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KVM. |
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Beware that the default name Ganeti uses is ``xen-br0`` (which was used |
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in Xen 2.0) while Xen 3.0 uses ``xenbr0`` by default. The default bridge
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your Ganeti cluster will use for new instances can be specified at
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cluster initialization time.
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in Xen 2.0) while Xen 3.0 uses ``xenbr0`` by default. See the
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`Initializing the cluster`_ section to learn how to choose a different
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bridge, or not to use one at all and use "routed mode".
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If you want to run in "routing mode" you need to specify that at cluster |
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init time (using the --nicparam option), and then no bridge will be |
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needed. In this mode instance traffic will be routed by dom0, instead of |
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bridged. |
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In order to use "routing mode" under Xen, you'll need to change the |
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In order to use "routed mode" under Xen, you'll need to change the |
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relevant parameters in the Xen config file. Under KVM instead, no config |
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change is necessary, but you still need to set up your network |
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interfaces correctly. |
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(master) node. |
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If you want to use a bridge which is not ``xen-br0``, or no bridge at |
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all, use ``--nicparams``. |
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all, change it with the ``--nic-parameters`` option. For example to |
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bridge on br0 you can say:: |
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--nic-parameters link=br0 |
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Or to not bridge at all, and use a separate routing table:: |
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--nic-parameters mode=routed,link=100 |
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If the bridge name you are using is not ``xen-br0``, use the *-b |
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<BRIDGENAME>* option to specify the bridge name. In this case, you |
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should also use the *--master-netdev <BRIDGENAME>* option with the same |
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BRIDGENAME argument. |
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If you don't have a xen-br0 interface you also have to specify a |
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different network interface which will get the cluster ip, on the master |
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node, by using the ``--master-netdev <device>`` option. |
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You can use a different name than ``xenvg`` for the volume group (but |
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note that the name must be identical on all nodes). In this case you |
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