Well, don't confuse I/O with throughput here. You can look at performance numbers for just about anything and tweak one direction or the other. For instance it

Well, don't confuse I/O with throughput here. You can look at performance numbers for just about anything and tweak one direction or the other. For instance it's easy to make a benchmark showing huge throughput to any given storage solution (and many NAS providers sell on this basis), but your I/O might be terrible because to get that throughput you're maxing the CPU (etc.). Likewise, you can change your benchmark and show high I/O, but the throughput is 'terrible'.