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b/lib/client/gnt_node.py
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# Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Google Inc.


  		





  
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# Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Google Inc.


  		





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#


  		





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# This program is free software; you can redistribute it and/or modify


  		





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# it under the terms of the GNU General Public License as published by


  		





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    [FORCE_OPT, IALLOCATOR_OPT, NEW_SECONDARY_OPT, EARLY_RELEASE_OPT,


  		





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     PRIORITY_OPT, PRIMARY_ONLY_OPT, SECONDARY_ONLY_OPT],


  		





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    "[-f] {-I <iallocator> | -n <dst>} <node>",


  		





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    "Relocate the secondary instances from a node"


  		





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    " to other nodes"),


  		





  
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    "Relocate the primary and/or secondary instances from a node"),


  		





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  "failover": (


  		





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    FailoverNode, ARGS_ONE_NODE, [FORCE_OPT, IGNORE_CONSIST_OPT,


  		





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                                  IALLOCATOR_OPT, PRIORITY_OPT],


  		












  

    
      b/man/gnt-node.rst
    
  






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Note that this command is equivalent to using per-instance commands for


  		





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each affected instance individually:


  		





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- ``--primary-only`` is equivalent to ``gnt-instance failover/migration``


  		





  
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- ``--primary-only`` is equivalent to ``gnt-instance


  		





  
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  failover/migration`` for non-DRBD instances, but for DRBD instances


  		





  
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  it's different, and usually is a slow process (it will change the


  		





  
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  primary to another node while keeping the secondary, this requiring


  		





  
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  data copies, whereas failover/migrate will only toggle the


  		





  
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  primary/secondary roles, a fast process)


  		





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- ``--secondary-only`` is equivalent to ``gnt-instance replace-disks``


  		





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  in the secondary node change mode (only valid for DRBD instances)


  		





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- when neither of the above is done a combination of the two cases is run


  		












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