From owner-freebsd-stable@freebsd.org Thu Jun 2 19:49:20 2016 Return-Path: Delivered-To: freebsd-stable@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 82508B65FC8 for ; Thu, 2 Jun 2016 19:49:20 +0000 (UTC) (envelope-from peter@rulingia.com) Received: from mailman.ysv.freebsd.org (unknown [127.0.1.3]) by mx1.freebsd.org (Postfix) with ESMTP id 69BF51B67 for ; Thu, 2 Jun 2016 19:49:20 +0000 (UTC) (envelope-from peter@rulingia.com) Received: by mailman.ysv.freebsd.org (Postfix) id 6558CB65FC7; Thu, 2 Jun 2016 19:49:20 +0000 (UTC) Delivered-To: stable@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 64F8EB65FC6 for ; Thu, 2 Jun 2016 19:49:20 +0000 (UTC) (envelope-from peter@rulingia.com) Received: from vps.rulingia.com (vps.rulingia.com [103.243.244.15]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "rulingia.com", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id F35AF1B66 for ; Thu, 2 Jun 2016 19:49:19 +0000 (UTC) (envelope-from peter@rulingia.com) Received: from server.rulingia.com (ppp59-167-167-3.static.internode.on.net [59.167.167.3]) by vps.rulingia.com (8.15.2/8.15.2) with ESMTPS id u52Jn3ra033157 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 3 Jun 2016 05:49:09 +1000 (AEST) (envelope-from peter@rulingia.com) X-Bogosity: Ham, spamicity=0.000000 Received: from server.rulingia.com (localhost.rulingia.com [127.0.0.1]) by server.rulingia.com (8.15.2/8.15.2) with ESMTPS id u52JmwQp084799 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Fri, 3 Jun 2016 05:48:58 +1000 (AEST) (envelope-from peter@server.rulingia.com) Received: (from peter@localhost) by server.rulingia.com (8.15.2/8.15.2/Submit) id u52JmuuX084798; Fri, 3 Jun 2016 05:48:56 +1000 (AEST) (envelope-from peter) Date: Fri, 3 Jun 2016 05:48:56 +1000 From: Peter Jeremy To: "Eugene M. Zheganin" Cc: stable@freebsd.org Subject: Re: HAST, zfs and local mirroring Message-ID: <20160602194856.GA84753@server.rulingia.com> References: <20160601132300.GA75625@zxy.spb.ru> <574FDC63.6090100@norma.perm.ru> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="45Z9DzgjV8m4Oswq" Content-Disposition: inline In-Reply-To: <574FDC63.6090100@norma.perm.ru> X-PGP-Key: http://www.rulingia.com/keys/peter.pgp User-Agent: Mutt/1.6.1 (2016-04-27) X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 02 Jun 2016 19:49:20 -0000 --45Z9DzgjV8m4Oswq Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On 2016-Jun-02 12:12:35 +0500, "Eugene M. Zheganin" wro= te: >differs a lot ? And why should I prefere this overcomplicated scheme >over the geom_mirror, which seems rather simple when comparing. Seems >like I can point HAST to /dev/mirror/whatever device, right ? Because using RAID of any sort under ZFS defeats a lot of the smarts in ZFS. In particular, you can no longer rely on scrub verifying that all your media content is valid. I've also had bad experiences with gmirror volumes silently getting out of sync on a crash. --=20 Peter Jeremy --45Z9DzgjV8m4Oswq Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQJ8BAEBCgBmBQJXUI2oXxSAAAAAAC4AKGlzc3Vlci1mcHJAbm90YXRpb25zLm9w ZW5wZ3AuZmlmdGhob3JzZW1hbi5uZXRFRUIyOTg2QzMwNjcxRTc0RTY1QzIyN0Ux NkE1OTdBMEU0QTIwQjM0AAoJEBall6Dkogs0N5oP/jBlrR3tlalCBVuA0VB5Z6M6 FgIUVsaPYZtTKjLXe9jDE1+bAkSc7W41pLaM7HgEerpshSI7BWoY08R06d3mtRgJ pmjObRATeQn/QGz2l+j5GDW+WSdZ1+ZHf8UUUlusBXxprWW7d4dyOK3iwwJLq3qC ack30bXRf4HSeAnuF7xWi7XJZBfYr8tBaFenzQsMn6/w/5CLdi1NaKZrcBX4tgel qDkcyra68grHErV2QOVdge2Zwj2SaWvylKl2cv9KH6zfX+vxI4oWljJxJpP6tYnt 76q/Wnsx29ZakOAGTTXixykLEnIJrY3AlqIAN/+wpUzmz/XKh5UqWo/YLssQWii3 F3a6GF2gWMu5ol6h1g6CaM8ripGyvQdf2RQw8Gy47BmEbggO9dBvYps8wiFeQgi5 J3Ui2TEw6BRFlm3nTNxmmTMXdD7AyJ4AAvOyZakypoNn0JgotAadNZY6SmeLNtUu yYSXNIGvzS+pUBCVcmumkiHmTUiLIWZ6B0WAJ/EOzFIn/ejh9GwvoSH90DnmZMdn 9BjBofnCxaGDaJgN+FT2RWmQSMHcR63p+JGCT4982xRn9u8S+2X77latGEYIMRs0 JL2hLheyJKMUWn3UbeJgBYZWElY++cD+CNoY+HGfEExLg/0JPcP+T7ddO3LXRiL4 eWCwqrW5IvUbvn3KSyUD =uZEu -----END PGP SIGNATURE----- --45Z9DzgjV8m4Oswq--