I've got Disk and File Monitor running now. The pulse times against the ship's clock at 1 second.
Set the drive to go off in 3 mins and the DM stops but the file monitor plods one hphmon05 seems to be the main 'user'. With skype and explorer popping up now and then.
Well the main thing is that it doesn't seem to be the fault of the dual drive setup that I would like to keep. And G the W and others sound confident that the standard was set ages ago.
Something just brought the disk back to life. svchost tedious when you don't want the disk to run. With this soft, I'll be able to see if the disk is allowed to sleep peacefully.
Thanks again for all the help.