During generation with KDCDEF, you have the option of creating reserve nodes with provisional values. You can subsequently use the administration facilities to change the host name and the base name of the KDCFILE of these node applications. The node application must not be active when this is done.
This option is particularly useful in the following situations:
You generate more nodes than you initially wish to operate as a reserve, for instance because insufficient computers are yet available.
At a subsequent time, you wish to add a node to an existing cluster because the number of nodes that were available to date is no longer sufficient. Now that you know the data of the new node, you can use the administration facilities to modify the configuration of a reserve node.
The hardware on which a node application is running is faulty or is to be replaced by more powerful hardware. To do this, proceed as follows:
Terminate the node application.
Transfer the UTM application data to the new computer.
Use the administration facilities in a running node application to change the computer name of the terminated node, i.e. enter the new name of the node instead of the old computer name here.
After you have made the change, you can start the node application on the new computer.
 | You will find detailed information on generating reserve nodes and on modifying the provisional properties using the administration facilities in the openUTM manual “Generating Applications” and the openUTM manual “Administering Applications”. |