In the OceanStorV3 storage system, when the data status of the slave LUN is in which state, the remote replication supports the user to perform the master-slave switch operation? (Multiple choice)

Which of the following operations performed in a file system does not require quota check?

An enterprise purchased a set of Huawei hybrid flash storage system, and plans to configure NAS services to facilitate file storage and sharing among various departments. Which of the following planning and design are correct? (Multiple choice)

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

Both the production center and disaster recovery center of a bank use Huawei's hyper-converged storage products, and the two centers perform disaster recovery through asynchronous replication. The copied network type can support GE/10 GE/25 GE.