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HomeDatabaseMysql TutorialRMAN的configure配置

1 show all; 显示当前配置信息 2 select * from v$rman_configuration; 查询RMAN中的非默认值 3 configure常用选项 3.1 保持策略

1 show all; 显示当前配置信息

2 select * from v$rman_configuration;  查询RMAN中的非默认值

3 configure常用选项

3.1 保持策略

configure retention policy to recovery window of 7 days;  超过最近7天以外的备份都被标记为obsolete

configure retention policy to redundancy 5;  保持可恢复的最新5个备份,超过这个最新5个的备份被标记为redundancy

configure retention policy clear;  恢复默认的保持策略

configure retention policy to none;  使备份保持策略失效

3.2 备份优化,默认关闭,若打开,将对备份文件及归档文件进行优化

backup optimization

configure backup optimization on;

configure backup optimization off;

configure backup optimization clear;

3.3  默认设备,,默认是磁盘

configure default device type to disk;

configure default device type to stb;

configure default device type clear;

3.4  控制文件

configure controlfile autobackup on(off);

configure controlfile autobackup format for device type disk to '/backupset/conf_%F';

configure controlfile autobackup clear;

configure controlfile autobackup format for device type disk clear;

configure snapshot controlfile name to '/backup/scontrollfile.snp';  控制文件的快照存放路径及名称,备份期间产生,用于控制文件的读一致性

configure snapshot controlfile name clear; 

3.5  并行度(通道数)device type diskstb pallelism n

configure device type diskstb parallelism 2;

configure device type diskstb clear;

configure channel device type disk format '路径/rmanback_%U';

configure channel device type disk maxpiecesize 100m;

configure channel device type disk rate 1200K;

configure channel 1 device type disk format '路径/:rmanback_%U';

configure channel 2 device type disk format '路径/:rmanback_%U';

configure channel 1 device type disk maxpiecesize 100m;

 3.6 生成备份副本

configure datafile backup copies for device type diskstb to 3;

configure archivelog backup copies for device type diskstb to 3;

configure datafile | archivelog backup copies for device type diskstb clear;  设置DB的文件的备份的存放设备类型

backup device type disk database format '路径1/%U','路径2/%U','路径3/%U';  配置DB的每次备份的copy数量,即每一次备份完有个多份相同的copy

3.7 排除选项 exclude

configure exclude for tablespace 'users';  指定users表空间不备份到备份集中,对只读表空间很有用

configure clear;

3.8 设置备份集大小maxsetsize

configure maxsetsize to 1G | 1000M | 1000000K | unlimited;

configure maxsetsize clear;

3.9 其他选项auxiliary

configure auxname for datafile 1 to ‘路径/aux_1.f’;

configure auxname for datafile 2 to ‘路径/aux_2.f’;

configure auxname for datafile 3 to ‘路径/aux_3.f’;

configure auxname for datafile 4 to ‘路径/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;

 

format格式中的%

%c 备份片的copy数

%d 数据库名称

%D 位于该月中的第几天

%M 位于该年中的第几月

%F 基于DBID唯一的名称

例: c-IIIIIIIIII-YYYYMMDD-QQ

IIIIIIIIII 为库的DBID

QQ 1-256的序列

%n 数据库名称

%u 8个字符的名称代表备份集与创建时间

%p 备份集的备份片号

%U 一个唯一的文件名,即%u_%p_%c

%s 备份集的号

%t  备份集的时间戳

%T 年月日格式YYYYMMDD

推荐阅读:

RMAN 配置归档日志删除策略

Oracle基础教程之通过RMAN复制数据库

RMAN备份策略制定参考内容

RMAN备份学习笔记

Oracle数据库备份加密 RMAN加密

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