NCP-DB practice question 6 of 35

An administrator configures VM Host Affinity for database server VMs on a Nutanix AHV-powered cluster, intending to optimize HA by ensuring that VMs are placed on separate hosts. After a host failure, the administrator notices that database VMs are clustered on a single remaining host, risking another outage. How could the administrator avoid this scenario in future host failures?

Full set: 251 questions

Answer options

A: Assign additional backup VMs within the same host to maintain service.

B: Increase the number of affinity zones within the cluster

C: Configure automatic host failover in Prism Central.

D: Set anti-affinity rules to spread VMs across multiple nodes dynamically. Correct answer

Correct Answer:

D. Set anti-affinity rules to spread VMs across multiple nodes dynamically.

Explanation

An anti-affinity policy instructs AHV to keep the specified VMs on different hosts whenever capacity allows and to re-distribute them automatically after a host failure, preventing a second outage.

Why Incorrect

A. Extra VMs on same host do not mitigate the single-host risk.
B. “Affinity zones” is not an AHV construct; cannot solve placement.
C. Prism Central has no generic “automatic host failover” toggle; placement is rule-based.

References

1. Nutanix AOS Administration Guide v6.7, “VM-VM Anti-Affinity”, p. 231 – explains automatic re-distribution across hosts.

2. Nutanix Best Practices for Databases on AHV (2023), Section 3.2 – recommends anti-affinity for HA database VMs.

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