Revision f1dff7ec 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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