When configuring a backup data retention policy, you must consider the retention period, retention cycles, and number of write streams.

When the Oceanstor 9000 balance strategy switch is turned off, in the scenario of expanding nodes, deleting or disabling nodes, adding hard disks, hard disk failures, and slow disks. The system does not generate a balancing task, but if the node is deleted and the balancing strategy switch is turned on, the system will automatically complete the data balancing.

Which of the following statements are correct about the business characteristics of Huawei Oceanstor 9000NFS? (Multiple choice)

HyperMirror can be used for: (Multiple Choice)

Which of the following backup media do not support deduplication? (Multiple Choice)