CentOS6.4-RMAN定时任务备份 on 11GR2

1、rman备份脚本位置：

/home/oracle

                      ./scripts/

                                    ./bin                    -----存放rman脚本

                                    ./log                   
-----存放定时任务执行日志

2、/bin脚本规划：

     

脚本规划

rmancfg.sh	rman参数配置脚本	执行一次即可
inc0.sh	rman零级备份	备份路径参数
inc1.sh	rman一级备份	备份路径参数
inc0cron.sh	零级备份定时脚本	oracle环境变量
inc1cron.sh	一级备份定时脚本	oracle环境变量
del.sh	删除过期备份数据
delcron.sh	过期备份校验删除定时脚本	oracle环境变量

      

    

3、rman脚本内容

将用到的环境变量添加到oracle用户的.bash_profile，

在后面cron脚本中source  ~/.bash_profile即可。
vi  ./bin/profile.env

export NLS_LANG=AMERICAN_AMERICA.ZHS16GBK

export NLS_DATE_FORMAT='yyyy-mm-dd hh24:mi:ss'

export rman_bakpath=/rman/bak

export dt=`date +"%y%m%d%H%M"`

export days=15

export catlu=rmanbak

export catlp=rmanbak
======================================================================================================

./inc0.sh (使用catalog库存放备份信息)

rman target / catalog $catlu/$catlp << EOF

run{

backup as compressed backupset incremental level 0 database format '$rman_bakpath/%d_level0_%s_%Y%M%D.bak';

sql 'alter system archive log current';

backup as compressed backupset archivelog all format '$rman_bakpath/%d_arch_%s_%Y%M%D_%U.bak' delete all input;

backup as compressed backupset current controlfile format '$rman_bakpath/%d_control_%s_%Y%M%D_%U.bak';

}

EOF

======================================================================================================

./inc1.sh  (使用catalog库存放备份信息)

rman target / catalog $catlu/$catlp << EOF

run{

backup as compressed backupset incremental level 1 database format '$rman_bakpath/%d_level1_%s_%Y%M%D.bak';

sql 'alter system archive log current';

backup as compressed backupset archivelog all format '$rman_bakpath/%d_arch_%s_%Y%M%D_%U.bak' delete all input;

backup as compressed backupset current controlfile format '$rman_bakpath/%d_control_%s_%Y%M%D_%U.bak';

}

EOF

======================================================================================================

./del.sh

rman target / catalog $catlu/$catlp << EOF

run{

crosscheck archivelog all;

crosscheck backup;

delete noprompt expired backup;

delete noprompt expired archivelog all;

delete noprompt obsolete;

delete noprompt archivelog until time 'sysdate-$days';

delete noprompt  backup until time 'sysdate-$days';

}

EOF
=====================================================================================================

4、crontab定时任务脚本内容

./inc0cron.sh

source  ~/.bash_profile

cd /home/oracle/scripts/bin/ && ./inc0.sh > ../log/inc0_$dt.log

----------------------------------------------------------------------------------------------------------------------------------------

./inc1cron.sh

source  ~/.bash_profile

cd /home/oracle/scripts/bin/ && ./inc1.sh > ../log/inc1_$dt.log

----------------------------------------------------------------------------------------------------------------------------------------

./delcron.sh

source  ~/.bash_profile

cd /home/oracle/scripts/bin/ && ./del.sh > ../log/del_$dt.log

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./rmancfg.sh            这个脚本手工执行一次即可。无需source  ~/.bash_profile

cat ~/scripts/bin/profile.env >> ~/.bash_profile

cores=(`lscpu | grep "^CPU(s)"|awk {'print $2'}`)

if [ $cores -gt  16 ]; then

cores=16

fi

rman target / << EOF

run{

CONFIGURE DEVICE TYPE DISK PARALLELISM $cores BACKUP TYPE TO BACKUPSET;

CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF $days DAYS;

CONFIGURE BACKUP OPTIMIZATION ON;

}

EOF

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5、su - oracle 添加定时任务

$crontab -e

30 23 */14 * *   /home/oracle/scripts/bin/inc0cron.sh

30 23 * * 5   /home/oracle/scripts/bin/inc1cron.sh

0 0 */15 * *  /home/oracle/scripts/bin/delcron.sh

----------------------------------------------------------------------------------------------------------------------------------------

oracle用户的定时任务：

cron定时任务程序只是用oracle用户来执行脚本，而并未登录到oracle用户，

因此，需要在脚本中source好oracle用户环境变量。否则定时任务无法执行。

./*.sh是fork的方法，source *.sh和. *sh（点加空格加脚本文件）是source的方法。

执行子级命令后继续执行父级命令，同时子级设置的环境变量会影响到父级的环境变量。

source与fork的区别是不新开一个sub-shell来执行被调用的脚本，而是在同一个shell中执行.

所以被调用的脚本中声明的变量和环境变量, 都可以在主脚本中得到和使用.


调试执行计划任务过程中，可使用tail -f  /var/spool/mail/oracle监控执行计划任务报错信息。

注意：~/scripts/bin/profile.env需要根据实际环境进行配置。