PAS-C01 Migration Practice Question
An SAP system on AWS is experiencing performance issues. The system uses a shared file system (SAP transport directory) mounted from an NFS server. During migration, the team wants to improve performance and reduce complexity. Which AWS service should replace the NFS server?
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 EFS
Amazon EFS provides a fully managed NFS file system that can be shared across multiple EC2 instances, making it an ideal replacement for the NFS server in SAP transport directory scenarios. Option A (Amazon S3 with S3FS) is incorrect because S3 is object storage and S3FS is a FUSE-based tool that adds complexity and can cause performance issues, not suitable for SAP transport. Option B (Amazon FSx for Windows File Server) is incorrect because it uses SMB protocol, while SAP transport directories typically require NFS and run on Linux instances. Option C (AWS Storage Gateway file gateway) adds unnecessary complexity as it is designed for hybrid storage and caching, not as a direct NFS replacement for this use case.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Amazon S3 with S3FS
Why it's wrong here
S3 is object storage, not a POSIX-compliant file system, and S3FS may introduce performance issues.
- ✗
Amazon FSx for Windows File Server
Why it's wrong here
FSx for Windows is designed for Windows-based applications, not typically used for SAP transport.
- ✗
AWS Storage Gateway (file gateway)
Why it's wrong here
Adds an extra layer and may not be as performant as EFS.
- ✓
Amazon EFS
Why this is correct
EFS provides a scalable, managed NFS file system that is ideal for SAP transport directories.
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
Go deeper
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This PAS-C01 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the PAS-C01 exam.