February 1, 2016 4 Comments
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 in the meantime, no useful work can be done. Given the expensive licenses that are needed for running commercial database software, usually licensed per CPU core, this then leads to loss of efficiency.
Let’s see if we can visualise the problem here with a common world example – Baking a cake.