RAC+ASM 添加控制文件
2024-10-18 21:10:45
环境介绍：11g RAC 使用 ASM 磁盘组，控制文件只有一个，需要进行添加
参照 MOS 文档
How to Multiplex Control File In RAC Database (文档 ID 1642374.1)- 查看数据库版本
SQL> select * from v$version;
BANNER
--------------------------------------------------------------------------------
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
PL/SQL Release 11.2.0.4.0 - Production
CORE 11.2.0.4.0 Production
TNS for Linux: Version 11.2.0.4.0 - Production
NLSRTL Version 11.2.0.4.0 - Production
- 查看控制文件
SQL> select name from v$controlfile;
NAME
--------------------------------------------------------------------------------
+DATA01/rac/controlfile/current.256.955886921
- 修改控制文件参数，添加新的磁盘组
SQL> alter system set control_files='+DATA01/rac/controlfile/current.256.955886921', '+FRA' scope=spfile sid='*;
- 关闭 RAC 数据库实例，然后启动到 nomount 状态
[grid@rac1 ~]$ srvctl stop database -d rac
[grid@rac1 ~]$ srvctl start database -d rac -o nomount
- 检查 control_files 参数
SQL> show parameter control_files
NAME TYPE VALUE
-------------- ------------ -------------------------------------------------
control_files string +DATA01/rac/controlfile/current.256.955886921,+FRA
- 在其中一个节点上启动 RMAN，使用 restore 命令复制一份控制文件
[oracle@rac1 ~]$ rman target /
Recovery Manager: Release 11.2.0.4.0 - Production on Fri Sep 29 17:11:09 2017
Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
connected to target database: rac (not mounted)
RMAN> restore controlfile from '+DATA01/rac/controlfile/current.256.955886921';
Starting restore at 2017-09-29 17:16:00
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=1123 instance=rac1 device type=DISK
channel ORA_DISK_1: copied control file copy
output file name=+DATA01/rac/controlfile/current.256.955886921
output file name=+FRA/rac/controlfile/current.266.955991761
Finished restore at 2017-09-29 17:16:01
- 修改 control_files 参数
SQL> alter system set control_files='+DATA01/rac/controlfile/current.256.955886921','+FRA/rac/controlfile/current.266.955991761' scope=spfile sid='*';
- 关闭数据库，然后正常启动
[grid@rac1 ~]$ srvctl stop database -d rac
[grid@rac1 ~]$ srvctl start database -d rac
- 验证是否添加成功
SQL> show parameter control_files
NAME TYPE VALUE
-------------- ------------ -------------------------------------------------
control_files string +DATA01/rac/controlfile/current.256.955886921,+FRA/rac/controlfile/current.266.955991761
SQL> select name from v$controlfile;
NAME
--------------------------------------------------------------------------------
+DATA01/rac/controlfile/current.256.955886921
+FRA/rac/controlfile/current.266.955991761
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