Artikelen gelabeld: performance

Announcing qdda 2.0


It’s almost a year since I blogged about qdda (the Quick & Dirty Dedupe Analyzer). qdda is a tool that lets you scan any Linux disk or file (or multiple disks) and predicts potential thin, dedupe and compression savings if you would move that disk/file to an All Flash array like [...]

Six alternatives to replace licensed Oracle database options


More and more I hear companies looking into replacing expensive licensed database options with more cost-effective alternatives, for various reasons: simple cost reduction, or avoiding lock-in, or because of other strategic considerations. In order to kickstart the creative thinking, here are a few hardware and software based methods to achieve [...]

The Quick and Dirty Deduplication Analyzer


The best thing about being me… There are so many “me”s. — Agent Smith, The Matrix Reloaded One of our customers reported less than optimal space savings on XtremIO running Oracle. In order to test various scenarios with Oracle I was in search of a deduplication analysis method or tool – only [...]

The IOPS race is over


Infrastructure has always been a tough place to compete in. Unlike applications, databases or middleware, infrastructure components are fairly easy to replace with another make and model, and thus the vendors try to show off their product as better than the one from the competition. In case of storage subsystems, the [...]

Baking a cake: trading CPU for IO?


Sometimes I hear people claim that by using faster storage, you can save on database licenses. True or false? The idea is that many database servers are suffering from IO wait – which actually means that the processors are waiting for data to be transferred to or from storage – and [...]