MTBF is the average value of the repair time describing the time when the product is changed from a faulty state to a working state.

Which of the following is not a preparatory work before database migration?

An enterprise uses all-flash memory to support its business. To reduce the pressure of duplicate data, the system can deduplicate data online. The granularity of deduplicated data blocks is the size of ( ).

Volume mirroring function, which of the following statements is correct? (Multiple Choice)

Center A has 3000G data, Center B has 1500G data, the deduplication rate is 3, and the data in Center B is copied to Center A, how much space does Center A need at least?