Convert Single İnstance To RAC

Hii All
I making some test in order to convert single instance to RAC.In the scenario;
1.Crs Installed on machine.Asm disks created (Node1)
2.Oracle database software installed with rac option on Node1 .but only with binaries no database has been created.
3.An auixilary instance created in Node1.
4.On Standalone machine Database copied via Rman Clone Active database feature to node1 in asm
5.Cloned database is working correctly on node1 as Standalone
6.Run dbca on Node1 and select single instance,select create template from running database and template saved
7.Run dbca again on Node1.Select create rac enabled database, template selected as saved before.
Database created successfuly in crs environment but dbca creates fresh database no data has been preserved
This convert way is possible ? Where am I wrong ?Why dbca erase all data and create new database ?
Which do you advise to me to perfom convert scenario ?
Crs and Oracle 11gR2 on Centos.
Best Regards

Hi Eb;
What is db version? What is OS?
Please see below notes which could be helpful for your issue:
How To Convert A Single Instance Database To RAC In A Cluster File System Configuration [ID 208375.1]
How to Convert 10g Single-Instance database to 10g RAC using Manual Conversion procedure [ID 747457.1]
Regard
Helios

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Convert single instance in Rac

Hello experts, I have already configured a cluster database between two nodes with a RAC database named Cars. Also I have a single instance database named Persons in the first of the nodes. Now I need convert this single instance(Persons) in a Rac database, that is I want to have two RAC database(Cars and the new Persons).
Thank you very much in advance.

Oracle provides following methods to convert a single instance database to RAC:
Grid Control
DBCA
Manual
RCONFIG(from 10gR2)
refer this link:
http://www.oracle.com/technology/pub/articles/chan_sing2rac_install.html(manual method)
http://oracleinstance.blogspot.com/2009/12/convert-single-instance-to-rac-instance.html(rconfig method)
http://onlineappsdba.com/index.php/2009/06/24/single-instance-to-rac-conversion/(using dbca)
http://oracleinstance.blogspot.com/2010/07/converting-single-instance-to-rac.html(using dbca)
for converting your filesystem to asm use RMAN:
refer: for converting the non-asm files to asm files using the steps as shown in the link
http://oracleinstance.blogspot.com/2009/12/migrate-from-database-file-system-to.html
hope, this helps you.
Rajeshkumar Govindarajan,
Oracle DBA,
http://oracleinstance.blogspot.com

Converting single ASM to RAC ASM

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Oracle 11gR2 RAC (convert single instance to RAC)

Hi,
Using Metalink Doc [ID 747457.1] I have converted single instance database running on 11gR2 to RAC (2 node) database 11gR2 with ASM. Its running fine, I am able to see the instances running on both nodes. But I am unable to login to the instance. It is connecting to ideal instance., but the instance is already running
oracle@hublhp1:/home/oracle$ export ORACLE_SID=cadtest1
oracle@hublhp1:/home/oracle$ sqlplus "/as sysdba"
SQL*Plus: Release 11.2.0.1.0 Production on Tue Nov 2 11:23:43 2010
Copyright (c) 1982, 2009, Oracle. All rights reserved.
Connected to an idle instance.
SQL>
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Instance cadtest1 is not running on node hublhp1
Instance cadtest2 is not running on node hublhp3
oracle@hublhp1:/home/oracle$ ps -ef | grep pmon
oracle 2407 1 0 15:28:21 ? 0:27 asm_pmon_+ASM1
oracle 4125 1 0 15:51:18 ? 0:36 ora_pmon_cadtest1
oracle 4973 3295 0 14:31:13 pts/1 0:00 grep pmon
oracle@hublhp1:/home/oracle$
I am able to stop/start the database using SRVCTL but I am not able to login to this instance. Can anyone please help me to find the issue or where & what to look at.
- Mano

Thank you so much, I did the following, but I still have the same issue, the instance is running on both nodes, but I am unable to stop/start the database using SRVCTL and I am unable to login using SQLPLUS.
oracle@hublhp1:/home/oracle$ *srvctl modify database -d cadtest -n cadtest -o $ORACLE_HOME -p +asmcdb01/cadtest/spfilecadtest.ora -a ASMCDB01,ASMCFR01*
oracle@hublhp1:/home/oracle$
oracle@hublhp1:/home/oracle$
oracle@hublhp1:/home/oracle$
oracle@hublhp1:/home/oracle$ srvctl config database -d cadtest -a
Database unique name: cadtest
Database name: cadtest
Oracle home: /app/oracle/rdbms/product/11.2.0
Oracle user: oracle
Spfile: +asmcdb01/cadtest/spfilecadtest.ora
Domain:
Start options: open
Stop options: immediate
Database role: PRIMARY
Management policy: AUTOMATIC
Server pools: cadtest
Database instances: cadtest1,cadtest2
Disk Groups: ASMCDB01,ASMCFR01
Services:
Database is enabled
Database is administrator managed
oracle@hublhp1:/home/oracle$
oracle@hublhp1:/home/oracle$
oracle@hublhp1:/home/oracle$ srvctl stop database -d cadtest
PRCC-1016 : cadtest was already stopped
oracle@hublhp1:/home/oracle$
oracle@hublhp1:/home/oracle$
oracle@hublhp1:/home/oracle$ srvctl status database -d cadtest
Instance cadtest1 is not running on node hublhp1
Instance cadtest2 is not running on node hublhp3
oracle@hublhp1:/home/oracle$
oracle@hublhp1:/home/oracle$
oracle@hublhp1:/home/oracle$ echo $ORACLE_SID
cadtest1
oracle@hublhp1:/home/oracle$
oracle@hublhp1:/home/oracle$
oracle@hublhp1:/home/oracle$ sqlplus "/as sysdba"
SQL*Plus: Release 11.2.0.1.0 Production on Tue Nov 2 15:31:55 2010
Copyright (c) 1982, 2009, Oracle. All rights reserved.
Connected to an idle instance.
SQL> exit
Disconnected
oracle@hublhp1:/home/oracle$
oracle@hublhp1:/home/oracle$
oracle@hublhp1:/home/oracle$
oracle@hublhp1:/home/oracle$

Convert single instance to rac on 11gr2

Hi,
I have 11gr2 database single instance running with ASM storage attached. i want to convert it into RAC on same server.
Can I take RMAN backup and restore in RAC ORACLE_HOME ? or do I need to go with rconfig or other steps?
Please let me know if have any good doc.
thanks

here is detail:
DB server =db1
installed oracle binary for non-RAC-oracle 11gr2.
installed oracle binary for rac-oracle and grid V 11gr2
dATABASE is running in non-rac oracle with ASM. I want to convert from Oracle single instance to RAC instance on same server on Linux RHEL5.4 platform.
Thanks

Verification of steps to convert Single Node to RAC

Hi Forum
I have a single node Oracle E-Biz 12.1.3 Installation.
We plan to convert this to a dual node RAC install and I wanted to run by the steps to perform this AND clone over the current production system to the new RAC system
(note this will not be using ASM - but will be based on NetApp NFS)
1. Install GRID 11.2.0.3
- installed acorss two nodes, Binaries can be shared
- voting disks / cluster rigistry MUST be shared
2. Install Database Software for RAC
- Binaries cannot be shared and must be installed on each node independently
3. Configure the GRID for database (database / listeners)
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I will be using SCAN - and therefore would expect all the web services / concurrent manager nodes to point to the SCAN hostname as opposed to individual host names,
Are there any decent technical notes out there that will help please?
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Hi,
I belive googling "single node to RAC" should give you a lot of articles and you can select any article based on your source database version and new version (11.2).
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FRM-40735 after converting single database to RAC

FRM-40735 and no ORA errors during connecting to rac via forms, but via plsql developer it works!
tnsnames and listener:
FUNTIK =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = rac1-vip)(PORT = 1521))
(ADDRESS = (PROTOCOL = TCP)(HOST = rac2-vip)(PORT = 1521))
(LOAD_BALANCE = yes)
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = FUNTIK)
FUNTIK2 =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = rac2-vip)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = FUNTIK)
(INSTANCE_NAME = FUNTIK2)
FUNTIK1 =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = rac1-vip)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = FUNTIK)
(INSTANCE_NAME = FUNTIK1)
LISTENERS_FUNTIK =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = rac1-vip)(PORT = 1521))
(ADDRESS = (PROTOCOL = TCP)(HOST = rac2-vip)(PORT = 1521))
1 node listener:
LISTENER_RAC1 =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = rac1-vip)(PORT = 1521)(IP = FIRST))
(ADDRESS = (PROTOCOL = TCP)(HOST = some_ip_address)(PORT = 1521)(IP = FIRST)
SID_LIST_LISTENER_RAC1 =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = /u01/app/oracle/product/10.2.0/db)
(PROGRAM = extproc)
2 node listener:
LISTENER_RAC2 =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = rac2-vip)(PORT = 1521)(IP = FIRST))
(ADDRESS = (PROTOCOL = TCP)(HOST = some_ip_address)(PORT = 1521)(IP = FIRST)
SID_LIST_LISTENER_RAC2 =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = /u01/app/oracle/product/10.2.0/db)
(PROGRAM = extproc)
)

FRM-40735 is raised when there is a trigger violation correct? Are you sure that the error is related to your connection to the Cluster? Do you have any more detail on the Forms error?

Converting single instance database(11gr2) supporting EBS 12.1.3 to 2 node RAC on RHEL.

Hi We are in the process of converting single instance database(11gr2) supporting EBS 12.1.3 to 2 node RAC on RHEL. Which version of RHEL is better? if its 6.x then x?? The oracle document only says RHEL update 6.
thanks in advance.

Hi,
Yes you can use any version but i recommend you to use 6.2
Also refer my post for RAC migration in EBS
Apps DBA Workshop: Using 11gR2 RAC with Oracle Applications R12.1.1
Hope this helps
thanks,
X A H E E R

How to convert single instance10g db to 11gR2 RAC with ASM

Hi,
I need your help to decide the plan about how to convert single instance 10g database to 11gr2 rac with asm.
I can have about 6 to 8 hours of downtime to upgrade and move to rac with asm.
db size is about 1.5tb and on AIX.
here is my plan....
1) install 11gr2 rac with asm on two nodes
2) verify rac installation and clustered asm
3)install 10g oracle binaries( yes 10g )
4) shutdown production db ( machine prod )
5) make copy of production and restore on 1st node ( using shadow image , so it's quick and its file system )
6) upgrade db to 11g ( still of file system )
7) after successful upgrade, move to asm ( rman backup )
8) add another node
does it look okay ? OR is there a better approach to save time?
can someone help me ?
Thanks...

Thanks ...
So here is what I thought... suggest if something is not right...
1) install 11gr2 grid infra on node A and B with ASM
2) stop CLUSTER ON BOTH NODES.
3) shutdown prod db on 10g ( downtime starts )
4) take rman cold backup
5) restore rman backup on node A on ASM ( as if single instance 11g , no rac parameters )
6) mount and run upgrade script for 11g, then open db with 11
7) after successful upgrade, shutdown db node A
8) change all rac related parameters, spfile,undo,redo for rac environment on both nodes
9) open db in rac environment
can I do this way ?
My only question is, even though I installed rac on node A and B, in step 5 and 6 I'm using only node A as if it is single instance. Is it possible ?
if it is then I'm good to go...
Thanks for all suggestions.

How to convert from single instance to RAC?

Hi, I have one environment it is version is 10.2.0.4 in linux SUSE.
I decided to move this environment to 10.2.0.4 Real applicaiton cluster has two nodes in linux red-hat.
Firstly,
I install 10.2.0.1 rac on two new machine in linux red hat.
Then I upgrade my rac to 10.2.0.4 from 10.2.0.
Now I want to move the single instance to RAC,
Is there an anathoer way that different from export , import?

Besides the obvious Export-Import which do not want to consider (although it would be the neatest method !), look the 4th conversion scenario under paragraph D.3.2 "Single-Instance to RAC Conversion Scenarios" at
http://download.oracle.com/docs/cd/B19306_01/install.102/b14203/cvrt2rac.htm#BABFCAHF
The 4th conversion scenario is "Converting a single-instance Oracle Database 10g Release 2 (10.2) to an 10g Release 2 (10.2) RAC database, running out of a different Oracle home, and where the host where the single-instance database is running is not one of the nodes of the RAC database".
Reference section D of the "Oracle® Database Oracle Clusterware and Oracle Real Application Clusters Installation Guide 10g Release 2 (10.2) for Linux"
http://download.oracle.com/docs/cd/B19306_01/install.102/b14203/toc.htm

Migrate from single instance to RAC manually

Hi,
I have a 10g database running in single instance.I have installed grid 11.2.0.2 in two nodes including the node where current instance is running,I have installed 10g again in a seperate mount point in both the nodes .It has the same patches as single instance 10g home.Now how to migrate from single instance to RAC manually.
Thanks,
Sekar

-restore this database into 11g ASM if its not already on ASM.
-upgrade this database to 11g from 10g on single instance.
-Now Converting Single Instance on a Cluster to Oracle RAC ,here you have different option to perform this once its 11g database after upgrade.
using rconfig
using dbca or manually.
see detail here
http://docs.oracle.com/cd/E11882_01/install.112/e24660/cvrt2rac.htm#autoId9

Migration from Single Node to RAC Node

Hi,
We are planning to migrate the Database from Single-Node to RAC Node. Are there any checklist list to be considered regarding Performance, System and Database ( or any other topic), before migrating to RAC.
Thanks

If it is already the same version, you will need to focus any "single-threadedness" of the application like sequences that are mandatory sequential, "semaphore-style" locking etc...
My experience is that going RAC and in particular to ASM can give a performance boost. If it is the same version (11gR2 for example) then any statistics-related performance issues will still be there.

Adjust parameters from single instance to RAC

Hi
I am carrying out a migration from single instance to RAC. I know there are a list of parameters that We have to adjust to keep the same or better performance moving from single instance to RAC. Can you post any link or something like that, that help to adjust the parameters ?
Thanks

user2931261 wrote:
Thanks
All is runing fine and the instaces are started. I set major of parameters of single instance but now I am getting a message that some of the parameters I set are DEPRECATED. How can I know what parameters are deprecated ?
ThanksORA-32004 obsolete and/or deprecated parameter(s) specified
Cause
One or more obsolete and/or parameters were specified in the SPFILE or the PFILE on the server side.
Action
See alert log for a list of parameters that are obsolete. or deprecated. Remove them from the SPFILE or the server side PFILE.
obsolete and/or deprecated parameter(s) in initDB.ora file. To find out which you could from SQL*PLUS, issue the following statement, to find the sinner.
SQL> select name, isspecified from v$obsolete_parameter where isspecified='TRUE';
refer:-http://oracleinstance.blogspot.com/2009/12/04-obsolete-andor-deprecated-parameters.html

How to convert single column into single row

I need to convert single column into single row having n no.of.values in a column. without using case or decode. I need a query to display as below.
emp_id
100
101
102
102
103
200
I need output like 100,101,102,103,104.........200.

I assume you want to convert 200 rows with one column into one row with 200 columns. If so, this is called pivot. If you know number of rows (max possible number of rows) and you are on 11G you can use PIVOT operator (on lower versions GROUP BY + CASE). Otherwise, if row number isn't known, you can use dynamic SQL or assemble select on clent side. Below is example emp_id = 1,2,..5 (to give you idea) and you are on 11G:
with emp as (
             select level emp_id
               from dual
               connect by level <= 5
select *
from emp
pivot(
        max(emp_id) for emp_id in (1 emp_id1,2 emp_id2,3 emp_id3,4 emp_id4,5 emp_id5)
   EMP_ID1    EMP_ID2    EMP_ID3    EMP_ID4    EMP_ID5
         1          2          3          4          5
SQL>
SY.

Convert single column into rows

hi Gurus,
I have one table test colums are id and name.
id number
name varchar2
data is like
id name
1 xy
2 xyy
3 mm
4 pp
Now my requirement is to convert single column id into rows
i,e my output should be of singel rows like :- 1,2,3,4
How to achive this result .
I dont have any idea to do this query.
Please help guys.
Thanks in advance.
Vijay

Well,
As long as your code doesn't have to run in production, simplest way is:
WM_CONCAT (but it's not documented)
or use XMLAGG, it's simpler than a connect by:
MHO%xe> with t as (
2 select 1 col, 'xy' str from dual union all
3 select 2, 'xyy' from dual union all
4 select 3, 'mm'from dual union all
5 select 4, 'pp' from dual union all
6 select 8, 'pp' from dual union all
7 select 12, 'pp' from dual union all
8 select 40, 'pp' from dual
9 )-- actual query, based on id's generated above:
10 select rtrim(xmlagg(xmlelement(e,col||',')).extract('//text()'),',') col
11 from t;
COL
1,2,3,4,8,12,40
1 rij is geselecteerd.

Convert Single İnstance To RAC

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