Rubbish, invalid comparison, I bet your data centre involves businesses that make money? Obviously ED is a game & we don't make money from it (barring the 1 off competition). I suppose you'd argue that this down time will upset customers & they could leave, bearing in mind we are just talking about the xmas hols having any significant effect, those who like the game aren't going to leave only because their might be some downtime/server problems once a year over a week or so, & the few that might aren't going to have much affect, don't forget it costs more to have them manned 24/7, I don't see that a few leavers not leaving under those circumstances making up for it.
Oh, sorry. Of course my "expertise" is rubbish, how could I know you are an expert on global cloud data center implementations? You may want to send me your resume, we might use somebody with your knowledge about scalable high availability solutions and service design. But what do I know...
The funny part is, if they need downtimes, to do manual maintenance, they even have more people to pay as if they would do it like professional operators with high level of automation. So your argument about the money is exactly, why they should have done it right in the first place.
I'm not talking about one Data center, nor is it "mine"... I have to take into account a design spanning all regions and multiple data centers when implementing services for a global company.
Our "customers" can't just leave, they are part of the company, rather if I make big mistakes, I have to fix them or face the consequences.
If Frontier hadn't bragged about their experience in game development and "that solo mode is as good as offline singleplayer", did advertise Elite: Dangerous without tricking people into buying with "Yes, there will be an offline singleplayer. You won't need a server."... but now it is just another point, why people wanted to have an oflline mode.
And BTW, where do they say it is just ONE week?