Tux3 Versioning Linux Filesystem
Tux3 is a write-anywhere, atomic commit, btree-based versioning filesystem. It is the spiritual and moral successor of Tux2, the most famous filesystem that was never released. The main purpose of Tux3 is to embody Daniel Phillips's new ideas on storage data versioning. The secondary goal is to provide a more efficient snapshotting and replication method for the Zumastor NAS project, and a tertiary goal is to be better than ZFS.
Official website - Daniel Phillips's official site, including mailman archive
irc://irc.oftc.net/#tux3 - #tux3 IRC channel on oftc.net logs
- Design and Implementation - my attempt at pulling Daniel's posts and designs notes together
Status
Tux3 is currently in the design stage and some userspace code is steadily appearing in the repository (see below).
September 24, 2008 - Tux3 gets a high speed atom smasher
- September 14, 2008 - Kernel port started! git tree announced (see below)
- September 4, 2008 - Tux3 running under FUSE
- September 4, 2008 - Tux3 Acting Like A Filesystem
- August 6, 2008 - Two week anniversay, Tux3 reads and writes one file.
- July 23, 2008 - project announced on LKML.
Source code
- Official repository - Daniel Phillips's official Mercurial repository/code browser
- Official kernel repository - Daniel Phillips's official kernel git tree "ddtree" tux3 branch
Tux3 at Bitbucket - bitbucket.org mirror of the official repository (nicer web interface) 
RSS feed
Links
LKML [ANNOUNCE] Tux3, a Versioning Filesystem - official project announcement, July 23, 2008
GMANE mailing list archive - nice mailing list archives: nntp, html, blog, and RSS
Wikipedia Article - Tux3
In the press
Linux Today - "Update On The Tux3 Filesystem", September 17, 2008
KernelTrap - "Tux3 Acting Like A Filesystem", September 4, 2008
- KernelTrap - "Tux3 Hierarchical Structure", August 14, 2008
- KernelTrap - "Comparing HAMMER and Tux3", August 7, 2008
/home/liquidat - "New Linux file system in development: Tux3", July 31, 2008 - lots of people 
digg it
LinuxPRO Magazine - "Tux Redux", July 25, 2008
- KernelTrap - "Tux3 Versioning Filesystem", July 25, 2008