1Z0-1072-25 Question 41
Single answerYour team has received an OCI alert about a forthcoming infrastructure maintenance event that will affect your compute instances next week. Some of these compute instances use shapes that support live migration, while others use shapes equipped with local NVMe storage. You need to ensure minimal downtime for all production services during this required maintenance. Which action should you take to meet these requirements?
- A
Rely on automatic migration for all instance shapes, including those with local NVMe. No reboots or intervention are necessary.
- B
Use live migration for shapes that support it, and schedule a reboot for instances on shapes with local NVMe storage.
- C
Rebuild each instance on new shapes prior to maintenance to avoid any downtime.
- D
Convert all existing shapes to bare metal instances so that the maintenance event is automatically bypassed.
Show answer and explanation
Correct answer: B
Explanation
In OCI, maintenance events may automatically migrate compute instances on shapes that support live migration, minimizing downtime. However, instances leveraging local NVMe storage typically must be rebooted within the maintenance window because live migration is unavailable for those shapes. Refer to Oracle Cloud Infrastructure maintenance documentation for details on supported live migration shapes, scheduling reboots, and preparing services for the maintenance window.
- A. Incorrect.
Incorrect. While some shapes do support automatic live migration, shapes with local NVMe storage generally require a reboot. You cannot rely solely on automatic migration for instances with local NVMe.
- B. Correct.
Correct. If the shape supports live migration, Oracle automatically handles the migration with minimal disruption. Instances on shapes with local NVMe storage typically require a reboot during the scheduled maintenance window.
- C. Incorrect.
Incorrect. Rebuilding each instance is overly disruptive and not the recommended approach. You can use automatic live migration where supported and plan a reboot only if a shape uses local NVMe.
- D. Incorrect.
Incorrect. Converting to bare metal does not bypass maintenance events. Bare metal instances can also be impacted and often require an outage or reboot, especially if they include local NVMe storage.