From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from lists.gentoo.org (pigeon.gentoo.org [208.92.234.80]) by finch.gentoo.org (Postfix) with ESMTP id 63AAE1381F3 for ; Mon, 8 Jul 2013 16:00:20 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id A060BE0A72; Mon, 8 Jul 2013 16:00:11 +0000 (UTC) Received: from mail-wg0-f47.google.com (mail-wg0-f47.google.com [74.125.82.47]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by pigeon.gentoo.org (Postfix) with ESMTPS id 4FEA7E09B5 for ; Mon, 8 Jul 2013 16:00:09 +0000 (UTC) Received: by mail-wg0-f47.google.com with SMTP id l18so3908511wgh.14 for ; Mon, 08 Jul 2013 09:00:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=message-id:date:from:user-agent:mime-version:to:subject:references :in-reply-to:content-type:content-transfer-encoding; bh=yURJOUgDrQ7GhahpWCXiD/j2SnbLsgMzrk+UQgapu74=; b=pc/Sv3e4r8NJvmlKgp5XQdkqG4szWRPolSD99YSrhPnHDdUbYGSlerjE1davAsDLak +xL2zJqlC9APm5ODoQsofQF55lx7yeqGNG/LrNuODOjSHqWwAfUS1bgaHYr3tHZBudim Vu7GAn/QJPlwGB3DqhpTumHo6Ibj+zsxKDO/RZqEu5W10pt+V3GqckfEaI1DbE6wXQUS K1EYwAC7AcABOvhcPeHcX8vZMaCT7iLLS+rb9yGZW4IIgdLKWS64pb3TX3rE2+E34N8U w3ygXPdZHyBoWDpaXbfyj0ANEu4y9QX9aiVIE91mOXfX86L9SRDHwzi3ifiI9MdHorNC G+8g== X-Received: by 10.194.239.225 with SMTP id vv1mr12681586wjc.63.1373299208930; Mon, 08 Jul 2013 09:00:08 -0700 (PDT) Received: from [172.20.0.41] (196-210-126-90.dynamic.isadsl.co.za. [196.210.126.90]) by mx.google.com with ESMTPSA id fs8sm56043763wib.0.2013.07.08.09.00.06 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Mon, 08 Jul 2013 09:00:08 -0700 (PDT) Message-ID: <51DAE18C.2010804@gmail.com> Date: Mon, 08 Jul 2013 17:58:04 +0200 From: Alan McKinnon User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130701 Thunderbird/17.0.7 Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] hp H222 SAS controller References: <51D33059.5070508@xunil.at> <51D3D2D2.9020301@xunil.at> <51D53EA6.6050004@xunil.at> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Archives-Salt: d60cf34c-1291-4944-bfaa-048abfe916dd X-Archives-Hash: 1c1eb76d2e52d68a1cdb9d4b9215db20 On 08/07/2013 17:39, Paul Hartman wrote: > On Thu, Jul 4, 2013 at 9:04 PM, Paul Hartman > wrote: >> ST4000DM000 > > As a side-note these two Seagate 4TB "Desktop" edition drives I bought > already, after about than 100 hours of power-on usage, both drives > have each encountered dozens of unreadable sectors so far. I was able > to correct them (force reallocation) using hdparm... So it should be > "fixed", and I'm reading that this is "normal" with newer drives and > "don't worry about it", but I'm still coming from the time when 1 bad > sector = red alert, replace the drive ASAP. I guess I will need to > monitor and see if it gets worse. > Way back when in the bad old days of drives measured in 100s of megs, you'd get a few bad sectors now and then, and would have to mark them as faulty. This didn't bother us then much Nowadays we have drives that are 8,000 bigger than that so all other things being equal we'd expect sectors to fail 8,000 time more (more being a very fuzzy concept, and I know full well I'm using it loosely :-) ) Our drives nowadays also have smart firmware, something we had to introduce when CHS no longer cut it, this lead to sector failures being somewhat "invisible" leaving us with the happy delusion that drives were vastly reliable etc etc etc. But you know all this. A mere few dozen failures in the first 100 hours is a failure rate of (Alan whips out the trust sci calculator) 4.8E-6%. Pretty damn spectacular if you ask me and WELL within probabilities. There is likely nothing wrong with your drives. If they are faulty, it's highly likely a systemic manufacturing fault of the mechanicals (servo systems, motor bearing etc) You do realize that modern hard drives have for the longest time been up there in the Top X list of Most Reliable Devices Made By Mankind Ever? -- Alan McKinnon alan.mckinnon@gmail.com