From owner-freebsd-fs@FreeBSD.ORG Wed Oct 3 14:36:03 2012 Return-Path: Delivered-To: freebsd-fs@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id B7598106564A; Wed, 3 Oct 2012 14:36:03 +0000 (UTC) (envelope-from avg@FreeBSD.org) Received: from citadel.icyb.net.ua (citadel.icyb.net.ua [212.40.38.140]) by mx1.freebsd.org (Postfix) with ESMTP id D1B6B8FC0C; Wed, 3 Oct 2012 14:36:02 +0000 (UTC) Received: from odyssey.starpoint.kiev.ua (alpha-e.starpoint.kiev.ua [212.40.38.101]) by citadel.icyb.net.ua (8.8.8p3/ICyb-2.3exp) with ESMTP id RAA07164; Wed, 03 Oct 2012 17:35:59 +0300 (EEST) (envelope-from avg@FreeBSD.org) Message-ID: <506C4D4F.2090909@FreeBSD.org> Date: Wed, 03 Oct 2012 17:35:59 +0300 From: Andriy Gapon User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:15.0) Gecko/20120911 Thunderbird/15.0.1 MIME-Version: 1.0 To: Steven Hartland References: <505DF1A3.1020809@FreeBSD.org> <80F518854AE34A759D9441AE1A60D2DC@multiplay.co.uk> In-Reply-To: <80F518854AE34A759D9441AE1A60D2DC@multiplay.co.uk> X-Enigmail-Version: 1.4.3 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: freebsd-fs@FreeBSD.org, freebsd-geom@FreeBSD.org Subject: Re: zfs zvol: set geom mediasize right at creation time X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 03 Oct 2012 14:36:03 -0000 on 23/09/2012 04:04 Steven Hartland said the following: > Do you know what the effect of the volblocksize change > will have on a volume who's disk block size changes? > e.g. via a quirk for a 4k disk being added I am not sure that I got your question... My patch doesn't affect neither volblocksize value nor disk block size [geom property]. It changes only stripe size geom property. > I ask as we've testing a patch here which changes ashift to > be based on stripesize instead of sectorsize but in its > current form it has some odd side effects on pools which > are boot pools. > > Said patch is attached for reference. I think that the patch makes sense and would be curious to learn more about the side-effects. -- Andriy Gapon