Before deploying and implementing storage devices, you need to plan and design storage solutions. Which of the following options should be performed during the planning and design process? (Multiple choice)

• A.Storage system upgrade planning
• B.Storage network segment planning
• C.Confirm whether the computer room provides AC or DC power
• D.Confirmation of compatibility of operating system and storage

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In an OceanStor V3 populated with a number of SSDs, which of the following statements about SmartCache is/are true? (Multiple Choice)

• A.SmartCache and SmartPartitioning are mutually exclusive.
• B.SmartCache and SmartQOS are mutually exclusive. A minimum of 1 SSD needs to be added to each SmartPartition.
• C.SmartCache uses partitions isolated from each other.
• D.In a situation with 4 controllers, SmartCache would create at least 4 SmartCache pools and 2 SmartCache partitions.

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Which of the following storage nodes will configure an SSD as a read cache by default? (Multiple choice)

• A.CT72
• B.P25
• C.P12
• D.C36

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Which quota types are supported by the InfoAllocator feature of Huawei OceanStor 9000? (Multiple Choice)

• A.Capacity quota
• B.File quantity quota
• C.Calculation quota
• D.Mandatory quota

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Compared with traditional RAID algorithms, the erasure code redundancy technology provides higher reliability and more flexible redundancy policies.
Which of the following statements about the working principle of erasure code is false?

• A.In erasure code storage mode, a concurrent failure of M-1 disks is tolerated at most.
• B.Data to be written is divided into N data blocks of the same size.
• C.N+M data blocks are concurrently stored to different nodes.
• D.The erasure code algorithm calculates M parity blocks for every N consecutive data blocks. (The value of N is smaller than that of M.)

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