Is the Active-Active DR Solution feasible for the scenario where the existing third-party storage system and a newly purchased OceanStor 5300 V3 are deployed in the two data centers separately?

• A.No. An Active-Active DR Solution requires at least one set of OceanStor 5800 V3 or higher-level storage,
• B.No, An Active-Active DR Solution requires that two OceanStor 2600 V3 or higher-level storage devices be separately deployed in the two centers.
• C.No. An Active-Active DR Solution requires at least one set of OceanStor 5600 V3 or higher-level storage.
• D.Yes. All conditions required for the solution are met.

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A customer unit has purchased nine OceanStor9000 storage nodes. When planning and deploying, it requires any three hard disks and one storage node to fail, which does not affect data integrity, and the overall storage space utilization rate is not less than 80%. Which of the following balance ratio appropriate?

• A.8+1
• B.6+3
• C.16+3:1
• D.6+3:1

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To ensure data reliability, an enterprise establishes a remote replication pair between the primary LUN at site A and the secondary LUN at site B.
Which of the following statements about the data relationship between the pair status and the primary and secondary LUNs are correct? (Multiple choice)

• A.If the link used for remote replication is disconnected or the primary LUN or secondary LUN of remote replication fails, the Pair operating status is "split".
• B.If the engineer manually disconnects the pair relationship between the master LUN and the slave LUN, the pair is running in "split" state at this time, and the data replication between the master LUN and the slave LUN is suspended
• C.When the Pair status is "synchronizing", the slave LUN cannot be read or written at this time
• D.When the Pair operating status is "normal", it means that the data of the primary LUN and the secondary LUN are successfully synchronized.

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Which of the following statements is true.
A) An eDevLUN is always on a third party device?
B) A mirror copy should come from a different domain than the local LUN?

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

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When configuring active and standby disaster recovery, which of the following conditions must be met for the LUNs on the primary and standby arrays?

• A.Only the size of the backup LUN is the same as that of the primary LUN.
• B.The size of the secondary LUN must be greater than or equal to the primary LUN.
• C.The backup side needs to be configured with the same type of hard disk, and the size of the backup side LUN must be greater than or equal to the primary side LUN.
• D.The backup side needs to be configured with the same RAID level, and the size of the backup side LUN must be the same as that of the primary side LUN.

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