Secondary Vacumm Pump question???

[Roadster]

I have noticed that the Secondary vacumm pump under the right headlight assembly has been disconnected. Therefore the pump was never running. When I plugged it back in, the piump runs continuously. So with that thought in mind:
1-why and would the seconandaries operate?
2- is it safe to assume that the pump needs replacement, or am I missing something here in the way the system functions ?

Again, the engine runs great, and that first complete WOT was nothing short of amazing. And I would also assume that the secondaries are operational, as there is no reason to believe that they were ever disconnected, unless that was performed when GM Engineering owned the Vette for the first 2 years.
From my research on previous owners, it seems that not too many parts were replaced. And the latest fuel filter and spark plugs were changed within the last two thousand miles.

PS....I don't have any stumble or hesitation what-so-ever, when you press down on the accelerator, it is an instant response throughout the gears.

Still learning about everything, so any thoughts or info is appreciated.
Thanks...........................