From owner-freebsd-geom@FreeBSD.ORG Thu Sep 21 05:38:26 2006 Return-Path: X-Original-To: freebsd-geom@freebsd.org Delivered-To: freebsd-geom@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 4610B16A403; Thu, 21 Sep 2006 05:38:26 +0000 (UTC) (envelope-from m.seaman@infracaninophile.co.uk) Received: from smtp.infracaninophile.co.uk (ns0.infracaninophile.co.uk [81.187.76.162]) by mx1.FreeBSD.org (Postfix) with ESMTP id 57FAB43D45; Thu, 21 Sep 2006 05:38:24 +0000 (GMT) (envelope-from m.seaman@infracaninophile.co.uk) Received: from [IPv6:::1] (localhost [IPv6:::1]) by smtp.infracaninophile.co.uk (8.13.8/8.13.8) with ESMTP id k8L5bwoI021315; Thu, 21 Sep 2006 06:37:59 +0100 (BST) (envelope-from m.seaman@infracaninophile.co.uk) Authentication-Results: smtp.infracaninophile.co.uk from=m.seaman@infracaninophile.co.uk; sender-id=softfail; spf=softfail X-SenderID: Sendmail Sender-ID Filter v0.2.14 smtp.infracaninophile.co.uk k8L5bwoI021315 Message-ID: <45122531.6010503@infracaninophile.co.uk> Date: Thu, 21 Sep 2006 06:37:53 +0100 From: Matthew Seaman Organization: Infracaninophile User-Agent: Thunderbird 1.5.0.7 (X11/20060915) MIME-Version: 1.0 To: "Marc G. Fournier" References: <20060920222944.M1031@ganymede.hub.org> In-Reply-To: <20060920222944.M1031@ganymede.hub.org> X-Enigmail-Version: 0.94.0.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="------------enig815541DFFD9F3A837117C746" X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-2.0.2 (smtp.infracaninophile.co.uk [IPv6:::1]); Thu, 21 Sep 2006 06:38:19 +0100 (BST) X-Virus-Scanned: ClamAV 0.88.4/1914/Wed Sep 20 20:24:45 2006 on happy-idiot-talk.infracaninophile.co.uk X-Virus-Status: Clean X-Spam-Status: No, score=-2.6 required=5.0 tests=AWL,BAYES_00, DKIM_POLICY_TESTING,NO_RELAYS autolearn=ham version=3.1.5 X-Spam-Checker-Version: SpamAssassin 3.1.5 (2006-08-29) on happy-idiot-talk.infracaninophile.co.uk Cc: freebsd-questions@freebsd.org, freebsd-geom@freebsd.org Subject: Re: geom - help ... X-BeenThere: freebsd-geom@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: GEOM-specific discussions and implementations List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 21 Sep 2006 05:38:26 -0000 This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig815541DFFD9F3A837117C746 Content-Type: text/plain; charset=ISO-8859-15 Content-Transfer-Encoding: quoted-printable Marc G. Fournier wrote: >=20 > So, again, if I'm reading through things correctly, I'll have to do > something like: >=20 > gstripe st1 da1 da2 > gstripe st2 da3 da4 > gmirror drive st1 st2 > newfs drive That's the wrong way round, I think. If you lose a drive, then you've the whole of one of your stripes and have no resilience. Shouldn't you rather stripe the mirrors: gmirror gm0 da1 da2 gmirror gm1 da3 da4 gstripe gs0 gm0 gm1 newfs gs0 This way if you lose a drive then only one of your gmirrors loses resilience and the other half of your disk space is unaffected. Cheers, Matthew --=20 Dr Matthew J Seaman MA, D.Phil. 7 Priory Courtyard Flat 3 PGP: http://www.infracaninophile.co.uk/pgpkey Ramsgate Kent, CT11 9PW --------------enig815541DFFD9F3A837117C746 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (FreeBSD) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFFEiU28Mjk52CukIwRCMaVAKCExvTfu+j6iHUDO5i+Pc8B4EWKBwCffraJ q0mLUNyB9cEMLVN4w9Byt2E= =ZJmJ -----END PGP SIGNATURE----- --------------enig815541DFFD9F3A837117C746--