PAS-C01 Design of SAP Workloads on AWS Practice Question
An SAP administrator needs to monitor the disk I/O performance of EBS volumes attached to an SAP HANA instance. Which AWS service should be used to capture the average read latency and queue depth metrics?
⚠ Common exam trap
Candidates often confuse AWS CloudTrail (which logs API calls) with CloudWatch (which monitors performance metrics), or assume AWS Config or AWS Health provide operational performance data when they are designed for configuration auditing and service health notifications, respectively.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Amazon CloudWatch
Amazon CloudWatch provides the metrics necessary to monitor disk I/O performance, including `VolumeReadOps`, `VolumeQueueLength`, and `VolumeReadBytes` for EBS volumes. These metrics allow you to calculate average read latency (by dividing `VolumeReadBytes` by `VolumeReadOps`) and directly observe queue depth via `VolumeQueueLength`, making it the correct service for SAP HANA disk I/O monitoring.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
AWS Config
Why it's wrong here
AWS Config tracks configuration changes, not performance metrics.
- ✗
AWS Health
Why it's wrong here
AWS Health provides service health status, not performance metrics.
- ✓
Amazon CloudWatch
Why this is correct
CloudWatch collects and provides metrics like AverageReadLatency and QueueDepth for EBS volumes.
- ✗
AWS CloudTrail
Why it's wrong here
CloudTrail records API calls, not performance metrics.
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