VCP-VVF Troubleshoot And Optimize Practice Question
An administrator is planning storage performance troubleshooting and optimization for an all-flash vSAN 9.0 cluster hosting heavy database workloads. Which THREE best practices should be implemented to ensure optimal vSAN performance? (Choose three.)
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
✓
Ensure dedicated high-speed network infrastructure (10GbE or 25GbE+) with proper MTU (Jumbo Frames, 9000 bytes) for vSAN VMkernel traffic.
All-flash vSAN best practices include maintaining adequate free space (e.g., keeping utilization below 70-80% for optimal snapshot and rebalance operations), using multiple disk groups per host if hardware permits to parallelize I/O, ensuring network bandwidth (e.g., 10GbE/25GbE+), and proper queue depth settings.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Disable all storage policies to allow unconstrained direct access to physical flash media.
Why it's wrong here
Storage policies are mandatory for defining vSAN object properties (failures to tolerate, striping) and cannot be disabled.
- ✓
Ensure dedicated high-speed network infrastructure (10GbE or 25GbE+) with proper MTU (Jumbo Frames, 9000 bytes) for vSAN VMkernel traffic.
Why this is correct
vSAN traffic is sensitive to network latency and throughput; high-speed networks and jumbo frames reduce CPU overhead and latency.
- ✓
Maintain sufficient free capacity on the vSAN datastore (typically keeping utilization below 70-80%) to allow efficient object rebalancing, snapshot operations, and space reclamation.
Why this is correct
High utilization on vSAN can severely impact performance and prevent successful component rebalancing or snapshots.
- ✗
Configure software iSCSI binding for all internal vSAN cache tiers.
Why it's wrong here
vSAN uses native local storage controllers and disk groups, not software iSCSI binding.
- ✓
Configure multiple disk groups per ESXi host when appropriate to distribute I/O load across multiple cache and capacity devices.
Why this is correct
Multiple disk groups increase parallelization and IOPS capacity per host.
About these practice questions
This VCP-VVF question is part of Courseiva's 517-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official VMware exam blueprint
This VCP-VVF practice question is part of Courseiva's free VMware 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 VCP-VVF exam.