I'm having an issue with this as well. Going on over 36 hours to zero-out a 1TB Lacie (5400RPM) connected via USB 2.0 to a Macbook Air 1.6GHz Core i5.
One issue may be that this drive contains my iTunes library, and at some point a screen saver showing album covers from iTunes kicked on. I changed my screen saver settings so this would not happen approximately 20 hours ago. Any chance this may have delayed the process?
Also, if the process is being handled by OS X is there a way to see where OS X is in the process? What should I look for? In Activity Monitor, kernel_task and windowsserver are both way up there for CPU Time (40+ hours), with BBLaunch Agent and Cleaner having approximately the same CPU time (between 9-10 hours)
If something is not working correctly is there any harm in force-quitting the process? I have a backup of this drive that has been un-zero'd.
Thanks!
