RMAN Backup Shell Script to Run in Background with nohup.

Step 1. Prepare a RMAN command file

vi rman_bkup.cmd

run
{

allocate channel ch1 device type disk;
allocate channel ch2 device type disk;

allocate channel ch3 device type disk;

sql 'ALTER SYSTEM ARCHIVE LOG CURRENT';

sql ‘ALTER SYSTEM SWITCH LOGFILE’;

configure retention policy to recovery window of 8 days;

CONFIGURE DEVICE TYPE DISK BACKUP TYPE TO COMPRESSED BACKUPSET PARALLELISM 8;

CONFIGURE COMPRESSION ALGORITHM 'MEDIUM';

CROSSCHECK BACKUP DEVICE TYPE DISK;

CROSSCHECK ARCHIVELOG ALL;

delete noprompt archivelog all backed up 1 times to device type disk;

backup incremental level 0 as compressed backupset database archivelog all tag level0_weekly_ backup delete input;

DELETE NOPROMPT OBSOLETE;

DELETE NOPROMPT EXPIRED BACKUP;

release channel ch1;
release channel ch2;

release channel ch3;

}

Step 2. Create a shell script to run RMAN

vi rman_bkup.ksh

#!/bin/ksh

export ORACLE_SID=ORCL1

export ORACLE_HOME=/u001/oracle/product/database/11.2.0/db_ORCL

export PATH=$PATH1:$ORACLE_HOME/bin

rman target system/++++++ msglog /home/oracle/rman/rman_bkup.log cmdfile=/home/oracle/rman/rman_bkup.cmd

wasdba