Eric Rollins > Genezzo-Contrib-Clustered-0.34 > genprepundo.pl

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NAME ^

genprepundo.pl - Prepare undo file for Clustered Genezzo

SYNOPSIS ^

genprepundo.pl [options]

Options:

    -help                      brief help message
    -man                       full documentation
    -gnz_home                  supply a directory for the gnz_home
    -undo_filename             name of the undo file
    -number_of_processes
    -undo_blocks_per_process

OPTIONS ^

-help
    Print a brief help message and exits.
-man
    Prints the manual page and exits.
-gnz_home
    Supply the location for the gnz_home installation.  If 
    specified, it overrides the GNZ_HOME environment variable.
-undo_filename
    Supply the name of the undo file.  If not specified, it
    defaults to undo.und for file system devices.  It must
    be specified for raw devices.
-number_of_processes
    Specify the maximum number of processes supported by undo.
    If not specified defaults to 256.
-undo_blocks_per_process
    Specify the number of blocks (which list fileno-blockno pairs)
    for a process.  If not specified defaults to 220.

DESCRIPTION ^

  Creates or re-initializes undo file under GNZ_HOME.  By default
  file is named undo.und.  File header contains basic information about
  all other files in Genezzo installation.  genprepundo.pl must
  be run whenever a new file is added to the Genezzo installation.

  Undo file format is documented in Clustered.pm.

AUTHOR ^

  Eric Rollins, rollins@acm.org

COPYRIGHT AND LICENSE ^

  Copyright (c) 2005 Eric Rollins.  All rights reserved.

  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation; either version 2 of the License, or
  any later version.


  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

  Address bug reports and comments to rollins@acm.org
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