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Huawei

H13-629_V3.0 · Question #296

A company purchased a set of Huawei hybrid flash storage. The maximum read bandwidth that this storage product can provide is 3000MB. The planned configuration is: 48 600 GB, 15K SAS disks (single…

The correct answer is B. The maximum read bandwidth provided by the front-end link is 780 MB*2=1560 MB D. The effective read bandwidth provided by the hard disk = 40 MB*48 = 1920 MB. See the full explanation below for the reasoning.

Storage Solution Planning and Design

Question

A company purchased a set of Huawei hybrid flash storage. The maximum read bandwidth that this storage product can provide is 3000MB. The planned configuration is: 48 600 GB, 15K SAS disks (single disk read bandwidth is 40MB), controller A and controller B each have one FC port (8Gb, unidirectional bandwidth 780MB, bidirectional bandwidth 1300 IB) as the front-end business port connected to the host. In this scenario, which of the following methods of calculating bandwidth (theoretical value) are correct? (Multiple choice)

Options

  • AMaximum read bandwidth provided by the front-end link = 3000 MB
  • BThe maximum read bandwidth provided by the front-end link is 780 MB*2=1560 MB
  • CThe maximum read bandwidth provided by the front-end link is 1300 MB*2=2600 MB
  • DThe effective read bandwidth provided by the hard disk = 40 MB*48 = 1920 MB

How the community answered

(41 responses)
  • A
    5% (2)
  • B
    85% (35)
  • C
    10% (4)

Topics

#bandwidth calculation#FC port throughput#SAS disk performance#storage planning

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