From owner-freebsd-questions@freebsd.org Wed Sep 21 09:25:02 2016 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 932F8BE2AE8 for ; Wed, 21 Sep 2016 09:25:02 +0000 (UTC) (envelope-from chiller@driftfun.com) Received: from mail-ext5.uio.no (mail-ext5.uio.no [IPv6:2001:700:100:10::31]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 54B5DF06 for ; Wed, 21 Sep 2016 09:25:02 +0000 (UTC) (envelope-from chiller@driftfun.com) Received: from mail-mx3.uio.no ([129.240.10.44]) by mail-out5.uio.no with esmtp (Exim 4.80.1) (envelope-from ) id 1bmdly-0006eg-Oa; Wed, 21 Sep 2016 11:24:58 +0200 Received: from putsch.kolbu.ws ([158.36.191.193]) by mail-mx3.uio.no with esmtps (TLSv1.2:DHE-RSA-AES256-GCM-SHA384:256) (Exim 4.80) (envelope-from ) id 1bmdly-00041J-Bg; Wed, 21 Sep 2016 11:24:58 +0200 Received: from chiller by putsch.kolbu.ws with local (Exim 4.87 (FreeBSD)) (envelope-from ) id 1bmdlx-0003YD-N8; Wed, 21 Sep 2016 11:24:57 +0200 Date: Wed, 21 Sep 2016 11:24:57 +0200 From: =?utf-8?B?U3TDpWxl?= Kristoffersen To: Anton Yuzhaninov Cc: "freebsd-questions@freebsd.org" Subject: Re: Server gets a high load, but no CPU use, and then later stops respond on the network Message-ID: <20160921092457.GA13386@putsch.kolbu.ws> References: <20160913232351.GA36091@putsch.kolbu.ws> <17ceb91f-b502-7517-7251-73b8399861d9@citrin.ru> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <17ceb91f-b502-7517-7251-73b8399861d9@citrin.ru> User-Agent: Mutt/1.6.1 (2016-04-27) X-UiO-Spam-info: not spam, SpamAssassin (score=-5.0, required=5.0, autolearn=disabled, UIO_MAIL_IS_INTERNAL=-5, uiobl=NO, uiouri=NO) X-UiO-Scanned: 4490F0D7A70D63E2B106645B411CF11800AD9A57 X-UiO-SPAM-Test: remote_host: 158.36.191.193 spam_score: -49 maxlevel 80 minaction 2 bait 0 mail/h: 1 total 34662 max/h 377 blacklist 0 greylist 0 ratelimit 0 X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 21 Sep 2016 09:25:02 -0000 On 2016-09-20 at 12:18, Anton Yuzhaninov wrote: > It worth to get working remote console first. > > With Supermicro server you usually have two options: > 1. IPMI Serial over LAN > 2. IP-KVM provided by BMC > > 1. IPMI SOL can be used from other BSD/Linux host using ipmitools > ipmitool .... sol activate > > IPMI SOL should be configured on both IPMI (via ipmitool) and server > (/boot/loader.conf, /etc/ttys). > > 2. IP-KVM can be accessed using Java application from BMC web interface > or using IPMIView: > ftp://ftp.supermicro.com/utility/IPMIView/Linux/ > > Which method do you use? I am using IP-KVM using the web interface. > Is keypress repeated always or only when server is overloaded? Only when the server is in the bad state. Normally everything is fine, and I have no problems using it. Maybe SOL will have a better chance of working when the server is in the bad state. I'll try to configure it and see what happens. > Anyway both methods should work, but has own issues: > > 1. Remote user for ipmitools can be activated only via web interface > (and NULL user can't be used). Default user ADMIN work via ipmitool too, > but I wanted to create separate users. > > 2. Java app from server's BMC web interface works only with some JRE > versions (long time ago it worked only with Sun/Oracle JDK and failed to > work with OpenJDK). IPMIView worked better for me (with less glitches) > than app from BMC web interface. I recommend to use IPMIView. Ok, I'll also try to get IPMIView working, and see if that changes anything > 3. It is more reliable and secure to use dedicated IPMI LAN port on server. I am using the dedicated LAN port, so that shouldn't be a problem. -- Ståle Kristoffersen