1Z0-1072-25 Question 189
Single answerYour analytics application is experiencing I/O bottlenecks on a block volume configured with a Balanced performance level. You need to improve throughput with minimal downtime. Which approach should you take to optimize the block volume� performance?
- A
Detach the volume, terminate it, create a new volume at a Higher Performance level, and then restore from a backup.
- B
Use the Console or CLI to change the existing volume� performance setting from Balanced to Higher Performance while it remains attached.
- C
Increase the shape of the compute instance to a larger configuration, keeping the same Balanced performance level on the block volume.
- D
Add local ephemeral storage to the compute instance and move the workload to the ephemeral drives for higher throughput.
Show answer and explanation
Correct answer: B
Explanation
OCI block volumes allow you to adjust performance settings on the fly, letting you switch from a Balanced to a Higher Performance level to increase IOPS and throughput. This change can be done via the Console or CLI with minimal disruption to running applications. For more details, refer to Oracle Cloud Infrastructure documentation on Managing Block Volumes (https://docs.oracle.com/en-us/iaas/Content/Block/Tasks/managingvolumes.htm).
- A. Incorrect.
Incorrect. Detaching, terminating, and recreating the volume introduces significant downtime and complexity. While this method eventually provides a volume at a Higher Performance level, it is not the minimal-downtime approach.
- B. Correct.
Correct. Oracle Cloud Infrastructure (OCI) supports dynamically changing the performance setting of a block volume from Balanced to Higher Performance with minimal downtime. The volume can remain attached to the instance during the update.
- C. Incorrect.
Incorrect. While increasing the instance shape might give you more CPU and memory resources, it does not directly affect the block volume� performance setting. The bottleneck from the Balanced level setting wouldn't be resolved.
- D. Incorrect.
Incorrect. Ephemeral storage exists only on certain shapes and is not a direct substitute for improving block volume performance. Ephemeral drives are suitable for temporary data but do not replace block volumes for persistent storage needs.