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這篇文章主要介紹“Oracle 怎么增加控制文件副本”，在日常操作中，相信很多人在 Oracle 怎么增加控制文件副本問題上存在疑惑，丸趣 TV 小編查閱了各式資料，整理出簡單好用的操作方法，希望對大家解答”Oracle 怎么增加控制文件副本”的疑惑有所幫助！接下來，請跟著丸趣 TV 小編一起來學習吧！
1. 文檔目標
新建的數據庫只有一個控制文件副本，希望增加控制文件副本到不同位置，防止控制文件發生損壞。
2. 修改 control_files 參數
# 如果使用了 OMF 則可以在修改參數時只指定路徑，無需指定絕對路徑，是否使用 OMF 即是否設置了 db_create_file_dest 參數。SYS@honor1 show parameter control_files;
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
control_files string +DATADG/honor/controlfile/current.260.984508003
control_management_pack_access string DIAGNOSTIC+TUNING
SYS@honor1 alter system set control_files= +DATADG/honor/controlfile/current.260.984508003 , +datadg scope=spfile sid= *
System altered.
Elapsed: 00:00:00.01
SYS@honor1 shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
10:16:35 SYS@honor1 exit3. 使用 RMAN 利用現有 controlfile 創建副本
（1）創建控制文件副本
[oracle@db-oracle-node1 ~]$ rman target /
Recovery Manager: Release 11.2.0.4.0 - Production on Mon Dec 9 10:17:27 2019
Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
connected to target database (not started)
RMAN startup nomount;
Oracle instance started
Total System Global Area 521936896 bytes
Fixed Size 2254824 bytes
Variable Size 440403992 bytes
Database Buffers 75497472 bytes
Redo Buffers 3780608 bytes
RMAN restore controlfile from +DATADG/honor/controlfile/current.260.984508003
Starting restore at 09-DEC-19
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=34 instance=honor1 device type=DISK
channel ORA_DISK_1: copied control file copy
output file name=+DATADG/honor/controlfile/current.260.984508003
output file name=+DATADG/honor/controlfile/current.294.1026555549
Finished restore at 09-DEC-19
RMAN alter database mount;
database mounted
released channel: ORA_DISK_1
RMAN alter database open;
database opened
RMAN exit
Recovery Manager complete.（2）查看 control_files 參數
[oracle@db-oracle-node1 ~]$ sqlplus / as sysdba
SQL*Plus: Release 11.2.0.4.0 Production on Mon Dec 9 10:41:18 2019
Copyright (c) 1982, 2013, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,
Data Mining and Real Application Testing options
SYS@honor1 show parameter control_files;
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
control_files string +DATADG/honor/controlfile/curr
ent.260.984508003, +DATADG/hon
or/controlfile/current.294.102
6555549到此，關于“Oracle 怎么增加控制文件副本”的學習就結束了，希望能夠解決大家的疑惑。理論與實踐的搭配能更好的幫助大家學習，快去試試吧！若想繼續學習更多相關知識，請繼續關注丸趣 TV 網站，丸趣 TV 小編會繼續努力為大家帶來更多實用的文章！
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