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

A customer's initial backup capacity is 1T, and the average daily data increment is 10G. The backup strategy is to do a full backup once a week, and a differential backup every day from Tuesday to Sunday. The storage period of full backup and additional backup data is 4 weeks. Which value should the required backend capacity not be less than without considering deduplication, redundancy ratio, replication, etc.?