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And I thought this was a reference to a Win95 problem https://www.slashgear.com/1414245/jennifer-aniston-matthew-p...

Yeah Block level dedupe has been an industry standard for decades. Tracking file hashes? Why?

And I see above that this is a self-hosted platform and I still don’t get it. I was running terabytes of ZFS with dedupe=on on cheap supermicro gear in 2012

File hashes are great to get two systems to work together to dedupe themselves. I have a Windows backup that sends hashes to a backup server, so we don't back up crud we already have.

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