I believe this is a slightly controversial topic, at least from what I have gathered so far. Some say its best to leave the server on to spare the life time of the spinning rust. Other seem to prefer to save power and boot the server off each night. So wanted to chip in and hear what folks here do and why do what you do.
Bonus question; Do you guys have a UPS? Is it a must have for a homelab, or does it just depend on the usecase?
My NAS and production server run 24/7, I’ve got a dev server that I turn off if I’m not expecting to use it for a week or so. Usually when I do that, I immediately need it for something and I’m away from home. I have chosen equipment to try and minimize energy use to allow for constant running.
My view on UPS is it’s a crucial part of getting your availability percentage up. As my home lab turned into crucial services I used to replace commercial cloud options, that became more important to me. Whether it is to you will depend on what you’re running and why.
I’ve heard that one of the most likely times for hard drives to fail is on power up, and it also makes sense to me that the heating/cooling cycles would be bad for the magnetic coating, so my NAS is configured to keep them spinning, and it hasn’t been turned off since I last did a drive change.