From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1NeDPG-0005Qz-HV for garchives@archives.gentoo.org; Sun, 07 Feb 2010 20:06:58 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id B05C9E0C53 for ; Sun, 7 Feb 2010 20:06:57 +0000 (UTC) Received: from mail-pz0-f199.google.com (mail-pz0-f199.google.com [209.85.222.199]) by pigeon.gentoo.org (Postfix) with ESMTP id 9C9F3E09DD for ; Sun, 7 Feb 2010 19:26:00 +0000 (UTC) Received: by pzk37 with SMTP id 37so3437193pzk.10 for ; Sun, 07 Feb 2010 11:26:00 -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 :content-transfer-encoding; bh=QPQnIQDB7t4GIHiONVLS7TliEk/gSV2NNXOACZuMm50=; b=CW6nrQVigAoGNpUKsY7FkRf1TDDfFFqnVNuby2X3NVH0yak9QRUdxA4glQB7NB31IL Y/+Y+0bVDU3F6kChLeuNpNlAxUkb4cDhy/BIUbxEocLWpnsbDB+S7YTmkSRQXfhcb+tL bCcEu+PQT9ofD+yUV1aYPe2UgFh5yU+yVBUps= 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:content-transfer-encoding; b=DXJSaog75c08ilnuUEqzGn1i51jQwYZxQnpUwFJMZZ1JWf87zyfqAiwNTN1x1qcti+ Wkr2cjky/5AVi3DTO5E8nP0fkUoB6S6iqzoZcNKS9Lm9MLRP9Ym7yb3gc+xjETe6Ybal wn8wvI7kEjllspn1RPdtYgybltGeeuCfKtGR4= 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 Received: by 10.142.4.13 with SMTP id 13mr3633754wfd.65.1265570760120; Sun, 07 Feb 2010 11:26:00 -0800 (PST) In-Reply-To: <201002071919.38799.volkerarmin@googlemail.com> References: <5bdc1c8b1002070827i14f59047k39a695900ebe9889@mail.gmail.com> <201002072030.43425.b3nder@yandex.ru> <201002071919.38799.volkerarmin@googlemail.com> Date: Sun, 7 Feb 2010 11:26:00 -0800 Message-ID: <5bdc1c8b1002071126l3a7fc5dfj207235a4088e39e0@mail.gmail.com> Subject: Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far From: Mark Knecht To: gentoo-user@lists.gentoo.org Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Archives-Salt: af4607f8-ff6c-4206-a2b3-c88fc7b5b60f X-Archives-Hash: f2d4f496d292dc26472facf427a73de7 On Sun, Feb 7, 2010 at 10:19 AM, Volker Armin Hemmann wrote: > On Sonntag 07 Februar 2010, Alexander wrote: >> On Sunday 07 February 2010 19:27:46 Mark Knecht wrote: >> > =C2=A0 =C2=A0Every time there is an apparent delay I just see the hard= drive >> > >> > light turned on solid. That said as far as I know if I wait for things >> > to complete the data is there but I haven't tested it extensively. >> > >> > =C2=A0 =C2=A0Is this a bad drive or am I somehow using it incorrectly? >> >> Is there any related info in dmesg? > > or maybe there is too much cached and seeking is not the drives strong po= int > ... It's an interesting question. There is new physical seeking technology in this line of drives which is intended to reduce power and noise, but it seem unlikely to me that WD would purposely make a drive that's 10-20x slower than previous generations. Could be though... Are there any user space Linux tools that can test that? The other thing I checked out was that when the block size is not specified it seems that mke2fs uses the default values from /etc/mke2fs.conf and my file says blocksize =3D 4096 so it would seem to me that if all partitions use blocks then at least the partitions would be properly aligned. My question about that would be when I write a 1 byte file to this drive do I use all 4K of the block it's written in? It's wasteful, but faster, right? I want files to be block-aligned so that the drive isn't doing lots of translation to get the right data. It seems that's been the problem with these drives in the Windows world so WD had to release updated software to get the Windows disk formatters to do things right, or so I think. Thanks Volker. Cheers, Mark