Since the NFS v4 provider has been integrated into Solaris, we will be removing the very out-of-date nfs v4 provider community which had been available here: http://opensolaris.org/os/project/nfs4trace/ The provider has been generally available since February of last year; you can find the documentation on the DTrace wiki here: http://wikis.sun.com/display/DTrace/nfsv4+Provider Adam -- Adam Leventhal, Fishworks http://blogs.sun.com/ahl