A focus of this blog since 2015 has been the integration of Oracle RMAN with Data Domain.
I should note first I am currently employed by EMC, the manufacturer of the Data Domain backup appliance.
The Data Domain is an advanced backup appliance with inline deduplication and compression, which makes it an ideal selection for making operational backups of Oracle databases with RMAN.
The optional DD Boost option, which moves deduplication from the appliance to the database server accelerates backups to the point where in many cases, a full or level 0 RMAN backup is as fast or faster than a conventional incremental.
The following posts are my exploration of integration Oracle backups with Data Domain.a