Using DISKSPD or similar products writing only zeros will give overly positive performance figures and if used as base for performance sizing, can lead to grossly undersized environments.
Since data is already available in Stargate statistics, how about alerting about this?
"Hey there, it seems that you are running some sort of performance test. The tool you are using generates data with all-zero content. Using all-zero content will give overly positive performance figures. XX% of current workload for virtual machine X is all-zero content"
Best answer by Jon
i.e a "BS detector alert"
The challenge here is that, its possible for an application to spit out all zero content, so getting stargate (or anything else) to pick up when you're actually just running a BS storage test, or when the application is actually doing something that slightly resembles a BS test (rare, but it could happen), could be tricky.
I love the zero suppression technology that we have, its actually quite a huge strength, and in my mind, no amount of fancy alerting is going to undo the fundamental misunderstanding that people having around running performance test (i.e, not everyone knows that DISKSPD generally is a bunch of zeros)