重複排除FS
http://www.lessfs.com/
A high performance inline data deduplicating filesystem for Linux.
lessfs is released under the GNU GPLv3 license
How will lessfs2 be different?
Obsoleted:
* Support for tokyocabinet as datastore has been removed.
New features:
* Support for snapshots
* Uses the FUSE low level API
* Fast inode cloning
* Support for hamsterdb and maybe BerkeleyDB to store the metadata as well as tokyocabinet
* Self healing raid*
* Multimaster as well as master slave.
* Automatic storage tiering based up-on usage, per chunk.
めも、未検証
