From owner-freebsd-isp Mon Jun 7 10: 0:44 1999 Delivered-To: freebsd-isp@freebsd.org Received: from corwin.nall.com (corwin.nall.com [216.30.44.163]) by hub.freebsd.org (Postfix) with ESMTP id E24C215270 for ; Mon, 7 Jun 1999 10:00:40 -0700 (PDT) (envelope-from joe@nall.com) Received: from nall.com (corwin.nall.com [216.30.44.163]) by corwin.nall.com with ESMTP (8.7.1/8.7.1) id MAA01550 for ; Mon, 7 Jun 1999 12:00:30 -0500 (CDT) Message-ID: <375BFAAE.CCC65835@nall.com> Date: Mon, 07 Jun 1999 12:00:30 -0500 From: Joe Nall Organization: Nall Design Works X-Mailer: Mozilla 4.6 [en] (X11; I; HP-UX B.10.26 9000/770) X-Accept-Language: en MIME-Version: 1.0 To: freebsd-isp@FreeBSD.ORG Subject: Re: Full filesystem References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-isp@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org spork wrote: > > Hi, > > We're running a news server that does a "rolling expire", so it is capable > of keeping the drives 99% full (31GB) 24/7. We have two 34G ccd arrays, > so even bumping down one percent is kind of a waste of space. Since newfs > gives a buffer zone for safety (you can fill the fs to 105% or so), I want > to keep usage up above the warning zone. I'm not an expert on this filesystem, but on other filesystems that extra 5-10% is used by the filesystem to minimize fragmentation. On HP-UX there is a definite performance impact when this is made too small. Can a filesystem guru clue us in on the right rule of thumb? Is it 10% or is there a particular total size (e.g. 500mb) above which the extra space is wasted? I'm going to do some big raids this summer and 5% of 100+GB starts to add up. Cheers, Joe To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message