At my old job they used to do a whole bunch of processes when they took the servers offline - updates, creating backups, any maintenance, basically anything that required them to be offline or was easy to do while no one could get on there. The updates might only take a few minutes, but the full process could take a few hours, especially if it had to be tested before they could be brought back online.
(I don't know how my new job does it, not my department any more.)

Pendrillion wrote: »I guess you mix up testing the server infrastructure with testing the game content... They don't need to test the game content in that regard. But as they'll have to restart the servers, they need to test if all elements of the Game do work properly with their allocated server technology. Thats nothing that happens on PTS. Or only to a small part.
Imagine the Life Server as huge array of interconnected PC components that are run as system. To bring Tamriel to all of us.
The PTS server is maybe half or a third of that size. And works on a smaller scale. Also most of the server space is probably scattered across thw world and has to be synchronised ...
pipelighter wrote: »Pendrillion wrote: »I guess you mix up testing the server infrastructure with testing the game content... They don't need to test the game content in that regard. But as they'll have to restart the servers, they need to test if all elements of the Game do work properly with their allocated server technology. Thats nothing that happens on PTS. Or only to a small part.
Imagine the Life Server as huge array of interconnected PC components that are run as system. To bring Tamriel to all of us.
The PTS server is maybe half or a third of that size. And works on a smaller scale. Also most of the server space is probably scattered across thw world and has to be synchronised ...
Thank you - I am beginning to get there - very slowly. So what you are saying is that each of those 'mythical' pc's have to be tested to make sure that they are all working as intended and that perhaps one of them is not playing skyrim by accident?
pipelighter wrote: »Pendrillion wrote: »I guess you mix up testing the server infrastructure with testing the game content... They don't need to test the game content in that regard. But as they'll have to restart the servers, they need to test if all elements of the Game do work properly with their allocated server technology. Thats nothing that happens on PTS. Or only to a small part.
Imagine the Life Server as huge array of interconnected PC components that are run as system. To bring Tamriel to all of us.
The PTS server is maybe half or a third of that size. And works on a smaller scale. Also most of the server space is probably scattered across thw world and has to be synchronised ...
Thank you - I am beginning to get there - very slowly. So what you are saying is that each of those 'mythical' pc's have to be tested to make sure that they are all working as intended and that perhaps one of them is not playing skyrim by accident?
There are a lot of moving pieces in a system like this, think databases, messaging systems, caches, logging, monitoring and alerting, etc. All in addition to the actual servers that run the zones and instances. Many of those things will be getting updated, restarted and then need to be checked over to make sure everything is plugged together correctly and working.