External journal on flash drive

Mika Liljeberg mika.liljeberg at welho.com
Mon Sep 13 13:26:29 UTC 2004

On Sun, 2004-09-12 at 23:48, Jure Pečar wrote:
> On Sat, 11 Sep 2004 19:02:39 +0300
> Mika Liljeberg <mika.liljeberg at welho.com> wrote:

> > 2) Currently, the main drive seems to spin up within 60 seconds after a
> > write access. I would like the checkpointing to occur only when the
> > journal device is getting full. How can I tune this?
> Check vm.laptop_mode and vm.bdflush sysctl settings or their appropriate
> /proc entries and elvtune command.

Can you be a bit more specific? As far as I can see, none of these seems
to do exactly what I need (i.e. delay writes from journal to fs).



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