On Mon, 31 Oct 2005, Alistair Hamilton wrote:
> What laptop_mode does is cache lots of disc accesses so allowing the hdd
> to spin down and thereby save battery. This is certainly a risky thing
> to do, since data can be lost. However, many people believe that the
> slight risk is worth the increased battery life.
>
> My wee Dell X1 is almost silent (no fan and an inaudible hda) and it is
> difficult to hear the disc. However, I think it runs all the time. The
> battery life is much shorter in Linux than in Windows. Past laptops of
> mine used other Linux distros that included laptop_mode, and enabling
> it, so spinning down the disc, improved battery life considerably.
>
> So, what I am missing is what laptop_mode does -- spin down the disc a
> lot of the time by caching slightly dangerously.
Have you had a look at /etc/sysconfig/powersave/disk yet? It should have
all the options that you are looking for.
Regards
Christoph
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