Smart City A plans to purchase Huawei's distributed storage to store its traffic surveillance video. Which of the following products are available? (Multiple choice)

Which of the following statements about concepts related to the HyperReplication feature are correct? (Multiple choice)

The feature of Huawei SmartCache is to form an SSD disk into a smart cache pool, which is divided into multiple partitions. Different services cannot share partitions to ensure business independence.

The bandwidth of the two data centers tested by the customer is 155Mbit/s, the peak write bandwidth of an application is 9.8MB/s, the average written bandwidth is 300KB/s, the average write I/O size is 4KB, and the bandwidth utilization rate is 70%. Colleagues choose the primary and standby synchronous remote replication disaster recovery solution

A disaster recovery system can copy service data to a local or remote data center for protection.
In which scenarios the disaster recovery system cannot restore data? (Multiple Choice)