Date: Thu, 26 Apr 2007 13:35:35 +0700 (ICT) From: Olivier Nicole <on@cs.ait.ac.th> To: m.seaman@infracaninophile.co.uk Cc: garrisot@otc.edu, freebsd-questions@freebsd.org Subject: Re: Single Instance Service Message-ID: <200704260635.l3Q6ZZhL090019@banyan.cs.ait.ac.th> In-Reply-To: <463044C1.6080107@infracaninophile.co.uk> (message from Matthew Seaman on Thu, 26 Apr 2007 07:20:49 %2B0100) References: <06D1B6D4926222458F803D0D3EDCCB7E01D0A4AC@EXM1.otc.edu> <463044C1.6080107@infracaninophile.co.uk>
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> Sure it is. You will need to write a small shell script to scan > your disk volume and calculate the checksum of each file. When > ever it finds a duplicated checksum, then it copies the file into > the central store and replaces the on-disk copies with symbolic > links. That's fairly trivial to write. Beside, what should be the behaviour when one wishes to modify his own copy of a document? How does Single Instance acts in that case? If you establish a link, there is only one version of the file, once and forever (unless you go and unlink it manually), so when one modifies the file, modification applies for everyone. Olivier
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