.. _mars.backup.rst:

MARS run from Previmer restart files (option **--run_from_backup**)
===================================================================

* You can make a run from Previmer restart files archived. For example, MANGAE have restart files archived since 2006 (every month now).

* Configurate backup restart directory in configuration file, section **directories**:

::

  #backup_restart_dir = '%(operational_dir)s/backup/' 
  backup_restart_dir = '/home/oo17/previmer/backup'

* To make MARS hindcast from 02/01/2014 to 03/01/2014, from Previmer archives:

::

    launch_mangae config_mangae.cfg -s 2014-01-02,00:00 -e 2014-01-03,00:00 --run_from_backup


* A start date is then proposed:

::

 Replay mode
 Option run_from_backup : searching the backup date nearest to date : 2014-01-02 00:00:00
 Backup found for date 2014-01-01 00:00:00
 Do you want to use this date as starting date (yes or no) ?


* Type *yes*, save files are copied and jobs are launched.

* You can for example make a run from archived restart file, and chose output data every 10 mn. Precise output in section **rank_1**:

::

    [[[output]]]
      time_startout = '00:00:00'
      pasor = 0.25

.. warning::  The backup date is searched 30 days around the given date. If you have the message *No Backup found near date 2006-03-01 00:00:00, aborting*, do not hesitate to check restart dates in **/home/oo17/previmer/backup**

::

 service7>506% pwd
 /home/oo17/previmer/backup/MANGAE2500/MANGAE2500-r1630/rank_1
 service7>507% ls
 save_20051003000000.nc  save_20080424000000.nc  save_20100502000000.nc  save_20130101000000.nc  save_20140101000000.nc
 save_20060101000000.nc  save_20080823000000.nc  save_20100831000000.nc  save_20130401000000.nc  save_20140201000000.nc
 save_20060630000000.nc  save_20081222000000.nc  save_20101230000000.nc  save_20130506000000.nc  save_20140301000000.nc
 save_20061227000000.nc  save_20090422000000.nc  save_20110430000000.nc  save_20130908000000.nc  save_20140401000000.nc
 save_20070427000000.nc  save_20090821000000.nc  save_20110829000000.nc  save_20131001000000.nc  save_20140501000000.nc
 save_20070826000000.nc  save_20091220000000.nc  save_20120101000000.nc  save_20131101000000.nc  save_20140601000000.nc
 save_20071225000000.nc  save_20100101000000.nc  save_20120502000000.nc  save_20131201000000.nc