From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id n2CDrCn4079679 for ; Thu, 12 Mar 2009 08:53:32 -0500 Received: from mailsrv1.zmi.at (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id 91B6318F39F for ; Thu, 12 Mar 2009 06:52:49 -0700 (PDT) Received: from mailsrv1.zmi.at (mailsrv1.zmi.at [212.69.162.198]) by cuda.sgi.com with ESMTP id SLpaypVx46mAR806 for ; Thu, 12 Mar 2009 06:52:49 -0700 (PDT) Received: from mailsrv2.i.zmi.at (h081217054243.dyn.cm.kabsi.at [81.217.54.243]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (Client CN "mailsrv2.i.zmi.at", Issuer "power4u.zmi.at" (not verified)) by mailsrv1.zmi.at (Postfix) with ESMTP id EE777450C for ; Thu, 12 Mar 2009 14:52:16 +0100 (CET) Received: from saturn.localnet (saturn.i.zmi.at [10.0.0.2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mailsrv2.i.zmi.at (Postfix) with ESMTPSA id E137340017F for ; Thu, 12 Mar 2009 14:52:16 +0100 (CET) From: Michael Monnerie Subject: Re: LWN article: 4K disk sectors Date: Thu, 12 Mar 2009 14:52:16 +0100 References: <200903121258.51497@zmi.at> <49B909CC.7080402@sandeen.net> In-Reply-To: <49B909CC.7080402@sandeen.net> MIME-Version: 1.0 Content-Disposition: inline Message-Id: <200903121452.16419@zmi.at> List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Sender: xfs-bounces@oss.sgi.com Errors-To: xfs-bounces@oss.sgi.com To: xfs@oss.sgi.com On Donnerstag 12 M=E4rz 2009 Eric Sandeen wrote: > Take a look at the mkfs.xfs man page: > > =A0 =A0 =A0 =A0-s sector_size > =A0 =A0 =A0 =A0 =A0 =A0 =A0 This option specifies the fundamental =A0sect= or =A0size =A0of > =A0 =A0 =A0 =A0 =A0 =A0 =A0 the filesystem. =A0The sector_size is specifi= ed either as > =A0 =A0 =A0 =A0 =A0 =A0 =A0 a value in bytes with size=3Dvalue or as a ba= se two loga- > =A0 =A0 =A0 =A0 =A0 =A0 =A0 rithm value with log=3Dvalue. =A0The default = sector_size is > =A0 =A0 =A0 =A0 =A0 =A0 =A0 512 bytes. The minimum value for sector =A0si= ze =A0is =A0512; > =A0 =A0 =A0 =A0 =A0 =A0 =A0 the =A0maximum is 32768 (32 KiB). The sector_= size must be > =A0 =A0 =A0 =A0 =A0 =A0 =A0 a power of 2 size and cannot be made =A0large= r =A0than =A0the > =A0 =A0 =A0 =A0 =A0 =A0 =A0 filesystem block size. Ugh, I felt so good this morning, until you responded ... ;-) I thought that it's a limitation of the Linux kernel in more parts than = just the filesystem (like block cache), that sector sizes must be 512B. = If I had a 4K drive, would that be usable with XFS already? mfg zmi -- = // Michael Monnerie, Ing.BSc ----- http://it-management.at // Tel: 0660 / 415 65 31 .network.your.ideas. // PGP Key: "curl -s http://zmi.at/zmi.asc | gpg --import" // Fingerprint: AC19 F9D5 36ED CD8A EF38 500E CE14 91F7 1C12 09B4 // Keyserver: wwwkeys.eu.pgp.net Key-ID: 1C1209B4 _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs