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Re: 2.4 kernel tweaking

On Saturday 12 October 2002 17:02, Matej Cepl wrote:
> On Fri, Oct 11, 2002 at 10:25:40PM -0400, christophe barbe wrote:
> > > ext3 will write to the disk every 5 seconds or so. For me,
> > > that is what prevents the HD from spinning down. Under ext2
> > > the noflushd should work nicely, but ext3 wants to write to
> > > its journal every so often...
> >
> > I don't understand what has to be written to disk if there is
> > no activity. I will try to boot with ext2, but if the guilty is
> > ext3, then it would be a significant drawback of ext3. I am
> > still convinced that something is not right but if it is the
> > way ext3 work (hd activity without other activities) then I wil
> > have a look at other journalized fs.
> Actually, I struggle with the same problem too, and currently it
> seems to me, that parametr noatime in /etc/fstab for every hard
> disk should help (see mount(1) for more info). Moreover, the
> page http://bulmalug.net/body.phtml?nIdNoticia=1511 could help
> too.

I've also experimented on this for quite a while and found that only ext2 (or 
other non journalling fs) will allow the disk to spin down with the help of 
noflushd and setting noatime.
I found no journalling fs which works. If you do please let me know how.

greets benny

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