[Beowulf] upgrade from NFS3 to NFS4

[Henning Fehrmann]

Hi everybody,

we have to think about moving from NFS3 to NFS4 in our Linux operated cluster with 1342 nodes.
The current kernel is the 2.6.25-9. We are using a Debian Etch
installation.
I know there have been problems with NFS4 in a Linux kernel which I can not
recall right now. Do you know any objections - telling why it is probably a bad
idea to use NFS4 in our environment? 

Thank you, 
Henning Fehrmann