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Category: E20-816

Exam E20-816: Symmetrix Solutions Expert Exam for Technology Architects

How should all the devices be configured on the target Symmetrix VMAX storage array?

You are designing a new Symmetrix VMAX storage array to replace a client’s Symmetrix DMX4.
Performance data is captured and examined for the DMX4. During the discovery phase, the client
states that their critical business application has increased response times when establishing
SRDF for 20 logical volumes. Examination of the current configuration of the logical volumes used
for the application reveals the following:
– Ten 4way meta volumes at 200 GB
– Five 8 way meta volumes at 472 GB
– Five logical volumes at 59 GB
Performance analysis shows that the device write pending counts for the five logical volumes at 59
GB are higher than other volumes used by the application.
The client expects migration events to require a complete establishment of their DR environment
logical volumes. How should all the devices be configured on the target Symmetrix VMAX storage
array?

Which RAID level(s) should be used for the control files, data files, redo logs and archive logs?

A new Symmetrix array is being designed for an Oracle data warehouse. The workload is
expected to be primarily reads for batch reporting. The customer wants to maximize usable
capacity of the array and follow best practices for RAID types to optimize performance. Which
RAID level(s) should be used for the control files, data files, redo logs and archive logs?

What is the likely cause?

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?


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