[Aurornis]

UPS batteries don't last forever.

So now you need to test them regularly. And order new ones when they're not holding a charge any more. Then power down the server, unplug it, pull the UPS out, swap batteries, etc.

Then even when I think I've got the UPS automatic shutdown scripts and drivers finally working just right under linux, a routine version upgrade breaks it all for some reason and I'm spending another 30 minutes reading through obscure docs and running tests until it works again.

[JamesSwift]

Not sure what to say then. I run nixos on ~15 different VMs / minipcs, a total of I guess 6 physical machines. Never had to deal with a UPS battery dying, and havent had to do anything to address NUT breaking. I broadcast NUT via synology NAS though, so the only direct client of the UPS status is the NAS. Ive never once had an issue in the ~5 years Ive had it setup like this.