EMC E20-816 Exam : Symmetrix Solutions Expert Exam for Technology Architects

  • Exam Code: E20-816
  • Exam Name: Symmetrix Solutions Expert Exam for Technology Architects
  • Updated: Sep 13, 2026
  • Q & A: 156 Questions and Answers

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EMC E20-816 Exam Syllabus Topics:

SectionObjectives
Symmetrix / VMAX Architecture Fundamentals- Symmetrix hardware architecture and components
  • 1. Back-end and front-end connectivity
    • 2. Director and cache architecture
      - Storage array concepts and configuration
      • 1. RAID configurations and protection schemes
        • 2. Device types and provisioning concepts
          SRDF and Replication Technologies- SRDF fundamentals
          • 1. SRDF modes (Synchronous, Asynchronous, Adaptive Copy)
            • 2. Consistency groups and failover concepts
              - Remote replication operations
              • 1. Failover and failback procedures
                • 2. Disaster recovery planning
                  Storage Provisioning and Management- Device masking and mapping
                  • 1. Storage groups and initiator management
                    • 2. LUN provisioning workflows
                      - Performance and capacity management
                      • 1. Cache optimization concepts
                        • 2. Performance monitoring tools
                          Troubleshooting and Advanced Concepts- System diagnostics and error handling
                          • 1. Hardware failure analysis
                            • 2. Common Symmetrix alerts and logs
                              - Advanced replication and recovery scenarios
                              • 1. Complex SRDF recovery procedures
                                • 2. Business continuity strategies

                                  EMC Symmetrix Solutions Expert Exam for Technology Architects Sample Questions:

                                  Question #1

                                  Within a VMAX storage environment, what would be a benefit of implementing OFA (Oracle Flexible Architecture) supporting an Oracle database application environment?

                                  • A. Enables multiple versions of Oracle to run simultaneously
                                  • B. Ensures optimal performance across multiple Oracle instances
                                  • C. Ensures recoverable instances on the target host
                                  • D. Enables restartable instances after an SRDF split
                                  Reveal Solution  Discussion  0

                                  Correct Answer: A  🗳️

                                  Question #2

                                  A colleague is demonstrating the VMAX virtual LUN migration feature. They configure four test devices to move from FC RAID 5 volumes to SATA RAID 6 volumes and start the migration. The colleague reports the LUN migration moves very slowly and appears to stop during peak processing times.
                                  What is the likely cause of the issue?

                                  • A. FAST VP is interfering with virtual LUN migration processes.
                                  • B. The VMAX is reaching system write pending limits.
                                  • C. They are attempting to migrate too many volumes at once.
                                  • D. The target volumes are the same size as the source volumes.
                                  Reveal Solution  Discussion  0

                                  Correct Answer: B  🗳️

                                  Question #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, what is the minimum number of spindles that must be allocated for optimal transaction log performance?

                                  • A. 10
                                  • B. 4
                                  • C. 6
                                  • D. 2
                                  Reveal Solution  Discussion  0

                                  Correct Answer: D  🗳️

                                  Question #4

                                  A new data warehouse will be hosted on an existing 4-engine VMAX array. The database server has 4 HBAs connected at 4Gb/s. Due to limited SAN switch ports only port 0 on each VMAX FA is connected - also at 4Gb/s.
                                  The workload is expected to require at least 2300MB/s of reads at 128KB I/O size and 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 100MB/s per port and assume that the ports can sustain up to 300MB/s without exceeding 70% utilization.
                                  What is the minimum number of FA ports needed to spread the workload evenly across all 4 VMAX engines and meet the above performance requirements?

                                  • A. 16 FA ports, 4 per director
                                  • B. 16 FA ports, 4 per engine
                                  • C. 24 FA ports, 3 per director
                                  • D. 12 FA ports, 3 per engine
                                  Reveal Solution  Discussion  0

                                  Correct Answer: B  🗳️

                                  Question #5

                                  Refer to the exhibit.

                                  A company plans to deploy a two engine Symmetrix VMAX array in their VMware vSphere environment. The ESXi hosts will be connected to the VMAX array over a FC SAN. What is the recommended best practice when zoning an ESXi host with two HBAs to the VMAX?

                                  • A. HBA 1 to Port E0 on Odd (7) Director HBA 1 to Port E1 on Odd (7) Director HBA 2 to Port G0 on Even (10) Director HBA 2 to Port G1 on Even (10) Director
                                  • B. HBA 1 to Port E0 on Odd (7) Director HBA 1 to Port E0 on Even (8) Director HBA 2 to Port E0 on Odd (9) Director HBA 2 to Port E0 on Even(10) Director
                                  • C. HBA 1 to Port E0 on Odd (7) Director HBA 1 to Port E0 on Even (8) Director HBA 2 to Port G0 on Odd (7) Director HBA 2 to Port G0 on Even (8) Director
                                  • D. HBA 1 to Port E0 on Even (8) Director HBA 1 to Port E0 on Even (10) Director HBA 2 to Port E0 on Odd (7) Director HBA 2 to Port E0 on Odd (9) Director
                                  Reveal Solution  Discussion  0

                                  Correct Answer: D  🗳️

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