Linux 环境部署 Rman 备份Linux环境，Rman 定时备份部署，本文介绍了每周全量加增量的部署方式。备份策略

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1. 创建rman备份所需目录

oracle用户下创建，目录名可自定义，保证目录所在磁盘空间充足即可。

su – oracle
mkdir rmanbackup
mkdir scripts/log -p

2. 编写rman备份脚本

注意根据实际环境修改对应路径及数据库实例名：

全量备份脚本rmanbackup0.sh

#!/bin/sh
DATE=`date +%Y-%m-%d`
export ORACLE_HOME=/u01/app/oracle/product/11.2.0/dbhome_1
export ORACLE_BASE=/u01/app/oracle
export ORACLE_SID=orcl
$ORACLE_HOME/bin/rman cmdfile /home/oracle/scripts/backup0.rcv log=/home/oracle/scripts/log/rman_full_$DATE.log

增量备份脚本rmanbackup1.sh

#!/bin/sh
DATE=`date +%Y-%m-%d`
export ORACLE_HOME=/u01/app/oracle/product/11.2.0/dbhome_1
export ORACLE_BASE=/u01/app/oracle
export ORACLE_SID=orcl
$ORACLE_HOME/bin/rman cmdfile /home/oracle/scripts/backup1.rcv log=/home/oracle/scripts/log/rman_inc_$DATE.log

backup0.rcv

connect target  /
run
{
allocate channel d1 type disk;
allocate channel d2 type disk;
allocate channel d3 type disk;
allocate channel d4 type disk;
backup incremental level 0 format '/rmanbackup/orcl_full_%U' database include current controlfile;
delete noprompt obsolete device type disk;
sql 'alter system archive log current';
backup  format '/rmanbackup/orcl_arch_full_%U' archivelog all not backed up delete input;
crosscheck backup;
delete noprompt expired backup;
release channel d1;
release channel d2;
release channel d3;
release channel d4;
}

backup1.rcv

connect target  /
run
{
allocate channel d1 type disk;
allocate channel d2 type disk;
allocate channel d3 type disk;
allocate channel d4 type disk;
backup incremental level 1 format '/rmanbackup/orcl_inc_%U' database;
delete noprompt obsolete device type disk; 
sql 'alter system archive log current';
backup format '/rmanbackup/orcl_arch_inc_%U' archivelog all not backed up delete input;
crosscheck backup;
delete noprompt expired backup;
release channel d1;
release channel d2;
release channel d3;
release channel d4;
}

3. 修改备份保留策略

rman备份保留策略调整为保留2次全备（默认保留一次全备），oracle用户运行

rman target /
configure retention policy to redundancy 2;
show all;

4. 创建定时任务

备份策略为每周六全量备份，其他时间每天增量备份，保留2次全备。

Oracle用户下，授予脚本可执行权限

chmod u+x /home/oracle/scripts/rmanbackup1.sh
chmod u+x /home/oracle/scripts/rmanbackup0.sh

添加定时计划

crontab -e

添加如下内容：
0 23 * * 6 /home/oracle/scripts/rmanbackup0.sh         
0 23 * * 0,1,2,3,4,5 /home/oracle/scripts/rmanbackup1.sh
crontab -l

5. rman备份监控

数据库中运行如下命令可查看数据库rman备份情况

crontab -e

添加如下内容：
0 23 * * 6 /home/oracle/scripts/rmanbackup0.sh         
0 23 * * 0,1,2,3,4,5 /home/oracle/scripts/rmanbackup1.sh
crontab -l