During a backup execution, I saw this warning “RMAN-06061: WARNING: skipping archivelog compromises recoverability” follow by “RMAN-00600: internal error, arguments [13200] [] [] [] []”. Then, searching in the MOS (My Oracle Support) I found this ID [341337.1] where I got the answer. Basically, you have to do this steps: RMAN> Resync catalog ; RMAN> Crosscheck archivelog all ; RMAN> delete expired archivelog all ; After, run your backup again with “SKIP Inaccessible option”, if failed again, try rerun without “SKIP Inaccessible option”. I hope this post can help you!…