A users reported with 3.0.3 that he/she got hints like
"NOTE: you should run 'diskperf -y' "
and wasn't sure what it meant.
We shall clarify, if and how important that suggestion is.
Maybe: "optionally enable access to disk stats for a little bit more entropy (when in doubt: ignore)"
Or : "the disk stats are an important source of entropy (used for random numbers) please enable them if you can."