Hi! We have gone through some database corrupt blocks in the last months, and we have seen that in some cases, RMAN and DBV disagree. Running a level 0 backup with RMAN will tell me that I have a bad block on one datafile (the backup will stop at that moment). If I run DBV on the datafile, it will return totally clean, no trace of block corruption. In the view V$DATABASE_BLOCK_CORRUPTION there is nothing. There must be something in the datafile, but rman does not say where it is located the bad block. In Metalink I have found recipes for bad blocks, reported by both rman and dbv (when they agree), that do not appear in DBA_EXTENTS as being allocated to any database object, but I can not apply those recipes to my case. So apart from recreating the tablespaces, I have no clue how to get rid or reinitialize those bad blocks. Any way to force rman to log more info on the bad blocks ? Any idea would be very much appreciated. ciao. p.s we run 10.2.0.2 on Red Hat 3.x -- Nilo Segura Oracle Support - IT/DES CERN - Geneva Switzerland