Revision de003d78 man/gnt-instance.rst

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   The LVM volume group. This works only for LVM and DRBD devices.
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metavg


  		





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   This options specifies a different VG for the metadata device. This


  		





  
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   This option specifies a different VG for the metadata device. This


  		





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   works only for DRBD devices. If not specified, the default metavg


  		





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   of the node-group (possibly inherited from the cluster-wide settings)


  		





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   will be used.


  		





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access


  		





  
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   If 'userspace', instance will access this disk directly without going


  		





  
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   through a block device, avoiding expensive context switches with


  		





  
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   kernel space. This options works only for RBD and Gluster devices. If


  		





  
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   not specified, the default access of the node-group (possibly


  		





  
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   inherited from the cluster-wide settings) will be used.


  		





  
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When creating ExtStorage disks, also arbitrary parameters can be passed,


  		





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to the ExtStorage provider. Those parameters are passed as additional


  		





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comma separated options. Therefore, an ExtStorage disk provided by


  		





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The ``--disk add:size=*SIZE*,[options..]`` option adds a disk to the


  		





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instance, and ``--disk *N*:add:size=*SIZE*,[options..]`` will add a disk


  		





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to the the instance at a specific index. The available options are the


  		





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same as in the **add** command(``spindles``, ``mode``, ``name``, ``vg``,


  		





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``metavg``). Per default, gnt-instance waits for the disk mirror to sync.


  		





  
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same as in the **add** command (``spindles``, ``mode``, ``name``, ``vg``,


  		





  
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``metavg`` and ``access``). Per default, gnt-instance waits for the disk


  		





  
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mirror to sync.


  		





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If you do not want this behavior, use the ``--no-wait-for-sync`` option.


  		





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When adding an ExtStorage disk, the ``provider=*PROVIDER*`` option is


  		





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also mandatory and specifies the ExtStorage provider. Also, for


  		












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