Hard Disks turn on but they should not!

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http://forums.opensuse.org – Hi, I have Opensuse 11.2 with KDE desktop on a abit motherboard with 2gb ram, 2 SATA Hard drives and 2 IDE hard drives (master and slave on IDE2), plus the ide master boot hard disk on IDE 1. I programmed the 2 SATA and IDE drives to turn off after 1 min inactiviti with HDPARM -S 12 , but often Opensuse wakes up all drives, wich vanishes the purpose to keep them off when not used. The only running software are the normal desktop tasks : the device notifier the system tray the task manager the application launcher menu the digital clock Any suggestion to avoid this? thank you (Distributions)