Oracle Rac as part of OSDB Migration

Hello Gurus,
We are going ahead with OSDB Migration from HP-UX to Linux. Here as HA solution, we plan to implement Oracle RAC on the target systems. Where as the current environment is non RAC.
As part of OSDB migration we are not confident in doing it on Oracle RAC. Documentation for Oracle RAC on SAP explains first go for single instance installation on oracle cluster filesystem and implement RAC as a high availability solution with SAP Enqueue Replication service. Then do the backup and restore process from non RAC system to RAC.
But in our scenario we should go for EXPORT/ IMPORT process.
Please guide us in going ahead with the right approach.
Surendra

> As part of OSDB migration we are not confident in doing it on Oracle RAC. Documentation for Oracle RAC on SAP explains first go for single instance installation on oracle cluster filesystem and implement RAC as a high availability solution with SAP Enqueue Replication service. Then do the backup and restore process from non RAC system to RAC.
>
> But in our scenario we should go for EXPORT/ IMPORT process.
This is not an antagonism, you can do a single instance installation by doing the import. Basically an "import" is a new installation with the export you've done before.
Markus

Similar Messages

Oracle RAC + HDS User Please help Migration Topic

Hi DBA/Storage Admin,
I have following issue that need your help (is a Solaris + Oracle 10g):
1. We are going to migrate data center, we going to move physical server BUT we are going to purchase new Hitachi Storage.
2. We are going to use Hitachi TrueCopy to clone all the OCR, Vote Disk and ASMDisks
In the server I have following softlink created:
/dev/rdsk/myrac/ocr -> /dev/rdsk/myolddisk1d0s0
/dev/rdsk/myrac/votedisk -> /dev/rdsk/myolddisk2d0s0
/dev/rdsk/myrac/asmdisk -> /dev/rdsk/myolddisk3d0s0
What I am going to do is to recreate the softlink to the new LUN, then change the permission to either root:oinstall and oracle:oinstall and 640 or 660 accordingly.
/dev/rdsk/myrac/ocr -> /dev/rdsk/newdisk1d0s0
/dev/rdsk/myrac/votedisk -> /dev/rdsk/newdisk2d0s0
/dev/rdsk/myrac/asmdisk -> /dev/rdsk/newdisk3d0s0
Please help me will above plan worked?
Thanks for sharing.

HexSin wrote:
Hi DBA/Storage Admin,
I have following issue that need your help (is a Solaris + Oracle 10g):
1. We are going to migrate data center, we going to move physical server BUT we are going to purchase new Hitachi Storage.
2. We are going to use Hitachi TrueCopy to clone all the OCR, Vote Disk and ASMDisks
I cannot advise on the detail of your proposed method, but may I ask one question: are you certain that you have the best approach? If it is possible to mount the old and the new storage on the same node(s), then you can move the disk groups to the new storage by using ASM to relocate file extents, and you can also move the OCR and vote devices. All with zero downtime,

Oracle RAC and Standards

Does anyone know if Oracle RAC is part of any emerging Grid standards?

Hi Eric
Isn't RAC a middle to reach the grid computing goals ?
“A computational grid is a hardware and software infrastructure that provides dependable, consistent, pervasive, and inexpensive access to high-end computational capabilities.” by Carl Kesselman and Ian Foster in “The Grid: Blueprint for a New Computing Infrastructure,”

Oracle RAC Concept - load balancing

Hello All,
I have a question about Oracle RAC and how it balance loading.
What I know about Oracle RAC that it balancing load between its node, so if a new session is connected to the Database it will execute on the node which have less load.
If I am having an application that connects to the database with few number of sessions and some sessions have huge (huge load) processes to execute while the other sessions are executing small process (in terms of load).
So below is an example scenario that i am asking for an answer of it:
if am having a two node RAC database.
My application that is connected to this RAC database wants to execute three processes P1, P2 and P3 each will have a session correspondingly S1, S2 and S3
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I am asking this question since my application is not users application, so it will connect to the database with few number of sessions, and 1 session of them may execute a huge process while the other are executing small processes.
So in that case, how RAC is doing the balance loading?
Regards,

i hope , this links may help you.
Thread: Server side Load balancing in RAC
Server Side Load Balancing Testing
read Oracle documentation:
http://www.oracle.com/pls/db102/search?word=server+side+load+balancing&partno=
http://www.oracleracexpert.com/2010/01/oracle-rac-load-balancing-and-failover.html
http://www.databasejournal.com/features/oracle/article.php/3659411/Oracle-RAC-Administration---Part-15-Connection-Load-Balancing-and-FAN.htm
http://oracleinstance.blogspot.com/2010/08/transparent-application-failover-taf.html

A question about Oracle RAC

Hello
I see a question:
by one thread in one process on one machine, select a row by unique condition , show can not find , and then insert a the same row, show occur error violate unique;
ask for help!

i hope , this links may help you.
Thread: Server side Load balancing in RAC
Server Side Load Balancing Testing
read Oracle documentation:
http://www.oracle.com/pls/db102/search?word=server+side+load+balancing&partno=
http://www.oracleracexpert.com/2010/01/oracle-rac-load-balancing-and-failover.html
http://www.databasejournal.com/features/oracle/article.php/3659411/Oracle-RAC-Administration---Part-15-Connection-Load-Balancing-and-FAN.htm
http://oracleinstance.blogspot.com/2010/08/transparent-application-failover-taf.html

Download Oracle RAC

Hi,
i have a question, where i can get to download Oracle RAC 10 release 2?
I must pay to get Oracle RAC or it is free????
Thanks
Andre

Hi,
i have a question, where i can get to download Oracle
RAC 10 release 2? Oracle RAC is part of the database. It is included in the download for the database. To enable it, you MUST have Oracle Clusterware installed and configured.
Howard Rogers has a demo of installing RAC on Linux at www.dizwell.com ... look under exotica
Otherwise go to otn.oracle.com and look for Jeff Hunter under Articles
>
I must pay to get Oracle RAC or it is free????
With Standard Edition, RAC is included in the license, subject to the limitations of Standard Edition
With Enterprise Edition, RAC is a separate priced option of the database but it has no limitations.

Domain migration of Oracle RAC nodes on windows 2008

Hello masters,
We are planning to migrate servers from old domain to a new domain due to company name change. That is, our DB servers named like db-node-x.old-domain.com will be migrated to db-node-x.new-domain.com. The servers are all on Windows 2008 R2 and Oracle RAC 11g2. As dba, i have no idea about what will happen to DBs. Please let me know any possible solutions?
Thanks in advance.

user2033016 wrote:
Hi Everyone,
I installed Oracle RAC 11g on Windows 2008 64 bit, The installation was successfull crs_state -t executed successfully.
Bt the machine got crashed ,when executed a select query with 100 sessions( For performance evaluation using TG). A blue screen is appeared on two nodes. So i am not able to evaluate the performance.
Can you please tell any suggesstions to solve this issue? Is our hardware is not sufficient? Or any software settings has to be done?. I tried most of hte technique ,bt the problem still exists.
The following machine configuration is used for Oracle RAC setup
Intel Core 2 Duo 2.66 GHz,
Ram :4GB.
OS : windows 2008 Server 64 Bit
Oracle RAC , Clusterware 11g R2 64 Bit.i guess you have installed/configured RAC using VMware. i guess, the problem is with your RAM size. how much disk space and RAM size you have allocated for each machine?
which documentation you have followed?

Oracle RAC Storage Migration - HP EVA to HP EVA

Hi,
We are in the process of migrating from an old HP EVA4000 to a new HP EVA6400. We have migrated most of the systems that had storage presented from the EVA4000 with the exception of our Oracle RAC databases and wanted to check to see if anyone knew of any gotchas before we proceeded.
We are using CA to replicate the LUNs that are presented to the Oracle cluster. My plan is to shut down the database and all associated RAC services, disable CRS then halt the servers. I will then present the CA replicated LUNs to the servers and initiate a failover. I will then restart the servers and check that the LUNs have appeared from the 6400 before manually restarting CRS and the databases. I will then re-enable CRS before rebooting again to check that everything comes up automatically.
Does this sound correct? Has anyone done this before?
Thanks in advance.
Phil

Seems reasonable, but can't be certain unless you test. Make sure you backup OCR, VOTE, Database before you change the storage allocation.
How big is the database ? How long will your downtime be ?
It may be cleaner to just reinstall CRS and restore the database from backup ?
Are you using ASM ? If so then you could just add new devices to ASM, migrate the data, then remove the old devices.

Migrating oracle 9i from Fail safe to Oracle RAC

We are planning to migrate our Oracle 9i database from Fail safe to Oracle RAC. Does anybody has any experience to share? Where can I find the documentation about this?
Regards
Tariq

FailSafe Cluster and RAC are completely different architectures, there's no direct migration path. Export the 9i database and import into a fresh RAC database.
At the same time move to 11gR2.
Werner

Oracle Upgrade from Oracle RAC 9.2.0.6 to Oracle 10.2.0.4

Hi All,
Currently, we are running 4 node Oracle RAC environment with below mentioned configuration.
OS: Sun Solaris 5.9
Hardware: Sun E2900
Oracle Version: 9.2.0.6
Veritas Cluster Server: 4.1
We want to upgrade Oracle version to 10g, and currently analyzing the options to perform this. The current database size is 1TB appx and we want to spend minimum application shutdown time running on this database.
As part of upgrade, we also need to upgrade Veritas Cluster Server from 4.1 to 5.1 to support Oracle 10g. It would be great help,, if someone can pass some guideline to perform this task.
We are currently thinking about piecemeal approach, where we can upgrade each node individually and then put them back to cluster. There are some complexities involved, and its really high risk approach.
Thanks a lot in advance for help
Regards,
Manoj

Orcale 10g RAC requires you to install Oracle Clusterware. Oracle Supports running it along side a 3rd party clustering software. Not sure why you're so anxious to upgrade Veritas Clusterware when it will be trivial on the 10g db hosts.

How to install oracle RAC 11g on oracle linux 5 using vmware workstation ?

Hello;
I need to Install Oracle RAC 11g R2 with database 11g ( 2 nodes ) but by using vmware workstation ( not server 2) on oracle linux 5-6 .
So any document can help me please ..
regards.

http://www.oracle-base.com/articles/11g/oracle-db-11gr2-rac-installation-on-ol5-using-vmware-server-2.php
http://appsdbaworkshop.blogspot.in/2011/10/11gr2-rac-on-linux-56-using-vmware.html
http://robertgfreeman.blogspot.in/2009/12/11gr2-rac-on-vmware-part-one.html

Recommendations - Oracle RAC 10g on Solaris 10 Containers Logical/Local..

Dear Oracle Experts et all
I have a couple of questions for Oracle 10g RAC implementation on Solaris and seek your advice. we are attempting to implement oracle 10g RAC on Solaris OS and SPARC Platform.
1 We are wondering if Oracle 10g RAC could be implemented on Solaris Local/Logical Containers? I was assuming that Oracle will always link it self with OS binaries and Libraries while S/W installation and hence will need an OS image/Root Disk over which it could go. However, in containers, I assume we have a single solaris installation and configuration which will thus be shared to the containers which will be further configured in it. In such situations how does Oracle instalation proceed? Do I need to look at a scenario where, the global Container/Zone will have Oracle install and this image be shared across to zones/containers accordingly? If it is so, what all filesystems from OS will need to be shared across to these zones/containers?
Additionally, even if this approach is supported, is it a recommended approach? I am unsure about the stability and functionality of Oracle in such cases and am not able to completly conceptualize. However, I assume there could be certain items which needs to be approprietly taken care off. It will help if you could share observations from your experiences.
2 The idea of RAC we are looking at is to have multiple Oracle Installations on top of native clustering solution say veritas clusters/Sun Clusters. Do we still need to have Oracle Cluster solution Clusterware (ORACRS) on top of this to achieve Oracle Clustering? Will I be able to install Oracle as a standalone installation on top of native clustering solution say veritas clusters/Sun Clusters?
Our requirement is to have the above mentioned multiple Oracle installations spread across two (2) seperate H/W platforms,say Node A and Node B, and configure our Cluster Solution to behave as active-passive across Node A and Node B. In other words, I will configure Clustering Solution like VRTS/SunCluster in Active-Passive, then have 3 Oracle installations on Node A, another 3 on Node B. I will configure one database each for each of these Oracle S/W installation (with an idea not to have Clusterware between clustering solution VRTS/SunCluster and Oracle installation, if it works). Now I will run 3 databases thus on each of these nodes. If any downtime happens on any one of the nodes, say Node A, I will fail all oracle databases and S/W accordingly to the alternate available node, Node B in this case, using native clustering solution and I will want the database to behave as it was behaving earlier, on Node A. I am not sure though if I will be able to bring the database up on Node B when resources in OS perspective are failed over.
we want to use Oracle 10g RAC Release 2 EE on Solaris 10 OS latest/one before the latest release.
Please share your thoughts.
Regards!
Sarat

Sarat Chandra C wrote:
Dear Oracle Experts et all
I have a couple of questions for Oracle 10g RAC implementation on Solaris and seek your advice. we are attempting to implement oracle 10g RAC on Solaris OS and SPARC Platform.
1 We are wondering if Oracle 10g RAC could be implemented on Solaris Local/Logical Containers? My understanding is that RAC in a Zone (Container) is not supported by Oracle, and will not work anyway. Regardless of installation, RAC needs to do cluster level stuff about the cluster configuration, changing network addresses dynamically, and sending guaranteed messages over the cluster interconnect. None of this stuff can be done in a Local Zone in Solaris, because Local Zones have fewer permissions that the Global Zone. This is part of the design of Solaris Zones, and nothing to do with how Oracle RAC itself works on them.
This is all down to the security model of Zones, and Local Zones lack the ability to do certain things, to stop them reconfiguring themselves and impacting other Zones. Hence RAC cannot do dynamic cluster reconfiguration in a Local Zone, such as changing virtual network addresses when a node fails.
My understanding is that RAC just cannot work in a Local Zone. This was certainly true 5 years ago (mid 2005), and was a result of the inherent design and implementation of Zones in Solaris. Things may have changed, so check the Solaris documentation, and check if Oracle RAC is supported in Local Zones. However, as I said, this limitation was inherent in the design of Zones, so I do not see how Sun could possibly have changed it so that RAC would work in a Local Zone.
To me, your only option is the Global Zone. Which pretty much destroys the argument for having Zones on a Solaris system, unless you can host other non-Oracle application on the other Zones.
2 The idea of RAC we are looking at is to have multiple Oracle Installations on top of native clustering solution say veritas clusters/Sun Clusters. Do we still need to have Oracle Cluster solution Clusterware (ORACRS) on top of this to achieve Oracle Clustering? Will I be able to install Oracle as a standalone installation on top of native clustering solution say veritas clusters/Sun Clusters?I am not sure the term 'native' is correct. All 'Cluster' software is low level, and has components that run within the operating system. Whether this is Sun Cluster, Veritas Cluster Server, or Oracle Clusterware. They are all as 'native' to Solaris as each other. They all perform the same function for Oracle RAC around Cluster management - which nodes are members of the cluster, heartbeats between nodes, reliable fast message delivery, etc.
You only need one piece of Cluster software. So pick one and use it. If you use the Sun or Veritas cluster products, then you do not need the Oracle Clusterware software. But I would use it, because it is free (included with RAC), is from Oracle themselves and so guaranteed to work, is fully supported, and is one less third party product to deal with. Having an all Oracle software stack makes things simpler and more reliable, as far as I am concerned. You can be sure that Oracle will have fully tested RAC on their own Clusterware, and be able to replicate any issues in their own support environments.
Officially the Sun and Veritas products will work and are supported. But when you get a problem with your Cluster environment, who are you going to call? You really want to avoid "finger pointing" when you have a problem, with each vendor blaming the cause of the problem on another vendor. Using an all Oracle stack is simpler, and ensures Oracle will "own" all your support problems.
Also future upgrades between versions will be simpler, as Oracle will release all their software together, and have tested it together. When using third party Cluster software, you have to wait for all vendors to release new versions of their own software, and then wait again while it is tested against all the different third party software that runs on it. I have heard of customers stuck on old versions of certain cluster products, who cannot upgrade because there are no compatible combinations in the support matrices between the cluster product and Oracle database versions.
I will configure Clustering Solution like VRTS/SunCluster in Active-Passive, then have 3 Oracle installations on Node A, another 3 on Node B. As I said before, these 3 Oracle installations will actually all be on the same Global Zone, because RAC will not go into Local Zones.
John

Error when contect Oracle rac from resin

when resin contenct a Oracle rac invironment, it alwarys report error like below:
conf/resin.conf:63: java.sql.SQLException: Io exception: Connection refused(DESCRIPTION=(ERR=1153)(VSNNUM
=153094144)(ERROR_STACK=(ERROR=(CODE=1153)(EMFI=4)(ARGS='(ADDRESS=(PROTOCOL=TCP)(HOST=rac001)(PORT=1
521))'))(ERROR=(CODE=305)(EMFI=1)))), after some times it can content successfully, but the failover mode get from the v$session is none.Meanwhile Oracle rac can be contect from PL/SQL successfully and the failover mode is select.
the contection info in the resion.conf is :
<resource jndi-name="jdbc/OVAConnectionPool">
<type>oracle.jdbc.pool.OracleConnectionCacheImpl</type>
<init>
<url>
jdbc:oracle:thin:@
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = rac001)(PORT = 1521))
(ADDRESS = (PROTOCOL = TCP)(HOST = rac002)(PORT = 1521))
(FAILOVER = ON)
(LOAD_BALANCE = ON)
(CONNECT_DATA =
(SERVER = DEDICATED)
(service_name = rmans.test.com)
(failover_mode = (type=select))
</url>
<user>ova</user>
<password>ova</password>
     <minlimit>5</minlimit>
<maxlimit>512</maxlimit>
</init>
</resource>
Any help will be apprecite!

Hello,
The errors you are receiving are typically a result of not following our published MOS note and our documentation. It’s important in order for Oracle E-Business Suite systems to be properly recognized by E-Business Suite Plug-in, AutoConfig must be enabled and updated on all nodes. You should prevalidate your system before the running discovery to help ensure success of the discovery process. These tests check that context files, context variables, users, and components are set up correctly in the system for successful discovery.
For more information on both topics refer to:
•     Getting Started with Oracle Application Management Pack (AMP) for Oracle E-Business Suite, Release 12.1.0.1 (Doc ID 1434392.1)
•     Oracle Application Management Pack for Oracle E-Business Suite Guide Release 12.1.0.1.0 Part No. E28715-03 October
If you are still experiencing errors after reviewing our documentation and taking the appropriate steps to prevalidate your system consider filing a Service Request with Support.
Regards,
Product Management

FDM is not supported on Oracle RAC? Why not?

[http://download.oracle.com/docs/cd/E12825_01/epm.111/fdm_11113_readme.pdf|http://download.oracle.com/docs/cd/E12825_01/epm.111/fdm_11113_readme.pdf] We are in the process of implementing Oracle Hyperion Financial Data Quality Management (FDM) version 11.1.1.3 as part of our Hyperion Essbase BI environment. I read over the documentation prior to building the databases, but apparently I missed an important bit of information. It seems that FDM is not supported on Oracle RAC. I just noticed this under in the "Known Issues" section of the FDM 11.1.1.3 release notes, and that was only one sentence. The release notes do not explain why this is the case.
- Does anyone know why FDM release 11.1.1.3 is not supported for Oracle RAC?
- Has this always been the case?
- Can a single node database, running on an Oracle 10.2.0.4 two node RAC environment, be used instead of building a separate, stand-alone database?
Link to readme document. The reference to RAC support, or non-support, is on page 6:
http://download.oracle.com/docs/cd/E12825_01/epm.111/fdm_11113_readme.pdf

Hi Daan,
I belive we all shoud consider http://forums.oracle.com/forums/ann.jspa?annID=939
I get upset to see people on this forum who answer the questions like *'use google'* or *'let me google it for you'* or *'use this forum filter'*
I belive it is better to help them answer a better question or if you don't like the question ignore it.
Hi user10511107,
I belive your problem is with Windows not with BI, BI just can't get windows version,
If you are on right version of windows go to MSDN and search for your error and how to fix it
ERROR: Provider Load Failure.
Regards
Nicolae

Problem when I extend an oracle rac 10g on new node

Hi everyone
I need to extend an oracle RAC but i have problems when I add a new node. My actual enviroment is:
1) Oracle Grid Infraestructure 11gR2 - 11.2.0.3 (Upgraded from Clusterware 10gR2 + ASM 10gR2)
2) Oracle Rac Database - 10.2.0.5
(all on one only node)
The first problem was when I executed the script "root.sh" on the new node because this script called the old Clusterware home (/oracle/product/10.2.0/crshome). I edited the file and I changed this path for /oracle/gridbase/product/11.2.0/gridhome (current home for GI). Finally, I execute the script.
Now, I tried to extend the rac through of DBCA, but when, I choose the new node and I clic on "next" button then appears the following error:
"The nodes "[rstatbdbpm02]" are not part of the cluster. Make sure clusterware is active on these nodes before proceeding"
However, when I execute the "crsctl" command to view the status of cluster the result is correct:
[oracle@rstatbdbpm01] /home/oracle > crsctl status res -t
NAME TARGET STATE SERVER STATE_DETAILS
Local Resources
ora.DATA.dg
ONLINE ONLINE rstatbdbpm01
ONLINE ONLINE rstatbdbpm02
ora.LISTENER.lsnr
ONLINE ONLINE rstatbdbpm01
ONLINE ONLINE rstatbdbpm02
ora.asm
ONLINE ONLINE rstatbdbpm01 Started
ONLINE ONLINE rstatbdbpm02 Started
ora.gsd
OFFLINE OFFLINE rstatbdbpm01
OFFLINE OFFLINE rstatbdbpm02
ora.net1.network
ONLINE ONLINE rstatbdbpm01
ONLINE ONLINE rstatbdbpm02
ora.ons
ONLINE ONLINE rstatbdbpm01
ONLINE ONLINE rstatbdbpm02
ora.registry.acfs
ONLINE ONLINE rstatbdbpm01
ONLINE ONLINE rstatbdbpm02
Cluster Resources
ora.BDBPM.BDBPM1.inst
1 ONLINE ONLINE rstatbdbpm01
ora.BDBPM.BPMVEH.BDBPM1.srv
1 ONLINE ONLINE rstatbdbpm01
ora.BDBPM.BPMVEH.cs
1 ONLINE ONLINE rstatbdbpm01
ora.BDBPM.db
1 ONLINE ONLINE rstatbdbpm01
ora.LISTENER_SCAN1.lsnr
1 ONLINE ONLINE rstatbdbpm02
ora.LISTENER_SCAN2.lsnr
1 ONLINE ONLINE rstatbdbpm02
ora.LISTENER_SCAN3.lsnr
1 ONLINE ONLINE rstatbdbpm01
ora.cvu
1 ONLINE ONLINE rstatbdbpm01
ora.oc4j
1 ONLINE ONLINE rstatbdbpm01
ora.rstatbdbpm01.vip
1 ONLINE ONLINE rstatbdbpm01
ora.rstatbdbpm02.vip
1 ONLINE ONLINE rstatbdbpm02
ora.scan1.vip
1 ONLINE ONLINE rstatbdbpm02
ora.scan2.vip
1 ONLINE ONLINE rstatbdbpm02
ora.scan3.vip
1 ONLINE ONLINE rstatbdbpm01
[oracle@rstatbdbpm01] /home/oracle >
Please, Any idea with that problem?
Thanks,
Luis

Hi,
Please check dbca trace logs for further checks, it will give an idea what command is being run to check status of cluster.
Generally first checks should be on inventory for rdbms home, grid home and making sure no ORACLE related parameter is set in environment.
Regards,
Sharma

Oracle Rac as part of OSDB Migration

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