anchor.diff:                end,
       gen_server:call(?MODULE, {get_server_node_alias, NewNode}, ?DEF_TIMEOUT).
   
  +%% @doc Syncronize RING between manager and storage/gateway
  +%%
  +-spec(sync_ring(Node) ->
  +             ok when Node::atom()).
  +sync_ring(Node) ->
  +    gen_server:cast(?MODULE, {sync_ring, Node}).
  +
   
   %%--------------------------------------------------------------------
   %% GEN_SERVER CALLBACKS
  
positive.code:     end.
  
  
  %% @doc Returns true if exists a process, false otherwise
  %%
  -spec(is_exists_proc(list(), pid(), atom()) ->
  
negative.code: 
  handle_cast({get_remote_node_proc, ServerType, Node}, State) ->
      _ = get_remote_node_proc_fun(ServerType, Node),
      {noreply, State};
  
  handle_cast({sync_ring, Node}, State) ->
      case sync_ring_fun(Node) of
          ok ->
              ok;
          _Other ->
              case leo_misc:node_existence(Node) of
                  true ->
                      timer:apply_after(
                        ?APPLY_AFTER_TIME, ?MODULE, sync_ring, [Node]);
                  false ->
                      void
              end
      end,
      {noreply, State};
  
  handle_cast(_Message, State) ->
  