[OpenAFS] create mountpoint for user in afs

John Hascall john@iastate.edu
Mon, 07 Jan 2008 11:08:02 CST

> > Assuming you followed the 
> >      /afs/<cell>    readonly mtpt
> >      /afs/.<cell>   readwrite mtpt
> > "standard".
> I read about this "standard" but I don't get it completly. Does it mean,
> that I have to write to /afs/.<cell>/user/file but read all the files
> from /afs/<cell>/user/file? Is there some kind of "automatic" in there
> or do I have to call "vos release" periodicaly?

   AFS prefers ReadOnly Volumes to ReadWrite Volumes,
   until it gets to a ReadWrite Volume.   So normally,
   the top of your afs tree is readonly and the actual
   data volume leaves are readwrite.

       touch /afs/@cell/user/matthais/file

   works fine, because:

              RO  RO    RO   RW
       touch /afs/@cell/file
              RO  RO    uh-oh

   fails.  Thus, the dot-cell RW mountpoint, thus:

       touch /afs/.@cell/file
              RO  RW



> I've created a RO site of my root.afs so I can access it with
> /afs/.<cell>/. At the moment both site are on the same server and
> partition.
> $ vos examine -id root.afs -localauth
> root.afs                          536870912 RW          4 K  On-line
> ...
>     RWrite: 536870912     ROnly: 536870913 
>     number of sites -> 2
>        server ac.mteege.de partition /vicepa RW Site 
>        server ac.mteege.de partition /vicepa RO Site
> Matthias
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