新装数据库配置RMAN备份

  自己的RMAN实践 

首先：设置归档
1.
sql>alter system set log_archive_dest_1='location=/oracle/oradata/log/archive_log';

2.关闭数据库
SQL> shutdown immediate

3.启动数据mount状态：
SQL> startup mount;

4、修改数据库为归档模式：
SQL> alter database archivelog;

5、打开数据库，查询：
SQL> alter database open;

修改日志文件命名格式：
SQL> alter system set log_archive_max_processes = 5;
SQL> alter system set log_archive_format = "archive_%t_%s_%r.log" scope=spfile;  --修改后需重启数据库
alter system switch logfile; --归档当前日志

删除归档日志-- 一般RMAN后删除
delete archivelog all completed before 'SYSDATE-7';

---添加联机日志

alter database add logfile  group 5 ('/oracle/oradata/log/online_log/redo05_01.log','/oracle/oradata/tsh1/redo05_02.log') size 100m;
alter database add logfile  group 6 ('/oracle/oradata/log/online_log/redo06_01.log','/oracle/oradata/tsh1/redo06_02.log') size 100m;
alter database add logfile  group 7 ('/oracle/oradata/log/online_log/redo07_01.log','/oracle/oradata/tsh1/redo07_02.log') size 100m;
alter database add logfile  group 8 ('/oracle/oradata/log/online_log/redo08_01.log','/oracle/oradata/tsh1/redo08_02.log') size 100m;

alter database add logfile  group 1 ('/oracle/oradata/log/online_log/redo01_01.log','/oracle/oradata/tsh1/redo01_02.log') size 50m;
alter database add logfile  group 2 ('/oracle/oradata/log/online_log/redo02_01.log','/oracle/oradata/tsh1o/redo02_02.log') size 50m;
alter database add logfile  group 3 ('/oracle/oradata/log/online_log/redo03_01.log','/oracle/oradata/tsh1/redo03_02.log') size 50m;
alter database add logfile  group 4 ('/oracle/oradata/log/online_log/redo04_01.log','/oracle/oradata/tsh1/redo04_02.log') size 50m;

delete archivelog all completed before 'SYSDATE+1';

--配置RMAN
configure default device type to disk; --配置为磁盘备份
configure device type disk parallelism 2;  --配置两个通道进行备份

--配置各个通道备份存储的地方
configure channel 1 device type disk format '/oracle/oradata/backup1/backup_%U';
configure channel 2 device type disk format '/oracle/oradata/backup2/backup_%U';

configure controlfile autobackup on;  --控制文件自动备份
configure controlfile autobackup format for device type disk to '/oracle/oradata/backup2/controlfile_backup/ctl_%F';

configure retention policy to recovery window of 7 days;
--recover window是保持所有足够的备份，可以将数据库系统恢复到最近七天内的任意时刻。任何超过最近七天的数据库备份将被标记为obsolete。
configure retention policy to redundancy 5;
--redundancy 是为了保持可以恢复的最新的5份数据库备份，任何超过最新5份的备份都将被标记为redundancy。它的默认值是1份。
configure retention policy clear;
-- 保存策略重置为默认值（冗余为1）
CONFIGURE RETENTION POLICY TO NONE;

创建恢复目录

     如果只有很少的一些数据库，则恢复目录就可能不值得花费额外的时间和精力在它上面了

---详细参考 ：

RMAN 系列（二） ---- RMAN 设置和配置

http://blog.csdn.net/tianlesoftware/article/details/5674309 

如何 搭建 RMAN 备份平台

http://blog.csdn.net/tianlesoftware/article/details/5740896

在此感谢 tianlesoftware