Since the early days of systems administration, a god has hovered over server rooms: uptime. uptime tells us how long a server has been on, which indirectly indicates how long it has been since it had a problem requiring a reboot. Operating systems have always had commands to display server uptime, figures that, indirectly, were also indicative of how good a job the administrators were doing. But the gods aren’t eternal; they are outdone, or simply replaced, by other gods. The time must come for even uptime to fall.