When can the use of SmartThin LUNS be considered? (Multiple Choice)

• A.If the operating system supports re-thinning.
• B.When overprovisioning can easily be solved by adding disks quickly.
• C.For LUNS with unpredictable amounts of writes to them.
• D.If the amount of free space greatly exceeds the required LUN capacity.

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How does HDFS Plugin store the Hadoop service data directly into the OceanStor 9000?

• A.HDFS Plugin is deployed on Hadoop nodes and the Hadoop client and is used to convert the HDFS protocol-based access requests to CIFS protocol-based access requests.
• B.HDFS Plugin is deployed on Hadoop nodes and is used to convert the HDFS protocol-based access requests to CIFS protocol-based access requests.
• C.HDFS Plugin is deployed on the Hadoop client and is used to convert the HDFS protocol-based access requests to NFS protocol-based access requests,
• D.HDFS Plugin is deployed on Hadoop nodes and the Hadoop client and is used to convert the HDFS protocol-based access requests to NFS protocol-based access requests,

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Which of the following statements about the intelligent load balancing feature of Huawei OceanStor 9000 is false?

• A.Performance is balanced among all nodes. Capacity cannot be balanced among all nodes.
• B.Huawei OceanStor 9000 provides load balancing based on round robin, CPU usage, or node connection count.
• C.Load balancing policies can be based on CPU usage, memory usage, bandwidth usage, node connection count, and/or node capability.
• D.Nodes can be grouped into zones. An independent load balancing policy and an independent domain name can be configured for each zone.

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Neither online nor offline software version upgrade of Huawei OceanStor 9000 affects device management.

• A.TRUE
• B.FALSE

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What mechanism is used for I/O traffic control of SmartQoS to control traffic so as to achieve the performance control objectives for IOPS or bandwidth?

• A.SHA256
• B.DHT
• C.Token bucket
• D.SHA1

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