Oracle Solution for Error ora-00296

ORA-00296: maximum number of files (string) exceeded for RECOVER DATAFILE LIST

What triggered the Error:

The RECOVER DATAFILE LIST command specified more datafiles than are allowed by the DB_FILES initialization parameter. This error occurs when doing recovery with Recovery Manager, and the instance has been started with a DB_FILES parameter specifying fewer datafiles than recovery manager needs to recover to satisfy the user's RECOVER command.

What should we do to fix it:

Re-start the instance with a higher value for DB_FILES.