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 o6KKW3dl039780 for ; Tue, 20 Jul 2010 15:32:03 -0500 Received: from greer.hardwarefreak.com (localhost [127.0.0.1]) by cuda.sgi.com (Spam Firewall) with ESMTP id E939145D5D8 for ; Tue, 20 Jul 2010 13:30:02 -0700 (PDT) Received: from greer.hardwarefreak.com (mo-65-41-216-221.sta.embarqhsd.net [65.41.216.221]) by cuda.sgi.com with ESMTP id AcAk2jRkZAZbqfbx for ; Tue, 20 Jul 2010 13:30:02 -0700 (PDT) Received: from [192.168.100.53] (gffx.hardwarefreak.com [192.168.100.53]) by greer.hardwarefreak.com (Postfix) with ESMTP id 9EAC76C011 for ; Tue, 20 Jul 2010 15:30:01 -0500 (CDT) Message-ID: <4C460748.3080608@hardwarefreak.com> Date: Tue, 20 Jul 2010 15:30:00 -0500 From: Stan Hoeppner MIME-Version: 1.0 Subject: Re: 4k sector drives References: <201007202058.35141@zmi.at> In-Reply-To: <201007202058.35141@zmi.at> List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: xfs-bounces@oss.sgi.com Errors-To: xfs-bounces@oss.sgi.com To: xfs@oss.sgi.com Michael Monnerie put forth on 7/20/2010 1:58 PM: > Dear list, I don't know who else to ask this: > > I recently bought 2 new 4k sector drives (WD Caviar Green 2TB, > WD20EARS), but Linux kernel 2.6.34.1 still says: > > # blockdev --getss /dev/sdd > 512 > > Shouldn't that be 4096? Where is the problem? Firmware sector size translation is the problem. The WD20EARS is apparently not a native 4096K sector size drive, but a transitional product. It is 4k sector size internally but the firmware translates this to 512B sectors to the OS driver. It's a hybrid. Google "WD20EARS sector size" -- Stan _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs