PTR/INT Oracle Solaris 11 Internals — Lesson 4: DTrace, performance analysis, mdb, crash dumps, fault diagnosis, recovery and support escalation

Learning Objectives

• Assess design choices and operational ownership for dTrace, performance analysis, mdb, crash dumps, fault diagnosis, recovery and support escalation.
• Operate and validate dTrace, performance analysis, mdb, crash dumps, fault diagnosis, recovery and support escalation under normal, boundary, failure, and recovery conditions.
• Create a support handover covering monitoring, escalation, correction, and preventive improvement.

Detailed Topics

• DTrace
• performance analysis
• mdb
• crash dumps
• fault diagnosis
• recovery and support escalation
• Ownership, prerequisites, data, and acceptance criteria for dTrace, performance analysis, mdb, crash dumps, fault diagnosis, recovery and support escalation
• Security, control, integration, performance, recovery, compliance, and support implications

Instructor Demonstration

Demonstrate dTrace, performance analysis, mdb, crash dumps, fault diagnosis, recovery and support escalation within a Solaris 11 system investigated from kernel behavior through performance and crash evidence to a defensible root-cause conclusion. Use representative data and capture crash dump findings and recovery record so another practitioner can reproduce and verify the result.

Hands-On Exercise

Complete a controlled activity focused on dTrace, performance analysis, mdb, crash dumps, fault diagnosis, recovery and support escalation. Introduce a realistic case of kernel fault without clear root cause, isolate the cause, apply a reversible correction, and rerun the acceptance checks.

1. Record the requirement, environment, identities, dependencies, data, controls, and expected result.
2. Perform the workflow and capture course-specific evidence before and after each material change.
3. Test normal, boundary, failure, security, reconciliation, recovery, and operational conditions.
4. Document the root cause, correction, rollback, owner, support action, and next improvement priority.

Scenario Analysis

• Review the operating model, service objectives, support boundaries, and evidence-retention needs.
• Simulate kernel fault without clear root cause and assess detection, containment, recovery, and communication.
• Convert the findings into a prioritized corrective and preventive action plan.

Troubleshooting Guidance

When dTrace, performance analysis, mdb, crash dumps, fault diagnosis, recovery and support escalation does not produce the expected result, confirm scope, effective dates, identities, data context, dependencies, and recent changes. Review crash dump findings and recovery record before modifying configuration or data. Test one reversible hypothesis at a time, verify recovery, and confirm that the fix does not create a new control, security, performance, compliance, or integration defect.

Validation Checklist

• Prerequisites, ownership, data context, settings, and expected outcomes are documented.
• The result is reproducible and supported by crash dump findings and recovery record.
• Security, controls, data quality, integration, performance, recovery, compliance, and support conditions are reviewed.
• Exceptions, corrective action, rollback, approvals, monitoring, and handover are recorded.

Lesson Outcome

Learners can apply DTrace, performance analysis, mdb, crash dumps, fault diagnosis, recovery and support escalation in a realistic PTR/INT Oracle Solaris 11 Internals situation and defend the result with course-specific evidence.