From owner-freebsd-stable@FreeBSD.ORG Fri Jan 29 00:43:40 2010 Return-Path: Delivered-To: freebsd-stable@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 5205E1065672 for ; Fri, 29 Jan 2010 00:43:40 +0000 (UTC) (envelope-from bsam@ipt.ru) Received: from services.ipt.ru (services.ipt.ru [194.62.233.110]) by mx1.freebsd.org (Postfix) with ESMTP id 0EE168FC1E for ; Fri, 29 Jan 2010 00:43:39 +0000 (UTC) Received: from [85.175.178.210] (helo=izar) by services.ipt.ru with esmtpa (Exim 4.54 (FreeBSD)) id 1NaexX-000EGd-07 for freebsd-stable@FreeBSD.org; Fri, 29 Jan 2010 03:43:39 +0300 From: Boris Samorodov To: freebsd-stable@FreeBSD.org References: Date: Fri, 29 Jan 2010 03:43:42 +0300 In-Reply-To: (Dan Naumov's message of "Tue, 26 Jan 2010 20:45:10 +0200") Message-ID: <51651473@ipt.ru> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1 (berkeley-unix) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Subject: Re: immense delayed write to file system (ZFS and UFS2), performance issues X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 29 Jan 2010 00:43:40 -0000 On Tue, 26 Jan 2010 20:45:10 +0200 Dan Naumov wrote: > This discussion made me have a look at my 2tb WD Green disks... So did I. Hm, it's a "nice" feature: ----- Model Family: Western Digital RE2-GP family Device Model: WDC WD1000FYPS-01ZKB0 Firmware Version: 02.01B01 User Capacity: 1 000 204 886 016 bytes ... 9 Power_On_Hours 0x0032 082 082 000 Old_age Always - 13206 193 Load_Cycle_Count 0x0032 001 001 000 Old_age Always - 1883216 ----- Seems I'm a winner with my nearly 2M cycles. :-( I use another script to stop that horror at five disks: ----- #!/bin/sh while true; do for i in `jot 5`; do sudo fdisk -p ada$i > /dev/null 2>&1 done sleep 5 done ----- -- WBR, Boris Samorodov (bsam) Research Engineer, http://www.ipt.ru Telephone & Internet SP FreeBSD Committer, http://www.FreeBSD.org The Power To Serve