一、新建备份目录并授权：

[oracle@TAIXIN-HR ~]$ mkdir -p  /home/oracle/app/hr_back (备份目录)

mkdir -p  /home/oracle/app/hr_back/archback

mkdir -p /home/oracle/app/hr_back/rmanscripts

[oracle@TAIXIN-HR ~]$ chmod  755 /home/oracle/app/hr_back (授权)

chown -R oracle:oinstall /home/oracle/app/oradataback

touch  rmanlevel0.sh  rmanlevel1.sh  rmanlevel2.sh(创建脚本文件)

二、vi 编辑3个文件：

0级备份文件：

#rmanlevel0.sh

#!/bin/sh

export ORACLE_SID=实例名 # rman level0 backup

rman log='/home/oracle/app/hr_back/db_rman0.log' append <

connect target /;

run

{

allocate channel c1 type disk;

backup as compressed backupset incremental level=0 database format '/home/oracle/app/hr_back/db_level0_%T_%U' tag='level0';

sql 'alter system archive log current';

backup archivelog all format '/home/oracle/app/hr_back/archback/db_arch_%T_%U' delete input;

release channel c1;

}

exit

1级备份文件：

#rmanlevel1.sh

#!/bin/sh

export ORACLE_SID=实例名 # rman level0 backup

rman log='/home/oracle/app/hr_back/db_rman1.log' append <

connect target /;

run

{

allocate channel c1 type disk;

backup incremental level=1 database format '/home/oracle/app/hr_back/db_level1_%T_%U' tag='level1';

sql 'alter system archive log current';

backup archivelog all format '/home/oracle/app/hr_back/archback/db_arch_%T_%U' delete input;

release channel c1;

}

exit

2级备份文件：

#rmanlevel2.sh

#!/bin/sh

export ORACLE_SID=实例名  # rman level0 backup

rman log='/home/oracle/app/hr_back/db_rman2.log' append <

connect target /;

run

{

allocate channel c1 type disk;

backup incremental level=2 database format '/home/oracle/app/hr_back/db_level2_%T_%U' tag='level2';

sql 'alter system archive log current';

backup archivelog all format '/home/oracle/app/hr_back/archback/db_arch_%T_%U' delete input;

release channel c1;

}

exit

三、将脚本设置定时运行

在root用户下输入crontab -e

0 2 1 * * su – oracle -c /home/oracle/app/hr_back/rmanscripts/rmanlevel0.sh  //每月1日2：00运行 0级备份

0 2 * * 0 su – oracle -c /home/oracle/app/hr_back/rmanscripts/rmanlevel1.sh  //每周日2：00运行 1级备份

0 2 * * 1-6 su – oracle -c /home/oracle/app/hr_back/rmanscripts/rmanlevel2.sh  //每周一周六2:00运行 2级增量备份

--查看添加的任务： crontab   -l

--crontab的格式：

minutes|hours|day of month|month|day of week|

四、将数据库备份的文件夹再备份到LAN共享

1、映射windows共享

Mount –t cifs –o username=,password= //ip/dir /dir

2、利用linux cp 命令把oracle 备份文件夹复制到映射的共享

mkdir /home/oracle/app/move_back/$(date +%Y%m%d)(创建以日期命名的文件夹)

cp -R /home/oracle/app/hr_back/*  /home/oracle/app/move_back/$(date +%Y%m%d)(复制)

exit