Taking the DB2 service group offline
Perform the following procedure from Cluster Manager (Java Console) to take the service group offline. Note that in the initial few cycles of taking a service group offline, the agent's memory usage can spike.
To take a service group offline
In the Cluster Explorer configuration tree with the Service Groups tab selected, right-click the service group that you want to take offline.
Choose , and select the appropriate system from the pop-up menu.