HDD heads parking

[Zac]

Responding to 
<http://lists.freebsd.org/pipermail/freebsd-mobile/2007-October/010186.html>

This problem seems to affect Toshiba a105 laptops also. 'ataidle -P 254 
0 0' seems to fix the problem after the system is loaded, but I've 
noticed that when the computer boots or reboots, the load cycles still 
seem to increase (did a test via smartctl). It is an improvement, but 
I'm trying to figure out how to disable this completely, even at boot time.