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You must verify some important requirements of the vVols dashboard to display dynamic details of the VMware Virtual Volumes (vVols) datastores and virtual machines.
The following table presents an overview of what you should verify if the vVols dashboard does not display the performance metrics for the provisioned SAN vVols datastores and virtual machines.
First-time deployment of OnCommand API Services
If you are having ONTAP clusters 9.6 or earlier, then you are using OnCommand API Services 2.1 or later.
You do not require OnCommand API Services to be registered with VASA Provider if you are using ONTAP 9.7 and later.
You must have followed the installation instructions that are provided in the OnCommand API Services Installation and Setup guide after downloading and installing OnCommand API Services from the NetApp Support Site.
Each VASA Provider instance must have a dedicated OnCommand API Services instance.
OnCommand API Services must not be shared among multiple VASA Provider instances or vCenter Servers.
OnCommand API Services is running and accessible.
You are using ONTAP 9.3 or later.
You are using appropriate credentials for the storage system.
Your storage system is active and accessible.
The virtual machine that you selected must be using at least one vVols datastore, and I/O operations are executing on the disk of the virtual machine.