Migrate Non-RAC(Standalone) to RAC

Hi,
Can anybody suggest me how to Migrate Non-RAC(Standalone) to RAC.
Thanks
ANUP

Hi Anup,
See this doc http://www.oracle.com/technology/pub/articles/chan_sing2rac_install.html
There are old threads in this forum about migration too.
Regards,
Rodrigo Mufalani

Similar Messages

Migrate to RAC from Standalone DB

Hi ALL,
We need to migrate from NON RAC to RAC , we have EBS R12 (12.1.2) and Database is 11gR2.
kindly suggest.
Thanks,

Hi;
In addition to Hussein Sawwan great post,please see our previous topic
Non RAC to RAC clonning
Cloning non-RAC to RAC ?
Non RAC to RAC clonning
Regard
Helios

Oracle Documentation to Migrate RAC to NON-RAC keeping ASM

Oracle Documentation to Migrate RAC to NON-RAC keeping ASM.

93a5de6e-a834-4d99-8192-dbc40f606ffd wrote:
Oracle Documentation to Migrate RAC to NON-RAC keeping ASM.
Surely all you need to do is set CLUSTER_DATABASE=FALSE, and start the instance from a non-RAC Oracle home. Then tidy up the cluster registry: use the srvctl utility to remove the RAC database, and add a non-RAC database. All done in ten minutes.
John Watson
Oracle Certified Master DBA

Steps to Convert R12 Non-Rac to RAC database with ASM

dear All,
We have following environment.
R12.0.6 with a non RAC 11.2.0.2 database on on AIX (64bit). Datafiles are stored local filesystem. We want to do the following.
Migrate the database file to ASM
convert database Non RAC to RAC
we have gone through many oracle support documents but were unable to decide which path we should adopt. Any body who has done similar activity; please share only highly level steps. No step by step Instructions are needed. e.g. Install Grid Infrastructure (for single instance or the one which comes with cluster home???????), Move datafiles to ASM etc etc
Please make sure the steps are for 11gR2 and EBS R12.
Best Regards,

we have gone through many oracle support documents but were unable to decide which path we should adopt. Any body who has done similar activity; please share only highly level steps. No step by step Instructions are needed. e.g. Install Grid Infrastructure (for single instance or the one which comes with cluster home???????), Move datafiles to ASM etc etc
Please make sure the steps are for 11gR2 and EBS R12. The steps in [ID 823587.1] which is referenced above should be sufficient (from your post, I understand that you have covered the steps in this doc) -- What exactly you have issues with?
Thanks,
Hussein

RAC enabled database binaries vs non-RAC enabled binaries

We have a 5 node cluster in which we will be installing Oracle database binaries onto and creating Oracle databases on, some of which will be standalone and most of which will be RAC enabled.
Is there a difference in 10g RDBMS binaries that are "cluster enabled" versus a single node 10g binary install? Can non-RAC enabled databases use the same set of RAC enabled database binaries? I don't want to install two Oracle home's....
Hopefully that question makes sense. Thanks in advance for your input.

(build1):/u01/oracle/product/10.1.0.5/dbrac/rdbms/lib> sqlplus "/ as sysdba"
SQL*Plus: Release 10.1.0.5.0 - Production on Mon Jun 22 11:28:56 2009
Copyright (c) 1982, 2005, Oracle. All rights reserved.
Connected to:
Oracle Database 10g Enterprise Edition Release 10.1.0.5.0 - 64bit Production
With the Partitioning, Real Application Clusters, OLAP and Data Mining options
1* select * from v$option where PARAMETER like '%Real%'
SQL> /
PARAMETER VALUE
Real Application Clusters TRUE
(build1):/u01/oracle/product/10.1.0.5/dbrac/rdbms/lib> nm -r libknlopt.a | grep -c kcsm.o
0
(build1):/u01/oracle/product/10.1.0.5/dbrac/rdbms/lib>
Well, this is a RAC database on AIX so not sure whether checking only libknlopt.a is enough on AIX.
I did not good answer from Oracle support also regarding same question.
I know, if I have RAC DB Binary installed and want to convert to Non RAC, you compile with rac_off option or even set cluster_database to false.
While confusing part is whether Reverse is TRUE i.e. if you have NON RAC DB Binary and then you relink with rac_on option and now you have RAC enabled true. I am not clear on this statement.

How to apply archivelogs from 2 node rac to non-rac

Is there any way to apply the archivelogs from 2 node RAC to sinlge node non-rac instance while migrating RAC to non-rac.
Could anyone clarify it?
-Shanlee

There's no "different way".
Each instance in RAC write's to it's own Redo Thread -- so each has it's own set of ArchiveLogs. In the log_archive_format specification %t is the thread identifier.
Oracle needs the ArchiveLogs from both Threads of the 2 node RAC. When you issue a RECOVER DATABASE, it applies them in the correct (interleaved) sequence.
What you have to do is to ensure that the ArchiveLogs of both threads are available on the new server.
Hemant K Chitale
Edited by: Hemant K Chitale on Jun 1, 2011 5:09 PM

Can a non-RAC database use SCAN ?

I have a 4 node 11gR2 cluster which has all different kinds of versions ( 10g ,11gR1 & 11gR2 ) on both RAC & NON RAC .
I know for sure that I can use SCAN for non 11gR2 databases for RAC databases .
For standalone db's It seems like it is working intermitently but is this supported ? the reason why I ask is there is no documentation on how to configure or troubleshoot for non-RAC using SCAN .
Appreciate your help
Ravi

I was trying to find some information about the issue, but i think SCAN is really designed for RAC databases.
You don't really need to use the SCAN for what you just described:
you can update the client tnanames with the vip addresses of all nodes with FAILOVER = ON
Example:
(DESCRIPTION=
(ADDRESS_LIST=
(ADDRESS=(PROTOCOL=TCP)(HOST=node1-vip)(PORT=1521))
(ADDRESS=(PROTOCOL=TCP)(HOST=node2-vip)(PORT=1521))
(ADDRESS=(PROTOCOL=TCP)(HOST=node3-vip)(PORT=1521))
(ADDRESS=(PROTOCOL=TCP)(HOST=node4-vip)(PORT=1521))
(FAILOVER = ON)
(CONNECT_DATA=(SERVER = DEDICATED)(SERVICE_NAME=DB.WORLD))
However, you can try this (i never tried it, but i think it should work):
- See the document http://download.oracle.com/docs/cd/E11882_01/install.112/e10813/undrstnd.htm#BEICFAIC
+... If you do not set LOCAL_LISTENER, then the Database Agent automatically keeps the database associated with the Grid home's node listener updated...+
So don't set the LOCAL_LISTENER in your db.
- Update the client tnsnames with the SCAN if the version of the database is 11.2.0.1
- Try to see if it works fine
- Move your db to another node and try again

Why migrate to RAC

Just to get a taste of RAC I have installed 11gR1, 11gR2 RAC 2-3 times on VMware 2 virtualized environment, I am now ready for actual migrations to RAC but it is not going to be easy. None of databases in our Prod are RAC databases. All databases run on multiprocessor machines which are fairly powerful. Current setup provides some safety from server failure by maintaining a passive server in tandem though OS/hardware mirroring ( I am not quite sure how but oracle is not in picture) .
I want to convince my manager that we should make a move to RAC. What points can be brought up .
In my own opinion any application can benefit RAC if it is to support more users, more sessions (Scalability) . if more batchjobs can be run in parallel then servers can be loaded more heavily. We can use the current redundancy provided by passive servers by making them active nodes and taking benefit of their dormant capacity.
What other benefits are there ? The generic question can be what application will benefit from migration to RAC.
Regards,

Online transaction processing (OLTP) and Internet application environments are characterized by short transactions that cannot be further broken down and, therefore, no speedup can be achieved. However, by deploying greater amounts of resources, a larger volume of transactions can be supported without compromising the response.
Decision support systems (DSS) and parallel query options can attain speedup, as well as scaleup, because they essentially support large tasks without conflicting demands on resources. The parallel query capability within the Oracle database can also be leveraged to decrease overall processing time of long-running queries and to increase the number of such queries that can be run concurrently.- High Availability - because you have many servers ,upgrade Hardware you can upgrade on each node.
- Rolling Upgrade
- load balance
- scalability
- mange database service
etc
http://www.nyoug.org/Presentations/2006/September_NYC_Metro_Meeting/200609Zito_You%20Probably%20DO%20Need%20RAC.pdf
http://en.wikipedia.org/wiki/Oracle_RAC
Good Luck

Duplicate RAC to non RAC database issue

Hi gurus,
Database version:Oracle 11.2.0.3
OS: Redhat 5.3
Im trying to cloning a RAC (2 nodes with asm) to non-RAC standalone database following this:
http://vsavenkov.oradba.ru/RAC2nonRAC.htm
I created the standalone database and modify the spfile, and i can connect without problems. At RAC we do backups everyday so i don't have to create a new one
My doubst are:
1) how to copy backup (they are in +FRA) to the other server? I imagine that the backup should have in both places, (standalone server and RAC server).
2)I'm going to use this script to clone but don't know how to check the SCN from backup. I will need the backup from 3 days ago, not today backup.
duplicate target database to 'Oasis' db_file_name_convert=('+FRA/grid/datafile/','/var/oracle/oradata/Oasis/')
logfile
group 1('/var/oracle/oradata/Oasis/REDO01.LOG') size 200M,
group 2 ('/var/oracle/oradata/Oasis/REDO02.LOG') size 200M,
group 3 ('/var/oracle/oradata/Oasis/REDO03.LOG') size 200M
until scn=XXXXXX ;
Thanks in advance

I just found how to resolve question 1):
asmcmd: cp.....
http://docs.oracle.com/cd/E11882_01/server.112/e18951/asm_util003.htm#CHDJEIEA
*I promise that i was looking for it at google but with incorrects words.

Can I use data guard to create a RAC standby database for a non RAC primary

Hi,
we need to RAC our production database but the normal methods will mean a long outage. It is possible to create a standby as a single node RAC database and when ready do a graceful failover to the standby database and open it for business. The next step would be to create another RAC node from this on the original server.
servers are already cluster aware, using ASM etc
Oracle 10.2

Yes, you will be able to setup RAC stnadby for a non-RAC Primary. For primary it just needs a available destination for redo shipping it doesn't matter whether it's RAC enabled or not. And ofcourse you are using 10.2 anyway only one node will be running MRP and that is too in standby mount mode.
However since you have are using You may follow below sequence.
1. Setup a new standby as RAC enabled.
2. Perform a switchover.
3. Shutdown the Old primary (which is standby now).
4. Install CRS and RDBMS on the old primary and it's new node.
5. Modify the cluster_database=TRUE and cluster_database_instances=<required number of instances>.
With above modification mount the standby database in standby mode and start MRP.
6. Introduce the database and instances to the OCR using SRVCTL add command.
7. Once you your database is synchronized with Primary do a switchover.
9. Now you can repeat step 3 to 6 on the other site too. <- if you need your secondary site to be RAC enabled too
10. Finally both the sites should be RAC enabled.
Hope this is helpful!!!
Thanks,
Asif Haliyal

Steps to do the R12 on 11.2.0.2 RAC to Non-Rac cloning on Win2008 64bit

Please brief the steps to do the R12 on 11.2.0.2 RAC to Non-Rac cloning on Windows 2008 64-bit.
There is a metalink document but that says it for linux environment but not windows. Please brief the steps if someone has done it on windows.

ora-appsdba wrote:
Please brief the steps to do the R12 on 11.2.0.2 RAC to Non-Rac cloning on Windows 2008 64-bit.
There is a metalink document but that says it for linux environment but not windows. Please brief the steps if someone has done it on windows.
The steps should be the same for Windows (with minor changes, like you may need to create Oracle service before duplicating the database).
Cloning Oracle Applications Release 12 with Rapid Clone [ID 406982.1]
Rapid Clone Documentation Resources For Release 11i and 12 [ID 799735.1]
Cloning Oracle E-Business Suite Release 12 RAC-Enabled Systems with Rapid Clone [ID 559518.1]
Certified RAC Scenarios for E-Business Suite Cloning [ID 783188.1]
Thanks,
Hussein

Instnce name in non-RAC environment

Hi!
In non-RAC environment V$INSTANCE.INSTANCE_NAME does not actually displays the name of the instance,that was set in INSTANCE_NAME parameter.
It always displays DB_NAME instead.
Is it any way to get instance_name that has service user connected to in this environment?
LSNRCTL for 32-bit Windows: Version 10.2.0.4.0 - Production on 28-JAN-2010 09:16:25
Copyright (c) 1991, 2007, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=vegas)(PORT=1524)))
STATUS of the LISTENER
Alias LISTENER
Version TNSLSNR for 32-bit Windows: Version 10.2.0.4.0 - Production
Start Date 28-JAN-2010 09:15:36
Uptime 0 days 0 hr. 0 min. 48 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File D:\oracle\db\product\10.2.0\network\admin\listener.ora
Listener Log File D:\oracle\db\product\10.2.0\network\log\listener.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=vegas)(PORT=1524)))
Services Summary...
Service "EMCOR" has 1 instance(s).
Instance "INST0", status READY, has 1 handler(s) for this service...
Service "EMCOR_XPT" has 1 instance(s).
Instance "INST0", status READY, has 1 handler(s) for this service...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "RESXDB" has 1 instance(s).
Instance "INST0", status READY, has 1 handler(s) for this service...
Service "SRV1" has 1 instance(s).
Instance "INST0", status READY, has 1 handler(s) for this service...
Service "SRV2" has 1 instance(s).
Instance "INST0", status READY, has 1 handler(s) for this service...
The command completed successfully
And SQLPLUS said
C:\Documents and Settings\oradba>sqlplus
SQL*Plus: Release 10.2.0.4.0 - Production on Thu Jan 28 09:44:59 2010
Copyright (c) 1982, 2007, Oracle. All Rights Reserved.
Enter user-name: emcos@emcor_srv2
Enter password:
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
09:45:04 EMCOS@emcor_srv2 >select name from v$database;
NAME
EMCOR
Elapsed: 00:00:00.00
09:45:07 EMCOS@emcor_srv2 >select instance_name from v$instance;
INSTANCE_NAME
emcor
Elapsed: 00:00:00.01
09:45:21 EMCOS@emcor_srv2 >select service_name from v$session where sid=(select unique sid from v$mystat);
SERVICE_NAME
SRV2

Hemant K Chitale wrote:
The documentation on INSTANCE_NAME in the 10gR2 Reference says :
"In a single-instance database system, the instance name is usually the same as the database name."
(this after
"In a Real Application Clusters environment, multiple instances can be associated with a single database service. Clients can override Oracle's connection load balancing by specifying a particular instance by which to connect to the database. INSTANCE_NAME specifies the unique name of this instance.")
This would imply that setting INSTANCE_NAME in non-RAC is ignored. The usage of the word "usually" is weak.
Hemant K ChitaleBut what do says lsnrctl - it says that it is not weak
11:33:28 SYS@EMCOR_SRV1 >show parameter instance_name
NAME TYPE VALUE
instance_name string INST0
11:33:36 SYS@EMCOR_SRV1 >host lsnrctl status
LSNRCTL for 32-bit Windows: Version 10.2.0.4.0 - Production on 28-JAN-2010 11:33:50
Copyright (c) 1991, 2007, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=vegas)(PORT=1524)))
STATUS of the LISTENER
Alias LISTENER
Version TNSLSNR for 32-bit Windows: Version 10.2.0.4.0 - Production
Start Date 28-JAN-2010 09:15:36
Uptime 0 days 2 hr. 18 min. 14 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File D:\oracle\db\product\10.2.0\network\admin\listener.ora
Listener Log File D:\oracle\db\product\10.2.0\network\log\listener.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=vegas)(PORT=1524)))
Services Summary...
Service "EMCOR" has 1 instance(s).
Instance "INST0", status READY, has 1 handler(s) for this service...
Service "EMCOR_XPT" has 1 instance(s).
Instance "INST0", status READY, has 1 handler(s) for this service...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "RESXDB" has 1 instance(s).
Instance "INST0", status READY, has 1 handler(s) for this service...
Service "SRV1" has 1 instance(s).
Instance "INST0", status READY, has 1 handler(s) for this service...
Service "SRV2" has 1 instance(s).
Instance "INST0", status READY, has 1 handler(s) for this service...
The command completed successfully
11:33:50 SYS@EMCOR_SRV1 >select sys_context('USERENV','INSTANCE_NAME') from dual;
SYS_CONTEXT('USERENV','INSTANCE_NAME')
emcor
Elapsed: 00:00:00.00
11:34:42 SYS@EMCOR_SRV1 >select service_name from v$session where sid=sys_context('USERENV','SID');
SERVICE_NAME
SRV1
Best regards, Sergey

The CSSD does not start automatically on Non-RAC - AIX 5L

Hi all,
Database: Oracle 10.2.0.4
O.S AIX 5.3 TL 10
I am facing a problem with the CSSD Non-RAC/Clusterware.
When we restarted the server the service CSSD does not start automatically and there is no relevant messages in the log files of CSSD.
Running the "localconfig reset $ORACLE_HOME", execute successfully but does not start the CSSD.
Running "/etc/init.cssd start" - does not work, nothing happens when we run it
I manually ran "/etc/ init.cssd run" and the service CSSD (ossd.bin) was started without errors.
No errors on errpt from AIX.
I've opened a SR but I am waiting for response from Oracle.

Hi,
I believe this problem is not with Oracle, but in AIX.It may be that one process that is starting on boot is holding the other process. You need to identify what is process/application.
Check the process on inittab that are already active and which are inactive they should be active.
One clue: Is very common process that is initiated in wait mode hold the boot server.
wait
When the init command enters the run level that matches the entry's run level,
start the process and wait for its termination.
All subsequent reads of the /etc/inittab file while the init
command is in the same run level will cause the init command to ignore this entry.http://publib.boulder.ibm.com/infocenter/aix/v6r1/index.jsp?topic=/com.ibm.aix.files/doc/aixfiles/inittab.htm
Regards,
Levi Pereira

Best way to have resizeable LUNS for datafiles - non RAC system

All,
(thanks Avi for the help so far, I know its a holiday there so I wait for your return and see if any other users can chip in also)
one of our systems (many on the go here) is being provided by an external vendor - I am reviewing their design and I have some concerns about the LUN's to house the datafiles:
they dont want to pre-assign full size luns - sized for future growth - and want more flexibility to give each env less disk space in the beginning and allocate more as each env grows
they are not going to use RAC (the system has nowhere near the uptime/capacity reqs - and we are removing it as it has caused enormous issues with the previous vendors and their lack of skills with it - we want simplicity)
They have said they do not want to use ASM (I have asked for that previously I think they have never used it before - I may be able to change their minds on this but they are saying as not RAC not needed)
but they are wondering how they give smaller luns to the env and increase size as they grow - but dont want to forever be adding /u0X /u0Y /u0Z extra filesystems (ebusiness suite rapidclone doesn't like working with many filesystem anyway and I find it unelegant to have so many mount points)
they have suggested using large ovm repo's and serving the data filesystems out of that (i have told them to use the repo's just for the guest OS's and use direct phy's attached luns for datafiles (5TB of them)
now they have suggested creating a large LUN (large enuogh for many envs at the same time [dev / test1 / test2 etc]) .... and putting OCFS2 on it so that they can mount it to all the domU/guest's and they can allocate space as needed uot of that:
so that they have guests/VM's (DEV1 - DEV2 - TEST1 say) (all seperate vm's) and all mounting the same OCFS2 cluster filesystem (as /u01 maybe) and they can share that for the datafiles under a sep dir so that each DB VM would see:
/u01/ and as subdirectories to that DEV1 DEV2 TEST1 so:
/u01/DEV1
/u01/DEV2
/u01/TEST1
and only use the right directory for each guests datafiles (thus sharing the space in u01(the big LUN) as needed per env)....
i really dont like that as each guest is going to have the same oracle unix user details and able to write to each other dir's - id prefer dedicated LUNS for each VM - not mounted to many VM's
so I am looking for a way to suggest something better....
should I just insist on ASM (but this is a risk as I fear they are not experienced with it)
or go with OEL/RHEL LVM and standard ext filesystems that can be extended - what are the risks with this? (On A Linux Guest For OVM, Which Partitions Can Be LVM? [ID 1080783.1]) - seems to say there is little performance impact
or is there another option?
Thanks all
Martin
Edited by: Martin Brambley on 11-Jun-2012 08:53

Martin, what route did you end up going?
We are about to deploy several hundred OEL VMs that are going to run non-RAC database instances. We don't plan to use ASM either. Our plan right now is to use one large 3TB LUN virtual disk to carve out the operating system space for the VMs and then have a separate physical attached LUN for each VM that will host a /u01 filesystem using LVM. I have concerns with this as we don't know how much space /u01 will ultimately need and if we end up having to extend /u01 on all of these VMs, that sounds like it will be messy. Right now I've got 400 separate 25gb LUNs presented to all of my OVM servers that we plan to use for /u01 filesystems.

Rac to non rac standby file name convert option

Hi,
Rac to non rac with ASM both, please find the below details.
Primary Setup.
diskgroup NAME for all files for both primary and standby +DATA
pmon,unique and service name at standby-rac1, rac2
db version -11.2.0.1
platform - HP -UX
$ ps -ef | grep pmon
oracle11 22329 1 0 22:33:55 ? 0:28 ora_pmon_rac1
oragrid 23522 1 0 Jan 2 ? 1:30 asm_pmon_+ASM1
$ ps -ef | grep pmon
oracle11 22329 1 0 22:33:55 ? 0:28 ora_pmon_rac2
oragrid 23522 1 0 Jan 2 ? 1:30 asm_pmon_+ASM2
database and Unique name - RAC, so all files on ASM created under +DATA/RAC
Stanby setup
diskgroup NAME for all files for both primary and standby +DATA
pmon,unique and service name at standby- racdr
$ ps -ef | grep pmon
oracle11 22329 1 0 22:33:55 ? 0:28 ora_pmon_racdr
oragrid 23522 1 0 Jan 2 ? 1:30 asm_pmon_+ASM
database name and unique name is racdr, so all files on ASM created under DATA/racdr when cloned with RMAN from primary backup. (by settling log_file and db_file covert from DATA/RAC to +DATA/racdr )
so now everything ok... but how do we create a new datafiles at primary for the above setting success, ??? and reflect on standby ???.
1.create tablespace tbs size 10g;
2.create tablespace tbs datafile '+/DATA/RAC/test.dbf size 10g; ??
3.create tablespace tbs datafile '+/DATA size 10g;???
4. directories name on asm and specifying on the convert options is case sensitive ???
Thanks in advance...

thats fine john,
log_file and db_file covert from '+DATA/RAC', '+DATA/racdr'
my primary is rac
my standby us racdr
so i mentioned above folders on convert option, so if i created datafile with or without specifying a diskgroup like mentione below, with or without specifying the directory like below
will all create on under '+DATA/racdr' diskgroup ??
create tablespace test DATA size10m; --> not specidying a full path as DATA/RAC' so will it go to DATA/racdr' ?? or creating under DATA ?diskgroup on standby????
Thanks,

Migrate Non-RAC(Standalone) to RAC

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