Limitations of Highly Available NFS

File locks are not maintained when an NFS server package moves to a new node. Any applications that use file locking must reclaim their locks after an NFS server package fails over. An application that loses its file lock as a result of an NFS package failover will not be notified. If the server is also an NFS client, any file locks it holds will be lost.

The Highly Available NFS tool kit available on HP-UX release 10.10 may be used only on release 10.10 or later.

You cannot use Highly Available NFS for an NFS diskless cluster server.

You can use Highly Available NFS only in an MC/ServiceGuard cluster with 4 nodes or fewer.