VMware App Volumes Specialist (2021) — Question 25

An administrator is planning to deploy workloads on a six node vSAN cluster, and all nodes are distributed equally across three racks.
Which action is required to ensure that the workload VMs remain compliant with the default vSAN policy after a complete rack failure?

Answer options

• A. Add an additional rack with two hosts, and configure vSAN with four fault domains and FTT=1 (erasure coding).
• B. Add two additional hosts per rack, and configure vSAN with three fault domains and FTT=1.
• C. Add an additional host per rack, and configure vSAN with three fault domains and FTT=2.
• D. Add an additional rack with two hosts, and configure vSAN with four fault domains and FTT=1 (mirroring).

Correct answer: D

Explanation

The correct option, D, ensures that with four fault domains and FTT=1, the system can tolerate a complete rack failure while maintaining VM availability. Options A and B do not provide sufficient fault tolerance against a rack failure, and option C's FTT=2 would require more hosts than available to sustain operations after such a failure.