A weight advisor generates load-balancing weights, which are indicators of relative cluster member performance. You can choose to use a weight advisor to generate weights dynamically, based on performance information collected from cluster members, or you can use the static weights that are specified for individual cluster members.
A weight advisor gathers information and generates load-balancing weights for WebSphere Application Server clusters. To do this, a weight advisor repeatedly:
The metrics are provided by the Performance Monitoring Infrastructure (PMI), which must be enabled on each cluster member for which you want to use a weight advisor, and on the node agents on which that cluster member resides.
You can choose to use a weight advisor on one or more clusters by enabling one on the weight advisor page. By default, weight advisors are disabled.