Need an RMAN backup script?
This is an RMAN script to backup the entire database and archived redo logs for a non-RAC and RAC environments.

In this example we will save the script in a file called “backup.rcv”. The script contains disk location which can be changed according to your specific environment.

----------------- backup.rcv for non-RAC -----------------
run
{
allocate channel c1 type disk format '/oracle/backup/rman_db_%T_%U.rman';
backup as compressed backupset full database include current controlfile;
release channel c1;
allocate channel c1 type disk
     format '/oracle/backup/rman_arc_%T_%U.rman';
sql "alter system archive log current";
delete noprompt archivelog all backed up 2 times to device type disk;
backup as compressed backupset archivelog all;
sql "alter database backup controlfile
     to ''/oracle/backup/rman_control.rman'' reuse";
release channel c1;
}
----------------- end of backup.rcv -----------------
----------------- backup.rcv for RAC -----------------
run
{
allocate channel c1 type disk format '/oracle/backup/rman_db_%T_%U.rman';
connect 'sys/sys@node1';
backup as compressed backupset full database include current controlfile;
release channel c1;
allocate channel c1 type disk format '/oracle/backup/rman_arc_%T_%U.rman';
connect 'sys/sys@node1';
allocate channel c2 type disk format '/oracle/backup/rman_arc_%T_%U.rman';
connect 'sys/sys@node2';
sql "alter system archive log current";
delete noprompt archivelog all backed up 2 times to device type disk;
backup as compressed backupset archivelog all;
sql "alter database backup controlfile
     to ''/oracle/backup/rman_control.rman'' reuse";
release channel c1;
release channel c2;
}
----------------- end of backup.rcv -----------------

Now, to use this script just execute:

rman target / cmdfile=backup.rcv