Official site: http://www.pidramble.com/

Many people complain that the Raspberry Pi is an underpowered, potentially unreliable computer unsuitable for hosting websites or doing any "real" server-like tasks. I beg to differ! In this presentation, I explore how well the Dramble—a cluster of five Raspberry Pis with a load balancer, two webservers, and a master/replica database configuration—could run a Fortune 500 website.

Slides: http://www.slideshare.net/geer....lingguy/highly-avail

More background: http://www.jeffgeerling.com/bl....og/2016/highly-avail