> it's the kind of thing that tends to be known by grizzled infrastructure veterans who had good mentors in their chequered past—and not so much by the rest of us
This is why your systems should be designed by grizzled infrastructure veterans.
>>dang+bv1
That goes along with "almost never" which is a synonym for "sometimes" and "maintenance-free" which is a synonym for "throw it out and buy a new one when it breaks".