PAS-C01 Design of SAP Workloads on AWS Practice Question
A company is designing a highly available SAP NetWeaver AS ABAP environment on AWS with a 2-node ASCS/ERS cluster. Which TWO of the following must be configured to ensure a successful failover? (Choose 2)
⚠ Common exam trap
A common pitfall in AWS SAP exams is thinking that instance store volumes are suitable for persistent SAP cluster directories, but they are ephemeral and will cause data loss on instance stop or termination, making them invalid for failover-critical components.
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
✓
A shared file system (e.g., Amazon EFS) for /sapmnt
SAP NetWeaver AS ABAP requires a shared /sapmnt directory accessible by both nodes in an ASCS/ERS cluster for consistent profile and configuration access during failover. Amazon EFS provides a POSIX-compliant, NFS-based shared file system that supports concurrent access from multiple EC2 instances across Availability Zones, which is essential for the cluster to function correctly. Option E is correct because a virtual IP address (VIP) is needed to provide a stable endpoint for clients to connect to the ASCS instance, regardless of which node is active. This can be achieved using Route53 health checks with failover routing or AWS CLI scripts that reassign the IP to the active node, ensuring seamless failover.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
An AWS ASW (Automated SAP Workload) service
Why it's wrong here
No such service exists.
- ✗
Amazon EBS io1 volumes with Multi-Attach enabled for the database
Why it's wrong here
Multi-Attach not supported for Linux; database should use separate volumes.
- ✓
A shared file system (e.g., Amazon EFS) for /sapmnt
Why this is correct
Required for shared profile data.
- ✗
Each node must have its own /usr/sap/<SID>/ASCS and /usr/sap/<SID>/ERS directory on instance store
Why it's wrong here
Instance store is ephemeral; EBS should be used.
- ✓
A virtual IP address (VIP) using Route53 health checks or the AWS CLI
Why this is correct
Clients need a stable IP to connect to ASCS.
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