每周日凌晨3点全备，其他时间每半小时备份一次归档，备份文件保留两周
[oracle@DB01 backup]$ crontab -l
0 3 * * 0 /home/oracle/backup/full_backup.sh
0,30 */1 * * * /home/oracle/backup/arch_backup.sh
14,30 */24 * * * find /oradata/rman_backup -mtime +14 |xargs rm -rf


[oracle@DB01 backup]$ cat /home/oracle/backup/arch_backup.sh
#!/bin/sh
#Full Archive Backup Script 
export ORACLE_HOME=/oracle/app/oracle/product/11.2.0/db2
export ORACLE_SID=db01
export DBNAME=db
export PATH=$ORACLE_HOME/bin:$PATH
year=`date "+%Y"`
month=`date "+%m"`
day=`date "+%d"`
hour=`date "+%H"`
min=`date "+%M"`
sec=`date "+%S"`
bakdate=$year$month$day
baktime=$hour$min$sec
BACKUP_DIR=/oradata/rman_backup/$bakdate
SCRIPT_DIR=/home/oracle/backup
CMDFILE=$SCRIPT_DIR/arch_backup.rman
LOGFILE=$SCRIPT_DIR/log/arch/${bakdate}_${baktime}_arch.log
mkdir $BACKUP_DIR
cd /home/oracle
>$CMDFILE
cat <<EOF >>$CMDFILE
run{
allocate channel ch1  device type disk;
allocate channel ch2  device type disk;
allocate channel ch3  device type disk;
allocate channel ch4  device type disk;
allocate channel ch5  device type disk;
allocate channel ch6  device type disk;
sql 'alter system checkpoint';
sql 'alter system switch logfile';
sql 'alter system archive log current' ;
CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 14 DAYS;
CONFIGURE SNAPSHOT CONTROLFILE NAME TO '${BACKUP_DIR}/${DBNAME}_ctl_orcl1.f';
backup as compressed backupset
 filesperset 10
  format '${BACKUP_DIR}/${DBNAME}_arch_%s_%p_%T'
  archivelog all not backed up 2 times ;
 delete noprompt  ARCHIVELOG UNTIL TIME 'SYSDATE-6';
 backup  format '${BACKUP_DIR}/${DBNAME}_ctl_%U.%T'  current controlfile;
release channel ch1;
release channel ch2;
release channel ch3;
release channel ch4;
release channel ch5;
release channel ch6;
}
EOF
rman target /  log=${LOGFILE} < $CMDFILE


[oracle@DB01 backup]$ cat /home/oracle/backup/full_backup.sh
#!/bin/sh
#Full Database Backup Script 
export ORACLE_HOME=/oracle/app/oracle/product/11.2.0/db2
export ORACLE_SID=db01
export DBNAME=db
export PATH=$ORACLE_HOME/bin:$PATH
year=`date "+%Y"`
month=`date "+%m"`
day=`date "+%d"`
hour=`date "+%H"`
min=`date "+%M"`
sec=`date "+%S"`
bakdate=$year$month$day
baktime=$hour$min$sec
BACKUP_DIR=/oradata/rman_backup/$bakdate
SCRIPT_DIR=/home/oracle/backup
CMDFILE=$SCRIPT_DIR/full_backup.rman
LOGFILE=$SCRIPT_DIR/log/${bakdate}_${baktime}_full.log
mkdir $BACKUP_DIR
cd /home/oracle
>$CMDFILE
cat <<EOF >>$CMDFILE
run{
allocate channel ch1  device type disk;
allocate channel ch2  device type disk;
allocate channel ch3  device type disk;
allocate channel ch4  device type disk;
allocate channel ch5  device type disk;
allocate channel ch6  device type disk;
sql 'alter system checkpoint';
sql 'alter system switch logfile';
sql 'alter system archive log current' ;
CONFIGURE SNAPSHOT CONTROLFILE NAME TO '${BACKUP_DIR}/${DBNAME}_ctl_orcl1.f';
crosscheck backup;
delete noprompt expired backup;
backup as compressed backupset
   full database
   filesperset 10
   format '${BACKUP_DIR}/${DBNAME}_full_%u_%p_%T'
   plus archivelog format '${BACKUP_DIR}/${DBNAME}_plus_arch_%u_%p_%T';
   backup  format '${BACKUP_DIR}/${DBNAME}_ctl_%U.%T'  current controlfile;
   backup spfile format '${BACKUP_DIR}/${DBNAME}_spfile_%U.%T';
release channel ch1;
release channel ch2;
release channel ch3;
release channel ch4;
release channel ch5;
release channel ch6;
}
EOF
rman target /  log=${LOGFILE} < $CMDFILE
[oracle@OADB01 backup]$