:Kragen's Amazing List of Filesystems
By Kragen Sitaker
Just a collection of interesting filesystem links. Most are for Linux.
I'll maintain this and organize it better if there's demand. :)
Overlay filesystem, like union mounts:http://home.att.net/~artnaseef/ovlfs/ovlfs.html
Working Version Filesystem, storing everything in CVS (IIRC) over the network, compatible with NFS:http://www.wv.com/ ftp://ftp.pn.com/pub/bb/wvfs
audiofs for Linux, like on SGIs, lets you access an audio CD as a filesystem containing audio files:http://www.lwn.net/1999/0429/a/audiofs.html http://fly.cc.fer.hr/~ptolomei/audiofs/
'wrapfs' is a flexible fs, ported to Linux, FreeBSD, Solaris, by amd's author:http://www.cs.columbia.edu/~ezk/research/
wofs, a WORM filesystem for SunOS (in German):http://www.fokus.gmd.de/research/cc/glone/employees/joerg.schilling/private/ http://www.fokus.gmd.de/research/cc/glone/employees/joerg.schilling/private/wofs.ps.gz
PerlFS, which lets you write filesystem drivers in Perl and run them in userspace:http://dd-sh.assurdo.com/perlfs/
userfs, similar to PerlFS, but with backends in C++:ftp://summersoft.fay.ar.us/pub/linux/RPMS (0.9.6.2-2)linux-userfs-request@vger.rutgers.edu jeremy@sw.oz.au , Jeremy Fitzhardinge, who abandoned it in 1997http://www.ozemail.com.au/~mccormack/userfs.html
Lots of nice information at http://www.hex.net/~cbbrowne/linuxkernel.html on filesystems and other kernel things.
e2compr -- transparent compression for ext2fs -- is athttp://www.netspace.net.au/~reiter/e2compr/ orhttp://debs.fuller.edu/e2compr/
Of course, there's Coda, which is similar to AFS, but supports disconnected operation:http://www.coda.cs.cmu.edu/
"Arla", a free implementation of AFS (working client, experimental kernel):http://www.stacken.kth.se/projekt/arla/
"Podfuk" (Czech for fiddle), another userfs/PerlFS/ofs equiv -- but this time using Coda. Includes fs-based decompression and untarring as applications:http://atrey.karlin.mff.cuni.cz/~pavel/podfuk/podfuk.html
"AVFS" -- "A virtual filesystem" -- allows transparent tar, gzip, zip, bzip2, and rar reading. In C library, not kernel:http://www.inf.bme.hu/~mszeredi/avfs/
"docfs" -- "unified documentation sotrage and retrieval for Linux systems" -- generates documentation on the fly. Sort of like an automounter for document formats. Appears to have been conceived in mid-1997, but not implemented:http://www.on-line.de/~lutz.behnke/docfs/index.html
"devfs" -- like Plan9's filesystem. Basically an alternative to "special files":http://www.atnf.csiro.au/~rgooch/linux/kernel-patches.html http://www.atnf.csiro.au/~rgooch/linux/docs/devfs.txt
The standard for large file access in Unix:http://www.sas.com/standards/large.file/
The famed reiserfs, based on balanced trees, intended to allow storage of many small files:http://idiom.com/~beverly/reiserfs.html http://devlinux.com/namesys/
Log-structured filesystem projects:http://collective.cpoint.net/prof/lfs/ -- abandoned since 1998-10-02 at leastlinux-ljfs-request@majordomo.ibasys.net -- central discussion pointhttp://www.complang.tuwien.ac.at/czezatke/lfs.html -- appears to be viable, but not yet in beta (by Christian Czezatke, originally by Adam of Yggdrasil?)
UDF, the DVD-ROM and packet-written CD filesystem:http://ca.us.mirrors.freshmeat.net/appindex/1998/10/19/908852708.html http://trylinux.com/projects/udf/
Global File System, a 64-bit filesystem for shared disks:http://ma.us.mirrors.freshmeat.net/appindex/1999/01/28/917557638.html http://gfs.lcse.umn.edu/ majordomo@lcse.umn.edu">majordomo@lcse.umn.edu , body "subscribe gfs-announce" or "subscribe gfs-devel"
Time Capsule Filesystem: intended to be decipherable without a specification, useful for long-term archival:http://www-swiss.ai.mit.edu/~boogles/papers/tcfs-thesis/thesis.html
TCFS, the transparent cryptographic filesystem (it talks NFS):http://www.globenet.it/~ermmau/tcfs/ http://mikonos.dia.unisa.it/tcfs/ http://tcfs.dia.unisa.it/ http://wwwbs.informatik.htw-dresden.de/svortrag/ai94/Thieme/mytcfs.html (paper in German)majordomo@edu-gw.dia.unisa.it ("subscribe tcfslist" in body)
vs3fs: experimental steganographic filesystem:http://ca.us.mirrors.freshmeat.net/appindex/1998/10/10/908004177.html apparently has become "sfspatch" and "sfstools":http://ca.us.mirrors.freshmeat.net/appindex/1999/03/10/921049985.html http://www.linux-security.org/sfs/ http://www.leg.uct.ac.za/~carl/vs3fs/ http://www.leg.uct.ac.za/~carl/vs3fs/report.html
cfs: cryptographic filesystem: similar to tcfs. Originally by Matt Blaze; available from cfs@research.att.com for USians.http://www.debian.org/Packages/stable/otherosfs/cfs.html ftp://ftp.ox.ac.uk/pub/crypto/misc/ ftp://research.att.com/dist/mab/ has information about it.
AtFS, "The Attributed File System" -- versioning, application-defined arbitrary key=value metadata, C-library-based. Part of "ShapeTools", a software configuration management system.http://www.debian.org.au/Packages/stable/libs/atfs.html
Undelete for ext2fs:http://amadeus.upr.clu.edu/~undelete/ undelete@amadeus.upr.clu.edu http://ca.us.mirrors.freshmeat.net/appindex/1998/10/14/908382417.html
Various foreign filesystems for Linux:
Talkback(s)
Name and Date
Ricky Ng-Adam
Thiago Lima
Daniel Pearson
David Zverina
Stein Gjoen
Ron Perrella
Eric Garland
Usha Janga
Arnd Bergmann
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