Novell Doc: NW 6.5 SP8: AFP, CIFS, and NFS (NFAP) Administration Guide

7.3 Prerequisites

Before you start using Native File Access for UNIX, meet the following prerequisites for proper functionality.

DNS is correctly configured.
Novell eDirectory 8.0 or later is installed.

This is required because NFS Server uses auxiliary classes. NFS Server does not load on a server in tree with NetWare 5.1 NDS 7 replica ring. For correct and complete functionality, the entire replica ring for all partitions specified in the NFS search_root, contexts must be on eDirectory 8.0 or later.