During a SmartMigration task. (Multiple Choice)

• A.Dual write prevents data loss
• B.Data is replicated from source to target LUN
• C.Services should be stopped to prevent data loss
• D.I/O to the source LUN is halted

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Which of the following statements about SmartQoS is true:
A) Lower-priority I/O can be rejected in favor of higher-priority I/O?
B) SmartQoS uses a queuing system for I/O requests?

• A.Both statements are true.
• B.Statement A is false and Statement B is true.
• C.Both statements are false.
• D.Statement A is true and Statement B is false.

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As Huawei Oceanstor 9000 adopts centralized technology, Wushan distributed file system has no performance bottleneck. As the number of nodes increases, storage capacity and computing power increase linearly, and finally provide users with linearly increasing bandwidth and concurrency.

• A.False
• B.True

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What type of LUN is compatible with SmartErase?

• A.Snapshot LUN
• B.Thin LUN
• C.Thick LUN
• D.Mirror LUN

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In the scenario where the front-end uses GE network, and the back-end uses 10GE network, how are ports connected to the networks?

• A.Ports A0-0 and A0-1 connect to the front-end GE network, and ports B3-0 and B3-1 connect to the back-end 10GE network.
• B.Ports A0-0 and B3-0 connect to the front-end GE network, and ports A0-1 and B3-1 connect to the back-end 10GE network.
• C.Ports A0-0 and A0-1 connect to the back-end 10GE network, and ports B3-0 and B3-1 connect to the front-end GE network.
• D.Ports A0-0 and B3-1 connect to the front-end GE network, and ports AD-1 and B3-0 connect to the back-end 10GE network,

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