The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/coda/

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Name Size Last modified (GMT) Description
Back Parent directory 2008-12-15 13:59:50
File 00READ 561 bytes 1998-10-28 19:39:12
File README 2861 bytes 1998-09-02 19:09:53
File TODO 438 bytes 1998-09-02 19:09:53
C file cnode.h 10178 bytes 1999-08-29 16:21:54
C file coda.h 17892 bytes 1999-08-29 16:21:54
C file coda_fbsd.c 5508 bytes 1999-08-29 16:21:54
C file coda_io.h 4448 bytes 1999-08-29 16:21:55
C file coda_kernel.h 2528 bytes 1999-08-29 16:21:55
C file coda_namecache.c 26005 bytes 1999-08-29 16:21:55
C file coda_namecache.h 9524 bytes 1999-08-29 16:21:56
C file coda_opstats.h 4708 bytes 1999-08-29 16:21:56
C file coda_pioctl.h 4593 bytes 1999-08-29 16:21:56
C file coda_psdev.c 22013 bytes 1999-08-29 16:21:57
C file coda_psdev.h 1926 bytes 1999-08-29 16:21:57
C file coda_subr.c 20764 bytes 1999-08-29 16:21:57
C file coda_subr.h 2000 bytes 1999-08-29 16:21:58
C file coda_venus.c 18656 bytes 1999-08-29 16:21:58
C file coda_venus.h 3953 bytes 1999-08-29 16:21:59
C file coda_vfsops.c 21032 bytes 1999-08-29 16:21:59
C file coda_vfsops.h 2556 bytes 1999-08-29 16:22:00
C file coda_vnops.c 62443 bytes 1999-08-29 16:22:00
C file coda_vnops.h 4989 bytes 1999-08-29 16:22:01

    1                 Announcing the Availability of the
    2                         Coda Distributed
    3                            Filesystem
    4                               for
    5                          BSD Unix Systems
    6 
    7         Coda is a distributed file system like NFS and AFS.  It is
    8 freely available, like NFS.  But it functions much like AFS in being a
    9 "stateful" file system.  Coda and AFS cache files on your local
   10 machine to improve performance.  But Coda goes a step further than AFS
   11 by letting you access the cached files when there is no available
   12 network, viz. disconnected laptops and network outages.  In Coda, both
   13 the client and server are outside the kernel which makes them easier
   14 to experiment with.
   15 
   16 To get more information on Coda, I would like to refer people to
   17         http://www.coda.cs.cmu.edu
   18 There is a wealth of documents, papers, and theses there.  There is
   19 also a good introduction to the Coda File System in
   20         http://www.coda.cs.cmu.edu/ljpaper/lj.html
   21 
   22 Coda was originally developed as an academic prototype/testbed.  It is
   23 being polished and rewritten where necessary.  Coda is a work in
   24 progress and does have bugs.  It is, though, very usable.  Our
   25 interest is in making Coda available to as many people as possible and
   26 to have Coda evolve and flourish.
   27 
   28 The bulk of the Coda file system code supports the Coda client
   29 program, the Coda server program and the utilities needed by both.
   30 All these programs are unix programs and can run equally well on any
   31 Unix platform.  Our main development thrust is improving these
   32 programs.  There is a small part of Coda that deals with the kernel to
   33 file system interface.  This code is OS specific (but should not be
   34 platform specific).
   35 
   36 Coda is currently available for several OS's and platforms:
   37         Freebsd-2.2.5: i386
   38         Freebsd-2.2.6: i386
   39         Freebsd -current: i386
   40         linux 2.0: i386 & sparc
   41         linux 2.1: i386 & sparc
   42         NetBSD 1.3: i386
   43         NetBSD -current: i386
   44 The relevant sources, binaries, and docs can be found in
   45         ftp://ftp.coda.cs.cmu.edu/pub/coda/
   46 
   47 We intend to come out with new Coda releases often, not daily.  We
   48 don't want to slight any OS/platform not mentioned above.  We are just
   49 limited in our resources as to what we can support internally.  We
   50 will be happy to integrate OpenBSD support as well as other OS
   51 support.  Also, adding platform support should be relatively easy and
   52 we can discuss this.  The only difficulty is that Coda has a light weight
   53 process package.  It does some manipulations in assembler which would
   54 have to be redone for a different platform.
   55 
   56 There are several mailing lists @coda.cs.cmu.edu that discuss coda:
   57 coda-announce and linux-coda.  We are going to revise linux-coda to be
   58 OS neutral, since it is mainly Coda we want to discuss.  We appreciate
   59 comments, feedback, bug reports, bug fixes, enhancements, etc.
   60 

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