This parameter controls the RMAN binary compression of save sets.
Syntax
rman_compress = no|yes
Possible value:
yes: activates the RMAN binary compression of save sets
Caution
RMAN compression is only supported for save sets and for incremental backups. It is not supported for 1:1 copies of database files that were created from disk backups with disk_copy_cmd = rman.
To use RMAN compression, save sets must be created by RMAN on disk with disk_copy_cmd = rman_set.