Revision 3abb0a5c 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


  		





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


  		





  
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  migrate`` for every primary instance running on the node that can be


  		





  
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  migrated and ``gnt-instance failover`` for every primary instance that


  		





  
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  cannot be migrated.


  		





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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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  in secondary node change mode (``--new-secondary``) for every DRBD


  		





  
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  instance that the node is a secondary for.


  		





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


  		





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See **ganeti**\(7) for a description of ``--submit`` and other common


  		












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