Nokia IPSO 4.0 Reference Manual page 235

performance rating to force a particular node to be the master (which will also have the effect of
giving that node a larger share of work).
To change the performance rating, enter a number in the Performance Rating field (the range of
values is 0 through 65535), then click Apply and Save.
If you change the master by adjusting the performance rating, or if the master changes because a
joining system has a higher rating than the other nodes, the settings of join-time shared features
are propagated across the cluster at that point. The settings on the new master are replicated on
the other nodes.
Note
Do not change the performance rating of the master to 0. This will cause the traffic load to be
distributed unequally across the cluster.
Note
After you click Apply, you might see a message that reads Joining in progress. If so, refresh
your browser. The message disappears and you can proceed by clicking click Apply and
then Save.
Managing Join-Time Shared Features
You can change the configuration settings of join-time shared features while logged in as a
system user (user with the role type System) or a cluster administrator, but the results are
different:
When you log in as a cluster administrator (and use Cluster Voyager or the CCLI) and
change a setting of a shared feature, the change is made on all the nodes.
For example, if static routes are shared and you add a static route while logged in as a cluster
administrator, the route is added to all the cluster nodes.
When you log in as a system user and change a configuration setting of cluster shareable
feature, the change is implemented on the node you are logged into but not implemented on
the other nodes. This is true even if you are logged into the master node.
For example, if static routes are shared and you add a static route while logged in as a system
user, the route is added to the node you are logged into but not the other cluster nodes.
Changes made as a cluster administrator overwrite any conflicting settings made by someone
logged into an individual cluster node as a system user. However, nonconflicting changes made
as a system user are not overwritten. For example, if you configure static routes on a node while
logged in as system user and later add static routes as a cluster administrator, the latter routes are
added to the list of routes on that node. The original routes are unchanged.
Nokia Network Voyager for IPSO 4.0 Reference Guide 235