You must have NetWare 6.5 running on each cluster server. Ensure that the following requirements are met:
If the servers in the cluster are in separate eDirectory containers, each server must have rights to the other server's containers and to the containers where any cluster enabled pool objects are stored. You can do this by adding trustee assignments for all cluster servers to a parent container of the containers where the cluster server objects reside. See eDirectory 8.7.3 Administration Guide for more information.
NSS is the only file system supported for Novell Cluster Services.