In the HyperMetro dual-active data center solution, the arbitration server mode has higher reliability than the static superior mode, which can ensure continuous business operation under various single-point failure scenarios. Therefore, Huawei's dual-active solution recommends the use of the arbitration server mode.

The IntoTier feature is also called automatic hierarchical storage, which stores files on storage devices with the same performance according to file attributes, and realizes automatic migration of files between storage devices.

A storage cluster has five P36 nodes, using the front and back 10GE networking mode. The front-end business network provides two 10GE interfaces.
When deploying distributed file system services and object storage services in a mixed deployment, the number of IP addresses that need to be planned for the front-end business network is:

In a large and medium-sized database application, files such as data, logs, and modification records are stored in the associated LUN1, LUN2, and LUN3 respectively, and remote replication tasks 1, 2, and 3 are created respectively, and the engineer copies these three remotely The task is added to the consistency group.
In this case, which of the following statements are correct? (Multiple choice)

Compared with traditional RAID algorithms, the erasure code redundancy technology used by Huawei OceanStor 9000 provides higher reliability and more flexible redundancy policies.
Which of the following statements about the erasure code N+M principle is false?