From owner-freebsd-stable@FreeBSD.ORG Thu Nov 12 12:25:31 2009 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 9EEBB1065695 for ; Thu, 12 Nov 2009 12:25:31 +0000 (UTC) (envelope-from freebsd-stable@m.gmane.org) Received: from lo.gmane.org (lo.gmane.org [80.91.229.12]) by mx1.freebsd.org (Postfix) with ESMTP id 2F2F38FC13 for ; Thu, 12 Nov 2009 12:25:31 +0000 (UTC) Received: from list by lo.gmane.org with local (Exim 4.50) id 1N8Yjx-00018S-2i for freebsd-stable@freebsd.org; Thu, 12 Nov 2009 13:25:29 +0100 Received: from lara.cc.fer.hr ([161.53.72.113]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 12 Nov 2009 13:25:29 +0100 Received: from ivoras by lara.cc.fer.hr with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 12 Nov 2009 13:25:29 +0100 X-Injected-Via-Gmane: http://gmane.org/ To: freebsd-stable@freebsd.org From: Ivan Voras Date: Thu, 12 Nov 2009 13:25:12 +0100 Lines: 55 Message-ID: References: <20091112103308.GA2536@hiMolde.no> <20091112115350.GA18542@icarus.home.lan> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: lara.cc.fer.hr User-Agent: Thunderbird 2.0.0.23 (X11/20090928) In-Reply-To: <20091112115350.GA18542@icarus.home.lan> Sender: news Subject: SMART 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: Thu, 12 Nov 2009 12:25:31 -0000 Jeremy Chadwick wrote: > I can teach you how to decode/read SMART statistics correctly. > Actually, it would be good if you taught more than him :) I've always wondered how important are each of the dozen or so statistics and what indicates what... Here is for example my desktop drive: SMART Attributes Data Structure revision number: 10 Vendor Specific SMART Attributes with Thresholds: ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE 1 Raw_Read_Error_Rate 0x000f 087 083 006 Pre-fail Always - 45398197 3 Spin_Up_Time 0x0003 096 093 000 Pre-fail Always - 0 4 Start_Stop_Count 0x0032 100 100 020 Old_age Always - 64 5 Reallocated_Sector_Ct 0x0033 100 100 036 Pre-fail Always - 0 7 Seek_Error_Rate 0x000f 084 060 030 Pre-fail Always - 247407473 9 Power_On_Hours 0x0032 089 089 000 Old_age Always - 10155 10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail Always - 0 12 Power_Cycle_Count 0x0032 100 100 020 Old_age Always - 64 187 Reported_Uncorrect 0x0032 100 100 000 Old_age Always - 0 189 High_Fly_Writes 0x003a 100 100 000 Old_age Always - 0 190 Airflow_Temperature_Cel 0x0022 058 055 045 Old_age Always - 42 (Lifetime Min/Max 37/44) 194 Temperature_Celsius 0x0022 042 045 000 Old_age Always - 42 (0 20 0 0) 195 Hardware_ECC_Recovered 0x001a 062 059 000 Old_age Always - 45398197 197 Current_Pending_Sector 0x0012 100 100 000 Old_age Always - 0 198 Offline_Uncorrectable 0x0010 100 100 000 Old_age Offline - 0 199 UDMA_CRC_Error_Count 0x003e 200 200 000 Old_age Always - 0 200 Multi_Zone_Error_Rate 0x0000 100 253 000 Old_age Offline - 0 202 TA_Increase_Count 0x0032 100 253 000 Old_age Always - 0 I see many values exceeding threshold but since I see it so often on other drives I don't know what the threshold is for.