From owner-freebsd-fs@FreeBSD.ORG Thu Aug 29 10:44:59 2013 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id 8B09D739 for ; Thu, 29 Aug 2013 10:44:59 +0000 (UTC) (envelope-from kraduk@gmail.com) Received: from mail-qc0-x22f.google.com (mail-qc0-x22f.google.com [IPv6:2607:f8b0:400d:c01::22f]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 4BBCA29CC for ; Thu, 29 Aug 2013 10:44:59 +0000 (UTC) Received: by mail-qc0-f175.google.com with SMTP id m4so113336qcy.6 for ; Thu, 29 Aug 2013 03:44:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=yzmrxu734rEq/ZVezNwsE2HAT5dPYuDAC1SErtK0USY=; b=yyb3dK0/Fq1uA1LFYF6VutyIfhl1Bk4SU372zu4LTrp9johHoP86Gv4iMLLNsY41QL YOibEIOrCrCFxdjHpKqwbfQzHZY0NlfP0gajxDG54APu9Io+IlaUVh+vX0yUE8h2wOe2 1peJOj+AVZeMfO6042Qd0HRHtGbi3O0TY831OqExtp0LMfrNOCFjDkK77zWKopH1uHkB Ctg2sgIoRy+PQI2lYxhntByhkBeoVnX5B/RawaUYIg7tujxa0M7QXhcupSdFlHbcQE6W 29UaXDUWo9kLzPNHvbiNBfN6cE5OW4PydQtmHe0PHbZjt1BWiMNt8LVtnQigaK+xygNl Nvdg== MIME-Version: 1.0 X-Received: by 10.49.35.177 with SMTP id i17mr2853148qej.77.1377773098322; Thu, 29 Aug 2013 03:44:58 -0700 (PDT) Received: by 10.224.189.195 with HTTP; Thu, 29 Aug 2013 03:44:58 -0700 (PDT) In-Reply-To: <20130828142546.GA16523@neutralgood.org> References: <20130827181127.24761@relay.ibs.dn.ua> <20130827172727.GA73465@neutralgood.org> <20130828112444.5123@relay.ibs.dn.ua> <20130828142546.GA16523@neutralgood.org> Date: Thu, 29 Aug 2013 11:44:58 +0100 Message-ID: Subject: Re: exictent zroot re-alignment to 4K From: krad To: kpneal@pobox.com Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.14 Cc: FreeBSD FS X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 29 Aug 2013 10:44:59 -0000 I havent tested that myself does that mean you can have ashift=9 for your 1st raidz(23)* vdev and ashift=12 for the 2nd in a striped raidz(23)* setup? If so does the same apply in a mirror? On 28 August 2013 15:25, wrote: > On Wed, Aug 28, 2013 at 11:47:51AM +0100, krad wrote: > > you cant mirrir if your ashift=9 as its a pool level thing > > Well, strictly speaking the ashift is per-vdev. > > Of course, if you only have a single disk and therefore only have > a single vdev then the distinction doesn't matter. It does matter > when adding new vdevs to an existing pool. > > > On 28 August 2013 09:24, Zeus Panchenko <[1]zeus@ibs.dn.ua> wrote: > > > > krad <[2]kraduk@gmail.com> wrote: > > > is it just an alignment problem or are you ashift=9 (zdb zroot | > grep > > > ashift) as well? If you are already ashift=12, > > > > yes, I am ashift=9 and it is the very cause I decided to re-allocate > > the > > partition ... > -- > Kevin P. Neal http://www.pobox.com/~kpn/ > > "I like being on The Daily Show." - Kermit the Frog, Feb 13 2001 >