VMware vSAN: Install, Configure, Manage [V8] — Lesson 2: Enabling vSAN, claiming disks, configuring networks, fault domains, stretched-cluster concepts, data services, encryption, deduplication and compression considerations

Learning Objectives

• Identify the architecture and operational choices that shape Enabling vSAN, claiming disks, configuring networks, fault domains, stretched-cluster concepts, data services, encryption, deduplication and compression considerations.
• Run normal and boundary tests and record the outcome in cluster enablement evidence and network-health validation.
• Separate root cause from symptom when investigating vSAN traffic traversing a vmkernel interface with inconsistent MTU.

Detailed Topics

• Enabling vSAN
• Claiming disks
• Configuring networks
• Fault domains
• Stretched-cluster concepts
• Data services
• Encryption
• Deduplication and compression considerations
• Decision ownership, prerequisites, and acceptance evidence for Enabling vSAN, claiming disks, configuring networks, fault domains, stretched-cluster concepts, data services, encryption, deduplication and compression considerations
• Relevant access, security, capacity, dependency, performance, recovery, and support considerations

Instructor Demonstration

The instructor configures and tests Enabling vSAN, claiming disks, configuring networks, fault domains, stretched-cluster concepts, data services, encryption, deduplication and compression considerations within a scenario aimed at a healthy vSAN 8 cluster with validated hardware, correctly claimed devices, suitable storage policies, resilient data placement, monitored performance, and recoverable operations. The walkthrough contrasts a valid setup with a flawed one and uses cluster enablement evidence and network-health validation to make the difference explicit.

Hands-On Exercise

Configure and test Enabling vSAN, claiming disks, configuring networks, fault domains, stretched-cluster concepts, data services, encryption, deduplication and compression considerations with representative infrastructure or application data. Use “vSAN traffic traversing a vmkernel interface with inconsistent MTU” as the troubleshooting challenge, compare hypotheses, retest the affected path, and complete cluster enablement evidence and network-health validation for review.

1. Confirm scope, access, sample workloads, and acceptance criteria.
2. Perform the configuration or operation using a controlled sequence.
3. Inspect outputs and downstream effects rather than relying on task status alone.
4. Close with a support note, preventive action, and reproducible validation step.

Scenario Analysis

• Clarify the service trigger, affected components and roles, prerequisites, and acceptable result for Enabling vSAN, claiming disks, configuring networks, fault domains, stretched-cluster concepts, data services, encryption, deduplication and compression considerations.
• Compare at least two implementation or correction choices and identify which evidence would distinguish them.
• Decide how cluster enablement evidence and network-health validation should be reviewed, approved, retained, and handed to the next owner.

Troubleshooting Guidance

When Enabling vSAN, claiming disks, configuring networks, fault domains, stretched-cluster concepts, data services, encryption, deduplication and compression considerations produces an unexpected result, reproduce the issue with the same scope, identity, workload, and time context. Inspect cluster enablement evidence and network-health validation, test whether “vSAN traffic traversing a vmkernel interface with inconsistent MTU” explains the evidence, apply the smallest reversible correction, and retest an unaffected path for regression.

Validation Checklist

• The scope of Enabling vSAN, claiming disks, configuring networks, fault domains, stretched-cluster concepts, data services, encryption, deduplication and compression considerations is clear, including what is deliberately excluded from the test.
• Evidence in cluster enablement evidence and network-health validation 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 Enabling vSAN, claiming disks, configuring networks, fault domains, stretched-cluster concepts, data services, encryption, deduplication and compression considerations, explain the decisions made, and defend the result with cluster enablement evidence and network-health validation.