diff --git a/os_brick/initiator/connectors/rbd.py b/os_brick/initiator/connectors/rbd.py
index 7c6338f50..23ca1a12d 100644
--- a/os_brick/initiator/connectors/rbd.py
+++ b/os_brick/initiator/connectors/rbd.py
@@ -180,12 +180,20 @@ class RBDConnector(base.BaseLinuxConnector):
             # NOTE(e0ne): map volume to a block device
             # via the rbd kernel module.
             pool, volume = connection_properties['name'].split('/')
-            cmd = ['rbd', 'map', volume, '--pool', pool]
-            cmd += self._get_rbd_args(connection_properties)
-            self._execute(*cmd, root_helper=self._root_helper,
-                          run_as_root=True)
+            rbd_dev_path = RBDConnector.get_rbd_device_name(pool, volume)
+            if (not os.path.islink(rbd_dev_path) or
+                    not os.path.exists(os.path.realpath(rbd_dev_path))):
+                cmd = ['rbd', 'map', volume, '--pool', pool]
+                cmd += self._get_rbd_args(connection_properties)
+                self._execute(*cmd, root_helper=self._root_helper,
+                              run_as_root=True)
+            else:
+                LOG.debug('volume %(vol)s is already mapped to local'
+                          ' device %(dev)s',
+                          {'vol': volume,
+                           'dev': os.path.realpath(rbd_dev_path)})
 
-            return {'path': RBDConnector.get_rbd_device_name(pool, volume),
+            return {'path': rbd_dev_path,
                     'type': 'block'}
 
         rbd_handle = self._get_rbd_handle(connection_properties)
diff --git a/os_brick/tests/initiator/connectors/test_rbd.py b/os_brick/tests/initiator/connectors/test_rbd.py
index 1f11ca6ea..69b1b8f3f 100644
--- a/os_brick/tests/initiator/connectors/test_rbd.py
+++ b/os_brick/tests/initiator/connectors/test_rbd.py
@@ -186,6 +186,31 @@ class RBDConnectorTestCase(test_connector.ConnectorTestCase):
                          'type': 'block'}
         self.assertEqual(expected_info, device_info)
 
+    @mock.patch.object(priv_rootwrap, 'execute', return_value=None)
+    @mock.patch('os.path.exists')
+    @mock.patch('os.path.islink')
+    @mock.patch('os.path.realpath')
+    def test_connect_local_volume_dev_exist(self, mock_realpath, mock_islink,
+                                            mock_exists, mock_execute):
+        rbd_connector = rbd.RBDConnector(None, do_local_attach=True)
+        conn = {'name': 'pool/image',
+                'auth_username': 'fake_user',
+                'hosts': ['192.168.10.2'],
+                'ports': ['6789']}
+        mock_realpath.return_value = '/dev/rbd0'
+        mock_islink.return_value = True
+        mock_exists.return_value = True
+        device_info = rbd_connector.connect_volume(conn)
+        execute_call1 = mock.call('which', 'rbd')
+        cmd = ['rbd', 'map', 'image', '--pool', 'pool', '--id', 'fake_user',
+               '--mon_host', '192.168.10.2:6789']
+        execute_call2 = mock.call(*cmd, root_helper=None, run_as_root=True)
+        mock_execute.assert_has_calls([execute_call1])
+        self.assertFalse(execute_call2 in mock_execute.mock_calls)
+        expected_info = {'path': '/dev/rbd/pool/image',
+                         'type': 'block'}
+        self.assertEqual(expected_info, device_info)
+
     @mock.patch.object(priv_rootwrap, 'execute', return_value=None)
     def test_connect_local_volume_without_mons(self, mock_execute):
         rbd_connector = rbd.RBDConnector(None, do_local_attach=True)