New
#1
Are two drives Safer than One for same capacity?
You are pretty bright so I can't believe you said that! Why on earth would you believe it isn't realistic to back up a 4TB HDD?
Before I switched over to all SSDs, I backed up a 4TB drive all the time without trouble. I now have three 4TB SSDs with data on them and have no trouble backing them up. I would rather have to back up a single 4TB drive than two 2TB drives since it would require fewer backup drives to store and lug around and fewer steps to perform the backups.