ORACLE 11G 利用泠备份恢复standby库

利用泠备份恢复standby数据库

開始使用泠备份进行db恢复

2.1，停止掉standby库

SQL> shutdown immediate;

Database closed.

Database dismounted.

ORACLE instance shut down.

SQL>

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2.2。将泠备中的控制文件覆盖当前的控制文件

查看原来的控制文件文件夹

[oracle@localhost oracle_cold]$ morecontrolfile.log

SQL> SELECT name FROMv$controlfile;

NAME

--------------------------------------------------------------------------------

/home/oradata/orcl/control01.ctl

/oracle/app/oracle/flash_recovery_area/orcl/control02.ctl

SQL>

開始复制覆盖

[oracle@localhost oracle_cold]$ cpcontrol02.ctl /oracle/app/oracle/flash_recovery_area/orcl/control02.ctl

[oracle@localhost oracle_cold]$ cpcontrol01.ctl /home/oradata/orcl/control01.ctl

[oracle@localhost oracle_cold]$

2.3，将泠备中的redo、undo文件覆盖到曾经的文件夹中

查看曾经的redo、undo文件路径

[oracle@localhost oracle_cold]$ morelogfile.log

SQL> select member from v$logfile;

MEMBER

--------------------------------------------------------------------------------

/home/oradata/orcl/redo03.log

/home/oradata/orcl/redo02.log

/home/oradata/orcl/redo01.log

/home/oradata/orcl/redo_dg_01.log

/home/oradata/orcl/redo_dg_02.log

/home/oradata/orcl/redo_dg_03.log

6 rows selected.

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開始覆盖redo、undo文件

[oracle@localhost oracle_cold]$ cp orcl_2/*.log/home/oradata/orcl/

[oracle@localhost oracle_cold]$

2.4，将泠备中的数据文件覆盖到曾经的文件夹中

查看曾经的数据文件文件夹

[oracle@localhost oracle_cold]$ moredatafile.log

SELECT name FROM v$datafile;

1       /home/oradata/orcl/system01.dbf

2       /home/oradata/orcl/sysaux01.dbf

3       /home/oradata/orcl/undotbs01.dbf

4       /home/oradata/orcl/users01.dbf

5       /home/oradata/orcl/orclk01.dbf

6       /home/oradata/orcl/plas01.dbf

7       /home/oradata/orcl/pl01.dbf

8       /home/oradata/orcl/help01.dbf

9       /home/oradata/orcl/adobelc01.dbf

10     /home/oradata/orcl/sms01.dbf

11     /home/oradata/orcl/plcrm01.dbf

[oracle@localhost oracle_cold]$

開始覆盖曾经的数据文件文件夹

[oracle@localhost oracle_cold]$ cp orcl_2/*.dbf/home/oradata/orcl/

[oracle@localhost oracle_cold]$

2.5 启动数据库

SQL> startup

ORACLE instance started.

Total System Global Area 5344731136 bytes

Fixed Size              2213136 bytes

Variable Size              3355446000 bytes

Database Buffers    1946157056 bytes

Redo Buffers                40914944 bytes

Database mounted.

Database opened.

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2.6 去主库上开启归档日志传输

SQL> ALTER system SET log_archive_dest_state_2='enable';

System altered.

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2.7 然后备库启动应用

select sequence#,applied fromv$archived_log order by sequence# asc;

SQL> alter database recovermanagedstandby database disconnect from session;

Database altered.

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SQL> select open_modefromv$database;

OPEN_MODE

--------------------

READ ONLY WITH APPLY

SQL>