Log-structured file system: Difference between revisions

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While ZFS uses an intent log, it is quite different than a log-structured filesystem
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* [[NILFS]] is a log-structured file system implementation for [[Linux]] by [[NTT/Verio]] which supports snapshots. As of May 2007, it is still in [[software release life cycle#Alpha|alpha]] and not ready for production use.
* [[LinLogFS]] (formerly dtfs) and LFS ([http://logfs.sourceforge.net/ http://logfs.sourceforge.net/]) are log-structured file system implementations for Linux. The latter was part of [[Google Summer of Code 2005]]. Both projects have been abandoned.
* [[ZFS]] from [[Sun Microsystems|Sun]] is a log-structured file system which supports snapshotting. However, it uses [[reference counting]] instead of [[garbage collection (computer science)|garbage collection]] to manage free space.
* [http://aiya.ms.mff.cuni.cz/lfs LFS] is another log-structured file system for Linux developed Charles University, Prague. It was to include support for snapshots and indexed directories, but development has since ceased.
* [http://logfs.org/logfs/ LogFS] is a scalable flash filesystem, intended to replace JFFS2. Early in development.