Oracle RAC 11g R2自动备份

[root@rac1 ~]# df -k
文件系统               1K-块        已用     可用 已用% 挂载点
/dev/sda5             56675736  15020976  38729328  28% /
/dev/sda2             49594228  12816756  34217516  28% /opt
/dev/sda1               101086     27988     67879  30% /boot
tmpfs                 16213112   7980064   8233048  50% /dev/shm
none                  16213112       104  16213008   1% /var/lib/xenstored

[root@rac1 ~]# more /home/oracle/phy_backup/backup.sh
su - oracle -c '/home/oracle/phy_backup/exp.sh'
[root@rac1 ~]# more /home/oracle/phy_backup/exp.sh
#!/bin/sh
#. /home/oracle/.bash_profile

#define variable......
backup_date=`date +%Y%m%d_%H%M%S`
bak_home=/dev/sda5
backup_dest=/home/oracle/phy_backup/data
backup_log=/home/oracle/phy_backup/log
#RECIPT='xx@xx.com'

# Check local disk space..................................
USED=` df -k|grep $bak_home|awk '{print $5}'|awk -F% '{print $1}'`
echo $USED
#if [ $USED -gt 85 ]; then
#echo "Disk space is full\243\254please check it"|mail -s "exp full backup fai
led" $RECIPT
#exit 1
#fi
#starting exp backup.....
exp system/lgws123 full=y buffer=65536 file=$backup_dest/data_$backup_date.dmp
 log=$backup_log/data_$backup_date.log

# delete expired backup ...
list=` find $backup_dest -type f -mtime +30`
echo $list
if [ -n "$list" ]; then
rm -f $list
fi
#if [ $? -ne 0 ]; then
#cat $backup_log/data_$backup_date.log|mail -s "exp full backup failed,please
check it" $RECIPT
#exit 1
#fi
#cat $backup_log/data_$backup_date.log|mail -s "$backup_date exp log " $RECIPT

[root@rac1 ~]# crontab -e
0 0 * * * /home/oracle/phy_backup/backup.sh
0 12 * * * /home/oracle/phy_backup/backup.sh