According to the fruit man page, there is a configuration variable, fruit:resource, which affects behavior relating to storage of resource fork data. Despite the man page spelling of "resource", it is spelled "ressource" in the code. See vfs_fruit.c:1313 below.

The downside of this inconsistency is that the variable doesn't appear to affect behavior as functionality remains in the default mode.

4.5.1 source3/modules/vfs_fruit.c:

  1300  static int init_fruit_config(vfs_handle_struct *handle)
  1301  {
  1302          struct fruit_config_data *config;
  1303          int enumval;
  1304  

...

  1311  
  1312          enumval = lp_parm_enum(SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
  1313                                 "ressource", fruit_rsrc, FRUIT_RSRC_ADFILE);
  1314          if (enumval == -1) {
  1315                  DEBUG(1, ("value for %s: ressource type unknown\n",
  1316                            FRUIT_PARAM_TYPE_NAME));
  1317                  return -1;
  1318          }
  1319          config->rsrc = (enum fruit_rsrc)enumval;