Howto setup a mariadb cluster

I just did it, you did it also once and you will do it in the future or if you are on this page because you want to do it right know, its a honor for me to help you with. Setup a mariadb (galera) cluster is very easily. Requirements

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Test your bandwidth with dd or/and netcat

If you dont have a iperf on your server and you cannot install it for some reasons my iperf article will not help you to determine your throuphput. But you can check your bandwidth with some other tools. Most of them are standardtools on a server. Alternative one: netcat With

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iperf – a great bandwidth measure tool

Today i want to introduce a little bandwith measure tool to you. iperfis a tool to measure the bandwith between to systems. It is a client/server application, so you need to install it on both sides. To install this little guy, i use the standard repository from the system iam

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Documentation for multipathd

Documentatuon for MultipathD The multipathd supports the devicemapper with the configuration of the harddrives which are mounted with more than one path. Important Files The configuration file for the multipathd is the following: – /etc/multipath.conf This file holds the configuratipn… — Blacklisting — Exceptions — Assignment — and so on…

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Perfomanceanalysing with SAR

Perfomanceanalysing with SAR Installation You need to install the package sysstat to use sar. You also need to configue a cronjob, so sar can collect all the great perfomance data. The package comes with the needed cron-configfiles for sar and safe them (depends on the distro) in /etc/sysstat/. Some distros

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