PAS-C01 Design of SAP Workloads on AWS Practice Question
A company runs SAP NetWeaver on AWS. The system uses a shared file system for transport files via Amazon EFS. Recently, the transport directory performance has degraded. Which configuration change is most likely to improve the I/O performance for the transport directory?
⚠ Common exam trap
A common mix-up: candidates assume Bursting Throughput mode (Option D) is sufficient for all EFS workloads, but they overlook that SAP transport directories require sustained high I/O that can exhaust burst credits, making Max I/O mode the better choice for consistent performance.
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
✓
Enable EFS performance mode with Max I/O.
Enabling EFS Max I/O performance mode provides higher throughput and IOPS for workloads with high I/O demands, such as SAP transport directories. Max I/O mode scales horizontally by distributing file data across multiple servers, which improves performance for parallel access patterns common in SAP transport operations.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Enable EFS performance mode with Max I/O.
Why this is correct
Max I/O mode optimizes for high throughput and large file operations.
- ✗
Migrate the transport directory to an Amazon EBS volume.
Why it's wrong here
EBS is not a shared file system; transport directory must be shared across multiple servers.
- ✗
Use Amazon S3 with a mount point.
Why it's wrong here
S3 is not a POSIX-compliant file system suitable for SAP transports.
- ✗
Use EFS with Bursting Throughput mode.
Why it's wrong here
Bursting mode may not provide sustained performance for transport operations.
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