From owner-freebsd-questions@FreeBSD.ORG Wed Jan 26 22:10:40 2011 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 16DBD106566C for ; Wed, 26 Jan 2011 22:10:40 +0000 (UTC) (envelope-from m.seaman@infracaninophile.co.uk) Received: from smtp.infracaninophile.co.uk (smtp6.infracaninophile.co.uk [IPv6:2001:8b0:151:1:3fd3:cd67:fafa:3d78]) by mx1.freebsd.org (Postfix) with ESMTP id 6FADD8FC12 for ; Wed, 26 Jan 2011 22:10:39 +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 (8.14.4/8.14.4) with ESMTP id p0QMAXvb001645 (version=TLSv1/SSLv3 cipher=DHE-RSA-CAMELLIA256-SHA bits=256 verify=NO) for ; Wed, 26 Jan 2011 22:10:33 GMT (envelope-from m.seaman@infracaninophile.co.uk) X-DKIM: Sendmail DKIM Filter v2.8.3 smtp.infracaninophile.co.uk p0QMAXvb001645 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=infracaninophile.co.uk; s=201001-infracaninophile; t=1296079833; bh=OyOZ3jbOvhV87QFg1w0I9V4a7sCEK+ewjY/DTtwubXk=; h=Message-ID:Date:From:MIME-Version:To:Subject:References: In-Reply-To:Content-Type:Cc:Content-Type:Date:From:In-Reply-To: Message-ID:Mime-Version:References:To; z=Message-ID:=20<4D409BD2.6080201@infracaninophile.co.uk>|Date:=20W ed,=2026=20Jan=202011=2022:10:26=20+0000|From:=20Matthew=20Seaman= 20|User-Agent:=20Mozilla/5.0=20(M acintosh=3B=20U=3B=20Intel=20Mac=20OS=20X=2010.6=3B=20en-US=3B=20r v:1.9.2.13)=20Gecko/20101207=20Thunderbird/3.1.7|MIME-Version:=201 .0|To:=20freebsd-questions@freebsd.org|Subject:=20Re:=20FreeBSD=20 9/ZFS:=20Striped=20Pool=20(2=20disks)=20migrating=20to=20mirror=20 (onto=0D=0A=20additional=20disk)|References:=20<4D3FDE82.4000105@m ail.zedat.fu-berlin.de>=09=09<20110126195800.GM75125@dan.emsphone.co m>=09=09<20110126204233.GN75125@dan.emsphone.com>=09=20<4D4098C4.600 0105@mail.zedat.fu-berlin.de>|In-Reply-To:=20<4D4098C4.6000105@mai l.zedat.fu-berlin.de>|X-Enigmail-Version:=201.1.1|OpenPGP:=20id=3D 60AE908C|Content-Type:=20multipart/signed=3B=20micalg=3Dpgp-sha1=3 B=0D=0A=20protocol=3D"application/pgp-signature"=3B=0D=0A=20bounda ry=3D"------------enigA7C435896036D539CE274801"; b=YPIMK28BTObuidMGheIE1BTIe5kbqncKyPle5kj5DVvcaXMMGSkgs5Hrj7rwdGYDX Jo3n1UDxqRC+Ie9nsVocEOYzDYmf6LwlFknytqti8/S/UF+S7oj4fL+rE1shFlQTzY /XuhaaabumPq+5ebaZ2pP5CltMlBGmA3Nnp9A0ks= Message-ID: <4D409BD2.6080201@infracaninophile.co.uk> Date: Wed, 26 Jan 2011 22:10:26 +0000 From: Matthew Seaman User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.2.13) Gecko/20101207 Thunderbird/3.1.7 MIME-Version: 1.0 To: freebsd-questions@freebsd.org References: <4D3FDE82.4000105@mail.zedat.fu-berlin.de> <20110126195800.GM75125@dan.emsphone.com> <20110126204233.GN75125@dan.emsphone.com> <4D4098C4.6000105@mail.zedat.fu-berlin.de> In-Reply-To: <4D4098C4.6000105@mail.zedat.fu-berlin.de> X-Enigmail-Version: 1.1.1 OpenPGP: id=60AE908C Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enigA7C435896036D539CE274801" X-Virus-Scanned: clamav-milter 0.96.5 at lucid-nonsense.infracaninophile.co.uk X-Virus-Status: Clean X-Spam-Status: No, score=-0.6 required=5.0 tests=BAYES_05,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,SPF_FAIL autolearn=no version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on lucid-nonsense.infracaninophile.co.uk Subject: Re: FreeBSD 9/ZFS: Striped Pool (2 disks) migrating to mirror (onto additional disk) X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Jan 2011 22:10:40 -0000 This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigA7C435896036D539CE274801 Content-Type: text/plain; charset=ISO-8859-15 Content-Transfer-Encoding: quoted-printable On 26/01/2011 21:57, O. Hartmann wrote: > My thinking was simple, I thought since the two physical 1TB disks buil= d > one joint pool of 2TB overall capacity, I could simply 'mirror' this > pool to another disk of the same capacity. > Is there a way to 'send' via ZFS the data of the pool to the backup > disk, like a snapshot from one pool to another one? Yes. Predictably enough the command is 'zfs send ...' -- with a counterpart 'zfs receive ...' See zfs(1) for details. You have to send a snapshot, or the delta between a previous snapshot and a more recent one. However, it's not to difficult to turn that into effectively sending the state of a live filesystem so long as there aren't too many changes going on. Cheers, Matthew --=20 Dr Matthew J Seaman MA, D.Phil. 7 Priory Courtyard Flat 3 PGP: http://www.infracaninophile.co.uk/pgpkey Ramsgate JID: matthew@infracaninophile.co.uk Kent, CT11 9PW --------------enigA7C435896036D539CE274801 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/ iEYEARECAAYFAk1Am9kACgkQ8Mjk52CukIzmjQCdFAtJxfiP6cWELKC3kzktOfJs ogsAoIb6ditIo+i6ESUqi35wFy3N7KLs =aBc1 -----END PGP SIGNATURE----- --------------enigA7C435896036D539CE274801--