You can use a shared NSS data pool and volume in a mixed cluster configuration by using Novell Cluster Services for Linux if all nodes in the cluster support the same NSS media format.
For information about upgrading to the latest media format, see Section 4.1, Guidelines for Upgrading the Media Format of NSS Volumes.
For information, see the OES 2 SP2: Novell Cluster Services 1.8.7 for Linux Administration Guide.