Not OP. But with an unmanaged server it is on you. You are in full control and can leave it powered off if you so desire.

Monitorering is then your responsibility. They have no login/account on your host.

For any hardware issues I have had I have simply created a support ticket. They have always been really fast at responding and fixing for me. If you report a disk and serial number it gets swapped in no time.

They have managed offerings as well. I have never used those.

Hi there, I hope that it's okay that I respond here since you all mentioned Hetzner. What "clan" wrote here is correct. For our dedicated servers, which are un-managed, customers are responsible for monitoring. And naturally, if something comes up, our team will be happy to investigate it and replace the hardware (or even entire server) free of cost. It helps to speed up the process if you can document the failure as clearly as possible for our team by logging onto your account, navigating to the correct server, and opening a support ticket. You can also ask the team to run a full hardware check for you. For customers who don't want to spend as much time or effort on sysadmin, we have managed servers, where monitoring and other support is included. --Katie, Hetzner