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Dell-EMC

E20-816 · Question #40

During Symmetrix VMAX performance analysis, you notice that a collection of VMAX devices has a front-end I/O rate that is much lower than its back-end I/O rate. What might be the reason for this?

The correct answer is A. Devices are RAID 5 protected. See the full explanation below for the reasoning.

Question

During Symmetrix VMAX performance analysis, you notice that a collection of VMAX devices has a front-end I/O rate that is much lower than its back-end I/O rate. What might be the reason for this?

Options

  • ADevices are RAID 5 protected.
  • BWorkload has a high percentage of read hits.
  • CFront-end ports are faster than the back-end ports.
  • DHost is striping the data across all of the devices.

How the community answered

(23 responses)
  • A
    70% (16)
  • B
    4% (1)
  • C
    17% (4)
  • D
    9% (2)

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