From owner-freebsd-questions@freebsd.org Sun Sep 17 21:13:49 2017 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 D7560E05B1C for ; Sun, 17 Sep 2017 21:13:49 +0000 (UTC) (envelope-from freebsd@edvax.de) Received: from mailrelay11.qsc.de (mailrelay11.qsc.de [212.99.187.252]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "*.antispameurope.com", Issuer "TeleSec ServerPass DE-2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4A36E6E707 for ; Sun, 17 Sep 2017 21:13:49 +0000 (UTC) (envelope-from freebsd@edvax.de) Received: from mx01.qsc.de ([213.148.129.14]) by mailrelay11.qsc.de; Sun, 17 Sep 2017 23:13:46 +0200 Received: from r56.edvax.de (port-92-195-1-252.dynamic.qsc.de [92.195.1.252]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx01.qsc.de (Postfix) with ESMTPS id 490FA3CBF9; Sun, 17 Sep 2017 23:13:45 +0200 (CEST) Received: from r56.edvax.de (localhost [127.0.0.1]) by r56.edvax.de (8.14.5/8.14.5) with SMTP id v8HLDiZ4002354; Sun, 17 Sep 2017 23:13:44 +0200 (CEST) (envelope-from freebsd@edvax.de) Date: Sun, 17 Sep 2017 23:13:44 +0200 From: Polytropon To: Ralf Mardorf Cc: Ralf Mardorf via freebsd-questions Subject: Re: Disk not spinning up Message-Id: <20170917231344.54cf0fd4.freebsd@edvax.de> In-Reply-To: <20170917230229.378686f0@archlinux.localdomain> References: <20170917214321.8fd2157b.freebsd@edvax.de> <20170917225042.abab307c.freebsd@edvax.de> <20170917230229.378686f0@archlinux.localdomain> Reply-To: Polytropon Organization: EDVAX X-Mailer: Sylpheed 3.1.1 (GTK+ 2.24.5; i386-portbld-freebsd8.2) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-cloud-security-sender: freebsd@edvax.de X-cloud-security-recipient: freebsd-questions@freebsd.org X-cloud-security-Virusscan: CLEAN X-cloud-security-disclaimer: This E-Mail was scanned by E-Mailservice on mailrelay11.qsc.de with B3B846A357E X-cloud-security-connect: mx01.qsc.de[213.148.129.14], TLS=1, IP=213.148.129.14 X-cloud-security: scantime:.1538 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: Sun, 17 Sep 2017 21:13:49 -0000 On Sun, 17 Sep 2017 23:02:29 +0200, Ralf Mardorf via freebsd-questions wrote: > On Sun, 17 Sep 2017 22:50:42 +0200, Polytropon wrote: > >> The best approach is to per-warn up the drive hardware before trying > >> to power it on. Put a bear light bulb or shine a flood light from a > >> close distance on to the metal covered side, IE; not the circuit > >> board side, until it gets almost to hot to touch. Then power it on > >> and and away you go almost every time this happens. > > > >I will definitely add this as even more help. > > Usually it's worn out hardware from too many spin downs and spin ups. I > doubt that aged lubricants are the cause. Further impressions: I tried with the "little hammer", but after the 1/4th rotation cycles, the disk loght on the controller board starts flashing. As I read about deconnecting the "flat wires in plastics" (flex) to the head and powerin the disk on with heads disconnected, the disk did the same. So I tought I'd examine how the spindle motor is powered up. I found a connector with 4 pins on the rear side of the controller, a connector which I don't exactly know the correct term for: It's a soft rubber block with kinds of wires on it, held in place with mechanical pressure from the surrounding screws. Okay, I put the controller back, softly attached with one screw only, and thought I'd power it on. AND BEHOLD THE WONDER OF STRANGENESS - the disk started spinning! A "Vrooooommmmm!" sound could be heared. I don't know why I powered it off at that time - probably because the controller wasn't actually fixed, and I didn't want to connect the "forensics adapter" (40-pin side) to a shaky circuit board. After fixating the controller again, the disk started its stupid "I won't spin up, I just turn around a few times, then start flashing a green light" dance. So my assumption is: Maybe the power connector for the spindle motor is "a little bit" flaky? It's probably worth investigating that particular connection closer, and play with the screws... that's almost engineering! Turn screws, turn nuts - Schrauben drehn, Muddern drehn. :-) -- Polytropon Magdeburg, Germany Happy FreeBSD user since 4.0 Andra moi ennepe, Mousa, ...