From owner-freebsd-performance@FreeBSD.ORG Mon May 25 02:31:14 2015 Return-Path: Delivered-To: freebsd-performance@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 94D6ACCC for ; Mon, 25 May 2015 02:31:14 +0000 (UTC) (envelope-from julian@freebsd.org) Received: from vps1.elischer.org (vps1.elischer.org [204.109.63.16]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "vps1.elischer.org", Issuer "CA Cert Signing Authority" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 6C307D27 for ; Mon, 25 May 2015 02:31:14 +0000 (UTC) (envelope-from julian@freebsd.org) Received: from jre-mbp.elischer.org (ppp121-45-225-35.lns20.per1.internode.on.net [121.45.225.35]) (authenticated bits=0) by vps1.elischer.org (8.14.9/8.14.9) with ESMTP id t4P2V5x3059224 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO); Sun, 24 May 2015 19:31:08 -0700 (PDT) (envelope-from julian@freebsd.org) Message-ID: <55628963.9080805@freebsd.org> Date: Mon, 25 May 2015 10:30:59 +0800 From: Julian Elischer User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:31.0) Gecko/20100101 Thunderbird/31.7.0 MIME-Version: 1.0 To: Cs , freebsd-performance@freebsd.org Subject: Re: FreeBSD 10.1-REL - network unaccessible after high traffic References: <5561EA73.20005@field.hu> In-Reply-To: <5561EA73.20005@field.hu> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 25 May 2015 02:31:14 -0000 On 5/24/15 11:12 PM, Cs wrote: > Hi all, > > I have two FreeBSd 10.1-RELEASE servers connected to each other. > They were connected via cross link, but they are connected to a > cisco switch now. When transferring huge files (50-500GB backup > files) via Gigabit (it is important!) the network randomly dies. The > backup runs every day/week and sometimes the connection is ok for > months sometimes it happens twice a week. When the network dies I > can log in to the server via IPMI and use the console everything is > OK, but can't send anything out on the network. ifconfig em0 down/up > doesn't help nor netif restart. The problem never occured when I > used 100Mbit connection between them, but it was 3com NIC (xl), > gigabit adapter is Intel (em0). When I limit the transfer rate > (rsync bandwith limit or ipfw pipe) the problem is much more rare. did you have the problem with no switch? is he duplex setting correct? > > I tried to set these tuning parameters on both servers with > different buffer size but nothing helped: > > # cat /etc/sysctl.conf > security.bsd.see_other_uids=0 > net.inet.tcp.recvspace=512000 > net.route.netisr_maxqlen=2048 > kern.ipc.nmbclusters=1310720 > net.inet.tcp.sendbuf_max=16777216 > net.inet.tcp.recvbuf_max=16777216 > kern.ipc.soacceptqueue=32768 > > # cat /boot/loader.conf > geom_mirror_load="YES" # RAID1 disk driver (see gmirror(8)) > ipfw_load="YES" > net.inet.ip.fw.default_to_accept=1 > kern.maxusers=4096 > accf_data_load="YES" > > Any ideas? Thanks guys! > _______________________________________________ > freebsd-performance@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-performance > To unsubscribe, send any mail to > "freebsd-performance-unsubscribe@freebsd.org" >