From owner-freebsd-questions@FreeBSD.ORG Thu Apr 3 01:04:10 2003 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 AA49837B401 for ; Thu, 3 Apr 2003 01:04:10 -0800 (PST) Received: from dire.bris.ac.uk (dire.bris.ac.uk [137.222.10.60]) by mx1.FreeBSD.org (Postfix) with ESMTP id 872D143FDD for ; Thu, 3 Apr 2003 01:04:09 -0800 (PST) (envelope-from Jan.Grant@bristol.ac.uk) Received: from mail.ilrt.bris.ac.uk by dire.bris.ac.uk with SMTP-PRIV with ESMTP; Thu, 3 Apr 2003 10:04:05 +0100 Received: from cmjg (helo=localhost) by mail.ilrt.bris.ac.uk with local-esmtp (Exim 3.16 #1) id 1910Zk-00065s-00; Thu, 03 Apr 2003 10:00:00 +0100 Date: Thu, 3 Apr 2003 10:00:00 +0100 (BST) From: Jan Grant X-X-Sender: cmjg@mail.ilrt.bris.ac.uk To: Heinrich Rebehn In-Reply-To: <3E8BD9F7.4050404@ant.uni-bremen.de> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: Jan Grant cc: questions@freebsd.org Subject: Re: newfs parameters for a 500 GB volume ? 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: Thu, 03 Apr 2003 09:04:10 -0000 On Thu, 3 Apr 2003, Heinrich Rebehn wrote: > Hi, > > I am repeating the post below, because it obviously hasn't made it to > the list (at least i did not get it back from the list). > > Can someone please give me some advice, because i will be setting up the > discs today. > > Thank you > > > Hi, > > I am going to set up a RAID 0 array with two 250G drives, making 500G. > Which newfs parameters would you recommend for it? As many cylinders per group as possible. I think newfs has an "infinity" setting to pick the right number. > I am afraid of ending up with a fs with Gigs of space and no inodes > left, or a fs that is heavily fragmented and slow. > Reading the newfs manpage didn't quit help me, it explains all switches > The files on the volume will be 2 MB average. There's a "bytes per inode" setting that you can plug this figure into. You might want to be a little more generous with inodes than that (give yourself some elbow room). You need inodes for symlinks and directories too. > Thank you for any suggestions or pointers. > > -- jan grant, ILRT, University of Bristol. http://www.ilrt.bris.ac.uk/ Tel +44(0)117 9287088 Fax +44 (0)117 9287112 http://ioctl.org/jan/ "...perl has been dead for more than 4 years." - Abigail in the Monastery