A few weeks ago I hooked up 2Tb of external storage (WD HDD and Thermaltake enclosure) for my HR24. As I already only have 40% left, I'm wondering if I can expand my storage further without buying another 2Tb drive and enclosure and going thru the powerdown, swap, and bootup routine. Can a RAID enclosure with multiple drives be utilized, using the RAID controller to switch between the drives without going thru the old swap routine? In short, what are the alternatives to having to catalogue a collection of 2Tb drives?
So going back to the original question...the answer is...2TB is the current maximum hard drive capacity limit per DVR. Even with raid storage or larger drives, only 2TB per DVR can be utilized. The only current means to increase more overall capacity is via multiple DVRs with multiple hard drives.
This is one of the things that challenges the HR34 situation. If the hard drive goes on that unit (assuming there are no other DVRs), the household loses everything in terms of recorded content. Perhaps that helps motivate a solution for some form of account-based "backup" capability.