From owner-freebsd-current Thu Jul 6 4:18:40 2000 Delivered-To: freebsd-current@freebsd.org Received: from pcwin002.win.tue.nl (pcwin002.win.tue.nl [131.155.71.72]) by hub.freebsd.org (Postfix) with ESMTP id D9E1B37B9A9 for ; Thu, 6 Jul 2000 04:18:36 -0700 (PDT) (envelope-from stijn@pcwin002.win.tue.nl) Received: by pcwin002.win.tue.nl (Postfix, from userid 1001) id 756B21931; Thu, 6 Jul 2000 13:18:40 +0200 (CEST) Date: Thu, 6 Jul 2000 13:18:40 +0200 From: Stijn Hoop To: current@freebsd.org Subject: Large disks (was Re: bin/19635: add -c for grand total to df(1)) Message-ID: <20000706131840.B58747@pcwin002.win.tue.nl> References: <16565.962880093@axl.ops.uunet.co.za> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2i In-Reply-To: ; from blk@skynet.be on Thu, Jul 06, 2000 at 12:58:27PM +0200 Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Thu, Jul 06, 2000 at 12:58:27PM +0200, Brad Knowles wrote: [whole discussion about df -h output snipped] > You're ignoring the fact that "Size" is the total physical size > of the device, while "Used", "Avail", and "Capacity" take into > account the 10% (or whatever) overhead that is typically left > unallocated for performance reasons. Maybe this isn't the right list to ask, but stepping into this: I bought a 30G drive recently, and I was wondering if the 10% 'rule' for performance is still really needed. I mean, I lose 3 _gigs_ of storage space, and otherwise the performance detoriates? That doesn't make sense to me. I am running now with reserved set to 2% (on my /home, not on smaller / & /usr of course) and haven't noticed anything of performance loss; of course I haven't managed to fill that ~27G in the short time I have this setup ;) Which also leads me to the question: is it desirable, given those large disks, to have a finer grain of control over reserved space, for example setting reserved space to 2.5% or whatever? Or can this be done already? In the hopes that someone can enlighten me... --Stijn To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message