Which of the following description will cause value-added service failure? (Multiple choice)

• A.Abnormal disconnection of slave LUN
• B.The remote storage device storage pool is offline
• C.Inconsistent replication links between storage devices
• D.The serial port cannot log in to the remote storage device

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Huawei OceanStor active-active disaster recovery solution supports heterogeneous storage, Therefore, an OceanStor V3 storage system and a Huawei certified third-party storage system can work in active-active mode through HyperMirror.

• A.FALSE
• B.TRUE

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When the Smartvirtualization feature is used to host external LUNs in a heterogeneous storage system, and the read I/O request for external LUN data does not go through the heterogeneous storage system, where might the data exist?

• A.In the metadata volume of the local LUN
• B.In the data volume of the local LUN
• C.Metadata volume of eDevLUN
• D.In the Cache of eDevLUN

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Geo-Redundant Solution is implemented based on HyperMetro.

• A.FALSE
• B.TRUE

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A TV station uses a Huawei hybrid flash storage device in FC networking to store videos. When using it recently, occasionally the video screen freezes. Engineer A will troubleshoot the fault after arriving at the site. Which of the following is the correct troubleshooting method? (Multiple choice)

• A.Check whether there is a RAID group degradation alarm
• B.Check the open status of the client firewall port
• C.First check whether the client status is normal, and whether the resource is tight and causing the freeze
• D.Check the storage device failure alarm indicator

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