The Wushan file system in Oceanstor 9000 uses object storage type, but it only uses object storage for data, and does not use object storage for metadata.

• A.True
• B.False

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A filesystem snapshot:

• A.does not replace the traditional backup in most cases,
• B.has no relation to the backup implementation at all.
• C.replaces backup to tape in most cases.
• D.does replace the traditional backup in most cases.

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In the Huawei dual-active disaster recovery solution, the peak write bandwidth of an application needs 10MB/s, the average write bandwidth needs 200KB/s, the average write I/O volume is 4KB, and the bandwidth utilization rate is 70%. So how much bandwidth does the application need to deploy synchronous remote replication?

• A.2.23MB/s
• B.10MB/s
• C.114.3Mbit/s
• D.200KB/s

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Regarding SmartMigration LUN information exchange, which of the following descriptions are correct? (Multiple choice)

• A.Before and after LUN information exchange, the data volume ID of the source LUN will change.
• B.After the LUN information is exchanged, the host will send data read and write requests to the LUN ID of the target LUN.
• C.Before and after LUN information exchange, the LUN ID of the source LUN remains unchanged.
• D.The LUN information exchange needs to stop business.

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Which performance indicators are covered by the routine inspection of an OceanStor 9000 system? (Multiple Choice)

• A.Node throughput
• B.Disk usage.
• C.CPU usage
• D.Memory usage

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