PAS-C01 Operations and Maintenance Practice Question
A company is running an SAP application on an SAP HANA database in a multi-AZ deployment on AWS. The operations team notices that the system is experiencing high latency during peak hours. Upon investigation, they find that the EBS volumes attached to the HANA instances are frequently exceeding the provisioned IOPS limit. Which of the following is the MOST effective action to resolve this issue?
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
✓
Increase the volume size of the EBS volumes to increase the baseline IOPS.
Increasing the volume size of EBS volumes increases the baseline IOPS (for gp3) or allows higher provisioned IOPS (for io2), directly addressing the IOPS limit. Option B is wrong because switching to General Purpose SSD (gp3) may not guarantee the needed IOPS if burst credits are exhausted. Option C is wrong because enabling EBS optimization is already enabled for current generation instances and does not increase IOPS limits. Option D is wrong because reducing concurrent connections does not address the IOPS limit of the EBS volumes.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Increase the volume size of the EBS volumes to increase the baseline IOPS.
Why this is correct
Increasing volume size directly increases the baseline IOPS for gp3 volumes or allows higher provisioned IOPS for io2 volumes, resolving the IOPS limit issue.
- ✗
Switch from Provisioned IOPS SSD (io2) to General Purpose SSD (gp3) volumes.
Why it's wrong here
Switching to gp3 may not provide sufficient IOPS for the workload if the burst credits are exhausted; gp3 baseline IOPS can be increased but requires a larger volume size.
- ✗
Enable EBS optimization on the EC2 instances.
Why it's wrong here
EBS optimization is already enabled for current generation instances; enabling it does not increase the IOPS limits of the EBS volumes.
- ✗
Reduce the number of concurrent connections to the SAP HANA database.
Why it's wrong here
Reducing concurrent connections does not address the IOPS limit of the EBS volumes; the issue is with the storage performance, not the database connections.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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