Once upon a time, the absence of humming might have meant something was catastrophically wrong. But a glance at your systems' management UI confirms that, indeed, your apps are being served. It's just that your servers in your India-based datacenter facility are doing most of the work -- and conveniently, it's off-peak hours there, which means you're paying a fraction of the energy costs. The fact that machines are self-adjusting their power consumption and virtual workloads -- even powering on and off as needed (or not) -- helps shrink the electric bill even more.