From: Trond Myklebust <trond.myklebust@fys.uio.no>
Subject: Re: Question about performance...
Date: 31 Jan 2003 17:42:46 +0100
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To: "Matt Heaton" <admin@0catch.com>
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>>>>> " " =3D=3D Matt Heaton <admin@0catch.com> writes:

     > Hello all... I have 3 HUGE NFS servers (Each one with 2 -3
     > terabytes each), and 10 clients that pull a consistent 20-25
     > MBit total off of

     > the 3 NFS servers.=A0 Everything is running fine, but performance
     > isn't the greatest... I can never pull more than 1 Megabyte per
     > second off of any of the servers (Even though local performance
     > of drives on the servers is GREAT)...=A0 My question is this?=A0
     > How would switching everything to gigabit copper instead of 100
     > MBit lines help.=A0=A0 Obviously Gig is faster, but since I am not
     > even using the 100 MBit I am wondering?=A0 The latency should go
     > down because it transfers so much faster?=A0 Any ideas for me?=A0
     > Anyone do this themselves that can answer?

You should be getting 10Mbyte/sec on a switched 100Mbit line. I
suggest you try NFS over TCP rather than UDP (note that this requires
a fairly recent kernel -2.4.20 or above- on the server side).

Cheers,
  Trond


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