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

Pass E20-807 Exam Cram

Exam Code: E20-807

Exam Name: Expert - VMAX All Flash and VMAX3 Exam

Updated: Sep 03, 2026

Q & A: 75 Questions and Answers

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

VMAX All Flash and VMAX3 Security Concepts (14%)

  • Plan, implement and manage host-based access controls for VMAX AllFlash and VMAX3 arrays
  • Plan, implement and manage user authentication and role-based permissions for Solutions Enabler and Unisphere for VMAX
  • 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%)

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

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.
  • 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
  • Describe the architecture of FAST.X and list the benefits and use cases

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

  • Perform Non-Disruptive Migration when using Unisphere for VMAX and/or using the SYMCLI
  • Describe Non-Disruptive Migration from VMAX to a VMAX All-Flash Array or a VMAX3 Array
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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
FAST.X Solutions14%- FAST.X Architecture
  • 1. External array integration
  • 2. FAST.X concepts and components
- FAST.X Operations
  • 1. Performance optimization
  • 2. Storage tiering strategies
VMAX All Flash and VMAX3 Performance36%- Frontend Director Analysis
  • 1. Performance issue resolution
  • 2. Relevant metrics identification
- Cache and Backend Director Analysis
  • 1. Backend performance analysis
  • 2. Cache performance analysis
  • 3. Issue investigation and remediation
- Performance Analysis Methodology
  • 1. Little's Law implications
  • 2. Workload characterization
  • 3. Performance measurement and I/O operations
- Performance Architecture and Best Practices
  • 1. Array configuration best practices for optimal performance
  • 2. VMAX All Flash and VMAX3 architecture from a performance perspective
- Performance Administration
  • 1. Performance reporting
  • 2. Performance monitoring
- Replication Performance Considerations
  • 1. SRDF performance considerations
  • 2. TimeFinder SnapVX performance considerations
SRDF Three-Site and Metro Solutions22%- SRDF Metro
  • 1. Metro deployment considerations
  • 2. Active-active solutions
- Three-Site Replication
  • 1. Business continuity strategies
  • 2. SRDF three-site architectures
- Advanced SRDF Operations
  • 1. Configuration and management
  • 2. Troubleshooting and optimization
VMAX All Flash and VMAX3 Security Concepts14%- Data Protection
  • 1. Operational and management impacts of encryption
  • 2. Data at Rest Encryption (D@RE)
- Security Architecture
  • 1. Unauthorized change control prevention
  • 2. Data security vulnerability mitigation
Non-Disruptive Migration14%- Migration Execution
  • 1. Validation and cutover
  • 2. Migration procedures
- Migration Concepts
  • 1. Migration planning
  • 2. Non-disruptive migration architecture
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