From owner-freebsd-fs@FreeBSD.ORG Tue Apr 10 20:22:48 2007 Return-Path: X-Original-To: freebsd-fs@FreeBSD.org 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 360D216A402; Tue, 10 Apr 2007 20:22:48 +0000 (UTC) (envelope-from pjd@garage.freebsd.pl) Received: from mail.garage.freebsd.pl (arm132.internetdsl.tpnet.pl [83.17.198.132]) by mx1.freebsd.org (Postfix) with ESMTP id CF75013C448; Tue, 10 Apr 2007 20:22:47 +0000 (UTC) (envelope-from pjd@garage.freebsd.pl) Received: by mail.garage.freebsd.pl (Postfix, from userid 65534) id 63748487F0; Tue, 10 Apr 2007 22:22:46 +0200 (CEST) Received: from localhost (154.81.datacomsa.pl [195.34.81.154]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.garage.freebsd.pl (Postfix) with ESMTP id 04C864569A; Tue, 10 Apr 2007 22:22:40 +0200 (CEST) Date: Tue, 10 Apr 2007 22:22:32 +0200 From: Pawel Jakub Dawidek To: freebsd-current@FreeBSD.org, freebsd-fs@FreeBSD.org Message-ID: <20070410202232.GE90135@garage.freebsd.pl> References: <20070406214325.GB61039@garage.freebsd.pl> <20070410172256.GA1401@roadrunner.q.local> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="SNIs70sCzqvszXB4" Content-Disposition: inline In-Reply-To: <20070410172256.GA1401@roadrunner.q.local> X-PGP-Key-URL: http://people.freebsd.org/~pjd/pjd.asc X-OS: FreeBSD 7.0-CURRENT i386 User-Agent: mutt-ng/devel-r804 (FreeBSD) X-Spam-Checker-Version: SpamAssassin 3.0.4 (2005-06-05) on mail.garage.freebsd.pl X-Spam-Level: X-Spam-Status: No, score=-2.6 required=3.0 tests=BAYES_00 autolearn=ham version=3.0.4 Cc: Subject: Re: ZFS - quick start. 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: Tue, 10 Apr 2007 20:22:48 -0000 --SNIs70sCzqvszXB4 Content-Type: text/plain; charset=iso-8859-2 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Apr 10, 2007 at 07:22:56PM +0200, Ulrich Spoerlein wrote: > Hi Pawel, >=20 > impressive stuff. Is it possible and useable to use ZFS as a GMIRROR > replacement where one disk is detached most of the time? >=20 > I use an external (Firewire) disk to mirror my system disk. It gets only > attached once a week for synchronizing. That way, I get a consistent > 1:1 mirror of the system disk. Yes, it is possible. The nice things about ZFS is that (because of integrated with volume manager) it will know exactly which data to synchronize, so won't be blindly synchronize entire disk. > Does ZFS cope with detached drives as well? And can the detached drive > function on its own? (Sometimes, I use this firewire drive as a > portable disk to supplement my laptop storage). I don't think that is possible, you may want to look for the answer in zfs-discuss@opensolaris.org mailing list archives. --=20 Pawel Jakub Dawidek http://www.wheel.pl pjd@FreeBSD.org http://www.FreeBSD.org FreeBSD committer Am I Evil? Yes, I Am! --SNIs70sCzqvszXB4 Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (FreeBSD) iD8DBQFGG/IIForvXbEpPzQRAtXNAKDZ2haQFPjXfrKhL01v4+uGwkWMhgCguPv7 pQCfB6G6ANIa+3A+zotvVfo= =YTkJ -----END PGP SIGNATURE----- --SNIs70sCzqvszXB4--