VMware vSAN: Fast Track [V7] — Lesson 4: Performance analysis, health service, logs, network diagnostics, disk failures, congestion, upgrades, backup considerations, troubleshooting, and handover

Learning Objectives

• Break down the prerequisites, components, roles, and decision points involved in Performance analysis, health service, logs, network diagnostics, disk failures, congestion, upgrades, backup considerations, troubleshooting, and handover.
• Complete a controlled activity for Performance analysis, health service, logs, network diagnostics, disk failures, congestion, upgrades, backup considerations, troubleshooting, and handover and capture vSAN incident playbook and operational acceptance pack.
• Challenge the result with resynchronization traffic masking an underlying network saturation problem, then justify the corrective action.

Detailed Topics

• Performance analysis
• Health service
• Logs
• Network diagnostics
• Disk failures
• Congestion
• Upgrades
• Backup considerations
• Troubleshooting
• And handover
• Decision ownership, prerequisites, and acceptance evidence for Performance analysis, health service, logs, network diagnostics, disk failures, congestion, upgrades, backup considerations, troubleshooting, and handover
• Relevant access, security, capacity, dependency, performance, recovery, and support considerations

Instructor Demonstration

Using realistic infrastructure, identities, and workloads, the instructor demonstrates Performance analysis, health service, logs, network diagnostics, disk failures, congestion, upgrades, backup considerations, troubleshooting, and handover. Checkpoints are captured in vSAN incident playbook and operational acceptance pack, with discussion of alternatives, side effects, and acceptance conditions.

Hands-On Exercise

Configure and test Performance analysis, health service, logs, network diagnostics, disk failures, congestion, upgrades, backup considerations, troubleshooting, and handover with representative infrastructure or application data. Use “resynchronization traffic masking an underlying network saturation problem” as the troubleshooting challenge, compare hypotheses, retest the affected path, and complete vSAN incident playbook and operational acceptance pack for review.

1. Record the starting state, assumptions, identities, topology, and expected outcome.
2. Execute the planned workflow and collect evidence at each material checkpoint.
3. Test one valid path, one boundary condition, and the stated failure scenario.
4. Document the correction, retest result, rollback option, and follow-up owner.

Scenario Analysis

• Clarify the service trigger, affected components and roles, prerequisites, and acceptable result for Performance analysis, health service, logs, network diagnostics, disk failures, congestion, upgrades, backup considerations, troubleshooting, and handover.
• Compare at least two implementation or correction choices and identify which evidence would distinguish them.
• Decide how vSAN incident playbook and operational acceptance pack should be reviewed, approved, retained, and handed to the next owner.

Troubleshooting Guidance

Diagnose Performance analysis, health service, logs, network diagnostics, disk failures, congestion, upgrades, backup considerations, troubleshooting, and handover by checking effective state, ownership, dependencies, health, logs, and recent changes. Use vSAN incident playbook and operational acceptance pack to locate the earliest divergence. Treat “resynchronization traffic masking an underlying network saturation problem” as a hypothesis until the same test passes after correction and under a boundary condition.

Validation Checklist

• The scope of Performance analysis, health service, logs, network diagnostics, disk failures, congestion, upgrades, backup considerations, troubleshooting, and handover is clear, including what is deliberately excluded from the test.
• Evidence in vSAN incident playbook and operational acceptance pack supports each material decision and outcome.
• A negative test demonstrates that controls reject or expose an invalid condition.
• Open risks, owners, due actions, and production safeguards are documented.

Lesson Outcome

Learners can apply Performance analysis, health service, logs, network diagnostics, disk failures, congestion, upgrades, backup considerations, troubleshooting, and handover, explain the decisions made, and defend the result with vSAN incident playbook and operational acceptance pack.