Upload & Sell: Off
aborr wrote: The important thing for me is to have three copies of all my files:
1. a current 'working' version of the files
2. a recent snapshot (backup) of the working version in an external enclosure of some sort
3. another backup, stored off-site in some safe place, far from the computer
If you need to look at a file, you use the working version.
If the working version gets messed up due to an accident, or virus, or hardware failure, you restore it from the backup.
If you lose the on-site backup due to fire, flood, theft, etc., you still have the off-site backup to use to rebuild your system
It's the only way to go (with a few variations on that theme).
Three copies of every file, with one off-site. Easy to remember, easy to implement, and inexpensive. A RAID set (of any kind) is a single unit and thus effectively a single copy of the file. Use RAID for performance primarily, high availability secondarily (for high pressure 24/7 commercial enterprise), and not for backup in-and-of-itself.