rman备份前环境配置详解（图）

RMAN备份前环境配置。
1.连接到目标数据库

rman target user/password@yourdbname

2.启用控制文件自动备份

configure controlfile autobackup on;

3.配置自动备份的存放位置

configure controlfile autobackup format for device type disk to 'D:\database\backup\autobackupcontrole/autobackup_controle_%F';

4.配置控制文件的快照存放位置：

configure snapshot controlfile name to 'D:\database\backup\backupsnapshot\s%U';

5.修改备份格式为copy

configure device type disk backup type to copy;

7.配置缺省介质是磁盘备份

configure default device type to disk;

8.配置缺省备份是压缩方式：

configure device type disk backup type to compressed backupset;

9.配置缺省备份位置及名称

configure channel 1 device type disk format 'D:\database\backup\102wxxrdb\%U';

----配置备份保留策略-----
10.基于恢复窗口，7天

configure retention policy to recovery window of 7 days;

11.基于冗余策略，每个文件至少保留2份

configure retention policy to redundancy 2;  

12.查看备份策略：

show retention policy;

13.查看过期的备份文件

report obsolete;

14.清空备份策略：

configure retention policy to none;

15.根据备份策略，删除过期备份

delete obsolete;

16.恢复上面的配置为默认值：configure ..... clear

configure controlfile autobackup format for device type disk clear;