Linux

Install the Oracle Cloud Infrastructure CLI on Ubuntu 20.04 LTS

This is a short post on how to install/configure the Oracle Cloud Infrastructure (OCI) Command Line…
Deploying I/O intensive workloads in the cloud: LVM RAID

I recently blogged about a potential pitfall when deploying the Oracle database on LVM (Logical Volume…
Oracle Cloud Infrastructure: using the CLI to manipulate Network Security Groups

I frequently need to update security rules in one of my Network Security Groups (NSG). Rather…
Linux BPFtrace: slightly more advanced use cases involving kprobes

If you look at some of the examples of how to use bpftrace – more specifically…
Deploying I/O intensive workloads in the cloud: don’t fall for the LVM trap

I have been assessing the “best” storage option for Oracle databases deployed on Infrastructure as a…
Do you know perf trace? It’s an almost perfect replacement for strace

Last night while I was working on my POUG 2021 presentation I looked up what’s new…
Do I really have to set resource limits for Oracle in systemd unit files?

TL;DR: it is very much required to set resource limits in systemd unit files. If you’d…
Installing perf on Ubuntu 20.04 LTS in Oracle Cloud Infrastructure

This is a very short post with instructions on how to install perf on Ubunutu 20.04…
Using systemd to start an Oracle single instance database when booting

I don’t work with systemd frequently enough to remember its syntax and other intricacies so I…
Geeking out on Linux: file descriptors and their open modes & flags

While preparing my talk for the upcoming POUG 2021 conference I wanted to know which flags…