RAC和ASM环境下修改控制文件control file

1，目前控制文件只有一个，为了安全性，增加到3个

SQL> select name from v$controlfile;

NAME

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

+DATA/racdb/controlfile/current.283.914350675

2，执行如下sql

SQL> alter system set control_files = '+DATA/racdb/controlfile/control01.ctl','+DATA/racdb/controlfile/control02.ctl','+DATA/racdb/controlfile/control03.ctl' scope=spfile;

3，停止数据库

$ srvctl stop database -d racdb

4，复制控制文件

ASMCMD> pwd

+data/racdb/CONTROLFILE

ASMCMD> ls

current.283.914350675

ASMCMD> cp current.283.914350675 control01.ctl

copying +data/racdb/CONTROLFILE/current.283.914350675 -> +data/racdb/CONTROLFILE/control01.ctl

ASMCMD> cp current.283.914350675 control02.ctl

copying +data/racdb/CONTROLFILE/current.283.914350675 -> +data/racdb/CONTROLFILE/control02.ctl

ASMCMD> cp current.283.914350675 control03.ctl

copying +data/racdb/CONTROLFILE/current.283.914350675 -> +data/racdb/CONTROLFILE/control03.ctl

ASMCMD>

5，重新启动数据库

$ srvctl start database -d racdb

6，验证结果

SQL> select name from v$controlfile;

NAME

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

+DATA/racdb/controlfile/control01.ctl

+DATA/racdb/controlfile/control02.ctl

+DATA/racdb/controlfile/control03.ctl