1 显示当前的配置信息
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1.01 RMAN> show all;
1.02 查询RMAN设置中非默认值:
    SQL> select name,value from v$rman_configure;

2. 常用的configure选项
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2.01 保存策略 (retention policy)
   configure retention policy to recovery window of 3 days;
   configure retention policy to redundancy 3;
   configure retention policy clear;

2.02 备份优化 backup optimization
   configure backup optimization on;
   configure backup optimization off;
   configure backup optimization clear;

2.03 默认设备 default device type
   configure default device type to disk;
   configure default device type to stb;
   configure default device type clear;

2.04 控制文件 controlfile
   configure controlfile autobackup on;
   configure controlfile autobackup format for device type disk to '/cfs01/backup/conf/conf_%F';
   configure controlfile autobackup clear;
   configrue controlfile autobackup format for device type disk clear;
   configrue snapshot controlfile name to '/cfs01/backup/snapcf/scontrofile.snp';
   configrue snapshot controlfile name clear;

2.05 并行数(通道数) device type disk|stb pallelism n;
   configure device type disk|stb parallelism 2;
   configure device type disk|stb clear;
       configure channel device type disk format 'e/:rmanback_%U';
       configure channel device type disk maxpiecesize 100m
   configure channel device type disk rate 1200K
        configure channel 1 device type disk format 'e/:rmanback_%U';
        configure channel 2 device type disk format 'e/:rmanback_%U';
        configure channel 1 device type disk maxpiecesize 100m

2.06 生成备份副本 datafile|archivelog backup copies
   configure datafile backup copies for device type disk|stb to 3;
   configure archivelog backup copies for device type disk|stb to 3;
   configure datafile|archivelog backup copies for device type disk|stb clear
   BACKUP DEVICE TYPE DISK DATABASE
    FORMAT '/disk1/backup/%U', '/disk2/backup/%U', '/disk3/backup/%U';

2.07 排除选项 exclude
   configure exclude for tablespace 'users';
   configrue exclude clear;

2.08 备份集大小 maxsetsize
   configure maxsetsize to 1G|1000M|1000000K|unlimited;
   configure maxsetsize clear;

2.09 其它选项 auxiliary
   CONFIGURE AUXNAME FOR DATAFILE 1 TO '/oracle/auxfiles/aux_1.f';
   CONFIGURE AUXNAME FOR DATAFILE 2 TO '/oracle/auxfiles/aux_2.f';
   CONFIGURE AUXNAME FOR DATAFILE 3 TO '/oracle/auxfiles/aux_3.f';
   CONFIGURE AUXNAME FOR DATAFILE 4 TO '/oracle/auxfiles/aux_4.f';
   -
   CONFIGURE AUXNAME FOR DATAFILE 1 CLEAR;
   CONFIGURE AUXNAME FOR DATAFILE 2 CLEAR;
   CONFIGURE AUXNAME FOR DATAFILE 3 CLEAR;
   CONFIGURE AUXNAME FOR DATAFILE 4 CLEAR;

Rman的format格式中的%
%c 备份片的拷贝数 
%d 数据库名称 
%D 位于该月中的第几天 (DD) 
%M 位于该年中的第几月 (MM) 
%F 一个基于DBID唯一的名称,这个格式的形式为c-IIIIIIIIII-YYYYMMDD-QQ,其中IIIIIIIIII为该数据库的DBID，YYYYMMDD为
日期，QQ是一个1-256的序列 
%n 数据库名称，向右填补到最大八个字符
%u 一个八个字符的名称代表备份集与创建时间 
%p 该备份集中的备份片号，从1开始到创建的文件数
%U 一个唯一的文件名，代表%u_%p_%c 
%s 备份集的号 
%t 备份集时间戳 
%T 年月日格式(YYYYMMDD)