Updating the instance
To ensure that your site remains available during a fix pack upgrade, you must manually control the servers statuses and node agents in your cluster to synchronize all nodes in the cluster.
About this task
If you are on Feature Pack 7 or later, fix pack upgrades change some JAR files that are shared between the WebSphere Commerce application and the WebSphere Commerce search application. Select one of the following tasks to complete based on your Feature Pack level.