[tommoor]

This post makes it sound like Github has it's own data centers and power infrastructure structure, this is definitely news to me.. I'd presumed co-lo at best.

[noazark]

The last news I've heard about it was back in 2009, https://github.com/blog/493-github-is-moving-to-rackspace. But I've also heard that they have some infrastructure on site (clearly not what they were talking about).

[seiji]

"data center" is a confusing term.

Very few companies build their "data centers" (apple, google, amazon, NSA, actual 'data center' companies, etc). Most companies rent cage space in a larger data center and call that their "private data center." Smaller companies will rent a few dedicated servers or colo half racks from other resellers.

[brazzledazzle]

Unless it's explicitly stated to be a wholly owned data center I always assume companies are talking about rack space in a bigger DC like supernap.