#!/bin/sh
source /home/oracle/.bash_profile

if [ -z $1 ]
then
  echo "Please Input a number,Usage: 0|1|2"
  exit
else
  RMAN_LEVEL=$1
fi

export ORACLE_SID=xxxx
export TODAY=`date '+%Y%m%d'`
export RMAN_DIR=/backup/archivelog/rman/$ORACLE_SID/$TODAY-$RMAN_LEVEL

mkdir -p $RMAN_DIR
cd $RMAN_DIR
LogFile=ora_rman_bk_$ORACLE_SID-L$RMAN_LEVEL-`date '+%Y%m%d'`.log

# rman backup
rman target /  msglog=$RMAN_DIR/$LogFile<<EOF
delete noprompt obsolete;
CONFIGURE BACKUP OPTIMIZATION ON;
CONFIGURE CONTROLFILE AUTOBACKUP ON;
CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO '$RMAN_DIR/cf%F';
run {
allocate channel c1 type disk;
allocate channel c2 type disk;
backup as compressed backupset incremental level $RMAN_LEVEL filesperset 3 tag 'dbL$RMAN_LEVEL' format '$RMAN_DIR/ora_o_%d_%t%s%p%u'
 database skip readonly include current controlfile;
sql 'alter system archive log current' ;
backup(archivelog all format '$RMAN_DIR/ora_a_%d_%t%s%p%u' delete input);
release channel c1;
release channel c2;
}

list backup;
exit;
EOF

#mail backup log
mail -s "$ORACLE_SID rman L$RMAN_LEVEL backup log $TODAY"  [email protected] < $RMAN_DIR
/$LogFile

顺便提一嘴：

delete noprompt
obsolete与delete obsolete区别

noprompt ：是不用提示，在shell脚本中不需要对发起的delete命令进行“yes
or no”的确认。

在crontab 中设置如下：

0 4 * * 5 sh /backup/scripts/oracle/oracle_rman_bak.sh 0 > /backup/archivelog/logs/rman.log 2>&1

0 4 * * 2 sh /backup/scripts/oracle/oracle_rman_bak.sh 1 > /backup/archivelog/logs/rman.log 2>&1

进行一周一次增量与0级备份。