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Multiple oracle home advantages

Posted on 2014-09-18
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Is there any advantage running multiple oracle homes as far as performance concerns?

We're running around 10 databases using a single 11g oracle home. The database are being moved to Linux. Is it the right time to keep multiple oracle home?

Any advantages other than applying patch/upgrades?

Thanks,
Sve.
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Question by:sventhan
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Benefits on single HOME off the top of my head:
Single tnsnames.ora?

If you have multiple homes, you need to be concerned about which one gets to own which listener (if you have multiple listeners) or the one listener if you only have one.

Benefits of multiple:
You can upgrade one without having to upgrade ALL.
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I would only keep one home per version of the Oracle software.  If you patch some but not all, create a new home.  If you upgrade, create a new home.

I don't see any advantage in keeping multiple homes for the same version.

For the listener, we usually only have one.  It runs out of the highest home that is on the machine.
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