- A
Use AWS Database Migration Service (AWS DMS) to migrate the data directly to SAP HANA, bypassing SUM DMO.
Why wrong: AWS DMS does not support SAP HANA as a target.
- B
Increase the disk storage of the SAP HANA instance to at least 2.5 TB to accommodate the migrated data.
Increasing disk storage provides the necessary space for the migration.
- C
Compress the DB2 database on the source side to reduce its size before migration.
Why wrong: Compression may not reduce size enough, and the issue is the tablespace size being larger than disk.
- D
Split the migration into two phases: migrate the data using AWS DMS first, then use SUM for the upgrade.
Why wrong: AWS DMS does not support SAP HANA as a target, and splitting is not a standard approach.
Question 875 of 1,733
Fix 'Automatic Storage Tablespace' Error by Increasing SAP HANA Disk Space
This PAS-C01 practice question tests your understanding of migration. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. 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 is migrating its SAP Business Warehouse (BW) system from on-premises to AWS. The system uses IBM DB2 as the database and is 2 TB in size. The company wants to use the SAP BW/4HANA version on AWS. The migration must be completed within a 72-hour window. The company has a 1 Gbps AWS Direct Connect connection. The migration team decides to use the SAP Software Update Manager (SUM) with the Database Migration Option (DMO) to migrate and upgrade to BW/4HANA. During the migration, they encounter an error that the source DB2 database has a tablespace that uses automatic storage and is larger than 2 TB. The SUM DMO tool stops with an error indicating insufficient space in the target SAP HANA database. The target SAP HANA system is provisioned with 1 TB of memory and 2 TB of disk storage. The team needs to proceed with the migration. Which action should the team take to resolve this issue?
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
✓
Increase the disk storage of the SAP HANA instance to at least 2.5 TB to accommodate the migrated data.
The error occurs because the source DB2 database's tablespace using automatic storage exceeds the target SAP HANA's disk capacity of 2 TB. The SUM DMO tool requires enough space to store the migrated data during the conversion process. Increasing the disk storage of the SAP HANA instance to at least 2.5 TB (or larger to accommodate the full 2 TB source plus overhead) resolves the space issue and allows the migration to proceed. Option A is incorrect because AWS DMS does not support SAP HANA as a target for direct migration. Option C is incorrect because DB2 compression reduces storage but does not address the automatic storage tablespace size limitation that causes the SUM error. Option D is incorrect because splitting the migration into DMS and SUM phases is not supported for DB2 to HANA; SUM DMO is the recommended tool for this combined migration and upgrade.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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 (AWS DMS) to migrate the data directly to SAP HANA, bypassing SUM DMO.
Why it's wrong here
AWS DMS does not support SAP HANA as a target.
- ✓
Increase the disk storage of the SAP HANA instance to at least 2.5 TB to accommodate the migrated data.
Why this is correct
Increasing disk storage provides the necessary space for the migration.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Compress the DB2 database on the source side to reduce its size before migration.
Why it's wrong here
Compression may not reduce size enough, and the issue is the tablespace size being larger than disk.
- ✗
Split the migration into two phases: migrate the data using AWS DMS first, then use SUM for the upgrade.
Why it's wrong here
AWS DMS does not support SAP HANA as a target, and splitting is not a standard approach.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- 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
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
Visual reference
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 |
What to study next
Got this wrong? Here's your next step.
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FAQ
Questions learners often ask
What does this PAS-C01 question test?
Migration — This question tests Migration — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Increase the disk storage of the SAP HANA instance to at least 2.5 TB to accommodate the migrated data. — The error occurs because the source DB2 database's tablespace using automatic storage exceeds the target SAP HANA's disk capacity of 2 TB. The SUM DMO tool requires enough space to store the migrated data during the conversion process. Increasing the disk storage of the SAP HANA instance to at least 2.5 TB (or larger to accommodate the full 2 TB source plus overhead) resolves the space issue and allows the migration to proceed. Option A is incorrect because AWS DMS does not support SAP HANA as a target for direct migration. Option C is incorrect because DB2 compression reduces storage but does not address the automatic storage tablespace size limitation that causes the SUM error. Option D is incorrect because splitting the migration into DMS and SUM phases is not supported for DB2 to HANA; SUM DMO is the recommended tool for this combined migration and upgrade.
What should I do if I get this PAS-C01 question wrong?
Identify which PAS-C01 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 20, 2026
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