Log-structured file system

This article is about the general concept of log-structured file systems. For the NetBSD file system, see Log-structured File System (BSD). For the Linux log-structured Flash file system, see LogFS.

A log-structured filesystem is a file system in which data and metadata are written sequentially to a circular buffer, called a log. The design was first proposed in 1988 by John K. Ousterhout and Fred Douglis and first implemented in 1992 by Ousterhout and Mendel Rosenblum for the Unix-like Sprite distributed operating system.[1]

  1. ^ John K. Ousterhout, Mendel Rosenblum. (1991), The Design and Implementation of a Log-Structured File System (PDF), University of California, Berkeley