On Wednesday, July 27 at 10:42 PM, quoth Ken Lyons:
Say [EMAIL PROTECTED] sends 100 emails to his co-workers. Currently each email would be copied to each users mailbox. We can configure our email system to put a SYMLINK in each users mailbox to a single copy of the email.
Thus saving (99 * email size in HDD space).

Have you seen these three links?:

http://www.soe.ucsc.edu/~hongbo/publications/dde-msst04.pdf
http://www.cs.bell-labs.com/sys/doc/venti/venti.html
http://www.archivas.com:8080/product_info/architecture_wp.htm

The first two are research papers of other people who already did duplicate block elimination in the filesystem, the third is (as far as I can tell) someone selling a SAN that does that.

~Kyle
--
I hope our wisdom will grow with our power, and teach us, that the less we use our power the greater it will be.
                                                    -- Thomas Jefferson

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