I think you can just unplug the USB cable, works for me on my 622. The light stays on but the drive goes to sleep for me if left pluged into the USB.
Thanks. I ended up just unplugging the power cable from the back of the EHD. I plug it back in, the drive powers up, and the VIP 622 recognizes the drive again and all my recordings are there. Hopefully, this also works for the 211.