fsadm_hfs(1M)                                                 fsadm_hfs(1M)




 NAME    [Toc]    [Back]
      fsadm_hfs: fsadm - HFS file system administration command

 SYNOPSIS    [Toc]    [Back]
      /usr/sbin/fsadm [-F hfs] [-V] [-o specific_options] special

 DESCRIPTION    [Toc]    [Back]
      The fsadm command is designed to perform selected administration tasks
      on HFS file systems.  special is a device file containing an unmounted
      file system.

      Only a superuser can invoke fsadm.

    Options    [Toc]    [Back]
      -F hfs         Specify the HFS file system type.

      -o specific_options
                     Specify a list of comma separated suboptions and/or
                     keyword/attribute pairs from the list below.  The
                     following specific_options are valid on HFS file
                     systems.

                          largefiles     Converts a nolargefiles file system
                                         to a largefiles file system. The
                                         file system should be unmounted and
                                         must be in a clean state (see
                                         fsck(1M)).  A largefiles file
                                         system supports file sizes greater
                                         than 2 gigabytes.

                          nolargefiles   Converts a largefiles file system
                                         to a nolargefiles file system. The
                                         file system should be umounted and
                                         must be in a clean state (see
                                         fsck(1M)).  All largefiles should
                                         be purged from the file system for
                                         the conversion to succeed.

      -V             Echo the completed command line, but perform no other
                     action.  The command line is generated by incorporating
                     the user-specified options and other information
                     derived from /etc/fstab.  This option allows the user
                     to verify the command line.

 DIAGNOSTICS    [Toc]    [Back]
      Error and warning messages may originate from fsadm and fsck.  See
      fsadm(1M) or fsck(1M) to interpret the error and warning messages.

 EXAMPLES    [Toc]    [Back]
      Convert a nolargefiles HFS file system to a largefiles HFS file
      system:



 Hewlett-Packard Company            - 1 -   HP-UX 11i Version 2: August 2003






 fsadm_hfs(1M)                                                 fsadm_hfs(1M)




           fsadm -F hfs -o largefiles /dev/vg02/rlvol1

      Convert a largefiles HFS file system to a nolargefiles file system:

           fsadm -F hfs -o nolargefiles /dev/vg02/rlvol1

      Display relevant HFS file system statistics:

           fsadm -F hfs /dev/vg02/rlvol1

 WARNINGS    [Toc]    [Back]
      The size of a file system will impact the performance of the fsadm
      command.

      During conversion from largefiles file system to a nolargefiles file
      system fsadm scans the entire file system for a large file. This
      functionality degrades the performance of the fsadm command.

 FILES    [Toc]    [Back]
      /etc/fstab               Static information about the systems

 SEE ALSO    [Toc]    [Back]
      fsadm(1M), fsadm_vxfs(1M), fsck(1M), fstab(4), fs_wrapper(5).


 Hewlett-Packard Company            - 2 -   HP-UX 11i Version 2: August 2003