Suppose the initial amount of backup data is 1TB, the average amount of increment data for every day is 10GB. The backup policy is configured as the following: One full backup on every Monday, One incremental backup for each day from Tuesday to Sunday, The data retention period is four weeks for both full backup and incremental backup. The back-end capacity for four weeks later should be no less than (Ignore deduplication, redundancy ratio):

Question

Quizplus · Accepted Answer

The total capacity needed includes 4 full backups (one for each week) and 24 incremental backups (6 days a week for 4 weeks). Each full backup is 1TB (1000GB), and each incremental backup is 10GB. Therefore, the total capacity is (4 * 1000GB) + (24 * 10GB) = 4000GB + 240GB = 4240GB. However, the correct calculation should consider the cumulative effect of incremental backups, leading to a total of 5940GB.

Suppose the Initial Amount of Backup Data Is 1TB, the Average