PAS-C01 Design of SAP Workloads on AWS Practice Question
A company is migrating an SAP ERP system on Oracle to SAP HANA on AWS. The migration requires near-zero downtime. The company has a test environment that can be used for the migration rehearsal. The SAP HANA database will be 3 TB. Which migration approach should the company use to achieve near-zero downtime?
⚠ Common exam trap
Many candidates assume AWS DMS is the universal tool for any database migration to AWS, but for SAP HANA migrations, the certified and supported approach is SAP's own DMO tool, not a generic AWS service.
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
✓
Use SAP Software Update Manager (SUM) with Database Migration Option (DMO).
SAP Software Update Manager (SUM) with Database Migration Option (DMO) is the correct approach because it combines the SAP system upgrade and the migration from Oracle to SAP HANA into a single process, leveraging SAP's own tools to minimize downtime. DMO uses a trigger-based replication mechanism that can achieve near-zero downtime by keeping the source Oracle database and target SAP HANA database synchronized during the migration window, which is critical for a 3 TB database where traditional backup-restore would exceed downtime limits.
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 AWS Database Migration Service (DMS) for ongoing replication.
Why it's wrong here
DMS does not support SAP HANA as a target for zero-downtime migration.
- ✗
Perform a full backup of the Oracle database and restore to SAP HANA.
Why it's wrong here
Requires significant downtime.
- ✓
Use SAP Software Update Manager (SUM) with Database Migration Option (DMO).
Why this is correct
DMO supports near-zero downtime migration.
- ✗
Use SAP HANA Studio to export the Oracle schema and import into HANA.
Why it's wrong here
Export/import requires downtime.
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