Oracle rman backup schedule after a failed level 1 incremental backup

Question

I created rman backup level 0 on monday -> succeeded , level 1 on tuesday -> succeeded ,level 1 on wednessday -> failed

My doubts are 1)after the failed schedule which level (0/1/cumulative) of backup i have to take to make sure my database integrity ? 2)Shall I need to keep the failed schedule data or I can delete ?

Answer 1

Q1. For integrity checking using rman> validate database Q2. Configure retention policy and have rman clean obsolete backup for you.