EMC Symmetrix Solutions Design Exam for Technology Architects : E20-326

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EMC Symmetrix Solutions Design Exam for Technology Architects Sample Questions:

1. Refer to the exhibit.

What is a characteristic of the proposed configuration recommended by TierAdvisor?

A) It will consume 6% less storage than the current configuration
B) It is unsuitable for use with FAST because the tier allocations add up to 100%
C) It will have 49% better response time than the current configuration
D) It will cost 2% less than the current configuration

2. You are designing a new VMAX array. The customer requires high performance for their random write-intensive application. Which RAID protection should you recommend?

A) RAID-6
B) RAID-S
C) RAID-1
D) RAID-5

3. You are designing an SRDF/A DSE solution. The production application is expected to generate approximately 1500 4 KB write operations every second. The DSE pool will have RAID 5 (3+1) devices residing on 600 GB 15K RPM FC disks.
What is the estimated number of disks required for DSE?

A) 200
B) 100
C) 60
D) 160

4. What is a valid FAST VP policy that would be recommended by Tier Advisor?

A) EFD 400GB RAID 5 (3+1) -10%
FC 15K 300GB RAID 1 - 100%
SATA 7200 1TB RAID 6 (6+2) - 100%
B) EFD 400GB RAID 5 (3+1) -30%
FC 15K 300GB RAID 1 - 30%
FC 15K 400 GB RAID 5 (3+1) - 20%
SATA 7200 1TB RAID 6 (6+2) - 30%
C) EFD 400GB RAID 5 (3+1) -30%
FC 15K 300GB RAID 1 - 30%
SATA 7200 1TB RAID 6 (6+2) - 30%
D) EFD 400GB RAID 5 (3+1) -10%
FC 15K 300GB RAID 1 - 50%
SATA 7200 1TB RAID 6 (6+2) - 40%

5. 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 large block, sequential write I/O.
What advice should be provided about RAID types as they relate to performance?

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

Solutions: