from the single-breasted-cumulus-spotted-in-lorton dept.
1sockchuck writes "How many servers does it take to power Amazon's huge cloud computing operation? A researcher estimates that Amazon Web Services is using at least 454,400 servers in seven data center hubs around the globe. The analysis suggests up to 70 percent of those servers may be in Virginia."
Computers are unreliable, but humans are even more unreliable.
Any system which depends on human reliability is unreliable.