[ILUG] hdparm

[Keith Hyland]

so here's another hdparm q.

im trying to get my home server (suse6.3) to go to sleep.. 
i have set hdparm -S 240 for the three drives hda hdc hdd 
hda keeps starting up again.  

setting hdparm -y /dev/hda sends it to sleep for about 15 seconds then it
starts up again.  
/dev/hda has /boot and / partitions.
swap is on /dev/hdc 

where should i look for whatever is kicking in the drive?
/var/log/messages dosent show anything that seems to be doing it.   altough
there is an entry every 20 mins:

Nov 24 03:50:27 oak -- MARK --
Nov 24 04:10:27 oak -- MARK --
Nov 24 04:30:27 oak -- MARK --
Nov 24 04:50:27 oak -- MARK --
Nov 24 05:10:27 oak -- MARK --
Nov 24 05:30:27 oak -- MARK --
Nov 24 05:50:27 oak -- MARK --
Nov 24 06:10:27 oak -- MARK --
Nov 24 06:30:27 oak -- MARK --
Nov 24 06:50:27 oak -- MARK --
Nov 24 07:10:27 oak -- MARK --

any thoughts?

keith