Date: Thu, 26 Jan 2006 09:48:15 +0100 From: Pawel Jakub Dawidek <pjd@FreeBSD.org> To: Steven Schoch <schoch-freebsd.org@starnet.com> Cc: freebsd-geom@freebsd.org Subject: Re: gmirror on disks of different size Message-ID: <20060126084815.GA5926@garage.freebsd.pl> In-Reply-To: <6650332b0601251444v47e6320dr44a4976a5adf5e14@mail.gmail.com> References: <6650332b0601251444v47e6320dr44a4976a5adf5e14@mail.gmail.com>
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--FL5UXtIhxfXey3p5 Content-Type: text/plain; charset=iso-8859-2 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Jan 25, 2006 at 02:44:26PM -0800, Steven Schoch wrote: +> I have been using gvinum, but it seems that's not supported in FreeBSD +> 6.0, so I'd like to switch to something more reliable like gmirror. AFAIK gvinum is supported. +> da0s1d and da1s1g are the same size. This leaves unused space on da1, +> on which I have da1s1e (/tmp) and da1s1f (/scratch). +>=20 +> da0s1a and da1s1a are both the same size and have / on both. +> da0s1b and da1s1b are both swap partitions. +>=20 +> In the event of a failure of da1, I can simply boot from da0s1a, and +> continue where I left off (with the loss of /scratch and /tmp - no big +> deal). A failure of da0 will only be noticed by gvinum (although the +> loss of the swap partition da0s1b may require a reboot.) +>=20 +> So how do I run this setup using gmirror? All the documentation I +> have read shows giving full disks of identical size. With gmirror you can mirror any GEOM providers (disks, slices, partitions, stripes, encrypted providers - anything). You can simply: # gmirror label root da0s1a da1s1a # gmirror label usr da0s1d da1s1g Which will create /dev/mirror/root and /dev/mirror/usr for you. --=20 Pawel Jakub Dawidek http://www.wheel.pl pjd@FreeBSD.org http://www.FreeBSD.org FreeBSD committer Am I Evil? Yes, I Am! --FL5UXtIhxfXey3p5 Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (FreeBSD) iD8DBQFD2IzPForvXbEpPzQRAv0wAKDPsNKsi3q4gU1q+JtD/zs1kHWplQCg3Y1Q JFWvBAvmA1bihcknns7Xj/0= =xnQi -----END PGP SIGNATURE----- --FL5UXtIhxfXey3p5--
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