CL170 – OpenStack Administration: Control Plane Management — Lesson 3: Storage, High Availability, TLS, Certificates, Control Plane, and Data Plane

Learning Objectives

• Evaluate integration, security, resilience, performance, and exceptions affecting storage resources, high availability, and TLS.
• Apply control plane and data plane while preserving reviewable technical evidence.
• Recognize and correct the condition where the implementation succeeds normally but fails during dependency loss, scale, policy enforcement, or recovery.

Detailed Topics

• storage resources: apply the concept to the course scenario, identify dependencies and controls, and record objective evidence of the result.
• high availability: apply the concept to the course scenario, identify dependencies and controls, and record objective evidence of the result.
• TLS: apply the concept to the course scenario, identify dependencies and controls, and record objective evidence of the result.
• control plane: apply the concept to the course scenario, identify dependencies and controls, and record objective evidence of the result.
• data plane: apply the concept to the course scenario, identify dependencies and controls, and record objective evidence of the result.

Instructor Demonstration

The instructor demonstrates storage, high availability, tls, certificates, control plane, and data plane by tracing architecture, commands, configuration, system messages, and evidence. The walkthrough tests how the implementation succeeds normally but fails during dependency loss, scale, policy enforcement, or recovery and explains how to isolate the cause without masking related issues.

Hands-On Exercise

Introduce a realistic boundary condition and test corrective behavior for Storage, High Availability, TLS, Certificates, Control Plane, and Data Plane and add the verified result to the control-plane health assessment, service configuration records, connectivity evidence, and recovery runbook.

1. Confirm scope, versions, access, dependencies, assumptions, and acceptance criteria.
2. Perform the workflow while recording commands, configuration, output, events, and decisions.
3. Test the normal path and one course-specific exception or boundary condition.
4. Retest the correction and document rollback, ownership, and follow-up actions.

Scenario Analysis

• Identify which dependency most strongly influences storage resources in the stated scenario.
• Compare two approaches for control plane and explain the security, reliability, performance, and support trade-offs.
• Decide what evidence must be retained in the control-plane health assessment, service configuration records, connectivity evidence, and recovery runbook before operational acceptance.

Troubleshooting Guidance

Begin with the first observable difference from the expected result. Check integration, security, boundary conditions, resilience, and performance separately, then correlate logs, events, commands, metrics, and configuration history. Treat the assumption that the implementation succeeds normally but fails during dependency loss, scale, policy enforcement, or recovery as a hypothesis until a reproducible retest confirms the cause.

Validation Checklist

• The required integration, security, boundary conditions, resilience, and performance were checked and recorded.
• The normal path and a course-specific exception were tested.
• The control-plane health assessment, service configuration records, connectivity evidence, and recovery runbook links conclusions to commands, configuration, logs, metrics, or other objective evidence.
• Corrective actions, rollback, ownership, and handover notes are complete.

Lesson Outcome

Learners can apply Storage, High Availability, TLS, Certificates, Control Plane, and Data Plane, explain the observed platform behavior, and support the result with a reviewable control-plane health assessment, service configuration records, connectivity evidence, and recovery runbook.