First Look: Apple's Massive iDataCenter
datacenterknowledge.com
datacenterknowledge.com
Yeah right, they can't even make MobileMe work despite people inexplicably throwing gobs of money at them to do just that. How many years have they had to fix that garbage? Although I guess they don't need to when the expectations are so low: the last satisfied customer I talked to said "It works perfectly, other than occasionally deleting all my contacts."
(I say this as someone who's given .Mac and MobileMe one shot each and almost shot myself in the face as a result)
I think the upshot here is simple: It's on.
I suppose their market share puts some pretty heavy demands on scalability, but a 500k sf datacenter is a lot of datacenter, and storage is fairly dense these days.
Add to that the fact that music files deduplicate very well across millions of people and I'm left wondering if they're doing photos and video too, or something else altogether, or if my back of the envelope estimates of the square footage requirements for such a service are just way off.