The advantages over file system files.
I/O will be improved because Oracle is bye-passing the kernnel which writing into disk.
Disk Corruption will be very less.
The Control File is a small binary file necessary for the database to start and operate successfully. Each Control file is associated with only one Oracle database. Before a database is opened, the control file is read to determine if the database is in a valid state to USE.
The Control file is not accessible, the database does not function properly.
By using dictionary view's called v$rollstat,dba_rollback_segs.
This can be monitored in DB_data_files.
Due to syntax errors.