Can I just say how awesome whoever wrote the man-page for snapmirror show is? This is the first man page that I've seen that (at least in 9.15.1) accurately describes all the fields returned by snapmirror show -instance, including possible values and what they mean. And "diag" level fields as well (see screenshots).
What would be needed to have the other man pages follow suit and document those fields so extensively as well? This would be awesome!