Re: "Low Cost" and "Data Center"
"Data center items (see article on BA's fiasco) should be pretty "bullet proof" and reliable"
For cloud, the exact opposite is the case to a BA style DC - cloud systems are designed to identify failing systems and either migrate VMs to other locations, or if the failure is catastrophic to restart the systems elsewhere. Stack em high and keep em simple, software will handle the rest.
The underlying systems are definitely not bullet proof - take a look at the OpenCompute server design for an example of what they do, they favour power efficiency over power redundancy.
