In addition to bug fixes, the May 2011 Scheduled Maintenance patches for OES 2 SP2 and OES 2 SP3 provide the following change for Novell Cluster Services:
If you attempt to online or migrate a cluster resource to a node that is not in its Assigned Nodes list, the resource stays offline or is not migrated. This change makes the command behavior consistent with the online and migrate options in the Cluster plug-in in iManager. The node that you specify must be running in the cluster and also be in the resource's Assigned Nodes list.
Previously, if the specified node was not a preferred node, the cluster online and cluster migrate commands brought the resource online on a node in its Assigned Nodes list.