Date: Fri, 01 Mar 2002 23:08:08 -0800 From: David Smithson <david@customfilmeffects.com> Cc: freebsd-questions@freebsd.org Subject: Re: defragment UFS Message-ID: <3C807A58.1030209@customfilmeffects.com> References: <002301c1c1a6$b9e06f70$0801a8c0@ethel> <20020302050142.GB1634@raggedclown.net>
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I see. Well that's dandy. I have another filesystem-related question. I have a 1.2TB file server running FreeBSD. The filesystem is exported via SMB. When I view the properties of a SAMBA shared folder, there are two file sizes shown: "size" and "size on disk". The "size on disk" is consitently greater than the "size". I ignorantly assumed this meant that data was fragmented. Do you have any idea what this means? The question of data size came about when I ran a backup of a directory tree that is reportedly 76 GB. The Large DTF tape medium I'm using is supposed to hold 108 GB at it's only compression ratio of 1:2.59. I ran "tar -cvf /dev/sa0 /dir-tree". After some time, tar reported that it had reached the end of the medium. Clearly 76 GB should fit on this tape. I can't figure out what is happening here. Any ideas? Thanks for your help. Cliff Sarginson wrote: >On Fri, Mar 01, 2002 at 08:57:16PM -0800, David Smithson wrote: > >>Hi all. Is there a defragment utility for FreeBSD? Is it even necessary? If not, why not? >> >No. >No. >No matter what size file you have on FreeBSD it will never have more >than one partially filled block, when a file grows it fills the spaces >up rather than allocating new blocks uneccesarily a la DOS. > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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