PAS-C01 Design of SAP Workloads on AWS Practice Question
A company plans to migrate its SAP ERP system from an on-premises environment to AWS. The system uses an Oracle database. Which AWS service provides the most cost-effective and high-performance storage for the Oracle data files?
⚠ Common exam trap
Candidates often confuse Amazon EFS or S3 as viable database storage options due to their scalability and durability, but they fail to recognize that Oracle databases require block-level storage with consistent low latency and high IOPS, which only EBS io2 Block Express provides for SAP workloads.
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 EBS io2 Block Express volumes
Amazon EBS io2 Block Express volumes provide the highest performance and durability for Oracle database workloads on AWS, offering up to 256,000 IOPS per volume and sub-millisecond latency. They are the most cost-effective choice for SAP ERP Oracle data files because they deliver consistent, high-throughput performance required for SAP's demanding I/O patterns, while allowing you to pay only for provisioned capacity without upfront costs. io2 volumes also support multi-attach and are designed for mission-critical databases, making them the optimal storage for Oracle data files in SAP on AWS.
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 EBS io2 Block Express volumes
Why this is correct
Provides high performance for databases.
- ✗
EC2 Instance Store
Why it's wrong here
Instance Store is temporary.
- ✗
Amazon EFS
Why it's wrong here
EFS is file storage.
- ✗
Amazon S3
Why it's wrong here
S3 is not block storage.
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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