Nutanix Certified Associate Practice Exam

What affects the performance of guest VMs during data migration to a Nutanix cluster?

1. Increased latency for VM restarts

2. Temporary decrease in SSD usage

3. Increased SSD utilization during data ingestion

4. General system slowdown across all VMs

The correct answer is: Increased SSD utilization during data ingestion

When migrating data to a Nutanix cluster, increased SSD utilization during data ingestion is a critical factor affecting the performance of guest VMs. This occurs because, during the migration process, data is read from the source and written to the destination datastore, which often involves significant I/O operations. The SSDs in the Nutanix cluster are leveraged to handle these read and write operations efficiently, which can lead to higher utilization rates. High SSD utilization is indicative of the system’s ability to process and manage the incoming data effectively. However, it can also impact the performance of other guest VMs running on the same nodes, particularly if the system resources (bandwidth, IOPS, etc.) become constrained. It ensures that while data migration is taking place, workloads are managed, but there might be a temporary performance impact if the cluster is under heavy load. The focus on SSD utilization underscores the importance of understanding storage performance in a hyper-converged infrastructure like Nutanix, particularly during data migration processes where resource demands can fluctuate significantly.