Spinning disks are very reliable and write once is the only good long term backup strategy. Backups to restore live systems can involve rewriting and pruning,

Spinning disks are very reliable and write once is the only good long term backup strategy. Backups to restore live systems can involve rewriting and pruning, but live system backups are about availability not archiving. Prepayment makes financial issues more likely to be catastrophic because the timing of the issue is the mid term of the prepayment period…with a one year period the issue may go unnoticed for more than six month and gmail empties your spam/trash folder after 30 days. You can stick hard disks in a box and there’s nothing to manage.