I have a space of 50 GB,which is SAN mounted.
For First cycle Full back up by RMAN it takes 30 GB of Oracle 10g RAC.
When i took Second Full Back up it takes again minimum 31 GB.But i have a only 50 GB space.
Before deletion of first back up it will makes as obsolute by keeping second one.
Is there any way around to make sapce optimised.