Comment: 5 Zettabytes? (Score 4, Insightful) 138
I'm surprised I don't see anyone here questioning this 5 zettabyte number.
The biggest drives currently manufactured are 4 terabyte 3.5" drives. 5 zetabytes would require 1.25 billion of those drives. A great price on a 4TB drive right now is $190. I doubt there's enough margin in them to make this possible, but let's just say that based on the insane quantity they get them for $150 each. That's $187 billion for the drives alone, nothing for the computers and racks and air conditioning and all. The NSA's budget is estimated at 8 billion a year. $187 billion is 23 times their yearly budget. It would be about 3% of total federal spending for a year... just for the drives. Total facility costs would certainly run many times that... it would probably cost more than an entire year's military spending to build a 5 zettabyte data center.
Also, you can fit about 500 terabytes in a server cabinet. That means 10 million server cabinets. A server cabinet is about 15 cubic feet of volume. So just the cabinets alone would run 150 million cubic feet. And that's just storage, not even including computers. And it's not like you can pack them in solid, of course. If you can make a datacenter with one third of its total volume being server racks, that would be amazing. The largest building in the world is only 472 million cubic feet, this would have to equal or surpass it.
Also, the entire world wide market for hard drives is only a little over 30 billion a year... this one project would consume over 6 times as much value in hard drives as every other use in the world combined for the year.
Unless the NSA has developed their own mass storage technology that no one else knows about and is radically superior to anything commercially available, I'm guessing someone's exaggerating or got their numbers wrong.
Also, you can fit about 500 terabytes in a server cabinet. That means 10 million server cabinets. A server cabinet is about 15 cubic feet of volume. So just the cabinets alone would run 150 million cubic feet. And that's just storage, not even including computers. And it's not like you can pack them in solid, of course. If you can make a datacenter with one third of its total volume being server racks, that would be amazing. The largest building in the world is only 472 million cubic feet, this would have to equal or surpass it.
Also, the entire world wide market for hard drives is only a little over 30 billion a year... this one project would consume over 6 times as much value in hard drives as every other use in the world combined for the year.
Unless the NSA has developed their own mass storage technology that no one else knows about and is radically superior to anything commercially available, I'm guessing someone's exaggerating or got their numbers wrong.