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EMC Symmetrix Solutions Design Exam for Technology Architects Sample Questions:

1. A customer plans to configure their new Symmetrix VMAX 20K. They want your advice on how to configure a storage pool. This new storage pool will handle random write I/O
What should be your advice about RAID types as they relate to performance?

A) RAID type does not matter since everything in the VMAX goes through cache.
B) Use RAID 5 because it can be more efficient for random writes than RAID 1.
C) Use RAID 1 because RAID 5 and RAID 6 will have a higher write penalty.
D) Use RAID 6 because both RAID 1 and RAID 5 have a higher write penalty.

2. What is best practice for binding thin devices in a FAST VP environment?

A) Bind all devices to a thin pool within the second highest tier.
B) Bind all devices to a thin pool within the lowest tier available.
C) Bind all devices to a pool within the highest tier available.
D) Bind thin devices only to pools that show sufficient Pool Reserved Capacity.

3. You are designing a Symmetrix VMAX Virtual Provisioning solution for a VMware vSphere environment. Storage allocation must be guaranteed for some mission critical virtual machines.
Which format should be recommended when creating virtual disks for these mission critical virtual machines?

A) eagerzeroedthick
B) zeroedthick
C) 2gbsparse
D) thin

4. A proposed SRDF/S solution was modeled with BCSD using host-based data. The BCSD model assumed two-engine VMAX arrays with SRDF Fibre ports. The Compressed Throughput chart shows that the available throughput is greater than the peak throughput. The Volume Exceptions table lists ten devices.
What should be recommended?

A) Use three-engine VMAX arrays
B) Turn off software compression on the remote adapters
C) Change the application layout
D) Provide more bandwidth

5. Refer to the Exhibit.

The illustration shows the workload characteristics of a DMX which is due to be upgraded to a VMAX. Which conclusion can you draw?

A) Front-end IOs outnumber the back-end IOs, because some IOs are satisfied in cache
B) Front-end and back-end IOs are unrelated to each other
C) Front-end IOs outnumber the back-end IOs, because there were a lot of clone operations being performed
D) Front-end IOs outnumber the back-end IOs, because the devices involved are R2 targets

Solutions: