EMC Expert - VMAX All Flash and VMAX3 : E20-807

  • Exam Code: E20-807
  • Exam Name: Expert - VMAX All Flash and VMAX3 Exam
  • Updated: Aug 05, 2026
  • Q & A: 75 Questions and Answers

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About EMC Expert - VMAX All Flash and VMAX3 : E20-807 Exam

Dell E20-807: Expert - VMAX All Flash and VMAX3 Solutions Exam topics

Candidates must know the topics before they start preparation because it will help them solve the problems. Our E20-807 practice test and E20-807 practice exams will include the following topics. These are covered in our E20-807 exam dumps:

VMAX All Flash and VMAX3 Performance (36%)

  • Describe the architecture of the VMAX All Flash and VMAX3 arrays from a performance perspective. Identify and explain VMAX All Flash and VMAX3 array configuration best practices for optimal performance.
  • Identify performance analysis methodology, relate performance measurements to I/O operations, identify workload characterization, and the implications of Little's Law
  • Performance analysis of cache and backend directors: Identify relevant metrics, investigate, and resolve performance issues
  • Perform performance-related administration tasks. Monitor the performance of VMAX All Flash/VMAX3 arrays and manage performance reports.
  • Identify and describe TimeFinder SnapVX and SRDF performance considerations
  • Performance analysis of frontend directors: Identify relevant metrics and solve performance issues

VMAX All Flash and VMAX3 Security Concepts (14%)

  • Plan, implement and manage user authentication and role-based permissions for Solutions Enabler and Unisphere for VMAX
  • Plan, implement and manage host-based access controls for VMAX AllFlash and VMAX3 arrays
  • Describe how exposure to data security vulnerabilities and the prevention of unauthorized change control operations are addressed in VMAX All Flash and VMAX3. Besides, describe how data that resides on the VMAX All Flash and VMAX3 can be secured using Data at Rest Encryption (D@RE) and how this impacts system operations and management.

VMAX All Flash VMAX3 Multi-site SRDF Solutions (16%)

  • Provide an overview of multi-site SRDF solutions
  • Describe Concurrent and Cascaded SRDF/Star failure scenarios and manage operations under normal and fault conditions
  • Describe dual personality RDF devices and configure Concurrent and Cascaded SRDF
  • Identify and describe the SRDF technologies that support SRDF/Star - SRDF/S consistency, SRDF/A multi-session consistency, and special SDDF and SRDF features

VMAX All Flash and VMAX3 SRDF/Metro Solutions (12%)

  • Describe SRDF/Metro and its benefits

VMAX All Flash and VMAX3 FAST.X Solutions (15%)

  • Describe the connectivity and provisioning requirements for external arrays. Verify connectivity and access to external array LUNs.
  • Describe the architecture of FAST.X and list the benefits and use cases
  • Explain the considerations for various use cases; for example, XtremIO, CloudArray, Data Migration, etc.
  • Configure and manage eDisks and describe the relationship between eDisks, Disk Group, Data Device, and SRPs

VMAX All Flash and VMAX3 Non-disruptive Data Migration (NDM) (7%)

  • Describe Non-Disruptive Migration from VMAX to a VMAX All-Flash Array or a VMAX3 Array
  • Perform Non-Disruptive Migration when using Unisphere for VMAX and/or using the SYMCLI

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Reference: https://education.emc.com/_content/_common/docs/exam_descriptions/E20_807_VMAX3_Solutions_Expert_Exam.pdf

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EMC E20-807 Exam Syllabus Topics:

SectionWeightObjectives
Management and Security20%- Solutions Enabler and SYMCLI usage
- Unisphere for VMAX navigation and administration
- Authentication, RBAC, and user permissions
- Host access controls and masking views
Performance Analysis and Optimization25%- I/O characteristics and performance metrics
- Configuration best practices for optimal performance
- Troubleshooting performance bottlenecks
- Front-end/back-end director performance analysis
Data Protection and Advanced Features15%- Remote replication: SRDF family overview
- System monitoring and health checks
- Local replication: TimeFinder SnapVX
- Connectivity and external storage integration
VMAX All Flash and VMAX3 Architecture20%- Front-end, back-end, and memory directors
- HYPERMAX OS architecture and components
- VMAX All Flash hardware differences
- FAST.X architecture, benefits, and use cases
Non-Disruptive Migration (NDM)20%- Implementation via Unisphere and SYMCLI
- NDM concepts and supported environments
- Monitoring and completing migration
- Migration planning and prerequisites

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