From owner-freebsd-geom@FreeBSD.ORG Mon Jan 29 14:48:30 2007 Return-Path: X-Original-To: freebsd-geom@FreeBSD.ORG Delivered-To: freebsd-geom@FreeBSD.ORG Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id BE45216A401 for ; Mon, 29 Jan 2007 14:48:30 +0000 (UTC) (envelope-from arne_woerner@yahoo.com) Received: from web30302.mail.mud.yahoo.com (web30302.mail.mud.yahoo.com [209.191.69.64]) by mx1.freebsd.org (Postfix) with SMTP id 86F6913C47E for ; Mon, 29 Jan 2007 14:48:30 +0000 (UTC) (envelope-from arne_woerner@yahoo.com) Received: (qmail 12848 invoked by uid 60001); 29 Jan 2007 14:48:30 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=X-YMail-OSG:Received:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding:Message-ID; b=WvCbZ7ouOMWunMyFJToQN+cmViKPokLV00Ww1YTt6a45n2DCSNL5Ol/YzXdl3g5eBR6WSyAEkHZSmKv9KtUIOcO0GvFf5TQH6CV+uceI1fzLmaKMqzBXur781m4MkzK7Emz/onpha7h2SfDQDcAUnb6E16QUO1i/0suGNfMDzHc=; X-YMail-OSG: H4T1H7IVM1mO6NgBBIjpbZSNuD7MVUCRSgvhmunYsszEhsqhNxKm_KCIKpwOygPybnrDq48HiA_F7yKYX36pW3Z0pnTtXEu7M1j1V2AOJiks1pzyr04StqMT7KG76DOD_6D6pZcxdZki.NU- Received: from [213.54.1.88] by web30302.mail.mud.yahoo.com via HTTP; Mon, 29 Jan 2007 06:48:29 PST Date: Mon, 29 Jan 2007 06:48:29 -0800 (PST) From: "R. B. Riddick" To: Hansa , freebsd geom In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Message-ID: <901910.12288.qm@web30302.mail.mud.yahoo.com> Cc: Subject: RE: How do I gmirror slices? 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: Mon, 29 Jan 2007 14:48:30 -0000 --- Hansa wrote: > Ok. One question pops into mind. I'm transfering / which includes my kernel, > to a new disk (probably with a different setup). this means the kernel file > could be written to a different sector. So I have to tell the bootmgr where > it is located. Don't I? > Hmm... I dont think so... There is the first sector of the disk, that is read by the BIOS, then there are 8KB somewhere at a fixed position outside the file system... And I think those 8KB are already able to understand/read UFS... :-) > > > 2. # gmirror label -v -b round-robin gm0 /dev/ad6s1 > > > # gmirror label -v -b round-robin gm0 /dev/ad6s2 > > looks good > Except for the 2nd command. It should be gm1 instead of gm0. > Oh yes... U r right... > I presume gstripe and gconcat like gmirror are using similar ways to store > metadata? > Yup > Which of those is the better choice? > Depends... gstripe has better performance, if it can issue requests for all disks... But gconcat can use the full space of disks of non-equal size (minus one sector per disk for meta data of course)... -Arne ____________________________________________________________________________________ Expecting? Get great news right away with email Auto-Check. Try the Yahoo! Mail Beta. http://advision.webevents.yahoo.com/mailbeta/newmail_tools.html