
+        concurrency: 1
+      context:
+        users:
+          tenants: 2
+          users_per_tenant: 2
\ No newline at end of file
diff --git a/samples/tasks/scenarios/cinder/create-and-delete-volume.json b/samples/tasks/scenarios/cinder/create-and-delete-volume.json
index 28f7eec49b..9c096aacee 100644
--- a/samples/tasks/scenarios/cinder/create-and-delete-volume.json
+++ b/samples/tasks/scenarios/cinder/create-and-delete-volume.json
@@ -15,6 +15,25 @@
                     "users_per_tenant": 2
                 }
             }
+        },
+        {
+            "args": {
+                "size": {
+                    "min": 1,
+                    "max": 5
+                }
+            },
+            "runner": {
+                "type": "constant",
+                "times": 3,
+                "concurrency": 2
+            },
+            "context": {
+                "users": {
+                    "tenants": 2,
+                    "users_per_tenant": 2
+                }
+            }
         }
     ]
 }
diff --git a/samples/tasks/scenarios/cinder/create-and-delete-volume.yaml b/samples/tasks/scenarios/cinder/create-and-delete-volume.yaml
index 9e68e8c20c..957c86b5bf 100644
--- a/samples/tasks/scenarios/cinder/create-and-delete-volume.yaml
+++ b/samples/tasks/scenarios/cinder/create-and-delete-volume.yaml
@@ -11,3 +11,16 @@
         users:
           tenants: 2
           users_per_tenant: 2
+    -
+      args:
+        size:
+          min: 1
+          max: 5
+      runner:
+        type: "constant"
+        times: 3
+        concurrency: 2
+      context:
+        users:
+          tenants: 2
+          users_per_tenant: 2
\ No newline at end of file
diff --git a/samples/tasks/scenarios/cinder/create-and-extend-volume.json b/samples/tasks/scenarios/cinder/create-and-extend-volume.json
index 4794c96e28..18231757c1 100644
--- a/samples/tasks/scenarios/cinder/create-and-extend-volume.json
+++ b/samples/tasks/scenarios/cinder/create-and-extend-volume.json
@@ -16,6 +16,29 @@
                     "users_per_tenant": 1
                 }
             }
+        },
+        {
+            "args": {
+                "size": {
+                    "min": 1,
+                    "max": 5
+                },
+                "new_size": {
+                    "min": 6,
+                    "max": 10
+                }
+            },
+            "runner": {
+                "type": "constant",
+                "times": 2,
+                "concurrency": 2
+            },
+            "context": {
+                "users": {
+                    "tenants": 1,
+                    "users_per_tenant": 1
+                }
+            }
         }
     ]
 }
diff --git a/samples/tasks/scenarios/cinder/create-and-extend-volume.yaml b/samples/tasks/scenarios/cinder/create-and-extend-volume.yaml
index 781e692f0f..1caa2a3427 100644
--- a/samples/tasks/scenarios/cinder/create-and-extend-volume.yaml
+++ b/samples/tasks/scenarios/cinder/create-and-extend-volume.yaml
@@ -12,3 +12,19 @@
         users:
           tenants: 1
           users_per_tenant: 1
+    -
+      args:
+        size:
+          min: 1
+          max: 5
+        new_size:
+          min: 6
+          max: 10
+      runner:
+        type: "constant"
+        times: 2
+        concurrency: 2
+      context:
+        users:
+          tenants: 1
+          users_per_tenant: 1
\ No newline at end of file
diff --git a/samples/tasks/scenarios/cinder/create-and-list-volume.json b/samples/tasks/scenarios/cinder/create-and-list-volume.json
index 4a3cb6adbe..baacf7c239 100644
--- a/samples/tasks/scenarios/cinder/create-and-list-volume.json
+++ b/samples/tasks/scenarios/cinder/create-and-list-volume.json
@@ -16,6 +16,26 @@
                     "users_per_tenant": 1
                 }
             }
+        },
+        {
+            "args": {
+                "size": {
+                    "min": 1,
+                    "max": 5
+                },
+                "detailed": true
+            },
+            "runner": {
+                "type": "constant",
+                "times": 3,
+                "concurrency": 1
+            },
+            "context": {
+                "users": {
+                    "tenants": 1,
+                    "users_per_tenant": 1
+                }
+            }
         }
     ]
 }
diff --git a/samples/tasks/scenarios/cinder/create-and-list-volume.yaml b/samples/tasks/scenarios/cinder/create-and-list-volume.yaml
index 3ff7193c85..e209baa347 100644
--- a/samples/tasks/scenarios/cinder/create-and-list-volume.yaml
+++ b/samples/tasks/scenarios/cinder/create-and-list-volume.yaml
@@ -12,3 +12,17 @@
         users:
           tenants: 1
           users_per_tenant: 1
+    -
+      args:
+        size:
+          min: 1
+          max: 5
+        detailed: True
+      runner:
+        type: "constant"
+        times: 3
+        concurrency: 1
+      context:
+        users:
+          tenants: 1
+          users_per_tenant: 1
\ No newline at end of file
diff --git a/samples/tasks/scenarios/cinder/create-and-upload-volume-to-image.json b/samples/tasks/scenarios/cinder/create-and-upload-volume-to-image.json
index ee9344a97d..a721bdf259 100644
--- a/samples/tasks/scenarios/cinder/create-and-upload-volume-to-image.json
+++ b/samples/tasks/scenarios/cinder/create-and-upload-volume-to-image.json
@@ -19,6 +19,29 @@
                     "users_per_tenant": 2
                 }
             }
+        },
+        {
+            "args": {
+                "size": {
+                    "min": 1,
+                    "max": 5
+                },
+                "force": false,
+                "container_format": "bare",
+                "disk_format": "raw",
+                "do_delete": true
+            },
+            "runner": {
+                "type": "constant",
+                "times": 3,
+                "concurrency": 2
+            },
+            "context": {
+                "users": {
+                    "tenants": 2,
+                    "users_per_tenant": 2
+                }
+            }
         }
     ]
 }
diff --git a/samples/tasks/scenarios/cinder/create-and-upload-volume-to-image.yaml b/samples/tasks/scenarios/cinder/create-and-upload-volume-to-image.yaml
index 42f631e741..07b9348749 100644
--- a/samples/tasks/scenarios/cinder/create-and-upload-volume-to-image.yaml
+++ b/samples/tasks/scenarios/cinder/create-and-upload-volume-to-image.yaml
@@ -15,3 +15,20 @@
         users:
           tenants: 2
           users_per_tenant: 2
+    -
+      args:
+        size:
+          min: 1
+          max: 5
+        force: false
+        container_format: "bare"
+        disk_format: "raw"
+        do_delete: true
+      runner:
+        type: "constant"
+        times: 3
+        concurrency: 2
+      context:
+        users:
+          tenants: 2
+          users_per_tenant: 2
\ No newline at end of file
diff --git a/samples/tasks/scenarios/cinder/create-from-volume-and-delete-volume.json b/samples/tasks/scenarios/cinder/create-from-volume-and-delete-volume.json
index becd52db46..43a439c703 100644
--- a/samples/tasks/scenarios/cinder/create-from-volume-and-delete-volume.json
+++ b/samples/tasks/scenarios/cinder/create-from-volume-and-delete-volume.json
@@ -18,6 +18,28 @@
                     "size": 1
                 }
             }
+        },
+        {
+            "args": {
+                "size": {
+                    "min": 1,
+                    "max": 5
+                }
+            },
+            "runner": {
+                "type": "constant",
+                "times": 2,
+                "concurrency": 2
+            },
+            "context": {
+                "users": {
+                    "tenants": 1,
+                    "users_per_tenant": 1
+                },
+                "volumes": {
+                    "size": 1
+                }
+            }
         }
     ]
 }
\ No newline at end of file
diff --git a/samples/tasks/scenarios/cinder/create-from-volume-and-delete-volume.yaml b/samples/tasks/scenarios/cinder/create-from-volume-and-delete-volume.yaml
index 78285b15e3..7af1f22e29 100644
--- a/samples/tasks/scenarios/cinder/create-from-volume-and-delete-volume.yaml
+++ b/samples/tasks/scenarios/cinder/create-from-volume-and-delete-volume.yaml
@@ -7,6 +7,21 @@
         type: "constant"
         times: 2
         concurrency: 2
+      context:
+        users:
+          tenants: 1
+          users_per_tenant: 1
+        volumes:
+          size: 1
+    -
+      args:
+        size:
+          min: 1
+          max: 5
+      runner:
+        type: "constant"
+        times: 2
+        concurrency: 2
       context:
         users:
           tenants: 1
diff --git a/samples/tasks/scenarios/cinder/create-volume.json b/samples/tasks/scenarios/cinder/create-volume.json
index 41dfd23385..fb897d4284 100644
--- a/samples/tasks/scenarios/cinder/create-volume.json
+++ b/samples/tasks/scenarios/cinder/create-volume.json
@@ -15,6 +15,25 @@
                     "users_per_tenant": 2
                 }
             }
+        },
+        {
+            "args": {
+                "size": {
+                    "min": 1,
+                    "max": 5
+                }
+            },
+            "runner": {
+                "type": "constant",
+                "times": 3,
+                "concurrency": 2
+            },
+            "context": {
+                "users": {
+                    "tenants": 2,
+                    "users_per_tenant": 2
+                }
+            }
         }
     ]
 }
diff --git a/samples/tasks/scenarios/cinder/create-volume.yaml b/samples/tasks/scenarios/cinder/create-volume.yaml
index 319877296e..e63c10fcb3 100644
--- a/samples/tasks/scenarios/cinder/create-volume.yaml
+++ b/samples/tasks/scenarios/cinder/create-volume.yaml
@@ -11,3 +11,16 @@
         users:
           tenants: 2
           users_per_tenant: 2
+    -
+      args:
+        size:
+          min: 1
+          max: 5
+      runner:
+        type: "constant"
+        times: 3
+        concurrency: 2
+      context:
+        users:
+          tenants: 2
+          users_per_tenant: 2
\ No newline at end of file
diff --git a/tests/unit/benchmark/scenarios/cinder/test_utils.py b/tests/unit/benchmark/scenarios/cinder/test_utils.py
index 1cbbd72474..747a94aa13 100644
--- a/tests/unit/benchmark/scenarios/cinder/test_utils.py
+++ b/tests/unit/benchmark/scenarios/cinder/test_utils.py
@@ -77,6 +77,33 @@ def test__create_volume(self, mock_clients):
         self._test_atomic_action_timer(self.scenario.atomic_actions(),
                                        "cinder.create_volume")
 
+    @mock.patch("rally.benchmark.scenarios.cinder.utils.random")
+    @mock.patch(CINDER_UTILS + ".CinderScenario.clients")
+    def test__create_volume_with_size_range(self, mock_clients, mock_random):
+        CONF = cfg.CONF
+        volume = mock.Mock()
+        mock_clients("cinder").volumes.create.return_value = volume
+        mock_random.randint.return_value = 3
+
+        return_volume = self.scenario._create_volume(
+            size={"min": 1, "max": 5},
+            display_name="TestVolume")
+
+        mock_clients("cinder").volumes.create.assert_called_once_with(
+            3, display_name="TestVolume")
+
+        self.wait_for.mock.assert_called_once_with(
+            volume,
+            is_ready=self.res_is.mock(),
+            update_resource=self.gfm(),
+            timeout=CONF.benchmark.cinder_volume_create_timeout,
+            check_interval=CONF.benchmark.cinder_volume_create_poll_interval
+        )
+        self.res_is.mock.assert_has_calls([mock.call("available")])
+        self.assertEqual(self.wait_for.mock(), return_volume)
+        self._test_atomic_action_timer(self.scenario.atomic_actions(),
+                                       "cinder.create_volume")
+
     def test__delete_volume(self):
         cinder = mock.Mock()
         self.scenario._delete_volume(cinder)
@@ -90,6 +117,28 @@ def test__delete_volume(self):
         self._test_atomic_action_timer(self.scenario.atomic_actions(),
                                        "cinder.delete_volume")
 
+    @mock.patch("rally.benchmark.scenarios.cinder.utils.random")
+    @mock.patch(CINDER_UTILS + ".CinderScenario.clients")
+    def test__extend_volume_with_size_range(self, mock_clients, mock_random):
+        CONF = cfg.CONF
+        volume = mock.Mock()
+        mock_random.randint.return_value = 3
+        mock_clients("cinder").volumes.extend.return_value = volume
+
+        self.scenario._extend_volume(volume, new_size={"min": 1, "max": 5})
+
+        volume.extend.assert_called_once_with(volume, 3)
+        self.wait_for.mock.assert_called_once_with(
+            volume,
+            is_ready=self.res_is.mock(),
+            update_resource=self.gfm(),
+            timeout=CONF.benchmark.cinder_volume_create_timeout,
+            check_interval=CONF.benchmark.cinder_volume_create_poll_interval
+        )
+        self.res_is.mock.assert_has_calls([mock.call("available")])
+        self._test_atomic_action_timer(self.scenario.atomic_actions(),
+                                       "cinder.extend_volume")
+
     @mock.patch(CINDER_UTILS + ".CinderScenario.clients")
     def test__extend_volume(self, mock_clients):
         CONF = cfg.CONF