From mboxrd@z Thu Jan 1 00:00:00 1970 From: Loic Dachary Subject: Re: ceph-disk disk partition alignment Date: Tue, 23 Feb 2016 12:11:49 +0700 Message-ID: <56CBEA15.4090309@dachary.org> References: Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from relay2-d.mail.gandi.net ([217.70.183.194]:49135 "EHLO relay2-d.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754179AbcBWFMA (ORCPT ); Tue, 23 Feb 2016 00:12:00 -0500 In-Reply-To: Sender: ceph-devel-owner@vger.kernel.org List-ID: To: Somnath Roy , ceph-devel Hi, This not a ceph-deploy issue, rather a ceph-disk issue. Did you file an= issue regarding this problem or would you like me to create one ? IIRC= there are cases where sgdisk is not able to create a partition aligne= d as recommended (but parted could). Do you know anything about that ? Cheers On 23/02/2016 01:27, Somnath Roy wrote: > Hi, > I am seeing ceph-deploy is creating data partition from sector 1 igno= ring what sgdisk is recommending (256 in my disk). Basically, it should= be aligned with physical sector size (reported in /sys/block//= queue/physical_block_size). In my case it is 16K physical and 4K logica= l...256 is perfectly fine as sgdisk/fdisk internally decides. > Disk performance will be severely impacted because of partitioning th= is way from ceph-deploy , any reason why we are doing like this ? > Thanks & Regards > Somnath > --=20 Lo=EFc Dachary, Artisan Logiciel Libre -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html