From owner-freebsd-questions@FreeBSD.ORG Wed Jun 9 18:45:28 2004 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 5190616A4CE for ; Wed, 9 Jun 2004 18:45:28 +0000 (GMT) Received: from clunix.cl.msu.edu (clunix.cl.msu.edu [35.9.2.10]) by mx1.FreeBSD.org (Postfix) with ESMTP id EDF2143D45 for ; Wed, 9 Jun 2004 18:45:27 +0000 (GMT) (envelope-from jerrymc@clunix.cl.msu.edu) Received: (from jerrymc@localhost) by clunix.cl.msu.edu (8.11.7p1+Sun/8.11.7) id i59Ij8Y12090; Wed, 9 Jun 2004 14:45:08 -0400 (EDT) From: Jerry McAllister Message-Id: <200406091845.i59Ij8Y12090@clunix.cl.msu.edu> To: rpratt1950@earthlink.net (Randy Pratt) Date: Wed, 9 Jun 2004 14:45:06 -0400 (EDT) In-Reply-To: <20040609142552.52087a65.rpratt1950@earthlink.net> from "Randy Pratt" at Jun 09, 2004 02:25:52 PM X-Mailer: ELM [version 2.5 PL2] MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit cc: freebsd-questions@freebsd.org cc: Robert Storey Subject: Re: Improper shutdown of system / Fragmentation Problems / Boot 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: Wed, 09 Jun 2004 18:45:28 -0000 > > On Wed, 9 Jun 2004 07:05:43 +0800 > Robert Storey wrote: > > > > > > I am kinda new to FBSD, still kinda learning stuff. Anyway, when my > > > system boots i see all kinda fragmentation information. How do I > > > correct this? Any good reading material? > > > > FreeBSD will defragment itself without any action from the user. > > However, defragmentation requires some blank space, and (ideally) you > > should not let any partition get more than 80% full. You can check on > > that with "df -h": > > I've been running partitions well over 90% for over six years on > FreeBSD and have not seen any problems with doing so. > > Do you have a FreeBSD documentation reference for that 80% figure? It is mentioned as a recommendation. It is not an absolute. Do a little searching and you will probably find some references. We have some that run in to the 90-s most of the time too. It depends on what you are actually doing. If it is a fairly stable collection of data that doesn't get a lot written to it most of the time, it shouldn't matter. If it is very volatile - lots of files come and go, then it could make a bigger difference. Unless it gets to the 100% mark (except for root) with that 100% being with the set-aside already taken out, it shouldn't cause anything to crash. ////jerry > > Thanks, > > Randy > > > bob@sonic:~> df -h > > Filesystem Size Used Avail Capacity Mounted on > > /dev/ad0s2a 248M 68M 160M 30% / > > devfs 1.0K 1.0K 0B 100% /dev > > /dev/ad0s2g 2.4G 281M 1.9G 13% /home > > /dev/ad0s2e 248M 1.2M 227M 1% /tmp > > /dev/ad0s2f 8.7G 2.4G 5.6G 30% /usr > > /dev/ad0s2d 248M 17M 211M 8% /var > > > > The column labeled "Capacity" tells you the percentage of space being > > consumed - over 80% would be bad. Note that the "devfs" uses 100% (on > > FBSD 5.x, it doesn't exist on 4.x) - that's no problem, it's not a > > partition and it will always be 100%. > > > > regards, > > Robert > > > > > > > -- > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org" >