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You can disable the nova-node, so that the scheduler wont consider it for VM placement.

If you have any custom script, just check if the nova-node is enabled state.

The command is 'nova-manage service list'.

You may get output like Binary Host Zone Status State Updated_At nova-compute compute-01 zone1 enabled :-) 2014-12-06 13:04:43 nova-compute compute-02 zone1 disabled XXX 2014-12-05 21:10:12

You can disable the nova-node, so that the scheduler wont consider it for VM placement.

If you have any custom script, just check if the nova-node is enabled state.

The command is 'nova-manage service list'.

You may get output like

 Binary           Host                 Zone      Status     State  Updated_At
nova-compute     compute-01               zone1     enabled    :-)   2014-12-06 13:04:43
nova-compute     compute-02               zone1     disabled   XXX   2014-12-05 21:10:12

21:10:12