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 throughput on certain Fibre Channel ports is nearing
150,000 KB/second but those ports display only about 10% utilization. What is the likely cause?
A.
I/O block size is very small
B.
I/O block size is very large
C.
Striped metavolumes report invalid IOPS
D.
Sequential prefetch skews throughput %
Explanation: