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

Similar Messages

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>
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$ 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

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

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 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

Converting single ASM to RAC ASM

How i can convert single ASM to RAC ASM?

ASM1 is the name of single and clustered names as ASM1 +ASM2, now what is suggestion? I can shutdown single instance ASM. If ASM Is up , it should not delet , right???

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

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

Convert ASM single instance to RAC ASM instance...

Hi, all
Im installing OracleDatabase with RAC and I got an error on the Database Configuration Assistant that says "The ASM instance configured on the local node is a single instance. To manage this instance as a single-instance ASM restart DBCA and select the single instance database option. To manage this instance as RAC ASM, convert it to RAC ASM first".
How I can convert it??
Thanks

See the link below for converting a single instance ASM to RAC ASM. The link is to the Oracle® Database Oracle Clusterware and Oracle Real Application Clusters Installation Guide for Linux. If your platform is not Linux, check the Install Guide for your OS.
http://download-east.oracle.com/docs/cd/B19306_01/install.102/b14203/cvrt2rac.htm#BABJDAJG

Rconfig: converting a single instance to RAC instance

Hi,
I am trying to use the "rconfig" utility to convert a single instance to a RAC instance in an existing RAC cluster.
I have modified the .xml file, and am trying to run the conversion from the 1st node in the 2 node cluster (where the single instance resides).
The only error message i seem to be getting is below:
<Response>
<Result code="1" >
Operation Failed
</Result>
<ErrorDetails>
ORCL_DATA_ORCLCLN The specified diskgroup is not mounted.
</ErrorDetails>
</Response>
</Convert>
</ConvertToRAC></RConfig>
Now I dont really understand why I would be getting that message as the instance is up and running and ASM disk group is mounted on node1 at the time i run the rconfig command, though its not clear to me if I also need to somehow mount the ASM disk group on the second node prior to running the rconfig command??
node1:
bash-3.00$ asmcmd -p
ASMCMD [+] > lsdg
State Type Rebal Unbal Sector Block AU Total_MB Free_MB Req_mir_free_MB Usable_file_MB Offline_disks Name
MOUNTED EXTERN N N 512 4096 1048576 10181 7442 0 7442 0 ORCL_DATA_ORCLCLN/
node2:
ASMCMD [+] > lsdg
State Type Rebal Unbal Sector Block AU Total_MB Free_MB Req_mir_free_MB Usable_file_MB Offline_disks Name
I have attached the output of the alert log during the rconfig conversion of the target database, but it all looks pretty standard to me (keep in mind i am an oracle novice!).
alert.log
Completed: ALTER DATABASE OPEN
Thu Jul 23 13:51:55 2009
Shutting down instance (abort)
License high water mark = 2
Instance terminated by USER, pid = 15030
Thu Jul 23 13:51:57 2009
Starting ORACLE instance (normal)
LICENSE_MAX_SESSION = 0
LICENSE_SESSIONS_WARNING = 0
Interface type 1 e1000g1 10.128.113.0 configured from OCR for use as a cluster interconnect
Interface type 1 e1000g0 10.128.113.0 configured from OCR for use as a public interface
Picked latch-free SCN scheme 2
Using LOG_ARCHIVE_DEST_1 parameter default value as /u01/app/oracle/product/10.2.0/db_1/dbs/arch
Autotune of undo retention is turned on.
IMODE=BR
ILAT =18
LICENSE_MAX_USERS = 0
SYS auditing is disabled
ksdpec: called for event 13740 prior to event group initialization
Starting up ORACLE RDBMS Version: 10.2.0.2.0.
System parameters with non-default values:
processes = 150
__shared_pool_size = 121634816
__large_pool_size = 4194304
__java_pool_size = 4194304
__streams_pool_size = 0
sga_target = 440401920
control_files = +ORCL_DATA_ORCLCLN/control01.ctl
db_block_size = 8192
__db_cache_size = 306184192
compatible = 10.2.0.2.0
log_archive_format = %t_%s_%r.dbf
db_file_multiblock_read_count= 16
cluster_database = FALSE
cluster_database_instances= 1
db_recovery_file_dest_size= 2147483648
norecovery_through_resetlogs= TRUE
undo_management = AUTO
undo_tablespace = UNDOTBS1
remote_login_passwordfile= EXCLUSIVE
db_domain = netapp.com
job_queue_processes = 10
background_dump_dest = /u01/app/oracle/admin/orcldb/bdump/ORCLCLN
user_dump_dest = /u01/app/oracle/admin/orcldb/udump/ORCLCLN
core_dump_dest = /u01/app/oracle/admin/orcldb/cdump/ORCLCLN
db_name = ORCLCLN
open_cursors = 300
pga_aggregate_target = 145752064
Cluster communication is configured to use the following interface(s) for this instance
10.128.113.200
Thu Jul 23 13:51:59 2009
cluster interconnect IPC version:Oracle UDP/IP (generic)
IPC Vendor 1 proto 2
PMON started with pid=2, OS id=15085
DIAG started with pid=3, OS id=15091
PSP0 started with pid=4, OS id=15094
LMON started with pid=5, OS id=15097
LMD0 started with pid=6, OS id=15102
MMAN started with pid=7, OS id=15112
DBW0 started with pid=8, OS id=15114
LGWR started with pid=9, OS id=15116
CKPT started with pid=10, OS id=15125
SMON started with pid=11, OS id=15128
RECO started with pid=12, OS id=15130
CJQ0 started with pid=13, OS id=15134
MMON started with pid=14, OS id=15143
MMNL started with pid=15, OS id=15146
Thu Jul 23 13:52:03 2009
lmon registered with NM - instance id 1 (internal mem no 0)
Thu Jul 23 13:52:04 2009
Reconfiguration started (old inc 0, new inc 2)
List of nodes:
0
Global Resource Directory frozen
* allocate domain 0, invalid = TRUE
Communication channels reestablished
Master broadcasted resource hash value bitmaps
Non-local Process blocks cleaned out
Resources and enqueues cleaned out
Resources remastered 0
Set master node info
Submitted all remote-enqueue requests
Dwn-cvts replayed, VALBLKs dubious
All grantable enqueues granted
Post SMON to start 1st pass IR
Submitted all GCS remote-cache requests
Post SMON to start 1st pass IR
Reconfiguration complete
Thu Jul 23 13:52:04 2009
ALTER DATABASE MOUNT
Thu Jul 23 13:52:04 2009
Starting background process ASMB
ASMB started with pid=17, OS id=15157
Starting background process RBAL
RBAL started with pid=18, OS id=15169
Thu Jul 23 13:52:09 2009
SUCCESS: diskgroup ORCL_DATA_ORCLCLN was mounted
Thu Jul 23 13:52:13 2009
Setting recovery target incarnation to 2
Thu Jul 23 13:52:13 2009
Successful mount of redo thread 1, with mount id 4437636
Thu Jul 23 13:52:13 2009
Database mounted in Exclusive Mode
Completed: ALTER DATABASE MOUNT
Thu Jul 23 13:52:14 2009
ALTER DATABASE OPEN
Thu Jul 23 13:52:14 2009
Beginning crash recovery of 1 threads
Thu Jul 23 13:52:14 2009
Started redo scan
Thu Jul 23 13:52:14 2009
Completed redo scan
105 redo blocks read, 32 data blocks need recovery
Thu Jul 23 13:52:14 2009
Started redo application at
Thread 1: logseq 2, block 929
Thu Jul 23 13:52:15 2009
Recovery of Online Redo Log: Thread 1 Group 2 Seq 2 Reading mem 0
Mem# 0 errs 0: +ORCL_DATA_ORCLCLN/redo_2_1.log
Mem# 1 errs 0: +ORCL_DATA_ORCLCLN/redo_2_0.log
Thu Jul 23 13:52:15 2009
Completed redo application
Thu Jul 23 13:52:15 2009
Completed crash recovery at
Thread 1: logseq 2, block 1034, scn 613579
32 data blocks read, 25 data blocks written, 105 redo blocks read
Thu Jul 23 13:52:15 2009
Thread 1 advanced to log sequence 3
Thread 1 opened at log sequence 3
Current log# 1 seq# 3 mem# 0: +ORCL_DATA_ORCLCLN/redo_1_1.log
Current log# 1 seq# 3 mem# 1: +ORCL_DATA_ORCLCLN/redo_1_0.log
Successful open of redo thread 1
Thu Jul 23 13:52:15 2009
MTTR advisory is disabled because FAST_START_MTTR_TARGET is not set
Thu Jul 23 13:52:15 2009
SMON: enabling cache recovery
Thu Jul 23 13:52:17 2009
Successfully onlined Undo Tablespace 1.
Thu Jul 23 13:52:17 2009
SMON: enabling tx recovery
Thu Jul 23 13:52:17 2009
Database Characterset is WE8ISO8859P1
replication_dependency_tracking turned off (no async multimaster replication found)
Starting background process QMNC
QMNC started with pid=21, OS id=15328
Thu Jul 23 13:52:23 2009
Completed: ALTER DATABASE OPEN
Any help would be greatly appreciated!!!!

Ok,
So I managed to get the disk group mounted on the second node, and re-ran the rconfig process.
I got a little further, but encountered another error which is displayed below:
-bash-3.00$ rconfig racconv.xml
<?xml version="1.0" ?>
<RConfig>
<ConvertToRAC>
<Convert>
<Response>
<Result code="1" >
Operation Failed
</Result>
<ErrorDetails>
/u01/app/oracle/product/10.2.0/db_1/dbs Data File is not shared across all nodes in the cluster
</ErrorDetails>
</Response>
</Convert>
</ConvertToRAC></RConfig>
I am not using a shared oracle home, each node in the cluster has its own oracle installation residing on local disk. Is a shared oracle home a pre-requisite for usin rconfig?
I have provided the .xml file I am using below:
-bash-3.00$ cat racconv.xml
<?xml version="1.0" encoding="UTF-8"?>
<n:RConfig xmlns:n="http://www.oracle.com/rconfig"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.oracle.com/rconfig">
<n:ConvertToRAC>

<n:Convert verify="YES">

<n:SourceDBHome>/u01/app/oracle/product/10.2.0/db_1</n:SourceDBHome>

<n:TargetDBHome>/u01/app/oracle/product/10.2.0/db_1</n:TargetDBHome>

<n:SourceDBInfo SID="ORCLCLN">
<n:Credentials>
<n:User>oracle</n:User>
<n:Password>password</n:Password>
<n:Role>sysdba</n:Role>
</n:Credentials>
</n:SourceDBInfo>

<n:ASMInfo SID="+ASM1">
<n:Credentials>
<n:User>oracle</n:User>
<n:Password>password</n:Password>
<n:Role>sysdba</n:Role>
</n:Credentials>
</n:ASMInfo>

<n:NodeList>
<n:Node name="sol002"/>
<n:Node name="sol003"/>
</n:NodeList>

<n:InstancePrefix>ORCLCLN</n:InstancePrefix>

<n:Listener port=""/>

<n:SharedStorage type="ASM">

<n:TargetDatabaseArea></n:TargetDatabaseArea>

<n:TargetFlashRecoveryArea></n:TargetFlashRecoveryArea>
</n:SharedStorage>
</n:Convert>
</n:ConvertToRAC>
</n:RConfig>

11gr2 single instance to rac

I'm looking for information what the steps required to convert 11gr2 single instance to 2 nodes rac database for ECC 60 EHP7 (db 11.2.0.3 aix 7.1)
Every experience will be helpful.
regards
pablo

Hi,
You can refer to SAP Note 527843 - "Oracle RAC support in the SAP environment" and also check white papers and documnetations on SAP on Oracle Real Application Clusters (RAC) to obtain more information about how to configure an SAP system for RAC.
http://scn.sap.com/community/oracle -> Key Topics -> Oracle Real Application Clusters (RAC)
Regards,
Bíborka

Converting Single Instance database into Oracle Fail-Safe on Linux

Hi All,
We have single instance Oracle10g database running on Linux RHEL4. We are looking to convert this database into Oracle Fail-Safe (Active-Passive). Does any one have document for Oracle fail-safe setup?
Regards,
Tushar

Tushar,
you can't use software for windows on Linux.
However, there's number of ways to implement high-availability solution on Linux Oracle.
You can go with Active-Active (RAC) - which means that you'll have two servers attached to the same database at the same time. You can use either, and if one goes down(due to power failure for instance), the second will still be available.
You can go with Active-Passive (Data Guard) - which means that you'll have one of the nodes being active and the second passive, but synchronized with the first one, so in case of failure of the first node you can activate the second one.
You can also go with linux clustering - which is most similar to MCS + fail-safe - you'll have two nodes clustered with linux clustering software (RH cluseter suite for instance) and connected to shared storage. One node is active, and in case of crash database instance will be automatically started on the second node. This is beneficial because you can use your resources more efficiently. In case if you have two databases you can run each of them on dedicated server and then, in case of node failure move to another one. However, the setup of such configuration is quite cumbersome.

Single Instance to RAC on P570

I am looking for some help in the form of a best practice or how to document for migrating a single instance Oracle Env from HP-UX (I think it is HP Unix) to a multi-Node RAC Env on IBM P570 series servers. Current version is 9i and we will be going to 10gR2 and then potentially to 11g as well. I understand when going to P Series Servers that there are several considerations.

That's the easiest option. It will require the most down time when compared to others. Depending on the size, database, and requirements, it might be a viable option for you. Normally the amount of downtime required would not make it an option in most large shops.
I'm not sure why you would need to do any conversion to RAC after. You can directly import to a RAC database.

Migrate single instance to rac

Hi all
Currently i have installation Oracle SE (10.2.0.1) i want migrate to rac 2 x Oracle SE (10.2.0.3) ?
Can i use RMAN? or i must use exp/imp ? i have difrent version of oracle so i dont knew
Thanks

Hi,
well there are two ways to do that.
A) use the existing infrastructure and the database and adding additional nodes.
B) setup up new SYSTEM/HARWARE RAC environment and move single database instance to RAC.
which OS you are using.
why dont you upgrade your ORACLE or you can make use to transpotable tablespce also.
Regards
MMU

Convert single instance in Rac

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