QuestionQ89

Analyze and Optimize VM Performance

An administrator is deploying several new application VMs on a Nutanix cluster. The application is highly transactional, with a 28/72 random read/write ratio.

What should the administrator do?

  • A Add a minimum of four SSDs to each node to ensure all writes go to the SSDs.
  • B Add a minimum of four virtual disks to each VM, and aggregate them on guest OS level.
  • C Add one large SSD to each node and enable Flash Mode for the VMs.
  • D Add one large virtual disk to each VM and use it for all application data.
Explanation

For a random, write-heavy transactional workload, aggregating at least four virtual disks within the guest OS provides parallel I/O paths and avoids concentrating application I/O on a single virtual disk. Flash Mode is intended to improve read performance and does not address the primary write-intensive requirement.

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