“The software home is already registered in the central inventory ?” A failed attempt to apply RU on 19c Grid Infrastructure home before it is configured

I recently came accross a new (to me) error when trying to upgrade Grid Infrastructure on my lab, a 2-node 18.6 RAC cluster. To upgrade Grid Infrastructure directly to 19c with the latest Release Update 19.4, I downloaded the 19.3 base release and tried to apply RU 19.4 before launching the upgrade : (Please refer […]

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Exadata Cloud at Customer : Grid Infrastructure patch under the hood

Following up with this blog post, here is a quick overview of what is performed on Exadata Cloud at Customer nodes when a Grid Infrastructure patching is launched via the web interface, the Oracle Cloud control plane. The whole patch process is not that different from the precheck process. Most of the steps are similar, […]

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Exadata Cloud at Customer : Grid Infrastructure patch precheck under the hood

I am now exploring the brand new Grid Infrastructure patching method for Exadata Cloud at Customer. With Exadata Cloud at Customer version 18.1.4.4, it is now possible to patch Grid Infrastructure with a few clicks in the GUI. Let’s see exactly which steps are performed. First, with my preferred method (CLI 🙂 ), I run […]

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Fun with attribute STOP_TIMEOUT for a custom clusterware resource

(Photo by Alex Guillaume, on Unsplash) I recently encountered a problem, for which I do not have any clue yet. But at least, I have a workaround. The goal of this blog post is to remember the exploration towards this workaround. And then to switch back to a normal sitution when possible. For some reason, […]

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Deinstalling previous Grid Infrastructure Home after an upgrade to 18c

(Picture by The Creative Exchange, via Unsplash) Yesterday, I upgraded my lab Grid Infrastructure version 12.1 to version 18c on Oracle Linux Server release 7. Everything went (approximately) OK, but this is not the subject of interest today. Afterwards, I wanted to get rid of the old 12.1 Grid Infrastructure home with the deinstall utility.

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