Considerations When Upgrading NFS Server Nodes to StorNext 5
Due to the fact that the full 64-bit inode numbers are exposed to Linux after Linux clients are upgraded to StorNext 5, special consideration must be made for Linux NFS servers.
To prevent issues with mounted NFS clients, NFS clients must be unmounted prior to upgrading StorNext on the NFS server. If unmounting all NFS clients is not an option during the upgrade, Quantum suggests using the "compat32" mount option on NFS servers.