Why is this situation occurring?

A vSAN administrator is investigating vSAN performance related problems but cannot find any vSAN performance statistics on the cluster summary page.

Why is this situation occurring?
A . The administrator has read-only permissions on the cluster level.
B. vSAN Performance service is not enabled.
C. The vRealize Operations Manager is not integrated with vSAN cluster.
D. vSAN statistics are only available via CLI.

View Answer

Answer: B

Explanation:

vSAN performance statistics are not available on the cluster summary page if the vSAN Performance service is not enabled. This service is responsible for collecting and displaying performance data for vSAN components such as disk groups, virtual machines and virtual disks. Without this service enabled, vSAN performance statistics will not be available on the vSphere Web Client, and the administrator will not be able to monitor the performance of the vSAN cluster.

To enable vSAN Performance service, the vSAN administrator can go to the vSphere Web Client, navigate to the vSAN cluster, click on the Configure tab, and then click on Services. Locate the vSAN Performance service, and click on the Start button.

This is explained in VMware vSAN documentation in the section "Monitoring vSAN Performance"

Reference: https://docs.vmware.com/en/VMware-vSphere/7.0/vsphere-vsan-70-admin-guide/GUID-7E8F6C98-7C0B-4D21-8F1A-F3A3A9F4F4A4.html