From owner-freebsd-hackers@FreeBSD.ORG Thu Mar 5 14:43:33 2009 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 8F286106564A for ; Thu, 5 Mar 2009 14:43:33 +0000 (UTC) (envelope-from octavian.covalschi@gmail.com) Received: from wf-out-1314.google.com (wf-out-1314.google.com [209.85.200.173]) by mx1.freebsd.org (Postfix) with ESMTP id 60C6B8FC16 for ; Thu, 5 Mar 2009 14:43:33 +0000 (UTC) (envelope-from octavian.covalschi@gmail.com) Received: by wf-out-1314.google.com with SMTP id 27so4001308wfd.7 for ; Thu, 05 Mar 2009 06:43:32 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:content-type; bh=0481YVRBan/2/V3LK+fFPEQ1kB9X1hfxSiKaLYZNYIA=; b=xqDR/2IpI6+ENAWtHtrfHrqhL1h5+5OzNehyV+pDbZE2YeiUzq7+lmWrPOVWQkgedU m1lnkzIekU+rqECmSn3+WXsqEBFjlVYBBpUsb3wbVAx0O5pquvHcFhwQbnB9kWbWKcpE BmE2EXCDLaCPzULNT1F1LYVqC77riorwIubJo= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; b=Kv/5oa/5qDPlxpjz3ey1l7D5VB0NdasYimruhXH/k8jR/nDa2H2kkcTrJ3ChDCEOIF 03kP8WhrcPzyKaswj/DqrGAYpeDfe+TA7Y+EuIzFTlb2L0pNNMqFfC6TfiUzS5IGWkF0 pBD7YPaPW4rkNBipLF28vxcypvNAq7LaB1C1w= MIME-Version: 1.0 Received: by 10.142.162.9 with SMTP id k9mr551654wfe.282.1236264212804; Thu, 05 Mar 2009 06:43:32 -0800 (PST) In-Reply-To: <20090305142517.GA2773@britannica.bec.de> References: <20090304195614.GA179@britannica.bec.de> <200903050758.n257wod8088426@lurza.secnetix.de> <20090305142517.GA2773@britannica.bec.de> Date: Thu, 5 Mar 2009 08:43:32 -0600 Message-ID: From: Octavian Covalschi To: freebsd-hackers@freebsd.org Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Subject: Re: Spin down HDD after disk sync or before power off X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 05 Mar 2009 14:43:33 -0000 I think just HDD parking won't harm HDD, as my prev HDD was autoparking constantly (safe or powersave reasons). However in my case, I can hear a sound that is made by a vibration, it's like plates are slowing down and something is vibrating (arm?). It's kind the same with desktop PC, when your power is cut and your HDD are stopped too sudden. Thanks. On Thu, Mar 5, 2009 at 8:25 AM, Joerg Sonnenberger wrote: > On Thu, Mar 05, 2009 at 08:58:50AM +0100, Oliver Fromme wrote: > > > This is not true. Many hard disks don't like having to do an emergency > > > shutdown as it affects the disk life time negatively. That's what > > > happens if you poweroff the machine when the disks are still spinning. > > > > Can you point to any authoritative information (URL) about > > that claim, such as vendor specs, white paper or similar? > > Not without digging. NetBSD PR 21531 had a reference, but that is dead > nowadays. > > Joerg > _______________________________________________ > freebsd-hackers@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-hackers > To unsubscribe, send any mail to "freebsd-hackers-unsubscribe@freebsd.org" >