Experiment focused on new file system for Linux

By John Fontana, NetworkWorld.com, 10/03/05

The Cyber Communications Laboratory Group of NTT Laboratories, the R&D affiliate of Nippon Telegraph and Telephone Corporation, last week started the New Implementation of a Log-structured File System (NILSF) project to develop a log-structured file system for the Linux kernel 2.6.

According to the research group, "A log-structured file system has the characteristic that all file system data including metadata is written in a log-like format. Data is never overwritten, only appended in this file system. This greatly improves performance because there is little overhead regarding disk seeks." The NILFS Project is on open source effort that the group is releasing under the GNU General Public License. This is not the first project of hits kinds, however, the group sites three other log-structured file system projects or implementations on its Web site.

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