When using Huawei flash storage, if an engineer wants to calculate the effective write bandwidth of the disk, which of the following calculation formulas can be used?

When using Huawei flash storage, if an engineer wants to calculate the effective write bandwidth of the disk, which of the following calculation formulas can be used?
A . Hard disk effective write bandwidth = single disk write bandwidth x number of hard disks
B . Disk effective write bandwidth = single port bandwidth x number of ports
C . Hard disk effective write bandwidth = single disk write bandwidth x number of hard disks x (number of data disks / total number of disks)
D . Hard disk effective read bandwidth = single disk read bandwidth x number of hard disks x (number of system disks/total number of disks)

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Answer: C