That's statistics for you. While the large server room will have failures pretty frequently, an individual device may easily operate for a long time. Most of m

That's statistics for you. While the large server room will have failures pretty frequently, an individual device may easily operate for a long time. Most of my desktops lasted for many years without any failures. Some devices, like garage openers or sprinker controllers, lasted even longer -- they operated for 20+ years.