Dear Experts,
After upgrading to Oracle 11.2.0.4 + SAP Kernel 721_EXT from Oracle 10.2.0.4 + SAP Kernel 700, we had a problem with backup performance using brtools. The backup time took pretty long running with 20 hours for 3.6TB.
Before upgrade to Oracle 11.2.0.4 the backup performance just took 12 hours for 3.6TB.
What's parameter need to be tuned?
Thank You 
Edy