This topic was suggested by one of our users, Bart Silverstrim. He was curious about how companies could maintain an environment
where maintenance downtimes would not actually affect customer experience. Think of large sites like Google, Facebook, CNN, pretty much
any site in the quantcast or alexa top 100. These sites maintain extremely good uptime numbers, but how do they do it?
It’s no secret that sites like this employ a lot of servers to handle content delivery. There are not only load balanced server clusters
but also CDNs and caching proxies that help mitigate some of the load on t …