A customer's initial backup capacity is 1T, and the average daily data increment is 10GB. The backup strategy is to do a full backup every Monday and a differential backup every day from Tuesday to…

A customer's initial backup capacity is 1T, and the average daily data increment is 10GB. The backup strategy is to do a full backup every Monday and a differential backup every day from Tuesday to Sunday. The retention period of full and incremental data is 4 weeks. Without considering deduplication/redundancy ratio/etc., please calculate the required backend capacity. What should be no less than?