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This article or section needs sources or references that appear in reliable, third-party publications. Primary sources and sources affiliated with the subject of the article are generally not sufficient for a Wikipedia article. Please include more appropriate citations from reliable sources, or discuss the issue on the talk page. (May 2008) |
Aufs (AnotherUnionFS) is an alternative version of unionfs, a filesystem service which implements a union mount for Linux file systems. It has been developed by Junjiro Okajima since early 2006 [1].
It is a complete rewriting of unionfs, with the aim of improving reliability and performance. It has also introduced some new concepts, like writable branch balancing, and many smaller improvements [2]. Some of these new ideas are now re-implemented in the unionfs 2.x branch.
Another big difference is that part of unionfs 1.x is currently merged in the linux kernel (and 2.x in the --mm experimental tree) whereas aufs is not. This is because the author considers that "Aufs is in still development stage"[3].
Aufs has been chosen for replacement of unionfs by the Knoppix live CD Linux distribution since the end of 2006, "for better stability & performance"[4] This file system replaced union fs in SLAX since version 6.
Aufs replaced unionfs in Xandros Linux distribution, availiable in ASUS Eee PC model 901.
Notes
- ^ History of the Aufs project maintained by Junjiro Okajima
- ^ Goals and new features of aufs in the project's homepage
- ^ Reference to the development stage and list of things to be fixed
- ^ Knoppix release note explaining the switch from unionfs to aufs.
See also
- File system
- Union mount, describing the concept of merging file system branches
- UnionFS, the original union mount project, developed by Professor Erez Zadok and his team at Stony Brook University.
External links
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