8月15

标签：跟踪   cat   file   users   dbf   log   enable   dba   _id   

备份数据文件：

SQL> select file_id, file_name from dba_data_files;   查文件对应的序列号

RMAN> backup datafile 4;

RMAN> backup datafile 4, 5;

RMAN> backup datafile ‘/u01/app/oracle/oradata/orcl/users01.dbf‘;

RMAN> backup tablespace users;

RMAN> backup tablespace users, example;

RMAN> backup database;

RMAN> list backup;

desc v$backup_set，浏览器查看备份

增量备份：

RMAN> backup incremental level 0 tablespace users;

RMAN> list backup of tablespace users;

SQL> create table t1(x int) tablespace users;

SQL> insert into t1 values (1);

SQL> commit;

RMAN> backup incremental level 1 tablespace users;

RMAN> backup incremental level 1 tablespace users;

SQL> create table t2(x int) tablespace users;

SQL> insert into t2 values (1);

SQL> commit;

RMAN> backup incremental level 1 cumulative tablespace users;

RMAN> list backup of tablespace users;

开启块跟踪：

SQL> alter database enable block change tracking using file ‘/home/oracle/blk_trk.chg‘;

需要重新连接会话

SQL> select * from v$block_change_tracking;

SQL> select DATAFILE_BLOCKS, BLOCKS_READ, BLOCKS, USED_CHANGE_TRACKING from v$backup_datafile where INCREMENTAL_LEVEL>0;

SQL> create table t3(x int) tablespace users;

SQL> insert into t3 values (1);

SQL> commit;

RMAN> backup incremental level 1 tablespace users;

SQL> select DATAFILE_BLOCKS, BLOCKS_READ, BLOCKS, USED_CHANGE_TRACKING from v$backup_datafile where INCREMENTAL_LEVEL>0;

SQL> alter database disable block change tracking; 关闭

增量更新：

SQL> create table t1(x int) tablespace users;

SQL> insert into t1 values (1);

SQL> commit;

RMAN> backup incremental level 1 for recover of copy with tag ‘update_copy‘ tablespace users; 第一次创建的是0级备份

RMAN> list copy; 记录time和scn

SQL> insert into t1 values (2);

SQL> commit;

RMAN> backup incremental level 1 for recover of copy with tag ‘update_copy‘ tablespace users; 第2次创建的是1级备份

RMAN> list backup; backupset格式

RMAN> recover copy of tablespace users with tag ‘update_copy‘;

RMAN> list copy; time和scn更新

脚本形式：

RMAN> run {

backup incremental level 1 for recover of copy with tag ‘update_copy‘ tablespace users;

recover copy of tablespace users with tag ‘update_copy‘;

}

备份归档日志：

RMAN> list archivelog all;         列出当前系统的所有归档日志

RMAN> backup archivelog all delete all input;      备份归档日志并删除归档文件    

RMAN> list archivelog all;

RMAN> list backup;

备份的维护：

查看：

RMAN> list backup;

RMAN> list copy;

RMAN> list backup of tablespace users;

RMAN> list backup of datafile 4;

RMAN> list archivelog all;

检查备份：

RMAN> delete backup; 删除备份

RMAN> delete copy;

RMAN> list backup; list copy;

RMAN> report need backup; 根据策略检查

RMAN> backup tablespace users;

RMAN> report need backup;

RMAN> CONFIGURE RETENTION POLICY TO REDUNDANCY 2;

RMAN> report need backup;

RMAN> CONFIGURE RETENTION POLICY clear;

RMAN> report obsolete;    报告所有废弃的。

删除备份：

RMAN> delete backupset of tablespace users;

RMAN> delete backupset 1234;

RMAN> backup tablespace users;

RMAN> backup tablespace users;

RMAN> show all;

RMAN> delete obsolete;

crosscheck:交叉检查

RMAN> delete backup;

RMAN> backup tablespace users;

RMAN> list backup of tablespace users;

$ mv /u01/app/oracle/fast_recovery_area/ORCL/backupset/… 改名

RMAN> restore datafile 4; 报错

RMAN> crosscheck backup;

RMAN> list backup of tablespace users; 报废状态

RMAN> list expired backup;

$ mv /u01/app/oracle/fast_recovery_area/ORCL/backupset/… 恢复原名

RMAN> crosscheck backup;

RMAN> list backup of tablespace users; 可用状态

RMAN> delete expired backup;

catalog:

$ cp /u01/app/oracle/fast_recovery_area/ORCL/backupset/… 复制

RMAN> delete backup;

RMAN> list backup; backupset消失

$ mv /u01/app/oracle/fast_recovery_area/ORCL/backupset/… 恢复原名

RMAN> catalog recovery area noprompt;

RMAN> list backup; backupset恢复

8月15

标签：跟踪   cat   file   users   dbf   log   enable   dba   _id   

原文地址：http://www.cnblogs.com/m4116/p/7366958.html