Martins Blog

Linux

Essential tools for Exadata performance experiments

Like I said in a previous post I have started working in the Exadata performance field,…
Why is my Exadata smart scan not offloading?

After receiving the excellent “Expert Oracle Exadata” book I decided to spend some time looking into…
Pimp my collectl-advanced system monitoring using collect-utils part I

I have recently written about collectl, a truly superb troubleshooting utility, in a previous post. After…
A day at Cisco’s labs and an introduction to the UCS

I recently had the immense pleasure of visiting Cisco’s labs at Bedfont Lakes for a day…
An introduction to collectl

Some of you may have seen on twitter that I was working on understanding collectl. So…
Using Connection Manager to protect a database

I have known about Oracle’s connection manager (CMAN) for quite a while but never managed to…
Open VPN for the Road Warrior

UPDATE I have updated the post on 05-DEC-2013 to be relevant for openvpn-2.2.2-9.5.1.x86_64 on OpenSuSE 12.3.…
Tuning Log and Trace levels for Clusterware 11.2

With the introduction of Clusterware 11.2 a great number of command line tools have either been…
A more user friendly multipath.conf

Update The below described changes to the device uid, gid and mode have been deprecated with…
How to use the RAC FAN Java API

I researched an interesting new feature available with Oracle 11g R2, the so called RAC FAN…