VMware App Volumes Specialist (2021) — Question 73

A vSAN administrator notices that all the applications on a vSAN cluster are suffering from performance degradation. The main applications on this cluster are very random write-intensive and generate a lot of i/o. De-staging seems to be going awfully slow.

Given the following information:

• Each host has a single disk group.
• Each disk group has 7 capacity disks.
• The size of each cache disk is 600 GB.

How should the administrator solve this problem?

Answer options

• A. Add additional disk groups
• B. Add more capacity disks
• C. Add more cache disks
• D. Increase the size of cache disks

Correct answer: D

Explanation

Increasing the size of cache disks (option D) will provide more space for caching write operations, which is essential for improving performance in write-intensive environments. Options A and B do not address the immediate issue of cache capacity, while option C, although it may help, is less effective than simply increasing the cache size in this scenario.