NAME

       mkatfs - create and configure AtFS object repository and derived object cache

SYNOPSIS

       mkatfs  [-cAmax_cached_per_cacheattr] [-cNmax_cached_per_name] [-cTmax_total_cached] [-cQ]
       [-ggroup] [-h] [-lpath] [-mmode] [-v] pathnames

DESCRIPTION

       mkatfs may be used to create an AtFS object repository, to link an existing repository, to
       configure  a  repository,  or  to  set  the size attributes of an derived object cache. It
       applies to all directories occurring in the pathnames list. If the list is  empty,  mkatfs
       performs its action in the current directory.

       Creating  an  AtFS  object  repository makes a directory named AtFS with several files and
       subdirectories in it.

       The -l option causes mkatfs to link an existing AtFS repository to the  current  directory
       (or  the  directories  in  the  pathnames  list).   The  -l option expects a pathname to a
       directory containing an AtFS repository or a link to an  AtFS  repository  (links  may  be
       chained) as argument. When linking a repository, mkatfs either creates a symbolic link or,
       if symbolic links are not available on your system, a file  containing  the  name  of  the
       target directory. The latter will be interpreted by AtFS like a symbolic link.

       Configuring  an  AtFS  repository means, that the group and the protection may be changed.
       These operations perform a chgrp(1) and a chmod(1) operation on the AtFS directory and all
       its subdirectories.

       The -cT, -cN, and -cA options set the size of the derived object cache in the created AtFS
       object repository. You may set the maximum total  number  (cT)  of  derived  files  to  be
       stored,  the  maximum  number  of  derived  files  per name (cN) and the maximum number of
       derived files with the same name and the same caching attribute (cA). The relationship  of
       the  three  values must always be cT >= cN >= cA. For more information on that topic check
       the cacheadm(1) manual page. The -cQ option queries the actual settings  for  the  derived
       object cache size.

OPTIONS

       -cA max_cached_per_cacheattr
               Set  the  maximum  number of derived files with the same name and the same caching
               attribute to be stored. Default is 1.

       -cN max_cached_per_name
               Set the maximum number of derived files with the same name to be  stored.  Default
               is 3.

       -cT max_total_cached
               Set  the  total maximum number of derived files to be stored in the derived object
               cache. Default is 64.  -g group Set the group id of  the  generated  directory  to
               group (see chgrp(1)).  -h Display help message.

       -l path
               Create  an  AtFS  directory  entry  by setting a symbolic link to an existing AtFS
               object repository, rather than creating a new (empty) one.  On System V  machines,
               a  file containing the target directory name will be generated. The AtFS functions
               will interpret this as surrogate for a symbolic link.

       -m mode
               Set the mode of all generated directories to mode (see chmod(1)).

       -v      Output version identification string.

SEE ALSO

       chgrp(1), chmod(1), atfsrepair(1), af_cache(3)

AUTHOR

       Andreas.Lampen@cs.tu-berlin.de