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EMC E20-816 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Performance and Optimization | - Tuning and Best Practices - Workload Analysis |
| Storage Provisioning and Management | - Device Configuration Concepts - LUN Creation and Masking |
| Business Continuity Solutions | - Failover and Disaster Recovery Design - SRDF Replication Technologies |
| Troubleshooting and Administration | - System Monitoring Tools - Common Fault Isolation Techniques |
| Symmetrix Architecture and Components | - Cache and Back-end Design - Enginuity Operating Environment - Hardware Architecture Overview |
EMC Symmetrix Solutions Expert Exam for Technology Architects Sample Questions:
When setting up Symmetrix Access Control, what must be completed before all hosts have been granted Access Control rights (via the Unknown Group)?
- A. The Administrator Group must be setup using SymmWin.
- B. The license file must be registered using SymACL.
- C. The Administrator Group must be setup using SymCLI.
- D. The license file must be registered using SymCLI.
Correct Answer: A 🗳️
For a 2 engine VMAX, what is the minimum number of Enterprise Flash Drives required to ensure balanced performance across the backend excluding hot spares?
- A. 16
- B. 4
- C. 8
- D. 12
Correct Answer: A 🗳️
An existing 2-engine VMAX array has 192 x 450GB 15K Fibre Channel drives in a single Virtual Provisioning pool. Two Linux database hosts are connected to the array and both are running PowerPath.
Host oradb01 is connected to the E0 FA ports on each director and is meeting the customer performance SLA. Host oradb02 is connected to the G0 FA ports on each director - and for the past 3 days this host has been experiencing poor performance during peak activity in the afternoons.
What steps do you take to identify likely bottlenecks?
- A. Open a case with EMC Support and upload Oracle Statspack information
- B. Check the host for queued I/Os, use SPA to examine I/O size and utilization on the G0 FA ports
- C. Run iostat -x in order to compare I/O size and read/write ratio of the two hosts
- D. Use SMC to check for Virtual Pool alerts, use SPA to measure drive response times
Correct Answer: B 🗳️
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 "N:\". You have decided on RAID-5 protected 15,000 RPM drives for the new SQL database and RAID-1 for the transaction log.
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 87 GB worth of data.
Following EMC best practices, what is the minimum number of spindles that must be allocated for optimal transaction log performance?
- A. 10
- B. 4
- C. 8
- D. 2
Correct Answer: B 🗳️
The links between an R1/R2 pair are logically suspended and a half delete is performed on the R2 device. What describes the RDF pair configuration?
- A. Half
- B. Normal
- C. Suspended
- D. Duplicate
Correct Answer: A 🗳️
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