Author: Fred Denis

How to patch an exadata (part 1) – introduction and prerequisites

Once you have installed your new Exadata machine will come a time where you’ll be asked : “shouldn’t we patch the Exadata” ? And the answer is “yes, definitely“. Indeed, Oracle releases huges (~ 10 GB) “Quarterly Full Stack” patches (aka Bundles)…

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Parting with ocm.rsp isn’t really sweet sorrow…

Now that we’re well into 2017, let’s sit back and ask the question: “What was the best news of 2016 in the Oracle ecosystem?” The 12.2 beta ? (no, that was announced in October 2015 :)) The fact that we…

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How to Install a brand new Exadata X5 (part 2)

Fred Denis, Pythian Oracle Database Expert, continues his post on installing a brand new Exadata X5.

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How to install a brand new Exadata X5 (Part 1)

When you buy an Exadata machine, you can ask Oracle to proceed with the installation or let some brilliant DBAs like the one at Pythian to do it :) I will then present in this blog how to install a brand…

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ASM 12c : how to rename a Diskgroup

Fred Denis, Pythian Oracle Database Expert, explains how to rename a diskgroup.

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ORA-15418: appliance mode not supported for compatible.asm 12.1.0.0.0

Fred Denis, Pythian Oracle Database Expert, talks about his encounter with error code ORA-15418: on 12.1 on Exadata.

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ASMCMD> a better DU, version 2

A while ago, I posted a better “du” for asmcmd . Since then, Oracle 12cR2 beta has been released but it seems that our poor old “du” will not be improved. I then wrote a better “better du for asmcmd” with…

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An UNDO in a PDB in Oracle 12c?

Fred Denis, Pythian Oracle Database Expert, challenges the idea that there can be only one UNDO tablespace in a multi-tenant architecture.

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asmcmd> a better “du”

I discovered ASM with a 10.1.0.3 RAC running on Linux Itanium and that was a big adventure. At this time there was no asmcmd. In 2005, Oracle released Oracle 10gR2 and asmcmd came into the place and we figured out…

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RMAN 11g : How to restore / duplicate to a more recent patchset

In an Oracle DBA’s life, you’ll be regularly asked to work on applying a new patchset on a database and then you will apply it starting from the development database to the production database and this process can be quite…

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