As an additional data point - I have ~1000 7002 cores in my home DC (8 dual socket R7525s with 48-64 cores each) that run kubernetes but are connected to a bat

As an additional data point - I have ~1000 7002 cores in my home DC (8 dual socket R7525s with 48-64 cores each) that run kubernetes but are connected to a battery backup and use kexec to perform upgrades. So, while I am very bought into the cattle not pets philosophy, it's rare that any of these machines need to be turned off and I could see them being on for three years continuously without problem otherwise.