Thanks for taking the time to help Don. I had searched similar phrases in Google (had a few visited links in the search when I attempted yours) so I did see some of them, but I definitely could have missed one with the specific set up in it. 

I was able to connect but grpadmin was unfortunately not the password. I tried some commands (I think it was setenv resetpassword 1) and it said it was temporarily changing the password, but then also said saying something about being connected to the secondary and it stopped progressing. I switched the serial cable to the other and I was never able to get back to that point...it would freeze, and no matter how many times I powered off/on, I could not connect on the designated com port again. 

In hindsight, this unit might be slightly short of my space needs anyway. (600gb x 16) minus the overhead (raid parity, hot spare, etc.). It might make more sense to load up a spare R720 I have laying around with larger 900gb drives and I can gain slightly more space without the additional hardware. 

Thanks for the information though. If I do decide to play around with it some more for something else, your info was a great start and I appreciate it!