[mythtv-users] Fragmentation On Recording Disk?

jason maxwell decepticon at gmail.com
Wed Apr 4 18:38:53 UTC 2007


On 4/4/07, jason maxwell <decepticon at gmail.com> wrote:
> On 4/4/07, Matt Doran <matt.doran at papercut.biz> wrote:
> >
> >
> >  Tim Phipps wrote:
> >  On Wednesday 4 April 2007 8:31 am, James Warden wrote:
> >
> >
> >  Are disks formatted with
> > ext3 showing the same fragmentation factor ? And does one know the growth
> > rate of this factor ? (what are the relevant variables : disk size ?
> > technology ? file system ?)
>
> I thought that with ext2/3 fragmentation was kept in check by regular
> fscking. I may be wrong, but I've been using linux for a decade and
> have never noticed any performace symptoms that would make me think I
> needed a defrag.
> -J
>

Actually, it appears that linux filesystems have been designed to
minimize fragmentation to begin with. Here's a good, simplified
explanation of how it works:
http://geekblog.oneandoneis2.org/index.php/2006/08/17/why_doesn_t_linux_need_defragmenting
I need to learn to search before announcing my ignorance.
-J


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