I have run into many situations where creative/marketing companies have 3TB or 4TB or more worth of uncompressable graphic files that need backing up and archiving. There are plenty of solutions such as NAS devices for network storage but the issue is the off-site/DR portion of the backup plan.
Does anyone have any recommendations on how to backup this amount of data off-site? I realize bandwidth isn't fast enough for nightly to a datacenter or on-line backup solution, and those are very expensive as well. We have entertained having a couple NAS devices and physically rotating them, but that can easily mess up the scheduled jobs and counts on user intervention, which isn't reliable.