From owner-freebsd-fs@FreeBSD.ORG Mon Jun 4 20:17:22 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 0E8D8106566B for ; Mon, 4 Jun 2012 20:17:22 +0000 (UTC) (envelope-from matthew@FreeBSD.org) Received: from smtp.infracaninophile.co.uk (smtp6.infracaninophile.co.uk [IPv6:2001:8b0:151:1:3cd3:cd67:fafa:3d78]) by mx1.freebsd.org (Postfix) with ESMTP id 6ECFF8FC15 for ; Mon, 4 Jun 2012 20:17:21 +0000 (UTC) Received: from seedling.black-earth.co.uk (seedling.black-earth.co.uk [81.187.76.163]) (authenticated bits=0) by smtp.infracaninophile.co.uk (8.14.5/8.14.5) with ESMTP id q54KHH64078989 (version=TLSv1/SSLv3 cipher=DHE-RSA-CAMELLIA256-SHA bits=256 verify=NO); Mon, 4 Jun 2012 21:17:17 +0100 (BST) (envelope-from matthew@FreeBSD.org) X-DKIM: OpenDKIM Filter v2.5.2 smtp.infracaninophile.co.uk q54KHH64078989 Authentication-Results: smtp.infracaninophile.co.uk/q54KHH64078989; dkim=none (no signature); dkim-adsp=none Message-ID: <4FCD17C6.5020503@FreeBSD.org> Date: Mon, 04 Jun 2012 21:17:10 +0100 From: Matthew Seaman User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:12.0) Gecko/20120428 Thunderbird/12.0.1 MIME-Version: 1.0 To: Kaya Saman References: <4FCD13CF.3010406@gmail.com> In-Reply-To: <4FCD13CF.3010406@gmail.com> X-Enigmail-Version: 1.4.1 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig329BAD6B4A8FAFCE0CDA0462" X-Virus-Scanned: clamav-milter 0.97.4 at lucid-nonsense.infracaninophile.co.uk X-Virus-Status: Clean X-Spam-Status: No, score=-2.6 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00 autolearn=ham version=3.3.2 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on lucid-nonsense.infracaninophile.co.uk Cc: freebsd-fs@FreeBSD.org Subject: Re: Using ZFS as RAID0 - disk offline question 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: Mon, 04 Jun 2012 20:17:22 -0000 This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig329BAD6B4A8FAFCE0CDA0462 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable On 04/06/2012 21:00, Kaya Saman wrote: > in ZFS when using a simple RAID 0 style array is there a way to recover= > a pool after a disk has gone down? No. RAID0 has no resilience to disk failure. That's why things like RAID1, RAID10, RAIDz, RAIDz2 exist: so that your data will survive failure of some number of the drives it is stored on. Make sure you have good backups, basically. Cheers Matthew --=20 Dr Matthew J Seaman MA, D.Phil. PGP: http://www.infracaninophile.co.uk/pgpkey --------------enig329BAD6B4A8FAFCE0CDA0462 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.0.16 (Darwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk/NF80ACgkQ8Mjk52CukIwGoQCfbgBjnROEfNDlh4po8ksYOzwQ 0ycAnR61tiTSfdk5uW2baws//nSTkuaB =OQiH -----END PGP SIGNATURE----- --------------enig329BAD6B4A8FAFCE0CDA0462--