From owner-freebsd-geom@FreeBSD.ORG Mon Jan 29 15:29:18 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 C755C16A407 for ; Mon, 29 Jan 2007 15:29:18 +0000 (UTC) (envelope-from mythtv@logic-q.nl) Received: from amsfep17-int.chello.nl (amsfep17-int.chello.nl [62.179.120.12]) by mx1.freebsd.org (Postfix) with ESMTP id 0FEAB13C491 for ; Mon, 29 Jan 2007 15:29:17 +0000 (UTC) (envelope-from mythtv@logic-q.nl) Received: from mail.logic-q.nl ([89.98.181.67]) by amsfep14-int.chello.nl (InterMail vM.6.01.04.04 201-2131-118-104-20050224) with ESMTP id <20070129152825.SZKL664.amsfep14-int.chello.nl@mail.logic-q.nl>; Mon, 29 Jan 2007 16:28:25 +0100 Received: from localhost (localhost.logic-q.nl [127.0.0.1]) by mail.logic-q.nl (Postfix) with ESMTP id D27EE116FB; Mon, 29 Jan 2007 16:28:24 +0100 (CET) X-Virus-Scanned: amavisd-new at logic-q.nl Received: from mail.logic-q.nl ([127.0.0.1]) by localhost (mail.logic-q.nl [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id tKkI0a48ZYpZ; Mon, 29 Jan 2007 16:28:24 +0100 (CET) Received: from kotsbak (kotsbak [192.168.0.149]) by mail.logic-q.nl (Postfix) with SMTP id 797CB11651; Mon, 29 Jan 2007 16:28:24 +0100 (CET) From: "Hansa" To: "R. B. Riddick" , "freebsd geom" Date: Mon, 29 Jan 2007 16:28:33 +0100 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3028 In-Reply-To: <901910.12288.qm@web30302.mail.mud.yahoo.com> Importance: Normal 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 15:29:18 -0000 > > 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... :-) Thats easy. Cool! > > gstripe or gconcat? 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)... I want to use the remainder of the mirrored drives for striping, so I guess gconcat is the better choice. Also since all data on it will be read/written via the network interface (100Mb) performance won't be much of an issue. Thanks again. -Hansa