Real Application Clusters Certified with EBS 11i

So many Notes, so little time...  You might have caught my recent article that touched on scaling up your E-Business Suite Release 11i environment with Real Application Clusters for reporting purposes or to improve your environment's overall performance and fault tolerance.  If you're wondering whether this applies to EBS environments running the 11gR1 database, the answer is, "Yes."

For details, see:

This document describes how to migrate Oracle Applications Release 11i (Release 11.5.10) running on a single database instance to an Oracle Real Application Clusters (RAC) environment running Oracle Database 11g Release 1 ( with Automatic Storage Management (ASM). 

RAC & ASM are Not Corequisites

We certify the E-Business Suite with Real Application Clusters with Automatic Storage at the same time, since customers often deploy them together.  However, just because we document these two options together doesn't mean that one requires the other.  In other words, it's also possible to deploy Real Application Clusters without Automatic Storage Management, and vice versa.

11gR1 Upgrade Feedback Wanted

By the way, I am extremely interested in hearing from any Apps customers moving to the 11g database.  If you've been working on an 11gR1 upgrade, I'd be grateful if you could either post a comment or drop me a private email about your experiences so far.

Related Articles


Hi Steven,
We are planning to upgrade to 64-bit RAC running on RHEL 5. Is 64-bit on RAC certified with EBS


Posted by Sriram on October 13, 2008 at 10:08 AM PDT #


Is 11gRAC certified with R12?


Posted by John Stouffer on October 14, 2008 at 01:05 AM PDT #

Steven and ATG Folks:

I'm currently running two (ATG_PF.H RUP4) EBS environments on RAC. I need to choose whether to upgrade to 10gR2 (RAC, non-ASM) or 11gR1 (RAC, non-ASM).

Are there any compelling 11g features beneficial to EBS that would make it the obvious choice?

Is it known yet what percent of EBS customers are on 11g RAC and how that's going for them?

My highest priority is stability; I'm not a bleeding edge adrenaline junkie who needs multi-weekend patch fests ;-)

If I were to choose 11g, it also seems I would have to upgrade to before applying ATG RUP 6, which is a bummer if true. Can you please confirm that my research to date is correct?

Thank you all very much in advance for any guidance you can provide.


(Solaris 10, Veritas Storage Foundation for Oracle RAC 5.1 MP1)

Posted by Jerry Kohler on October 14, 2008 at 01:23 AM PDT #


Yes. You can see it referenced in the R12 certification announcement linked in the above article, as well as on my new Certification page:



Posted by Steven Chan on October 14, 2008 at 02:41 AM PDT #

Hi, Jerry,

Our 11g Database certification was only released earlier this year, so there's still only a relatively small number of customers who have upgraded so far. The momentum is building, though. The anecdotal impression that I've been getting about these upgrades is that they're going smoothly so far.

I would consider database options such as Advanced Compression and Real Application Testing to be killer features, myself. If I were debating between 10gR2 and 11gR1, the availability of those 11gR1-only options would be the deciding factor for me. These options have the potential to save a tremendous amount of money.

If stability is your primary priority, then staying with the mature 10gR2 codeline may be the best choice. Many customers take the approach that they wait until Oracle's own EBS instance has been upgraded to a given technology before using it themselves. Our internal instance is still on 10gR2; we're planning an upgrade to 11gR1 sometime next year, due to various internal release cycles and financial reporting deadlines.

As for the prereqs: ATG RUP 6 (5903765) requires 11i.ATG_PF.H (patch 3438354), which requires or higher (Note 284086.1).

Presumably, qualifies for "higher", so in theory, you don't need to upgrade to That said, is getting a little long in the tooth, so I'd recommend to get the latest security and performance bug fixes in that release.


Posted by Steven Chan on October 14, 2008 at 03:04 AM PDT #

Hi, Sriram,

Almost missed your question -- sorry, wasn't ignoring you.

For the Database with RAC:

E-Business Suite 11i is certified with the Red Hat Linux 64-bit operating system on x86-64 hardware architecture in a split configuration database tier, that is, only the database tier is certified on this platform.


Posted by Steven Chan on October 14, 2008 at 09:00 AM PDT #

At least for 64-bit database on Solaris 10, there still is a problem with JDBC with 11g. I am told there is a fix internally, but here are some regression tests still pending. So until the fix is released and rehosted to Apps, I would not upgrade11i Apps to 11g. This affect the workflow mailer and serveral OF pages.

Posted by Tianhua Wu on October 14, 2008 at 08:52 PM PDT #

just an FYI, RDBMS patch 7253531 "ORA-7445 [TTCI2U] FOR SOME APPS FUNCTIONALITY AFTER UPGRADE DATABASE TO 11G " has been released. The Java mailer and "Jserv Uasge" pages are working after applying the patch.

Posted by Tianhua Wu on October 23, 2008 at 12:53 AM PDT #

Hi, Tianhua,

Thanks for letting us know that these patches worked out for you. I've passed that along to the team that owns them.


Posted by Steven Chan on October 23, 2008 at 03:53 AM PDT #

Hi Steve,

We are currently running EBS (ATG RUP4) on Oracle non-RAC 10g R2 database, solaris 10 64-bit. We are planning to apply ATG RUP 7patch and then upgrade 10g R2 to 11g R1 and then implement RAC with ASM.
Do we need to upgrade our db to 11g R1 and then implement RAC or implement RAC first and then upgrade it to 11gR1?

Where can i get the related information and what would be the critical path moving to 11g R1 RAC?

Any recommendations would be greatly appreciated.

Posted by Swarna on January 28, 2010 at 02:35 AM PST #

Hi, Swarna,

Either approach would work, but I think it would be easier to upgrade to 11gR1 first, and then convert that to a Real Application Clusters deployment. This is the most common approach that the majority of our customers take.

You can find pointers to the documentation for this upgrade here:

Database 11gR1 Version Certified with EBS 11i


Posted by Steven Chan on January 28, 2010 at 08:45 AM PST #

Hi Steve,

Is RAC One certified with Oracle EBS?
RAC One can run with Oracle EBS, which version we should go?


Posted by Brama on December 15, 2010 at 01:24 PM PST #


Your question prompted me to post an article for the emerging FAQ:

Is RAC One Node Certified for E-Business Suite?

We don't have any preferred RAC One Node version, although I generally recommend using the latest database certified with the E-Business Suite. At present, that's 11gR2


Posted by Steven Chan on December 17, 2010 at 05:20 AM PST #

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