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Comment by switch007 | Hacker News Reader

I love tarsnap. Thank you Colin! :)

  $ tarsnap --print-stats
                                       Total size    Compressed size
  All archives                               535 GB           233 GB
    (unique data)                            1.2 GB           438 MB

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What is "unique data"? Does it do de-duplication across users? Are you paying only for unique compressed data?

http://www.tarsnap.com/faq.html#DEDUPE

Deduplication across users isn't possible due to encryption, but it is done locally on your own data, so it is true that you only pay for unique and compressed data.

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