In the Huawei backup solution, Server-Free backup networking involves snapshot technology, which component initiates the snapshot creation command?

A storage device of an enterprise generates a fault alarm. After engineer A arrives at the customer site, he prepares to collect storage device information and pass it to R&D for further analysis.
What collection methods can Engineer A use to collect information? (Multiple choice)

Suppose that a customer that adopts the Huawei Network-Layer Full-Sized Snapshot Solution creating a snapshot for the source volume at 9:00 am, and the snapshot finishes being created at 9:10 am. During the snapshot creation, some data is written to the source volume.
Based on the preceding conditions, which of the following statements is correct?

The methods for applying for activation of Huawei Oceanstor 9000 License include authorization activation and password activation.

Huawei's SmartPartition feature supports not multiple options for setting the same read and write cache capacity for partitions. Which of the following about the impact of cache capacity on services with different features are correct? (Multiple choice)