From owner-freebsd-questions Tue Oct 22 17:11:29 2002 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 2894837B401 for ; Tue, 22 Oct 2002 17:11:28 -0700 (PDT) Received: from be-well.ilk.org (lowellg.ne.client2.attbi.com [24.147.188.198]) by mx1.FreeBSD.org (Postfix) with ESMTP id 343D043E65 for ; Tue, 22 Oct 2002 17:11:27 -0700 (PDT) (envelope-from freebsd-questions-local@be-well.no-ip.com) Received: from be-well.ilk.org (lowellg.ne.client2.attbi.com [24.147.188.198] (may be forged)) by be-well.ilk.org (8.12.6/8.12.5) with ESMTP id g9N0BD8s047899 for ; Tue, 22 Oct 2002 20:11:13 -0400 (EDT) (envelope-from freebsd-questions-local@be-well.no-ip.com) Received: (from lowell@localhost) by be-well.ilk.org (8.12.6/8.12.6/Submit) id g9N0BC5x047896; Tue, 22 Oct 2002 20:11:12 -0400 (EDT) X-Authentication-Warning: be-well.ilk.org: lowell set sender to freebsd-questions-local@be-well.ilk.org using -f To: freebsd-questions@freebsd.org Subject: Re: What do you do about your FFS fragmention? References: <20021022120108.Q212-100000@bigb3server.bbcluster.gr> <20021022094814.GA8138@happy-idiot-talk.infracaninophi> From: Lowell Gilbert Date: 22 Oct 2002 20:11:12 -0400 In-Reply-To: <20021022094814.GA8138@happy-idiot-talk.infracaninophi> Message-ID: <44ptu2qajj.fsf@be-well.ilk.org> Lines: 24 User-Agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.2 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Matthew Seaman writes: > On Tue, Oct 22, 2002 at 12:06:33PM +0300, BigBrother wrote: > > > > > > I know how the FFS (filesystem) works, and that it really does an excelent > > job in allocating clusters as local as possible. But it is also true that after > > some period of extensive use of it, the filesystem get fragmented, and > > results in severe degration of speed. > > > > One way is to dump/restore everything which is very painfull thing. > > > > ------- > > So, what do you do [except dump/restore] to defrag the FFS after some time > > of extensive use? Or you dont care for the degration in speed? > > Nope. You're thinking of Windows filesystems. So long as you don't > fill a filesystem to 100% or more, it will have sufficient space > reserved to be able to automatically defragment itself. No user > intervention required. The key point is to realize that "fragmentation" on a FFS filesystem is unrelated to the phenomenon called "fragmentation" on a MS filesystem. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message