nfswatch outputs all zeroes

From: ohnielse@fysik.dtu.dk
Date: Wed Nov 23 2005 - 17:34:31 EST

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We have an NFS overload situation of our Tru64 v5.1B server, and we
need to run the "nfswatch" utility to identify the misbehaving NFS
clients.

Unfortunately, "nfswatch --allif" shows almost exclusively zero
NFS traffic, although the server in reality is being killed by
NFS traffic (the disk subsystem does 800 SCSI transfers/sec).

Question: Does anyone which special tricks are required in order
to make "nfswatch" behave correctly (the way it does on other
UNIXes) ? I do have "options PACKETFILTER" defined in the kernel
config file.

Thanks a lot,

Dr. Ole H. Nielsen
Department of Physics, Technical University of Denmark

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