VMware Cloud Foundation: Troubleshooting [V9.0] — Lesson 3: NSX edge, routing, transport nodes, tunnels, vSAN health, disk groups, object compliance, performance, and cross-domain connectivity

Learning Objectives

• Assess dependencies, controls, resilience, and the intended service outcome for NSX edge, routing, transport nodes, tunnels, vSAN health, disk groups, object compliance, performance, and cross-domain connectivity.
• Demonstrate the workflow and leave reproducible evidence in network-and-storage diagnostic worksheet.
• Recommend a preventive improvement after resolving an MTU mismatch producing intermittent overlay connectivity and storage symptoms.

Detailed Topics

• NSX edge
• Routing
• Transport nodes
• Tunnels
• VSAN health
• Disk groups
• Object compliance
• Performance
• And cross-domain connectivity
• Decision ownership, prerequisites, and acceptance evidence for NSX edge, routing, transport nodes, tunnels, vSAN health, disk groups, object compliance, performance, and cross-domain connectivity
• Relevant access, security, capacity, dependency, performance, recovery, and support considerations

Instructor Demonstration

The instructor builds a representative scenario for NSX edge, routing, transport nodes, tunnels, vSAN health, disk groups, object compliance, performance, and cross-domain connectivity, narrating each decision and showing how it contributes to a repeatable VCF troubleshooting practice that isolates faults across management, compute, network, storage, automation, and lifecycle layers without introducing uncontrolled change. The demonstration records network-and-storage diagnostic worksheet so learners can compare design intent with observable behavior.

Hands-On Exercise

Complete a guided task covering NSX edge, routing, transport nodes, tunnels, vSAN health, disk groups, object compliance, performance, and cross-domain connectivity. Establish a working baseline, reproduce “an MTU mismatch producing intermittent overlay connectivity and storage symptoms,” isolate the responsible configuration or dependency, apply a reversible fix, and update network-and-storage diagnostic worksheet with before-and-after proof.

1. Map the current workflow and mark where the expected result can first be observed.
2. Run the scenario while preserving timestamps, object identifiers, and relevant output.
3. Apply a reversible correction only after evidence supports the cause.
4. Retest the original case plus an unaffected case and update the handover record.

Scenario Analysis

• Clarify the service trigger, affected components and roles, prerequisites, and acceptable result for NSX edge, routing, transport nodes, tunnels, vSAN health, disk groups, object compliance, performance, and cross-domain connectivity.
• Compare at least two implementation or correction choices and identify which evidence would distinguish them.
• Decide how network-and-storage diagnostic worksheet should be reviewed, approved, retained, and handed to the next owner.

Troubleshooting Guidance

For a failure in NSX edge, routing, transport nodes, tunnels, vSAN health, disk groups, object compliance, performance, and cross-domain connectivity, separate access, configuration, compute, network, storage, integration, and timing causes. Compare the observed sequence with network-and-storage diagnostic worksheet; if “an MTU mismatch producing intermittent overlay connectivity and storage symptoms” is confirmed, document why broader changes were rejected.

Validation Checklist

• Prerequisites and role permissions for NSX edge, routing, transport nodes, tunnels, vSAN health, disk groups, object compliance, performance, and cross-domain connectivity are confirmed before execution.
• The observed result agrees with expected values documented in network-and-storage diagnostic worksheet.
• Exceptions are explained with evidence instead of being hidden by manual correction.
• The final record names the approver, monitoring point, and next improvement action.

Lesson Outcome

Learners can apply NSX edge, routing, transport nodes, tunnels, vSAN health, disk groups, object compliance, performance, and cross-domain connectivity, explain the decisions made, and defend the result with network-and-storage diagnostic worksheet.