Date: Fri, 28 May 1999 15:51:04 +1000 From: Peter Jeremy <jeremyp@gsmx07.alcatel.com.au> To: wayne@msen.com Cc: hackers@FreeBSD.ORG Subject: Re: File system gets too fragmented ??? Message-ID: <99May28.153523est.40353@border.alcanet.com.au>
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"Michael R. Wayne" <wayne@msen.com> wrote: >Long ago, back when disks were small, slow and expensive, someone >wrote a program that properly defragged a Unix filesystem. If it was that long ago, chances are it is pre-FFS - the System 5 File System and its predecessors. I remember using a Motorola SysVR3 system that included a disk de-fragmenting tool. Re-writing a disk in-place will always be slow because you're mostly doing small I/O's at random places on the platter. dump/newfs/restore is the safest way to defragment a disk. It's probably faster than an in-place de-fragmenter as well. Peter To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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