As you upgrade a cluster to the next SP release version for the OES 11 software, you have a mixed-mode cluster made up of nodes running the old platform and the next SP platform. In addition to the Section 4.0, Planning for Novell Cluster Services, consider the following rules and recommendations for mixed clusters during an upgrade to the next SP release:
Mixed-mode clusters should be considered a temporary configuration that exists only during an upgrade.
Adding a new cluster node with the old version to a mixed-mode cluster is not supported.
NSS pool cluster resources can fail over to any node in the mixed-mode cluster.
LVM volume group cluster resources can fail over to any node in the mixed-mode cluster.
CSM cluster resources can fail over to any node in the mixed-mode cluster.
No storage management functions should be executed while a cluster is in mixed-mode unless you must do so as part of the documented upgrade process. Do not attempt to create, delete, expand, or modify the properties for partitions, pools, or volumes for any shared resources in the cluster.