Flash-based storage has so much going for it at the IT level. It can manage mixed workloads far better than magnetic spinning disk arrays; it can store data in a far more optimised manner, leading to much higher densities in effective storage volumes; it uses far less energy and produces far less heat, so requiring far less cooling. Flash also unblocks the performance bottleneck of both internal and usable input/output operations per second (IOPS), providing far better end-to-end data performance. It answers so many of the issues that IT has been struggling with that all-flash arrays are unsurprisingly the subject of a great deal of interest by IT managers and CIOs at the moment.