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Time to search for prior artTime to search for prior artPosted Sep 19, 2012 3:24 UTC (Wed) by Cyberax (✭ supporter ✭, #52523)In reply to: Time to search for prior art by rknight Parent article: Rackspace sued for hosting GitHub
"Fossil" fileserver on top of "venti" filesystem did this in Plan9 in 1993. And the idea itself is even more ancient.
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Time to search for prior art Posted Sep 27, 2012 12:26 UTC (Thu) by njs (guest, #40338) [Link]
The idea was sufficiently well known for Val Henson (now Val Aurora) to publish a paper arguing against it in May 2003; she cites 6 different earlier systems using it: http://valerieaurora.org/review/hash/node2.html
The oldest appears to be rsync, with Tridge's thesis coming out in 1999, and for de-duplication specifically I'd check the paper on a backup system called "Pastiche" that was formally published in 2002...
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