ORA-19566: exceeded limit of 0 corrupt blocks for file

Cause: Corrupted data blocks

When a BACKUP, VALIDATE, or BACKUP VALIDATE command is run using RMAN, it automatically detects corrupted blocks and throws ‘ORA-19566 ‘ error message.

Solution: You can instruct RMAN to recover all blocks reported in V$DATABASE_BLOCK_CORRUPTION.

RMAN> recover corruption list;

And another way to recover the block is to specify the data file and block number:

Example:

RMAN> recover datafile 4 block 10;