how much time does it take to backup 100gb database with RMAN and expdp?

Question

how much time does it take to backup 100 GB database with RMAN and expdp?

I want to take backup of the system before applying the partitioning activity. In case of error, backup data restore immediately.

Answer 1

Depends on the system, I would say RMAN would take something between 1 to 2 hours. EXPDP would probably take more than RMAN.