PowerMax docs -  Include a note in cinder backup section
Note to highlight that the rpc_response_timeout will need
to be increased, especially in replication scenarios where
the create operation will take longer.
@@ -3056,6 +3056,13 @@ information on setup, configuration and usage please see the official
OpenStack `volume backup`_ documentation and related `volume backup CLI`_
guide.
+.. note::
+
+ ``rpc_response_timeout`` may need to be increased significantly in volume
+ backup operations especially in replication scenarios where the creation
+ operation will be longer. For more information on ``rpc_response_timeout``
+ please refer to `Live migration configuration`_
+
Port group & port load balancing
--------------------------------
