Oracle June 15, 2011 2

Moving SPFILE from file system to ASM (ORACLE RAC11g)

  • There are two nodes in oracle RAC database [rac1] and [rac2]
  • Below tasks has to be executed from the first node [rac1]

1. Create spfile in ASM “+RACDB_DATA” disk group

SQL> connect / as sysdba
SQL> show parameter spfile

------- ------- ------------------------------
spfile string /u01/app/oracle/product/11.2.0/db_1/dbs/spfileracdb11.ora

SQL> create pfile='/u01/app/oracle/product/11.2.0/db_1/dbs/initracdb11.ora' from spfile='/u01/app/oracle/product/11.2.0/db_1/dbs/spfileracdb11.ora';
#Or simply:
SQL> create pfile from spfile
File created.

SQL> create spfile='+RACDB_DATA' from pfile='/u01/app/oracle/product/11.2.0/db_1/dbs/initracdb11.ora';
File created.

SQL> exit

2. New spfile has been created in ASM

[grid@rac1 ~]$ asmcmd

ASMCMD> ls RACDB_DATA/racdb1/spfile*

ASMCMD> exit

3. Modify initracdb11.ora on rac1 and initracdb12.ora on rac2 files to point to location in ASM

[oracle@rac1 dbs]$ echo "SPFILE='+RACDB_DATA/racdb1/spfileracdb1.ora'" > /u01/app/oracle/product/11.2.0/db_1/dbs/initracdb11.ora
[oracle@rac1 dbs]$ ssh rac2 "echo \"SPFILE='+RACDB_DATA/racdb1/spfileracdb1.ora'\" > /u01/app/oracle/product/11.2.0/db_1/dbs/initracdb12.ora"

4. Update OCR with new SPFILE location

[oracle@rac1 dbs]$ srvctl modify database -d racdb1 -p +RACDB_DATA/racdb1/spfileracdb1.ora

5. Rename any existing spfiles in $ORACLE_HOME/dbs

[oracle@rac1 dbs]$ mv /u01/app/oracle/product/11.2.0/db_1/dbs/spfileracdb11.ora /u01/app/oracle/product/11.2.0/db_1/dbs/spfileracdb11.ora_bak

[oracle@rac1 dbs]$ ssh rac2 "mv /u01/app/oracle/product/11.2.0/db_1/dbs/spfileracdb12.ora /u01/app/oracle/product/11.2.0/db_1/dbs/spfileracdb12.ora_bak"

6. Restart all instances to switch to new SPFILE

[oracle@rac1 dbs]$ srvctl stop database -d racdb1
[oracle@rac1 dbs]$ srvctl start database -d racdb1

[oracle@rac1 dbs]$ srvctl status database -d racdb1
Instance racdb11 is running on node rac1
Instance racdb12 is running on node rac2

7. Connect to the database and verify spfile parameter:

[oracle@racdb1 dbs]$ <strong>connect / as sysdba</strong>

SQL> SHOW parameter spfile

------ ----------- ------------------------------
spfile string +RACDB_DATA/racdb1/spfileracdb 1.ora