Admin: TB and “guessed” $/TB(does not include cost of application, overhead, not “substance”)

• Google: 1 :100TB 5k$/TB/y

• Yahoo! 1 : 50TB 20k$/TB/y

• DB 1 : 5TB 60k$/TB/y

• Wall St. 1 : 1TB 400k$/TB/y (reported)

• hardware dominant cost only @ Google.

• How can we waste hardware to save people cost?

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