RMAN really does not use much memory for the channel. The channel is just a pipe into the backup destination device. As soon as data flows into the channel, that data flows onto the device. The amount of memory that RMAN uses is negligable compared to the database instance.
Dig Deeper on Oracle database design and architecture
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.