anchor.diff:  
   -define(TWO_RA, 2).
   -define(THREE_RA, 3).
  +-define(FOUR_RA, 4).
   
   -define(RACK_1, "R1").
   -define(RACK_2, "R2").
  
positive.code:     leo_redundant_manager_api:attach('node_12@127.0.0.1', ?RACK_1),
      leo_redundant_manager_api:attach('node_13@127.0.0.1', ?RACK_2),
      leo_redundant_manager_api:attach('node_14@127.0.0.1', ?RACK_3),
  
      ?debugVal(leo_redundant_manager_api:get_options()),
  
      leo_redundant_manager_api:create(?VER_CUR),
      leo_redundant_manager_api:create(?VER_PREV),
  
negative.code:      fun (Pid) ->
               teardown(Pid)
       end,
       [{"test rack-awareness functions #2",
         {timeout, 30000, fun suite_rack_awareness/0}}
       ]}.
  
  