PAS-C01 Migration Practice Question
A company is migrating an SAP HANA database to AWS using the SAP HANA System Replication (HSR) with asynchronous mode. The database size is 5 TB. The migration must be completed within 8 hours. Which AWS resource is most critical to ensure the initial data synchronization completes within the time window?
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
✓
EC2 instance with high network bandwidth and Enhanced Networking
The initial data synchronization in SAP HANA System Replication (HSR) is network-intensive, as it transfers the full 5 TB database from the source to the target. High network bandwidth (e.g., using Enhanced Networking with ENA) directly reduces transfer time, making it the most critical resource to meet the 8-hour window. While EBS gp3 volumes (Option C) provide sufficient IOPS, they are secondary because the bottleneck is network throughput, not storage performance. Option B (EBS snapshots) is not used in HSR, and Option D (S3 multipart upload) is irrelevant for HSR.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
EC2 instance with high network bandwidth and Enhanced Networking
Why this is correct
HSR initial sync is network-bound; high bandwidth instances reduce sync time.
- ✗
EBS snapshots for the initial data copy
Why it's wrong here
HSR uses log shipping, not snapshots.
- ✗
EBS gp3 volumes with sufficient IOPS
Why it's wrong here
Storage performance is important but the bottleneck is network bandwidth for sync.
- ✗
Amazon S3 multipart upload for initial data
Why it's wrong here
S3 is not used in HSR.
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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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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