Seeking P2 Archive Advice

So I need to move to HD, and would love a tapeless workflow, eventually delivering 1080i on HD cam. We shoot a couple hundred hours of SD material each year, that we work with on and off throughout a season of episodes. So I understand the offload in the field, and I think a focus enhancement HDD will help me overcome the need to buy a lot of the P2 cards, and I understand the field process (i think) but I'm having a hard time figuring out what's the best way to archive all the camera original footage.

I saw the LTO and it sounds good, but I think it holds 300gb, and with the large amount of material we shoot, I was hoping for something bigger before I needed another tape. ITB drives worry me big time, I've had enough fail to making individual drives sat on a shelf not a good alternative. So I've been looking at drobopro, it can sit on a network, you can load it up with a 8 1 or 2tb drives, when it then protects data in a raid, when I fill them all up, I can remove them all (its really easy) drop all 8 on a shelf, and when I need something off them later, I load them all back in the drobo, in any order and all 8tbs are ready to go again immediately, no raid rebuild. This allows me to fill up new drives time and again, at about $1000 for 6 tb of protected data storage. So I feel better because I have my data protected, even if two drives in the archive two fail, it will rebuild. I would move files off the drobo to my sans system drives for edit as needed. Any advice, is this just an awful idea ?




Dave