When the alarm information can be collected normally, the alarm analysis method is suitable for locating any fault.

In Huawei OceanStor hybrid flash storage, data, logs, and modification information of a database application are stored in main LUDN1, main LUN2, and main LUN3, respectively, and asynchronous remote replication is created for the three main LUNs. When the primary LUIN2 fails, the primary storage system can be used to restore the data of the primary storage system, and the database can be started normally through the primary storage system.

In Huawei's storage system, ( ) is an operation and maintenance tool that integrates cloud computing, servers, and storage.

Huawei OceanStor 9000 uses Erasure code technology to protect data. If a site has 6 nodes, and the customer wants to ensure that data can be recovered even when 3 disks are damaged by one stripe, the redundancy protection levels that can be used are: (Multiple Choice)

During the read operation of the Thin LUN by the host, what technology is used to read data from the corresponding actual storage space in the storage pool?