1. In Dynamic Cluster Size, enter the initial number of dynamic server instances provisioned for this dynamic cluster.
2. In Max Dynamic Cluster Size, enter the maximum number of running dynamic server instances allowed for scale up operations in this dynamic cluster. This number is the sum of the Dynamic Cluster Size and the additional number of dynamic server instances allowed for scale up operations. If a scale up operation attempts to exceed this limit, the operation will not fail, but WebLogic Server will only add running dynamic server instances up to this limit.
3. In Min Dynamic Cluster Size, enter the minimum number of running dynamic server instances to keep in this dynamic cluster. During a scale down operation, attempts to scale down below this limit are not allowed.
4. In Dynamic Cluster Cool-off Period In Seconds, enter the cool-off period (in seconds). After a scale up or scale down operation is performed, subsequent requests for scale up or scale down operations will be ignored during this period.
5. In Dynamic Cluster Shutdown Timeout In Seconds, enter the timeout period (in seconds) to use while gracefully shutting down a dynamic server instance to allow inflight work to complete.
6. In Enable Ignore Sessions During Shutdown, select this checkbox to ignore inflight HTTP sessions while shutting down dynamic server instances during scale down activities.
7. In Enable Wait For All Sessions During Shutdown, select this checkbox to wait for all (persisted and non-persisted) inflight HTTP sessions while shutting down dynamic server instances during scale down operations.

Note: For more information, see "Configuring Dynamic Clusters" in Configuring Elasticity in Dynamic Clusters.