From owner-freebsd-stable@FreeBSD.ORG Tue Mar 29 20:55:29 2011 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 9CACE106566C for ; Tue, 29 Mar 2011 20:55:29 +0000 (UTC) (envelope-from jdc@koitsu.dyndns.org) Received: from qmta14.emeryville.ca.mail.comcast.net (qmta14.emeryville.ca.mail.comcast.net [76.96.27.212]) by mx1.freebsd.org (Postfix) with ESMTP id 7D97D8FC1A for ; Tue, 29 Mar 2011 20:55:29 +0000 (UTC) Received: from omta18.emeryville.ca.mail.comcast.net ([76.96.30.74]) by qmta14.emeryville.ca.mail.comcast.net with comcast id R8uM1g0051bwxycAE8vVRf; Tue, 29 Mar 2011 20:55:29 +0000 Received: from koitsu.dyndns.org ([67.180.84.87]) by omta18.emeryville.ca.mail.comcast.net with comcast id R8vT1g00N1t3BNj8e8vT2p; Tue, 29 Mar 2011 20:55:28 +0000 Received: by icarus.home.lan (Postfix, from userid 1000) id 539C59B422; Tue, 29 Mar 2011 13:55:27 -0700 (PDT) Date: Tue, 29 Mar 2011 13:55:27 -0700 From: Jeremy Chadwick To: Claus Guttesen Message-ID: <20110329205527.GA77676@icarus.home.lan> References: <113777190.2282503.1301350571721.JavaMail.root@erie.cs.uoguelph.ca> <20110329155149.167768mu74in1ios@webmail.leidinger.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) Cc: Alexander Leidinger , Rick Macklem , FreeBSD Stable Subject: Re: zfs, nfs and zil X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 29 Mar 2011 20:55:29 -0000 On Tue, Mar 29, 2011 at 09:37:34PM +0200, Claus Guttesen wrote: > >> All ip-activitiy, dns, ssh etc. on the interface (ip-address) that is > >> mounted. So whenever I test I log in to the server using the other > >> ip-address and whenever it stops responding to ping or my screen > >> session stops I reload the interfaces and the traffic resumes. > > > > Are the two NICs the same brand/driver/board? If not, could you try to > > switch the networks on them and test if the problem persists? It would also > > be nice if you could tell which driver/chip the NIC with the problem is. > > It's a supermicro server with dual igb-nics on the mainboard. I did > try other cables and other ports on the switch (hp procurve). I don't > have access to the server atm. but I'll get the chip-info in a day or > two. Both ip-addresses are on same subnet. > > Speed is autonegotiated to 1 GB full duplex on server and switch. No > errors detected using netstat or on switch. Something tells me (gut feeling) the virtualisation part is probably somehow responsible for the problem, quote: > I'm mounting the FreeBSD-server from a couple of vmware esxi 4.1 > servers using nfs, but when there is alot of i/o the server becomes > unresponsive, easily triggered by installing ie. ms-sql. The server > itself is up but is not reachable from the network. When I take the > nic down and up again connection to the network is reestablished > (ip-wise). Can you remove ESXi from the picture and see if the problem continues? If it does, we should probably pull Jack Vogel into the discussion, as Supermicro predominantly uses Intel-based NICs. He'll need output from "pciconf -lvcb" and "dmesg" to assist. But before pulling him in, please see if you can remove ESXi from the picture. -- | Jeremy Chadwick jdc@parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP 4BD6C0CB |