I started a eseutil /d /t f:\tmpdfr.edb G:\Exchsrvr\Mdbdata\priv1.edb
The Exchange EDB resides on a SCSI drive, but the temp DB could only be used with an external IDE drive over USB.
It was started at 11:00am Eastern and has been running for 3 hours and only 3% has been completed. I now fear that this will run into tomorrows work day. The other issue is when users log on the server will reboot.
So I am hoping to stop the defrag and return to normal and start the defrag the coming Friday evening and hope that it finishes over the weekend and hopefully without rebooting.