← PAS-C01·Amazon Web Services

Question 371 of 1,733

Design of SAP Workloads on AWS →mediumMultiple ChoiceObjective-mapped

Fixing LVM Stripe Width for SAP HANA on AWS

This PAS-C01 practice question tests your understanding of design of sap workloads on aws. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 runs SAP HANA on AWS using an m5.24xlarge instance. The storage is configured with multiple EBS io1 volumes striped with LVM. Recently, the database performance has degraded. CloudWatch shows that the EBS write latency averages 5 ms, and the queue depth is consistently below 1. What is the most likely cause of the performance degradation?

Clue words in this question

Noticing these words before you look at the options changes how you read each choice.

Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.

A
The LVM stripe width is misconfigured causing uneven I/O distribution
Improper stripe width can lead to hot spots.
B
The EBS-optimized instance feature is not enabled
Why wrong: m5.24xlarge is EBS-optimized by default.
C
The EBS volume type should be changed to gp3
Why wrong: gp3 may not provide consistent IOPS needed for HANA.
D
The EBS write latency is too high and requires a larger instance
Why wrong: 5 ms is within acceptable range for HANA.

Full breakdown with real-world context →

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

✓

The LVM stripe width is misconfigured causing uneven I/O distribution

The correct answer is A because with EBS write latency averaging 5 ms and queue depth consistently below 1, the storage subsystem is not saturated; the bottleneck is likely an uneven distribution of I/O across the LVM striped volumes. A misconfigured stripe width (e.g., too small or not aligned with the SAP HANA page size of 16 KB) can cause certain volumes to handle disproportionate write traffic, leading to localized latency spikes and overall performance degradation even when aggregate metrics appear acceptable.

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.

✓
The LVM stripe width is misconfigured causing uneven I/O distribution
Why this is correct
Improper stripe width can lead to hot spots.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
The EBS-optimized instance feature is not enabled
Why it's wrong here
m5.24xlarge is EBS-optimized by default.
✗
The EBS volume type should be changed to gp3
Why it's wrong here
gp3 may not provide consistent IOPS needed for HANA.
✗
The EBS write latency is too high and requires a larger instance
Why it's wrong here
5 ms is within acceptable range for HANA.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates often assume high latency or low queue depth automatically points to an instance or volume type issue, rather than considering LVM striping misconfiguration as the root cause of uneven I/O distribution.

Detailed technical explanation

How to think about this question

Under the hood, LVM stripe width determines the chunk size written to each underlying EBS volume; if the stripe width is smaller than the SAP HANA I/O request size (typically 16 KB for log writes), a single write can be split across multiple volumes, increasing latency due to additional network round trips. In real-world scenarios, a common misconfiguration is using the default LVM stripe width (64 KB) instead of matching it to the application’s block size, causing uneven I/O distribution and degraded performance even when aggregate throughput is sufficient.

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.

TExam Day Tips

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.

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.

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

Related PAS-C01 practice-question pages

Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.

Design of SAP Workloads on AWS practice questions

Practise PAS-C01 questions linked to Design of SAP Workloads on AWS.

Technology practice questions

Practise PAS-C01 questions linked to Technology.

Migration practice questions

Practise PAS-C01 questions linked to Migration.

Operations and Maintenance practice questions

Practise PAS-C01 questions linked to Operations and Maintenance.

PAS-C01 fundamentals practice questions

Practise PAS-C01 questions linked to PAS-C01 fundamentals.

PAS-C01 scenario practice questions

Practise PAS-C01 questions linked to PAS-C01 scenario.

PAS-C01 troubleshooting practice questions

Practise PAS-C01 questions linked to PAS-C01 troubleshooting.

Practice this exam

Start a free PAS-C01 practice session

Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.

10 questions 20 questions 30 questions 50 questions Timed 30

PAS-C01 practice-test guide →Study guide →Browse all practice tests

FAQ

Questions learners often ask

What does this PAS-C01 question test?

Design of SAP Workloads on AWS — This question tests Design of SAP Workloads on AWS — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: The LVM stripe width is misconfigured causing uneven I/O distribution — The correct answer is A because with EBS write latency averaging 5 ms and queue depth consistently below 1, the storage subsystem is not saturated; the bottleneck is likely an uneven distribution of I/O across the LVM striped volumes. A misconfigured stripe width (e.g., too small or not aligned with the SAP HANA page size of 16 KB) can cause certain volumes to handle disproportionate write traffic, leading to localized latency spikes and overall performance degradation even when aggregate metrics appear acceptable.

What should I do if I get this PAS-C01 question wrong?

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

Are there clue words in this question I should notice?

Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

About these practice questions

Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →

How Courseiva writes practice questions · Editorial policy

Keep practising

Question Discussion

Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.

Loading comments…

This PAS-C01 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the PAS-C01 exam.