In Huawei RAID 2.0+, is the description about chunck and extent correct?

• A.chunck is the smallest unit for LUN to apply for space from the storage pool and free up space
• B.The extent is the smallest unit for the storage pool to allocate resources from the hard disk domain
• C.chunck is the smallest unit of hot data statistics and migration (data migration granularity)
• D.The extent size of different storage pools can be different, but the extent size in the same storage pool is uniform

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Which of the following statements about the differences between DAS and SAN is incorrect?

• A.DAS applies to small and medium LANs that have general storage capacity requirements and only a small number of servers.
• B.SAN uses the Fibre Channel or iSCSI protocol and therefore offers better scalability.
• C.DAS and SAN are both external storage and can achieve storage resource sharing easily.
• D.SAN applies to mid-range and high-end storage application environments such as key databases, centralized storage, mass storage, backup, and disaster recovery.

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Clustered NAS can provide concurrent multi-node access of data to hosts.

• A.FALSE
• B.TRUE

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FCoE is a transmission protocol standard that encapsulates frames in FC in lossless Ethernet and is used to form storage networks Network.

• A.TRUE
• B.FALSE

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The OceanStor 6800 V3 frame itself can be configured with four controllers or only two controllers. If configured as dual control The power supply and BBU are fully configured, and the interface cards and controllers are all arranged in the upper row.

• A.TRUE
• B.FALSE

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