- A
Use Amazon FSx for Windows File Server to host the /sapmnt share.
Why wrong: FSx for Windows is not optimized for SAP on Linux.
- B
Use an instance store volume on the ASCS instance and share it via NFS.
Why wrong: Instance store is ephemeral and not persistent.
- C
Create a secondary EBS volume and attach it to both the ASCS and PAS instances, then use a cluster-aware filesystem like OCFS2.
Why wrong: Multi-attach EBS does not support multiple writers without a cluster filesystem, and it's complex.
- D
Deploy Amazon EFS and mount it on all instances as /sapmnt.
EFS is a managed NFS service that is highly available and persistent.
Question 1,706 of 1,733
Implementing HA for SAP ASCS /sapmnt Using Amazon EFS
This PAS-C01 practice question tests your understanding of operations and maintenance. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. A key principle to apply: amazon EFS. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company runs SAP on AWS with a distributed system: an SAP Central Services (ASCS) instance, a primary application server (PAS), and additional dialog instances (DI). All instances are in a single Availability Zone. The company wants to implement high availability for the ASCS instance using a shared filesystem for the /sapmnt directory. The ASCS instance uses a single EBS volume for /sapmnt. The operations team plans to use a Network File System (NFS) solution to share /sapmnt between instances. Which approach should the team use to achieve a highly available shared filesystem?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"primary"Why it matters: Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.
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
✓
Deploy Amazon EFS and mount it on all instances as /sapmnt.
Option D is correct because Amazon EFS provides a managed NFS filesystem that is highly available and durable across multiple Availability Zones, eliminating the single point of failure. It can be mounted on multiple EC2 instances simultaneously, making it suitable for sharing /sapmnt. Option A is incorrect because Amazon FSx for Windows File Server is designed for Windows-based workloads, not Linux-based SAP systems. Option B is incorrect because instance store volumes are ephemeral and data is lost on instance stop/termination. Option C is incorrect because a single EBS volume cannot be attached to multiple instances simultaneously (except with a cluster filesystem like OCFS2, which is complex and not recommended for this use case).
Key principle: Amazon EFS
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Use Amazon FSx for Windows File Server to host the /sapmnt share.
Why it's wrong here
FSx for Windows is not optimized for SAP on Linux.
- ✗
Use an instance store volume on the ASCS instance and share it via NFS.
Why it's wrong here
Instance store is ephemeral and not persistent.
- ✗
Create a secondary EBS volume and attach it to both the ASCS and PAS instances, then use a cluster-aware filesystem like OCFS2.
Why it's wrong here
Multi-attach EBS does not support multiple writers without a cluster filesystem, and it's complex.
- ✓
Deploy Amazon EFS and mount it on all instances as /sapmnt.
Why this is correct
EFS is a managed NFS service that is highly available and persistent.
Clue confirmation
The clue word "primary" in the question point toward this answer.
Related concept
Amazon EFS
Common exam traps
Common exam trap: answer the scenario, not the keyword
Candidates may think that a shared EBS volume with a cluster filesystem is the way to go, but Amazon EFS is a fully managed NFS solution that provides high availability without requiring manual clustering.
Detailed technical explanation
How to think about this question
Treat this as a scenario question. Identify the problem, the constraint, and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- Amazon EFS
- NFS
- High Availability
- SAP /sapmnt
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Amazon EFS
Real-world example
How this comes up in practice
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
What to study next
Got this wrong? Here's your next step.
Review amazon EFS, then practise related PAS-C01 questions on the same topic to reinforce the concept.
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FAQ
Questions learners often ask
What does this PAS-C01 question test?
Operations and Maintenance — This question tests Operations and Maintenance — Amazon EFS.
What is the correct answer to this question?
The correct answer is: Deploy Amazon EFS and mount it on all instances as /sapmnt. — Option D is correct because Amazon EFS provides a managed NFS filesystem that is highly available and durable across multiple Availability Zones, eliminating the single point of failure. It can be mounted on multiple EC2 instances simultaneously, making it suitable for sharing /sapmnt. Option A is incorrect because Amazon FSx for Windows File Server is designed for Windows-based workloads, not Linux-based SAP systems. Option B is incorrect because instance store volumes are ephemeral and data is lost on instance stop/termination. Option C is incorrect because a single EBS volume cannot be attached to multiple instances simultaneously (except with a cluster filesystem like OCFS2, which is complex and not recommended for this use case).
What should I do if I get this PAS-C01 question wrong?
Review amazon EFS, then practise related PAS-C01 questions on the same topic to reinforce the concept.
Are there clue words in this question I should notice?
Yes — watch for: "primary". Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.
What is the key concept behind this question?
Amazon EFS
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Last reviewed: Jun 20, 2026
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.
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