From owner-freebsd-fs@FreeBSD.ORG Mon Sep 3 09:48:58 2007 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id E6DEE16A41A; Mon, 3 Sep 2007 09:48:58 +0000 (UTC) (envelope-from ticso@cicely12.cicely.de) Received: from raven.bwct.de (raven.bwct.de [85.159.14.73]) by mx1.freebsd.org (Postfix) with ESMTP id 5A06813C47E; Mon, 3 Sep 2007 09:48:57 +0000 (UTC) (envelope-from ticso@cicely12.cicely.de) Received: from cicely5.cicely.de ([10.1.1.7]) by raven.bwct.de (8.13.4/8.13.4) with ESMTP id l839D0JZ053367; Mon, 3 Sep 2007 11:13:01 +0200 (CEST) (envelope-from ticso@cicely12.cicely.de) Received: from cicely12.cicely.de (cicely12.cicely.de [10.1.1.14]) by cicely5.cicely.de (8.13.4/8.13.4) with ESMTP id l839CsNq096579 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Mon, 3 Sep 2007 11:12:55 +0200 (CEST) (envelope-from ticso@cicely12.cicely.de) Received: from cicely12.cicely.de (localhost [127.0.0.1]) by cicely12.cicely.de (8.13.4/8.13.3) with ESMTP id l839CsLB067878; Mon, 3 Sep 2007 11:12:54 +0200 (CEST) (envelope-from ticso@cicely12.cicely.de) Received: (from ticso@localhost) by cicely12.cicely.de (8.13.4/8.13.3/Submit) id l839CsXe067877; Mon, 3 Sep 2007 11:12:54 +0200 (CEST) (envelope-from ticso) Date: Mon, 3 Sep 2007 11:12:54 +0200 From: Bernd Walter To: Ivan Voras Message-ID: <20070903091253.GL54895@cicely12.cicely.de> References: <20070901074803.GM85633@comp.chem.msu.su> <20070902233930.O1113@woozle.rinet.ru> <20070903095344.P17354@woozle.rinet.ru> <9bbcef730709022313i72f93e34ye5fd9f69642b3286@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <9bbcef730709022313i72f93e34ye5fd9f69642b3286@mail.gmail.com> X-Operating-System: FreeBSD cicely12.cicely.de 5.4-STABLE alpha User-Agent: Mutt/1.5.9i X-Spam-Status: No, score=-4.4 required=5.0 tests=ALL_TRUSTED=-1.8, BAYES_00=-2.599 autolearn=ham version=3.1.7 X-Spam-Checker-Version: SpamAssassin 3.1.7 (2006-10-05) on cicely12.cicely.de Cc: freebsd-fs@freebsd.org, Dmitry Morozovsky Subject: Re: New option for newfs(3) to make life with GEOM easier X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: ticso@cicely.de List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 03 Sep 2007 09:48:59 -0000 On Mon, Sep 03, 2007 at 08:13:54AM +0200, Ivan Voras wrote: > On 03/09/07, Dmitry Morozovsky wrote: > > > My example which leads me to write the patch: gcache under graid3. > > > > Since then, I usually reserve 8 sectors at the end of each file system - just > > in case. > > Ok. It looks sensible then to reserve > 1 sector. I think nobody will > miss 4 KB of drive space today :) Drives doesn't always mean HDD these days. Floppies are rarely used, but still exists. Memory disks are quite common on embedded systems running on flash media, without space to waste, neither on MD nor on Flash. Flash media doen't allways mean big modern CF cards, there are cases with filesystems on e.g. small 2MB sized flash media. Don't get me wrong, I'm not against cutting a few sectors per default, just want to have a fallback. However, I would still prefer if users get a warning if they try to use a filesystem, which overflows the media. I guess the foot-shooting is quite common about this point. -- B.Walter http://www.bwct.de http://www.fizon.de bernd@bwct.de info@bwct.de support@fizon.de