SQL> select * from v$version;
 
BANNER
----------------------------------------------------------------
Oracle Database 10g Enterprise Edition Release 10.2.0.3.0 - 64bi
PL/SQL Release 10.2.0.3.0 - Production
CORE    10.2.0.3.0      Production
TNS for HPUX: Version 10.2.0.3.0 - Production
NLSRTL Version 10.2.0.3.0 - Production

SQL> SHUTDOWN IMMEDIATE;
SQL> STARTUP NOMOUNT;
SQL> alter system set control_files='<ASM location1>,<ASM location2>' scope=spfile sid='*';
Then, use RMAN to actually create the new control files in ASM.
RMAN> restore controlfile from '<your current location>';

SQL> SHUTDOWN IMMEDIATE;
SQL> STARTUP NOMOUNT;
SQL> alter system set control_files='<ASM NEW location1>,<ASM NEW location2>';
--We don't user spfile

$ rman nocatalog
RMAN>connect target /
RMAN> restore controlfile from '<ASM OLD location1>';

sql> alter database mount;
sql> alter database open;

C:\>SET ORACLE_SID=CMDB

C:\>SQLPLUS "/AS SYSDBA"

SQL*Plus: Release 10.2.0.4.0 - Production on Wed Mar 3 00:43:56 2010

Copyright (c) 1982, 2007, Oracle.  All Rights Reserved.


Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> show parameter control

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
control_file_record_keep_time        integer     7
control_files                        string      +DATAGROUP/cmdb/controlfile/cu
                                                 rrent.260.712629463
SQL>


RMAN> CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO 'E:\CMDB_%F';

new RMAN configuration parameters:
CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO 'E:\CMDB_%F';
new RMAN configuration parameters are successfully stored

RMAN> backup current controlfile;

Starting backup at 03-MAR-10
using channel ORA_DISK_1
channel ORA_DISK_1: starting full datafile backupset
channel ORA_DISK_1: specifying datafile(s) in backupset
including current control file in backupset
channel ORA_DISK_1: starting piece 1 at 03-MAR-10
channel ORA_DISK_1: finished piece 1 at 03-MAR-10
piece handle=F:\ORACLE\PRODUCT\10.2.0\DB_1\DATABASE\03L7JNQR_1_1 tag=TAG20100303T004827 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:02
Finished backup at 03-MAR-10

Starting Control File and SPFILE Autobackup at 03-MAR-10
piece handle=E:\CMDB_C-1036482901-20100303-01 comment=NONE
Finished Control File and SPFILE Autobackup at 03-MAR-10

RMAN>

RMAN> shutdown immediate

database closed
database dismounted
Oracle instance shut down

RMAN> exit


Recovery Manager complete.

C:\>SET ORACLE_SID=+ASM

C:\>asmcmd
ASMCMD>
ASMCMD> cd +DATAGROUP/cmdb/controlfile
ASMCMD> pwd
+DATAGROUP/cmdb/controlfile
ASMCMD> ls
Current.260.712629463

ASMCMD> rm Current.260.712629463
ASMCMD> exit

C:\>set oracle_sid=cmdb


SQL> alter system set control_files='+FRAGROUP' scope=spfile;

System altered.

SQL> show parameter control

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
control_file_record_keep_time        integer     7
control_files                        string      +DATAGROUP/cmdb/controlfile/cu
                                                 rrent.260.712629463
SQL> startup force nomount
ORACLE instance started.

Total System Global Area  612368384 bytes
Fixed Size                  1298160 bytes
Variable Size             167772432 bytes
Database Buffers          436207616 bytes
Redo Buffers                7090176 bytes
SQL>
SQL> show parameter control

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
control_file_record_keep_time        integer     7
control_files                        string      +FRAGROUP
SQL>

C:\>rman target /

Recovery Manager: Release 10.2.0.4.0 - Production on Wed Mar 3 00:53:24 2010

Copyright (c) 1982, 2007, Oracle.  All rights reserved.

connected to target database: CMDB (not mounted)

RMAN> restore controlfile from 'E:\CMDB_C-1036482901-20100303-01';

Starting restore at 03-MAR-10
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=157 devtype=DISK

channel ORA_DISK_1: restoring control file
channel ORA_DISK_1: restore complete, elapsed time: 00:00:15
output filename=+FRAGROUP/cmdb/controlfile/current.256.712630439
Finished restore at 03-MAR-10

RMAN> recover database;

Starting recover at 03-MAR-10
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=157 devtype=DISK

starting media recovery

archive log thread 1 sequence 2 is already on disk as file +DATAGROUP/cmdb/onlinelog/group_2.262.712629467
archive log filename=+DATAGROUP/cmdb/onlinelog/group_2.262.712629467 thread=1 sequence=2
media recovery complete, elapsed time: 00:00:03
Finished recover at 03-MAR-10


RMAN> alter database open resetlogs;

database opened

SQL> show parameter control

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
control_file_record_keep_time        integer     7
control_files                        string      +FRAGROUP/cmdb/controlfile/cur
                                                 rent.256.712630439