I was hoping to do so without having to down the server, and use a volume snapshot (live) mode. But I have been unsuccessful in getting it to work.
If I cannot get it work in live mode then I will try the WinPE probably using WinPE-512 since it has more of the drivers built-in.
I have the external usb HD attached as Drive E: and the server sees it successfully, but when I try to Ghost it fails with no real reason in the log file as to why.