diff --git a/models/plugins/yang/mano-types.yang b/models/plugins/yang/mano-types.yang
index 03c27a1..1013595 100644
--- a/models/plugins/yang/mano-types.yang
+++ b/models/plugins/yang/mano-types.yang
@@ -2029,7 +2029,7 @@
 
     }
 
-    leaf device_bus {
+    leaf device-bus {
       description "Type of disk-bus on which this disk is exposed to guest";
       type enumeration {
         enum ide;
@@ -2039,7 +2039,7 @@
       }
     }
 
-    leaf device_type {
+    leaf device-type {
       description "The type of device as exposed to guest";
       type enumeration {
           enum disk;
diff --git a/rwcal/plugins/vala/rwcal_openstack/rift/rwcal/openstack/openstack_drv.py b/rwcal/plugins/vala/rwcal_openstack/rift/rwcal/openstack/openstack_drv.py
index ffab014..c7ed119 100644
--- a/rwcal/plugins/vala/rwcal_openstack/rift/rwcal/openstack/openstack_drv.py
+++ b/rwcal/plugins/vala/rwcal_openstack/rift/rwcal/openstack/openstack_drv.py
@@ -223,8 +223,15 @@
         self.log.info("Discovering images")
         self.glance_cache['images'] = self._cache_populate(self.glance_image_list,
                                                            list())
+
         return self.glance_cache['images']
     
+    def _build_cinder_volume_list(self):
+        self.log.info("Discovering volumes")
+        vollist = self.cinder_volume_list()
+        self.cinder_cache['volumes'] = self._cache_populate(self.cinder_volume_list,
+                                                           list())
+        return self.cinder_cache['volumes']
                                                                  
     def build_nova_resource_cache(self):
         self.log.info("Building nova resource cache")
@@ -239,8 +246,8 @@
         self._build_neutron_subnet_prefix_list()
 
     def build_cinder_resource_cache(self):
-        pass
-
+        self.log.info("Building cinder resource cache")
+        self._build_cinder_volume_list()
 
     def build_glance_resource_cache(self):
         self.log.info("Building glance resource cache")
@@ -293,6 +300,13 @@
         else:
             return self._build_glance_image_list()
     
+    @property
+    def _cinder_volume_list(self):
+        if 'volumes' in self.cinder_cache:
+            return self.cinder_cache['volumes']
+        else:
+            return self._build_cinder_volume_list()
+
     def validate_account_creds(self):
         try:
             self.sess_drv.invalidate_auth_token()
diff --git a/rwcal/plugins/vala/rwcal_openstack/rift/rwcal/openstack/utils/compute.py b/rwcal/plugins/vala/rwcal_openstack/rift/rwcal/openstack/utils/compute.py
index 5538201..6a800de 100644
--- a/rwcal/plugins/vala/rwcal_openstack/rift/rwcal/openstack/utils/compute.py
+++ b/rwcal/plugins/vala/rwcal_openstack/rift/rwcal/openstack/utils/compute.py
@@ -173,6 +173,30 @@
                                      %(image_name, checksum))
         return image['id']
         
+    def resolve_volume_n_validate(self, volume_ref):
+        """
+        Resolve the volume reference
+        
+        Arguments:
+          volume_ref (string): Name of volume reference
+
+        Raises VolumeValidateError in case of Errors
+        """
+        
+        for vol in self.driver._cinder_volume_list:
+            voldict = vol.to_dict()
+            if voldict['display_name'] == volume_ref:
+                if 'status' in voldict and voldict['status'] == 'available':
+                    return voldict['id']
+                else:
+                    self.log.error("Volume %s not in available state. Current state: %s",
+                               volume_ref, voldict['status'])
+                    raise VolumeValidateError("Volume with name %s found in incorrect (%s) state"
+                                         %(volume_ref, vol['status']))
+
+        self.log.info("No volume found with matching name: %s ", volume_ref)
+        raise VolumeValidateError("No volume found with matching name: %s " %(volume_ref))
+        
     def make_vdu_volume_args(self, volume, vdu_params):
         """
         Arguments:
@@ -186,23 +210,24 @@
         """
         kwargs = dict()
 
-        if volume.has_field('volume_ref'):
-            self.log.error("Unsupported option <Volume Reference> found for volume: %s", volume.name)
-            raise VolumeValidateError("Unsupported option <Volume Reference> found for volume: %s"
-                                      %(volume.name))
-        
         kwargs['boot_index'] = volume.boot_priority
         if volume.has_field("image"):
             # Support image->volume
             kwargs['source_type'] = "image"
             kwargs['uuid'] = self.resolve_image_n_validate(volume.image, volume.image_checksum)
+            kwargs['delete_on_termination'] = True
+        elif "volume_ref" in volume:
+            # Support volume-ref->volume (only ref)
+            kwargs['source_type'] = "volume"
+            kwargs['uuid'] = self.resolve_volume_n_validate(volume.volume_ref)
+            kwargs['delete_on_termination'] = False
         else:
             # Support blank->volume
             kwargs['source_type'] = "blank"
+            kwargs['delete_on_termination'] = True
         kwargs['device_name'] = volume.name
         kwargs['destination_type'] = "volume"
         kwargs['volume_size'] = volume.size
-        kwargs['delete_on_termination'] = True
 
         if volume.has_field('device_type'):
             if volume.device_type in ['cdrom', 'disk']:
diff --git a/rwcal/test/test_rwcal_openstack.py b/rwcal/test/test_rwcal_openstack.py
index 654e1a3..339a2b4 100644
--- a/rwcal/test/test_rwcal_openstack.py
+++ b/rwcal/test/test_rwcal_openstack.py
@@ -973,6 +973,136 @@
 
         return vdu
 
+    def _get_rbsh_vdu_request_info(self, vlink_list):
+          """
+          Returns object of type RwcalYang.VDUInitParams
+          """
+          vdu = RwcalYang.VDUInitParams()
+          vdu.name = "cal_rbsh_vdu"
+          vdu.vm_flavor.memory_mb = 2048
+          vdu.vm_flavor.vcpu_count = 1
+          vdu.vm_flavor.storage_gb = 10
+          vdu.flavor_id = self._flavor.id
+          vdu.allocate_public_address = True
+          ctr = 0
+          for vl in vlink_list:
+             c1 = vdu.connection_points.add()
+             c1.name = "c_point" + str(ctr)
+             ctr += 1
+             c1.virtual_link_id = vl
+             c1.type_yang = 'VIRTIO'
+
+          vol0 = vdu.volumes.add()
+          vol0.name = "vda"
+          vol0.image = "mgmt.img"
+          vol0.size = 40
+          vol0.boot_priority = 0
+          vol0.device_bus = "virtio"
+          vol0.device_type = "disk"
+
+          vol1 = vdu.volumes.add()
+          vol1.name = "vdb"
+          vol1.image = "segstore.img"
+          vol1.size = 60
+          vol1.boot_priority = 1
+          vol1.device_bus = "virtio"
+          vol1.device_type = "disk"
+
+          # blank disk
+          vol2 = vdu.volumes.add()
+          vol2.name = "vdc"
+          vol2.size = 10
+          vol2.boot_priority = 2
+          vol2.device_bus = "virtio"
+          vol2.device_type = "disk"
+
+          # existing volume disk
+          vol3 = vdu.volumes.add()
+          vol3.name = "vdd"
+          vol3.size = 10
+          vol3.volume_ref = "volume-ref1"
+          vol3.boot_priority = 3
+          vol3.device_bus = "virtio"
+          vol3.device_type = "disk"
+          return vdu
+
+    @unittest.skip("Skipping test_create_rbsh_vdu")
+    def test_create_rbsh_vdu(self):
+          """
+          Test to create VDU with mgmt port and 3 additional connection points
+          """
+          logger.info("Openstack-CAL-Test: Test Create Virtual Link API")
+          vlink_list = []
+          for ctr in range(3):
+             vlink = RwcalYang.VirtualLinkReqParams()
+             vlink.name = 'rift.cal.virtual_link' + str(ctr)
+             vlink.subnet = '11.0.{}.0/24'.format(str(1 + ctr))
+
+             rc, rsp = self.cal.create_virtual_link(self._acct, vlink)
+             self.assertEqual(rc.status, RwStatus.SUCCESS)
+             logger.info("Openstack-CAL-Test: Created virtual_link with Id: %s" %rsp)
+             vlink_id = rsp
+
+             #Check if virtual_link create is successful
+             rc, rsp = self.cal.get_virtual_link(self._acct, rsp)
+             self.assertEqual(rc, RwStatus.SUCCESS)
+             self.assertEqual(rsp.virtual_link_id, vlink_id)
+             vlink_list.append(vlink_id)
+
+
+          # Now create VDU
+          vdu_req = self._get_rbsh_vdu_request_info(vlink_list)
+          logger.info("Openstack-CAL-Test: Test Create RB steelhead VDU API (w/ mgmt port) and 3 CPs")
+
+          rc, rsp = self.cal.create_vdu(self._acct, vdu_req)
+          logger.debug("Openstack-CAL-Test: rc %s rsp %s" % (rc, rsp))
+          self.assertEqual(rc.status, RwStatus.SUCCESS)
+          logger.info("Openstack-CAL-Test: Created vdu with Id: %s" %rsp)
+
+          test_vdu_id = rsp
+
+          ## Check if VDU get is successful
+          rc, rsp = self.cal.get_vdu(self._acct, test_vdu_id)
+          logger.debug("Get VDU response %s", rsp)
+          self.assertEqual(rsp.vdu_id, test_vdu_id)
+
+          ### Wait until vdu_state is active
+          logger.debug("Waiting 10 secs")
+          time.sleep(10)
+          #{'name': 'dp0vhost7', 'connection_point_id': 'dp0vhost7', 'state': 'active', 'virtual_link_id': 'rift.cal.virtual_link', 'ip_address': '192.168.100.6'}
+          vdu_state = 'inactive'
+          cp_state = 'inactive'
+          for i in range(15):
+              rc, rsp = self.cal.get_vdu(self._acct, test_vdu_id)
+              self.assertEqual(rc, RwStatus.SUCCESS)
+              logger.info("Openstack-CAL-Test: Iter %d VDU with id : %s. Reached State :  %s, mgmt ip %s" %(i, test_vdu_id, rsp.state, rsp.management_ip))
+              if (rsp.state == 'active') and ('management_ip' in rsp) and ('public_ip' in rsp):
+                  vdu_state = 'active'
+                  #'connection_points': [{'name': 'dp0vhost7', 'connection_point_id': 'dp0vhost7', 'state': 'active', 'virtual_link_id': 'rift.cal.virtual_link', 'ip_address': '192.168.100.6'}]
+                  for cp in rsp.connection_points:
+                      logger.info("Openstack-CAL-Test: Iter %d VDU with id : %s. Reached State :  %s CP state %s" %(i, test_vdu_id, rsp.state, cp))
+              logger.debug("Waiting another 5 secs")
+              time.sleep(5)
+
+          self.assertEqual(rc, RwStatus.SUCCESS)
+          self.assertEqual(rsp.state, 'active')
+          self.assertEqual(vdu_state, 'active')
+          logger.info("Openstack-CAL-Test: VDU with id : %s reached expected state  : %s IP: %s" %(test_vdu_id, rsp.state, rsp.management_ip))
+          logger.info("Openstack-CAL-Test: VDUInfo: %s" %(rsp))
+          logger.info("Waiting for 30 secs before deletion")
+          time.sleep(30)
+
+          ### Check vdu list as well
+          rc, rsp = self.cal.get_vdu_list(self._acct)
+          self.assertEqual(rc, RwStatus.SUCCESS)
+          found = False
+          logger.debug("Get VDU response %s", rsp)
+          for vdu in rsp.vdu_info_list:
+              if vdu.vdu_id == test_vdu_id:
+                 found = True
+          self.assertEqual(found, True)
+          logger.info("Openstack-CAL-Test: Passed VDU list" )
+
     #@unittest.skip("Skipping test_create_delete_virtual_link_and_vdu")
     def test_create_delete_virtual_link_and_vdu(self):
         """
@@ -1027,10 +1157,10 @@
         vlink_id2= rsp
 
         ### Now exercise the modify_vdu_api
-        vdu_modify = self._get_vdu_modify_request_info(vdu_id, vlink_id2)
-        rc = self.cal.modify_vdu(self._acct, vdu_modify)
-        self.assertEqual(rc, RwStatus.SUCCESS)
-        logger.info("Openstack-CAL-Test: Modified vdu with Id: %s" %vdu_id)
+        #vdu_modify = self._get_vdu_modify_request_info(vdu_id, vlink_id2)
+        #rc = self.cal.modify_vdu(self._acct, vdu_modify)
+        #self.assertEqual(rc, RwStatus.SUCCESS)
+        #logger.info("Openstack-CAL-Test: Modified vdu with Id: %s" %vdu_id)
 
         ### Lets delete the VDU
         self.cal.delete_vdu(self._acct, vdu_id)