> I can't get the slow drive warning indicator
> to work (that might be useful during my
> Qualification Vibration Testing to check disk retries).
The interface in this preferences window is slightly counter-intuitive and that was proabably the problem. You have to set the threshold *before* adding the drive to the list. To change the threshold you need to remove the drive from the list, enter a new threshold, then add it again. Once the threshold is set it should appear in the list.