From owner-freebsd-questions@FreeBSD.ORG  Thu Dec  1 21:09:12 2005
Return-Path: <owner-freebsd-questions@FreeBSD.ORG>
X-Original-To: freebsd-questions@freebsd.org
Delivered-To: freebsd-questions@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 0CED916A41F
	for <freebsd-questions@freebsd.org>;
	Thu,  1 Dec 2005 21:09:12 +0000 (GMT)
	(envelope-from freminlins@gmail.com)
Received: from nproxy.gmail.com (nproxy.gmail.com [64.233.182.192])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 4C7F943D68
	for <freebsd-questions@freebsd.org>;
	Thu,  1 Dec 2005 21:09:08 +0000 (GMT)
	(envelope-from freminlins@gmail.com)
Received: by nproxy.gmail.com with SMTP id k26so126545nfc
	for <freebsd-questions@freebsd.org>;
	Thu, 01 Dec 2005 13:09:07 -0800 (PST)
DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com;
	h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:references;
	b=ucUkvrYmGvb7pKzQBgmHyP2XCi6xw3ZKTcV5kJuHY5VfK6ntB2ZwvscoNuz59Lzn/78Y6gPwVRJuoWA68XgMAbINKds2T6WkCV86VminC6MiWs8Li0URIUhvEWYhP4bxlHIgHveWLN+sX3Trbvq72M99Om0F/IDYOSfoTL3RZU4=
Received: by 10.49.42.5 with SMTP id u5mr404468nfj;
	Thu, 01 Dec 2005 13:09:06 -0800 (PST)
Received: by 10.48.235.2 with HTTP; Thu, 1 Dec 2005 13:09:06 -0800 (PST)
Message-ID: <eeef1a4c0512011309ke3feff0rb609131dd2dd0742@mail.gmail.com>
Date: Thu, 1 Dec 2005 21:09:06 +0000
From: Freminlins <freminlins@gmail.com>
To: "N.J. Thomas" <njt@ayvali.org>
In-Reply-To: <20051201193813.GG15171@ayvali.org>
MIME-Version: 1.0
References: <20051201193813.GG15171@ayvali.org>
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable
Content-Disposition: inline
X-Content-Filtered-By: Mailman/MimeDel 2.1.5
Cc: freebsd-questions@freebsd.org
Subject: Re: overloaded webserver: nfs wait issue?
X-BeenThere: freebsd-questions@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: User questions <freebsd-questions.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
	<mailto:freebsd-questions-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-questions>
List-Post: <mailto:freebsd-questions@freebsd.org>
List-Help: <mailto:freebsd-questions-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
	<mailto:freebsd-questions-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 01 Dec 2005 21:09:12 -0000

Can you provide the output of nfsstat -c 1 on the web servers (and nfsstat
-s 1 on the nfs server if they are running FreeBSD)? Run them for a minute
when you are getting bad performance.

Please also quantify "moderately high traffic". What is this in Mbit/s?
Also, it may be helpful to know a little bit about your network
infrastructure, i.e. are the switch ports set to full duplex and the
machines to match. NFS performance is very dependent on a fast reliable
network. Don't consider anything less than 100Mbit/s full duplex. Also what
platform is the NFS server?

We recently migrated from a cluster pair of NetApps to a single NFS server
running FreeBSD. This is mounted by four NFS clients running Zeus. We have =
a
lot of NFS experience and we felt confident this would work. It did and wit=
h
the most marginal degradation in performance.

Frem.