VMware App Volumes Specialist (2021) — Question 24

An architect is designing a new Hybrid five node vSAN cluster for a customer who is planning to use vRealize Automation to provision 600 virtual machines into that cluster, with expected growth up to 1,000 VM. Each VM has a 40GB thick-provisioned disk.
Which flash disk size is required for the cache tier per ESXi node to meet all requirements?

Answer options

Correct answer: D

Explanation

The correct answer is D because each VM has a 40GB disk, and with a maximum of 1,000 VMs, the total storage requirement reaches 40TB. For vSAN, a good rule of thumb is to allocate a cache size that is roughly 10% of the total capacity, which in this case would be around 4TB. However, considering the overhead and ensuring performance, 800GB per node is optimal. Options A, B, and C do not provide sufficient cache size to meet the expected growth and performance needs.