VMware Cloud on AWS Specialist — Question 49

An environment is running a cluster with six i3.metal hosts in the VMware Cloud on AWS software-defined data center (SDDC). If one host fails, what happens after a new host is automatically added to the cluster?

Answer options

• A. The SDDC and NVMe drives backing VMware vSAN capacity are unmounted from the failed host and attached to the new host. There is no VMware vSAN rebuild required.
• B. The VMware vSAN rebuild starts in the background. Performance might be degraded during rebuild and the failures to tolerate (FTT) is lowered to 0.
• C. The VMware vSAN rebuild starts in the background. Performance might be degraded during rebuild and the failures to tolerate (FTT) is lowered to 1.
• D. A notification is received from VMware Support to start the VMware vSAN rebuild. Performance might be degraded during rebuild.

Correct answer: C

Explanation

The correct answer is C because when a new host is added after a failure, the VMware vSAN rebuild process initiates, allowing the system to restore redundancy. Performance degradation can occur during this process, and the failures to tolerate (FTT) is set to 1 to maintain some level of data protection. Options A and D incorrectly imply that no rebuild is needed or that VMware Support is involved, while option B incorrectly sets FTT to 0, which does not maintain any redundancy.