A typical question in the hour of coffee is that files can be backed up using RMAN and which are not. To simplify this post we will discuss which one can not do backup. We talked hereand version of 12c to have knowledge updated daily. Currently you can not backup the online redo and neither can make backup of pfiles. The remaining files can be done by everyone. Although there are others such as trace files, which could not, at least directly. Accordingly, they could charge as tables and save. Or from the ADRCI make management thereof.
HTH – Antonio NAVARRO