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EMC Symmetrix Solutions Expert Exam for Technology Architects Sample Questions:

1. How can a storage administrator restrict storage management access for any host that has not been granted explicit symacl rights?

A) Implement Symmetrix Array Authorization (symauth).
B) Restrict gatekeeper masking to only management hosts.
C) Remove default permissions from UnknwGrp access group.
D) Unmap the access logix database device from all non management FAs.

2. A new data warehouse will be hosted on an existing 4-engine VMAX array. The database server has 4 HBAs connected at 8Gb/s. Due to limited SAN switch ports only port 0 on each VMAX FA is connected - also at 8Gb/s.
The workload is expected to require at least 1700MB/s of reads @ 128KB I/O size. It must maintain performance in case of any major component failure in the host, switch or array. Assume that the existing workload on the VMAX does not exceed 350MB/s per port. Also assume that the ports can sustain up to 500MB/s without exceeding 70% utilization.
What is the best practice HBA to FA mapping to ensure the required performance of the data warehouse?

A) HBA0 -> E0 FA ports HBA1 -> F0 FA ports HBA2 -> G0 FA ports HBA3 -> H0 FA ports
B) HBA0 -> FA 7e0, 8e0, 9e0, 10e0 HBA1-> FA 5e0, 6e0, 11e0, 12e0 HBA0 -> FA 7h0, 8h0, 9h0, 10h0 HBA1-> FA 5h0, 6h0, 11h0, 12h0
C) HBA0 -> Engine 3 FA ports HBA1 -> Engine 4 FA ports HBA2 -> Engine 5 FA ports HBA3 -> Engine 6 FA ports
D) HBA0 -> E1 FA ports HBA1 -> F1 FA ports HBA2 -> G1 FA ports HBA3 -> H1 FA ports

3. Click on the calculator icon in the upper left corner. Refer to the exhibit.

You are designing the Symmetrix VMAX architecture for a DAS-to-SAN SQL Server migration. Currently all user databases reside on a single locally attached disk enclosure, mounted to "M:\". You have decided on RAID-1 protected 15,000 RPM drives for the new SQL environment.
Last week, you configured Perfmon to record the current IOPS load of the databases during the 8-hour business day, Monday thru Friday as shown in the exhibit. During an average business day, the transaction log processes 43 GB worth of data.
Following EMC best practices, which discount can be taken from the overall write IOPS, when calculating for the database writes?

A) 597
B) 989
C) 196
D) 392

4. A large customer has a formal Capacity and Performance Management (CPM) department. This customer's business users describe the environment as both good and challenged. They are acutely aware when there are performance short-falls or insufficient storage resources available. How would you categorize this Performance Management style?

A) Proactive Style
B) Casually Observant
C) Reactive Style
D) Actively Observant

5. When designing a VMware cluster, which VM storage adapter reduces CPU utilization and allows high I/O throughputs?

A) LSI Logic SAS
B) BusLogic Parallel
C) LSI Logic Parallel
D) Paravirtual SCSI

Solutions: