To take a service group offline, follow these steps:
Click a cluster in the configuration tree, click the Service Groups tab, and right-click the service group icon in the view panel.
To take a service group offline from the Cluster Explorer toolbar
Click the service group.
For global groups, select the cluster in which to take the group offline.
Click the system on which to take the group offline, or click All Systems.
Click Show Command in the bottom left corner if you want to view the command associated with the service group. Click Hide Command to close the view of the command.
Click Take service group offline in the Command Center toolbar.