Nutanix Certified Associate Practice Exam

To ensure maximum I/O throughput for an application needing extensive scratch data, what should an administrator implement?

1. Create a virtual disk for each VM's PCI

2. Create multiple virtual disks in a single VM's virtual SCSI

3. Create a volume group with several virtual disks

4. Create a single volume group with one disk

The correct answer is: Create a volume group with several virtual disks

Creating a volume group with several virtual disks is the most effective approach for ensuring maximum I/O throughput for an application that requires extensive scratch data. By utilizing a volume group that aggregates multiple virtual disks, the system can distribute I/O operations across all the disks within the group. This distribution not only enhances performance but also increases redundancy and fault tolerance, as the workload is shared among various disks, reducing contention and improving overall throughput. The increased number of disks in the volume group allows for higher aggregate I/O operations per second (IOPS), facilitating better data access speed and supporting the demands of applications that handle large datasets or require rapid processing. This setup is particularly beneficial for workloads that are write-intensive or require high-speed data access, making it a suitable choice for applications involving scratch data. In contrast, options like creating a single volume group with one disk would limit performance because there would be no additional disks to share the I/O load. Similarly, while creating multiple virtual disks within a single VM's virtual SCSI might improve performance to some extent by allowing separate I/O paths, it does not offer the same level of optimization and scalability that a well-structured volume group can provide. Lastly, creating a virtual disk for each VM's PCI is less relevant when considering