As a new DBA you should have been provided with a
Acceptance environment where you'd do this work(which has same setup, although nodes named as DEV and PROD is very dubious).
Anyways apparently you haven't been provided with the same, I presume.

It's a weird scenario anyways you need to investigate if it's the OS which is clustered. I'm guessing that's it's just some TAF kind of setup(from the SAP app dev's point of view) where if the DEV db fails it'll find the DEV schema on the PROD box and vice versa.

But you do need to investigate properly, ask someone for a schematic diagram of what goes where. Beginning right down from the HW and then working your way up to the SW.