Osu renewing sas licence

I know this has been asked a few times before and there's a bunch of documentation out there, but it's my first time so I just want to make certain I'm doing the SAS renewals correctly.

We've got our new licenses off SAS and all look fine, but I'm a bit unsure on where to run them in. We've got 3 servers, and 3 licenses for them (VA, Compute and Metadata), so do I go on to each server and run the Renew SAS Software utility and place the VA license to VA Server etc, or do I just run it once (from any of the servers, or my own pc) ?

When I do renew the licenses, do I need to go to everyone's PC who has SAS and renew their licenses locally, or once it's updated on the servers, is that fine?

We've got 5 license files off SAS, 3 for Servers, 1 that is Wrkstn which looks like it's just for DataFlux and then 1 that is Wrkstn_Srv which seems to be for EMiner. What am I to with that Wrkstn_Srv one?

I also see that the SAS documentation references a SID File. How do I differentiate that from the normal renewal file?

I know it's a good few questions, but any help is appreciated