HyperMetro uses cross-site real-time data mirroring to ensure real-time data synchronization between the storage arrays at two sites. Upon receiving a write I/O, the storage array in a data center generates a write log. In the log, only address information is recorded, but data is not recorded. To ensure performance, log information is recorded in memory space capable of power failure protection.

Which of the following descriptions of OceanStor backup solutions are correct? (Multiple choice)

Based on full interconnection of data channels and communication channels, a clustered NAS system employs cluster volume management to manage storage space globally. All nodes in the cluster can access the same storage space using the same volume device name, ensuring block device access consistency.

In the HyperMletro active-active data center solution, which of the following statements about the static priority of the arbitration and anti-split-brain mode is incorrect?

Which of the following options does not belong to the software module included in the Huawei Oceanstor 9000 product? (Multiple choice)