Dell-EMC
E20-816 · Question #44
A new EMC customer recently installed their first VMAX and a complete suite of EMC management tools. Their lead capacity planner attended training and has started monitoring the VMAX. You receive a…
The correct answer is A. I/O block size is very small. See the full explanation below for the reasoning.
Question
A new EMC customer recently installed their first VMAX and a complete suite of EMC management tools. Their lead capacity planner attended training and has started monitoring the VMAX. You receive a call and this person describes the measurements observed. During the period of heaviest workload, reported I/O rates on certain Fibre Channel ports is nearing 2,000/second but those ports only display about 10% utilization. What is the likely cause?
Options
- AI/O block size is very small
- BI/O block size is very large
- CStriped metavolumes report invalid IOPS
- DSequential prefetch skews throughput %
How the community answered
(53 responses)- A74% (39)
- B15% (8)
- C4% (2)
- D8% (4)
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