oracle 使用RMAN自动备份

1、用oracle身份登陆

2、编写自动备份的脚本并清除归档日志

$ vi /home/oracle/backs.sh

#!/bin/sh

source /home/oracle/.bash_profile

cd $ORACLE_HOME/bin

rman target / nocatalog msglog=/home/oracle/rman_bk_`date '+%Y%m%d%H%M%S'`.log <<EOF

run{

REPORT OBSOLETE;

DELETE force NOPROMPT OBSOLETE;

allocate channel c1 type disk;

allocate channel c2 type disk;

allocate channel c3 type disk;

backup incremental level=0 database tag 'level0' format '/home/oracle/dblevel0_%s_%T' ;

backup current controlfile tag 'ctl' format '/home/oracle/ctl_%s_%p_%t';

sql 'alter system archive log current';

crosscheck archivelog all;

backup filesperset 3 archivelog all tag 'arch' format '/home/oracle/oarch_%u_%s_%p' delete input;

release channel c1;

release channel c2;

release channel c3;

}

exit;

EOF

备注：

log日志文件名最后的格式如bk_年月日小时分钟秒.log

rman_bk_20120102101501.log

%s 备份集的号

%t 备份集时间戳

%T 年月日格式(YYYYMMDD)

3、设置RMAN自动运行保存数据库的脚本

vi /home/oracle/runback.sh

#!/bin/sh

source /home/oracle/backs.sh

4、设置RMAN自动备份在脚本的执行时间，这边的时间是每天的10点15分

crontab -e

3 10 * * * /home/oracle/runback.sh