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 12:49:15 +0700 Message-ID: <56CBF2DB.10602@dachary.org> References: <56CBEA15.4090309@dachary.org> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from relay4-d.mail.gandi.net ([217.70.183.196]:35382 "EHLO relay4-d.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752133AbcBWFtZ (ORCPT ); Tue, 23 Feb 2016 00:49:25 -0500 In-Reply-To: Sender: ceph-devel-owner@vger.kernel.org List-ID: To: Somnath Roy , ceph-devel Here it is http://tracker.ceph.com/issues/14842 On 23/02/2016 12:24, Somnath Roy wrote: > eph-deploy is creating data partition from sector 1 ignoring what sgd= isk is recommending (256 in my disk). Basically, it should be aligned w= ith physical sector size (reported in /sys/block//queue/physica= l_block_size). In my case it is 16K physical and 4K logical...256 is pe= rfectly fine as sgdisk/fdisk internally decides. >> Disk performance will be severely impacted because of partitioning t= his way from ceph-deploy ,=20 --=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