lessfs – A high performance inline data deduplicating filesystem for Linux.
lessfs is released under the GNU GPLv3 license and can be downloaded from:
http://sourceforge.net/project/showfiles.php?group_id=257120
Lessfs mailing list : lessfs@googlegroups.com
EPRD – An eventually persistent kernel based ram disk or disk cache.
http://sourceforge.net/projects/eprd/files/
TIER – A tiered storage blockdevice
http://sourceforge.net/projects/tier/files/
Tier mailing list : tier-users@lists.sourceforge.net
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Lessfs offers a flexible solution to utilize data deduplication on affordable commodity hardware. Lessfs is a high-performance inline data deduplication filesystem written for Linux and is currently licensed under the GNU General Public License version 3. It also supports LZO, QuickLZ and BZip compression (among a couple others), and data encryption as well as replication.