There are plenty of benchmarking tools available but storage professionals mostly use IOmeter. Unfortunately IOmeter is a little tricky to use. You really need to read the user manual first. I have frequently seen users trying to run IOmeter tests without success. Being human, most of us hate to read the manual and with IOmeter this can lead to problems. I hope this short post will help you to get the wanted results. First off, [...]

I guess that all of us know that caching the data usually increase the performance, but I worried if all of us are aware about risk that caching the data provides and how to minimize them? That’s the reason why I decided to write this short article about it. Therefore, let us analyze the situation when we are using device (HDD) connected to our OS via iSCSI. Server that provides this device as LU through [...]