From owner-freebsd-stable@freebsd.org Mon Jan 15 09:40:53 2018 Return-Path: Delivered-To: freebsd-stable@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 011D7E6CAB5 for ; Mon, 15 Jan 2018 09:40:53 +0000 (UTC) (envelope-from eugen@grosbein.net) Received: from hz.grosbein.net (hz.grosbein.net [78.47.246.247]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "hz.grosbein.net", Issuer "hz.grosbein.net" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 89B0869502 for ; Mon, 15 Jan 2018 09:40:51 +0000 (UTC) (envelope-from eugen@grosbein.net) Received: from eg.sd.rdtc.ru (root@eg.sd.rdtc.ru [62.231.161.221] (may be forged)) by hz.grosbein.net (8.15.2/8.15.2) with ESMTPS id w0F9ehqk033319 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 15 Jan 2018 10:40:44 +0100 (CET) (envelope-from eugen@grosbein.net) X-Envelope-From: eugen@grosbein.net X-Envelope-To: marko.cupac@mimar.rs Received: from [10.58.0.4] ([10.58.0.4]) by eg.sd.rdtc.ru (8.15.2/8.15.2) with ESMTPS id w0F9eZDQ092153 (version=TLSv1.2 cipher=DHE-RSA-AES128-SHA bits=128 verify=NOT); Mon, 15 Jan 2018 16:40:35 +0700 (+07) (envelope-from eugen@grosbein.net) Subject: Re: troubleshooting before hard reset To: =?UTF-8?Q?Marko_Cupa=c4=87?= , freebsd-stable@freebsd.org References: <20180115103128.014f27f8@efreet-freebsd.kappastar.com> From: Eugene Grosbein Message-ID: <5A5C770F.4080806@grosbein.net> Date: Mon, 15 Jan 2018 16:40:31 +0700 User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.7.2 MIME-Version: 1.0 In-Reply-To: <20180115103128.014f27f8@efreet-freebsd.kappastar.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=2.2 required=5.0 tests=BAYES_00, LOCAL_FROM, RDNS_NONE autolearn=no autolearn_force=no version=3.4.1 X-Spam-Report: * -2.3 BAYES_00 BODY: Bayes spam probability is 0 to 1% * [score: 0.0000] * 2.6 LOCAL_FROM From my domains * 1.9 RDNS_NONE Delivered to internal network by a host with no rDNS X-Spam-Level: ** X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on hz.grosbein.net X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 15 Jan 2018 09:40:53 -0000 15.01.2018 16:31, Marko Cupać wrote: > Hi, > > one of my ageing servers, HP DL380g5, which is serving a bunch of > non-critical production jails on FreeBSD 11.1, bacame inaccessible over > weekend. I have physical access, its disks and NICs are showing > activity, but it doesn't send anything to monitor over VGA, also I > guess it doesn't recognise keyboard (num lock led does nothing). > > Before I hard reset it, is there anything I can do to troubleshoot the > problem? I tried serial port as well but it gives nothing on either > 9600 or 115200 baud. I guess OS needs to be configured beforehand for > serial access. Yes. If keyboard seems to be dead and there is no video output, I'm afraid you can't get anything useful from the box other than sniffing traffic from its MAC address, if any. And check MAC address table of network switch for server's MAC address if you have managed switch. Else, just reset it.