Exam 5V0-21.21 topic 1 question 39 discussion

Actual exam question from VMware's 5V0-21.21

Question #: 39
Topic #: 1

During a planning session for new vSAN clusters in multiple 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?

A. Enable operations reserve. A minimum cluster of 3 vSAN nodes.
B. Enable host build reserve. A minimum cluster of 4 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.

Show Suggested Answer

Suggested Answer: B 🗳️

by dikboy at Oct. 25, 2021, 12:32 p.m.

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exam_survivor

3 years, 1 month ago

Selected Answer: B

B for sure, as highest mitigation is requested. With 4 hosts, you always have one host for full rebuilds, with 3 hosts there is no rebuild possible.

upvoted 4 times

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Lazylinux

3 years, 6 months ago

B for sure Verify that the vSAN cluster: Is not configured as a stretched cluster or ROBO cluster. Has no fault domains and nested fault domains created. Has a minimum of four hosts. https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.vsan-monitoring.doc/GUID-AAE07331-552F-4BD7-908C-EE2F993AE343.html

upvoted 2 times

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dikboy

3 years, 8 months ago

I think it's 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/

upvoted 3 times

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