[VMS Internals Books e.g. Kenah Goldenberg & Bate]
I haven't seen that specific book, but in general
such books usually
tell what the software does, but not the engineering trade-offs that led
to it being done that way as opposed to some other way, which seems to
be what was requested.
At least a little of that does shine through.
"The Hitchiker's Guide to VMS" has many tidbits up through the V5 days.
Bruce Ellis, 1990. And even better it's enjoyable.
There were various detailed things in DTJ, although those typically represent more of the
corporate mongolian-horde design-by-committee approach to systems programming, rather than
anything you'd want to actually emulate.
Tim.