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EMC E20-326 Exam Syllabus Topics:

EMC Symmetrix Solutions Design Exam for Technology Architects Sample Questions:

Question 1

You have been assigned to gather performance data for a Microsoft SQL server database that will be migrated to a Symmetrix VMAX. Which Perfmon counter must be measured prior to designing a disk layout?

A. Physical Disk\Disk Writes/sec
B. Logical Disk\Avg. Disk Bytes/sec
C. Physical Disk\Avg. Disk sec/Write
D. Logical Disk\Disk Write Bytes/sec

Question 2

A TimeFinder/Snap of production data must be recreated in a four hour cycle throughout the day. Which change tracker report will provide the best data for modeling a solution for the twenty-four hour period?

A. Delta report reset every twenty four hours
B. SUM report over four hours
C. SUM report over twenty four hours
D. Delta report reset every four hours

Question 3

A customer has a Symmetrix VMAX storage array configured with 99.9% utilization of raw storage capacity. The frame is configured with storage pools as shown in the exhibit. Note the following:
Pool P00400GE00R5 is 400 GB SSD RAID 5
Pool P02002TS72R6 is 2000 GB SATA RAID 6
Pool P01450GF15R1 is 450 GB FC 2-Way-Mir
SRDF/A replication suspends regularly
----

Investigation shows that write pending values are too high for the R1 volumes. I/O requirements for the DSE pool are computed. If DSE is used, where and how should the pool be built?

A. Drain selected EFD TDAT volumes in 12 RAID sets Delete selected EFD TDAT volumes
B. Drain selected FC TDAT volumes in 80 RAID sets Delete selected FC TDAT volumes Create 2-way-mir volumes on FC disks for DSE pool
C. Drain selected SATA TDAT volumes in 10 RAID sets Delete selected SATA TDAT volumes Create 2-way-mir volumes on SATA disks for DSE pool
D. Create 2-way-mir volumes on EFD disks for DSE pool Drain selected FC TDAT volumes in 80 RAID sets Delete selected FC TDAT volumes Create 3+1 R5 volumes on FC disks for DSE pool

Question 4

You are designing an SRDF/S solution. The workload profile is:
Total I/Os per second = 10000
Write % = 25
Read block size = 8 KB
Write block size = 8 KB
Network bandwidth can be purchased in increments of single T3 (45 Mb/s) links. Data compression is not in use. How many T3s links would you recommend?

A. 8
B. 6
C. 2
D. 4

Question 5

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 you recommend?

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

Solutions: