From owner-freebsd-stable@FreeBSD.ORG Tue Jan 19 09:29:02 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 2294B106566B for ; Tue, 19 Jan 2010 09:29:02 +0000 (UTC) (envelope-from freebsd-questions@pp.dyndns.biz) Received: from proxy3.bredband.net (proxy3.bredband.net [195.54.101.73]) by mx1.freebsd.org (Postfix) with ESMTP id CB0EE8FC1A for ; Tue, 19 Jan 2010 09:29:01 +0000 (UTC) Received: from ipb1.telenor.se (195.54.127.164) by proxy3.bredband.net (7.3.140.3) id 4AD3E1BA026778CC for freebsd-stable@freebsd.org; Tue, 19 Jan 2010 10:29:00 +0100 X-SMTPAUTH-B2: X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Ar86AKIKVUtV4js3PGdsb2JhbACBRoZwkzwBAQEBN7lvhDME X-IronPort-AV: E=Sophos;i="4.49,302,1262559600"; d="scan'208";a="27627115" Received: from c-373be255.107-1-64736c10.cust.bredbandsbolaget.se (HELO gatekeeper.pp.dyndns.biz) ([85.226.59.55]) by ipb1.telenor.se with ESMTP; 19 Jan 2010 10:29:00 +0100 Received: from [192.168.69.67] (phobos [192.168.69.67]) by gatekeeper.pp.dyndns.biz (8.14.3/8.14.3) with ESMTP id o0J9Swlu036158; Tue, 19 Jan 2010 10:28:58 +0100 (CET) (envelope-from freebsd-questions@pp.dyndns.biz) Message-ID: <4B557B5A.8040902@pp.dyndns.biz> Date: Tue, 19 Jan 2010 10:28:58 +0100 From: =?ISO-8859-1?Q?Morgan_Wesstr=F6m?= User-Agent: Thunderbird 2.0.0.23 (X11/20091010) MIME-Version: 1.0 To: Garrett Moore References: <4B54C100.9080906@mail.zedat.fu-berlin.de> <4B54C5EE.5070305@pp.dyndns.biz> <201001191250.23625.doconnor@gsoft.com.au> <7346c5c61001181841j3653a7c3m32bc033c8c146a92@mail.gmail.com> In-Reply-To: <7346c5c61001181841j3653a7c3m32bc033c8c146a92@mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: "O. Hartmann" , freebsd-stable@freebsd.org 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: Tue, 19 Jan 2010 09:29:02 -0000 Garrett Moore wrote: > The drives being discussed in my related thread (regarding poor performance) > are all WD Green drives. I have used wdidle3 to set all of my drive timeouts > to 5 minutes. I'll see what sort of difference this makes for performance. > > Even if it makes no difference to performance, thank you for pointing it out > -- my drives have less than 2,000 hours on them and were all over 90,000 > load cycles due to this moronic factory setting. Since changing the timeout, > they haven't parked (which is what I would expect). > You're welcome. I just feel as bad for you as for everyone else who has bought these obviously Windoze optimized harddrives. Unfortunately neither wdidle3 nor an updated firmware is available or functioning on the latest models in the Green series. At least that's what I've read from other people having this issue. WD only claims they don't support Linux and they probably have never heard of FreeBSD. If anyone successfully has fixed their WD15EADS drives this way I'd be interested in hearing from you. One of my drives has 216,000 load cycles accumulated over 8 months. That's one every 2nd minute... and I was hit by the Seagate 7200.11 fiasco too. Running on Samsungs now :-)