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