AW: Re: CentOS instead of RHEL?

Hi all,

does someone know any documentation comparing the different OS? I'm looking for such information from engineering (practical) as well as scientific point of view.

Thanks and regards
Ahmed Fikri

• Original-Nachricht --- Von: Stefan Knecht Betreff: Re: CentOS instead of RHEL? Datum: 29.01.2020, 5:12 Uhr An: dmarc-noreply_at_freelists.org Cc: oracle-l_at_freelists.org

As you've said, it's pretty clear, yes.

And regarding your last point. Yes, there are people out there running Oracle on CentOS in production. But it's usually those that don't really have in-house DBAs and just have an Oracle instance running somehow, and nearly forgot about it, until it broke some day. I wouldn't think that a lot of shops that run Oracle seriously would choose a non-certified OS to do so.

It's a bit like asking if you can fit monster truck wheels on your fiat 500. Can you make the car run? Sure. Can you take it for a spin and have some fun with it? Absolutely. Would you drive your kids across town to school with it every day? Probably not.

On another note, I've seen my fair share of Oracle bugs out in the wild over the years. Some tricky and involving long resolution times (due to bug fixes needing to be developed by Oracle). And that was on completely certified platforms and combinations. And frankly, I wouldn't want to introduce another unknown variable into the mix that has yet another chance of introducing some odd behavior due to some code path being different than a certified install of RHEL or OEL would have.

Thus, Oracle on CentOS in production? Big thumbs down from me :)

Stefan

On Wed, Jan 29, 2020 at 5:23 AM Herring, David < dmarc-noreply_at_freelists.org <mailto:dmarc-noreply_at_freelists.org> > wrote:

  Today one of my leaders approached our team informing us that our sysadm   team was planning on migrating from RHEL to CentOS and wanted to know if   we knew of any issues running Oracle products on CentOS. As any good DBA   would do when presented with this, I checked certifications in MOS and   couldn't find anything that explicitly listed CentOS. So I assumed that   some flavors of Linux are just dumped under the grouping "Redhat" but   just to be sure I opened an SR.    

  Oracle came back with:        

      Remember, CentOS and Scientific Linux, both of which are clones of
      RHEL (like Oracle Linux), are not supported by Oracle for the
      database and WebLogic installations, so you CAN NOT use these. You
      can happily use them for non-Oracle installations though.

      CentOS is similar to Oracle Linux. Free to use, but you can choose to
      pay for support.

      Therefore; it is not the same and is not certified and we do not test
      on it. If there is an issue, Oracle Support does not support it.

       

  Seems pretty clear to me - not supported so there's no way we'd allow   hundreds of complex production envs be migrated to CentOS. But I have a   hard time believing the sysadm team (outsourced and we're just 1 of many   clients they support) would not have come across this issue already. So   there's nothing to read into/between lines on this one - no support.   Right? No one out there (unless living on the edge) is running Oracle on   CentOS in production? Just doing a double-tap to make sure.    

  Regards,    

  Dave

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