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VMware 5V0-21.21 Exam - Topic 3 Question 95 Discussion

data centers, the customer relayed the following information:* Highest possible mitigation during a host failure in terms of capacity.* A constraint in this year's IT budget.What should the architect recommend?
B) Enable host build reserve. A minimum cluster of 4 vSAN nodes.
A) Enable operations reserve. A minimum cluster of 3 vSAN nodes.
C) Enable performance services. A minimum cluster of 6 vSAN nodes.
D) Enable IOInsight Metrics. A minimum cluster of 2 vSAN ROBO nodes.

VMware 5V0-21.21 Exam - Topic 3 Question 95 Discussion

Actual exam question for VMware's 5V0-21.21 exam
Question #: 95
Topic #: 3
[All 5V0-21.21 Questions]

data centers, the customer relayed the following information:

* Highest possible mitigation during a host failure in terms of capacity.

* A constraint in this year's IT budget.

What should the architect recommend?

Show Suggested Answer Hide Answer
Suggested Answer: B

Performance services and IOinsight Metrics used for performance analysis. Operation reserve for internal VSAN operations. https://blogs.vmware.com/virtualblocks/2020/09/24/effective-capacity-management-with-vsan-7-update-1/


by Kimi at May 03, 2026, 04:18 AM

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Louvenia
4 days ago
I agree with A. It balances capacity and cost effectively.
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Rolande
9 days ago
Option C seems overkill. Six nodes? Not feasible with our budget.
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Kristofer
14 days ago
But we have a budget constraint. Four nodes in option B might be too much.
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Chantay
19 days ago
I think option A is the best. Three nodes should cover host failures.
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Adolph
25 days ago
Wait, are we sure 2 nodes is enough for ROBO?
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Daniel
30 days ago
D might be too light on capacity for a host failure.
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Jesusita
1 month ago
C seems excessive, 6 nodes? Really?
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Ressie
1 month ago
I think B is too much for the budget constraints.
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Tamar
2 months ago
Option A sounds solid for host failure!
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Luther
2 months ago
I vaguely recall that enabling performance services might require more nodes, but I don't think that's the best option given the budget issue.
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Ming
2 months ago
I feel like we practiced a similar question where 4 nodes were recommended, but I can't remember the specifics about the budget constraints.
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Iola
2 months ago
I think enabling operations reserve makes sense for capacity during a host failure, but I can't recall if 3 nodes is enough.
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Floyd
2 months ago
I remember we discussed the importance of having enough nodes for redundancy, but I'm not sure if 3 or 4 is the right number for this scenario.
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Lavonda
2 months ago
I vaguely remember that performance services require more nodes, but I don't think that's the priority here with the budget issue.
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Tequila
4 months ago
I feel like we practiced a similar question where budget constraints were a factor, and I think 4 nodes might be too much given the budget.
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Amber
4 months ago
I think enabling operations reserve makes sense for capacity during a host failure, but I can't recall if 3 nodes is enough for that.
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Caprice
4 months ago
I remember we discussed the importance of having enough nodes for redundancy, but I'm not sure if 3 or 4 is the right number here.
upvoted 0 times
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