From owner-freebsd-questions Fri Jun 12 11:47:33 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id LAA12534 for freebsd-questions-outgoing; Fri, 12 Jun 1998 11:47:33 -0700 (PDT) (envelope-from owner-freebsd-questions@FreeBSD.ORG) Received: from caladan.tdx.co.uk (caladan.tdx.co.uk [195.188.177.4]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id LAA12371 for ; Fri, 12 Jun 1998 11:46:39 -0700 (PDT) (envelope-from kpielorz@tdx.co.uk) Received: from tdx.co.uk (lorca-tx.tdx.co.uk [195.188.177.242]) by caladan.tdx.co.uk (8.8.8/8.8.8) with ESMTP id TAA11498; Fri, 12 Jun 1998 19:46:25 +0100 (BST) (envelope-from kpielorz@tdx.co.uk) Message-ID: <35817781.CB0DDD2B@tdx.co.uk> Date: Fri, 12 Jun 1998 19:46:25 +0100 From: Karl Pielorz Organization: TDX X-Mailer: Mozilla 4.05 [en] (WinNT; I) MIME-Version: 1.0 To: greeves CC: "questions@FreeBSD.ORG" , "'Tim Gerchmez'" Subject: Re: Fragmentation? References: <01BD95F7.82BF7C90@dhcp7_ppp07.mfn.org> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG greeves wrote: > The "traditional" way to defrag a *nix native partition is to dd from your > (to be defragged) partition to a temporary area, and then back again (after > clearing the original space of all files of course!) > . > Granted, this is a *collossal* pain in the &#^$, but it is *very* fast, and > *totally* effective. dd'ing the data off - you might be lucky if it's going to an identical drive, but surely - if you dd back onto your original drive, your just making a verbatim copy - fragmentation at all? I could understand 'backing' up the drive to some other drive / media, nuking the original - and then restoring the data (e.g. dump & restore) - but just using 'dd' is going to make an exact copy of the disk :-( Isn't it? I've noticed - FreeBSD usually only fragments filesystems for a reason, i.e. low on space... Regards, Karl Pielorz To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message