VCP-DCV Configure and Manage vSphere Storage Practice Question
An administrator needs to create a datastore cluster for a set of VMs that require high availability. The VMs should be automatically balanced across datastores based on I/O latency. Which feature must be enabled on the datastore cluster?
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
✓
Storage DRS with I/O metric enabled.
Storage DRS with I/O metric enabled allows automatic balancing based on I/O latency. Option A is incorrect because SIOC is a per-datastore feature for controlling I/O shares and limits, not for balancing across datastores in a cluster. Option B is incorrect because vSphere HA provides high availability for VMs in case of host failure, not storage balancing. Option C is incorrect because Storage DRS without the I/O metric uses only space capacity to balance VMs, not I/O latency. Option D is correct because Storage DRS with the I/O metric enables I/O latency-based balancing across datastores in the cluster.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Storage I/O Control (SIOC) on each datastore.
Why it's wrong here
Incorrect: SIOC is for I/O prioritization within a datastore, not for balancing across datastores.
- ✗
vSphere HA for the datastore cluster.
Why it's wrong here
Incorrect: vSphere HA provides host-level failover, not storage balancing.
- ✗
Storage DRS without I/O metric, using space only.
Why it's wrong here
Incorrect: Space-based balancing does not consider I/O latency.
- ✓
Storage DRS with I/O metric enabled.
Why this is correct
Correct: Storage DRS with I/O metric can balance VMs based on storage I/O latency.
Go deeper
Related to this question
About these practice questions
This VCP-DCV question is part of Courseiva's 498-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 by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This VCP-DCV 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-DCV exam.