HI Alfredo,
You have to configure onbar to use a storage manager like ISM (Informix Storage Manager) or Veritas Netbackup. It is actually those storage managers that you have to configure to backup your data to wherever you specify them to.
You canr read the ISM manual that comes with your informix product or in case you dont have it then you can download it from their web site.
Hope this helps
Luis Torres