From owner-freebsd-questions@FreeBSD.ORG Tue Apr 12 00:38:21 2005 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 5E95716A4CF for ; Tue, 12 Apr 2005 00:38:21 +0000 (GMT) Received: from pi.codefab.com (pi.codefab.com [199.103.21.227]) by mx1.FreeBSD.org (Postfix) with ESMTP id 0E29343D45 for ; Tue, 12 Apr 2005 00:38:21 +0000 (GMT) (envelope-from cswiger@mac.com) Received: from localhost (localhost [127.0.0.1]) by pi.codefab.com (Postfix) with ESMTP id 795EF5DA0; Mon, 11 Apr 2005 20:38:20 -0400 (EDT) Received: from pi.codefab.com ([127.0.0.1]) by localhost (pi.codefab.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 97612-01; Mon, 11 Apr 2005 20:38:19 -0400 (EDT) Received: from [192.168.1.3] (pool-68-161-53-96.ny325.east.verizon.net [68.161.53.96]) by pi.codefab.com (Postfix) with ESMTP id 156D95CA8; Mon, 11 Apr 2005 20:38:18 -0400 (EDT) Message-ID: <425B1874.7040507@mac.com> Date: Mon, 11 Apr 2005 20:38:12 -0400 From: Chuck Swiger Organization: The Courts of Chaos User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.6) Gecko/20050319 X-Accept-Language: en-us, en MIME-Version: 1.0 To: NMH References: <20050411220512.95166.qmail@web41810.mail.yahoo.com> In-Reply-To: <20050411220512.95166.qmail@web41810.mail.yahoo.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: amavisd-new at codefab.com cc: questions Subject: Re: Hard drive fullness limits information help request X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 12 Apr 2005 00:38:21 -0000 NMH wrote: [ ... ] > For shame. A "your question is too dumb to have > written to our mailing list"? I hope you are not > trying to represent the great open arms of FreeBSD and > the questions mailing list. My Question is quite > appropriate for either list. Nor should someone even > be given the feeling their questions are too basic to > bother us with! (unless your aim is to drive people > away) If we were using Usenet rather than mailing lists, I would agree with your position more-- article cross-posting would be handled without duplication of resources, and newsreader software would handle xposting so that people only read one copy, even if they are subscribed to both newsgroups. This is not the case with mailing lists. The reason why this thread isn't really appropriate to freebsd-hardware is because it concerns how the filesystem architecture works in general, on any type of device from a hard drive, to a floppy drive, to a USB pen device. > However, I was hoping someone could point me more > towards a white paper or some such other information. Sure. Try looking at: zcat /usr/share/doc/smm/05.fastfs/paper.gz | less zcat /usr/share/doc/papers/diskperf.ascii.gz | less Kirk McKusick also wrote a book on this topic, if you want more information. However, a point to consider is that if you do some benchmarks for yourself using your hardware in the circumstances you care about, you will get better numbers for your situation than you do looking at generalizations, averages, or specific results from some other hardware being tested in some way that may or may not resemble your workload. -- -Chuck