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Newsgroups: comp.unix.bsd.freebsd.misc Path: euryale.cc.adfa.oz.au!newshost.carno.net.au!harbinger.cc.monash.edu.au!news.rmit.EDU.AU!news.unimelb.EDU.AU!cs.mu.OZ.AU!munnari.OZ.AU!news.Hawaii.Edu!ames!enews.sgi.com!news.sgi.com!news.maxwell.syr.edu!news.magicnet.net!news.thrush.com!alfred!bilver!bill From: bill@bilver.oau.org (Bill Vermillion) Subject: Re: Defraging my drives??? Organization: W. J. Vermillion - Orlando / Winter Park, FL Date: Tue, 18 Mar 1997 01:40:46 GMT Message-ID: <1997Mar18.014046.16424@bilver.oau.org> References: <5ghvcj$gul$1@brokaw.wa.com> <5gk6pc$mdq@graves.maths.tcd.ie> Lines: 34 Xref: euryale.cc.adfa.oz.au comp.unix.bsd.freebsd.misc:37304 In article <5gk6pc$mdq@graves.maths.tcd.ie>, David Malone <dwmalone@maths.tcd.ie> wrote: >kaosman@protec.net (Rob Voss) writes: > >>I was curious... Everytime I boot up in FreeBSD I get a % value for the >>fragmentation on my hard drive.. How do I defrag it since it is fragmented? > >You'll probably notice that the %fragmentation is very low, and so >not much to worry about. If you really want to de-frag it then you >could backup the filesystem and restore it, but chances are you won't >be able to tell the difference. That 'fragementation' has nothing to do with 'fragmentation' as is known in the DOS world. The BSD file system put the files in 8K hunks. At the end of the file anything that is less than 8K is put in a fragment. As other files are added, the tails of others could be put in this fragment depending on how it was mapped. When a file that has a 'fragement' is extended, this data, along with the rest IF it makes up an 8K segement will be put in other extents, and if any is left it will be in a new "fragment". 'fragements' can hold as little as one part of a file or several. Don't worry - that's the way it is supposed to be th -- Bill Vermillion - bill.vermillion@oau.org | bill@bilver.com