I just copied that reply from the person that built the actual rack, but I would love to hear more about your iOS testing infrastructure/process!
Me too! Before we used fruitstrap[0] we used DeviceAnywhere. This was a 2U rack unit that contained a franken-iPhone. The hardware buttons were soldered up to GPIO on the DeviceAnywhere.
Would love to hear more about your automated testing!
For those who showed interest in learning more about our infrastructure/automated testing process, if you could drop me an email? gp at our corp domain fb.com.
I don't work on the team anymore, but I can probably start off a thread with the right people involved from Facebook's side.
Here is a post that Jay Parikh (VP of Infrastructure) made about it. http://tinyurl.com/cnvss4v
Our density isn't as high (we have 64 minis) because of cooling and cabling that we designed according to our datacenter cooling standards.
@jurre - If you want to chat about our design, message me and I can put you in touch with our hardware designer.