Computer maintenance system

Given the issue of potential problems with computers, and the general need for maintenance of our computer system (specifically that at the observatory) it was noted that in principle there are a lot of applications and indications (provided by the computers themselves) that might help with providing warning or error messages about the computers, or about the system in general. The main objective is to have a system that monitors the computers and provides warning and error messages so it can be determined if (preventive) maintenance is required. In relation to general maintenance, it will also be checked what is needed as for spares (or spare systems) to secure as much as possible continuous operation of the observing critical computer system.