Good post by Jim Bahn (thank you)
Due to the unique characteristics of flash, performance validation testing is immensely challenging and critically important; follow these best practices.
All-flash storage arrays (AFAs) are receiving lots of attention these days and for good reason. Compared to spinning disks, AFAs provide dramatically better performance, take up less floor space, and even offer overall cost of ownership advantages. Nevertheless, the cost per gigabyte is still relatively expensive, which means that AFAs should not be deployed for every application workload. The obvious questions are which workloads are most cost-effectively deployed on flash storage and which vendor has the optimal flash storage product for your workloads.
Read on here