From owner-freebsd-questions Sat Mar 2 15:43:43 2002 Delivered-To: freebsd-questions@freebsd.org Received: from shorin.ryu.com (shorin.ryu.com [192.67.63.129]) by hub.freebsd.org (Postfix) with ESMTP id 31E7137B400 for ; Sat, 2 Mar 2002 15:43:41 -0800 (PST) Received: from ryu.com (wado.ryu.com [192.67.63.133]) by shorin.ryu.com (8.9.3/8.9.3) with ESMTP id RAA21118 for ; Sat, 2 Mar 2002 17:43:41 -0600 (CST) Message-ID: <3C8163B8.6050804@ryu.com> Date: Sat, 02 Mar 2002 17:43:52 -0600 From: "John R. S. Mascio" Reply-To: mascio@ryu.com Organization: Ryu Enterprises User-Agent: Mozilla/5.0 (Windows; U; Win98; en-US; rv:0.9.2) Gecko/20010726 Netscape6/6.1 X-Accept-Language: en-us MIME-Version: 1.0 To: freebsd-questions@FreeBSD.ORG Subject: Re: defragment UFS References: <002301c1c1a6$b9e06f70$0801a8c0@ethel> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit 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 David Smithson wrote: > Hi all. Is there a defragment utility for FreeBSD? Is it even > necessary? If not, why not? > > > UNIX in general does not have a defrag utility. The UNIX file systems don't worry about fragmentation as the only block you have any fragmentation on is the last block of a file. Now, if you are worried about having your file blocks contiguous on the disk, it is not an issue with the file system nor does UNIX suffer from performance problems due to it. There are others who could give very detailed and technical answers. I'm rusty on the theory, but being a long time admin, it's never been a problem. JRSM -- _ | John Raymond Stone Mascio _|_|_) | mascio@ryu.com (_|_| | 214.725.7518 | 972.240.5040 ----------------------------------------------------------------- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message