> > I recently heard about lessfs, which runs on top of FUSE to provide > > a file system that does block-level de-duplication. See: > > > > http://www.lessfs.com > > https://sourceforge.net/project/showfiles.php?group_id=257120 > > http://tokyocabinet.sourceforge.net/index.html > > > > The actual storage is several very large (sparse?) files on any > > file system(s) of your choice. It should provide all the benefits > > you expect: no issues of local limitations on hardlink counts, > > meta-data etc, and the database files can be copied or rsynced. > > I'm corresponding with the author to see if some additional useful > > features could be added.
Well, we've already got MD4 checksums of file blocks. And if I understand everything correctly, we DO GET collisions, therefore the hash chains. Of course, this if for 256k blocks, IIRC. And "only" 128 bit hashes. But I don't like the idea of relying on probabilities. I've got enough uncertainties by flaky hardware, bugs etc. I won't trust such a file system for backup data. Tino. -- "What we nourish flourishes." - "Was wir nähren erblüht." www.lichtkreis-chemnitz.de www.craniosacralzentrum.de ------------------------------------------------------------------------------ OpenSolaris 2009.06 is a cutting edge operating system for enterprises looking to deploy the next generation of Solaris that includes the latest innovations from Sun and the OpenSource community. Download a copy and enjoy capabilities such as Networking, Storage and Virtualization. Go to: http://p.sf.net/sfu/opensolaris-get _______________________________________________ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net List: https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki: http://backuppc.wiki.sourceforge.net Project: http://backuppc.sourceforge.net/