10g ASM下修改control file的位置

1.查看位置以及name是否正确

SQL> sho parameter name

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
db_file_name_convert                 string
db_name                              string      orcl
db_unique_name                       string      orcl
global_names                         boolean     FALSE
instance_name                        string      orcl
lock_name_space                      string
log_file_name_convert                string
service_names                        string      orcl
SQL> show parameter control

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
control_file_record_keep_time
control_files                        string      +DG1/orcl/controlfile/current.
                                                 261.851893233, +DG1/orcl/contr
                                                 olfile/current.260.851893233

2.关闭数据库，关闭数据库之前一定做好备份哦

SQL> shutdown immediate
Database closed.
Database dismounted.
ORACLE instance shut down.

3.启动数据库到mount状态

SQL> startup mount
ORACLE instance started.

Total System Global Area  bytes
Fixed Size                   bytes
Variable Size              bytes
 bytes
Redo Buffers                bytes
Database mounted.

4.备份一个新的control file，并修改control file的位置

SQL> alter database backup controlfile to '+DG1/orcl/controlfile/controlfile03';

Database altered.

SQL> alter system set control_files='+DG1/orcl/controlfile/current.261.851893233','+DG1/orcl/controlfile/controlfile03' scope=spfile;

System altered.

5.关闭数据库，再启动，再检查

SQL> shutdown immediate
ORA: database not open

Database dismounted.
ORACLE instance shut down.
SQL> startup
ORACLE instance started.

Total System Global Area  bytes
Fixed Size                   bytes
Variable Size              bytes
 bytes
Redo Buffers                bytes
Database mounted.
Database opened.
SQL> show parameter name

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
db_file_name_convert                 string
db_name                              string      orcl
db_unique_name                       string      orcl
global_names                         boolean     FALSE
instance_name                        string      orcl
lock_name_space                      string
log_file_name_convert                string
service_names                        string      orcl
SQL> show parameter control

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
control_file_record_keep_time
control_files                        string      +DG1/orcl/controlfile/current.
                                                 261.851893233, +DG1/orcl/contr
                                                 olfile/controlfile03