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Exam E20-807 topic 1 question 55 discussion

Actual exam question from Dell's E20-807
Question #: 55
Topic #: 1
[All E20-807 Questions]

Performance analysis on VMAX3 FE ports have shown that a large number of QFULL responses were returned to their best performing hosts. However, other hosts suffered from high response times.
What needs to be configured in order to lower the high response times?

  • A. Decrease the queue depth of the poor performing hosts
  • B. Increase the queue depth for all hosts
  • C. Set similar queue depths for all hosts
  • D. Increase the queue depth of the best performing hosts
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Suggested Answer: A 🗳️
Reference:
https://thesanguy.com/2012/09/25/san-performance-metrics/
by Aveena91 at Dec. 9, 2020, 9:53 a.m.

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Aveena91
4 years, 1 month ago
correct answer C: In a configuration with multiple initiators (hosts), all hosts should have similar queue depths. This prevents hosts with small queue depths from being starved by hosts with large queue depths.
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