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Does anyone else feel that 410TB of user data seems quite a lot? If I have my maths right, even if all the 80 million objects are user data (as opposed to, say, logs) thats 5.3mb per object. Considering that most pinterest photos are from the web, that seems quite big.

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Yes, that number is ridiculous.

For reference, that's about four times bigger than the iTunes music catalog (20mio MP3 files * 5MB average filesize = 100TB).

5MB seems a bit small, they'd also have lossless copies right?

Yes, their total storage consumption is bigger, but the MP3-part of the library is in that ballpark.

Original image plus two (or more) scaled thumbnails. Also, I don't think they're doing any reuse (upload the same pin for 2 different S3 objects of the same image). 5.3Mb / object is still really high though.

Wow, if they are not doing any reuse that really really dumb. I can't back this up, but would have thought at least 50% of all pins are repins.... if that 410TB figure is correct, this oversight is costing them $18k a month. It would be simple to have a separate asset id and pin id...

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