Date: Sun, 16 Jun 1996 05:53:29 -0400 (AST) From: Sean Batson <valtech@caribnet.net> To: Terry Lambert <terry@lambert.org> Cc: questions@FreeBSD.ORG Subject: Re: defrags Message-ID: <Pine.BSF.3.91.960616055227.169A-100000@PPP2F.sunbeach.net> In-Reply-To: <199606110043.RAA05303@phaeton.artisoft.com>
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You guys said I shouldn't worry about the 0.7% but its now 0.9% and increasing each time I shutdown the software down and restart. Sean.. On Mon, 10 Jun 1996, Terry Lambert wrote: > > How is fragmentation dealt with under FreeBSD? > > By using clyinder groups to prevent it from ever ocurring. > > > Is there a utility for defragmenting the Hard Drive? > > No. Since it never occurs, you never need a defragger. > > > The following is summary of my start up showing my disk: > > > > /dev/rwd0a: clean 8604 free (108 frags, 2124 blocks, 0.7% fragmentation) > > /dev/rwd0s2f: clean 21384 free (148 frags, 5309 blocks, 0.1% fragmentation) > > /dev/rwd0s2e: clean 12934 free (70 frags, 3216 blocks, 0.5% fragmentation) > > > > How do i defrag the above partitions? > > Change your file sizes so that partial files are all some multiple > of 512 bytes. ;-). The reported fragmentation is the unusable > disk space (as opposed to the DOS fragmentation, which is the disk > space rendered unusable by the DOS FS layout policy). > > You will always have some minimal amount of fragmentation because > hard disks read and write in terms of blocks. > > > Terry Lambert > terry@lambert.org > --- > Any opinions in this posting are my own and not those of my present > or previous employers. > >
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