For those who read my previous post, I transferred my data from one drobo to the new one and moved the old drives over once I was finished. It took almost two days for 1.5 TB of data, but worked like a champ. I used one on firewire (the drobo transmitting the data) and one on usb 2 (the receiving drobo). This was the fastest configuration between two usb 2 and two firewires. each of the other configuration transferred around 2 Megs per sec, while the usb 2 and firewire in my configuration clocked in at 14. The other way around only clocked in at 8.
Anyhow, for the question:
I just activated dual redundancy and it is saying approximately 16 hours to complete. Do I have to leave the drobo on or can I power it off to move the system (proper shutdown through dashboard)?