You should stop Novell Cluster Services when applying maintenance patches for Novell Cluster Services.
Log in to the node as the root user, then open a terminal console.
Use the cluster leave command to remove the node from the cluster.
Stop Novell Cluster Services by entering
rcnovell-ncs stop
Apply the OES 2 Linux or Novell Cluster Services patches.
Start Novell Cluster Services by entering
rcnovell-ncs start
Use the cluster join command to rejoin the node to the cluster.