Storage I/O Control (SIOC) is marked as "Not Supported" under Datastore>General>Configure>Datastore Capabilities
vSphere 8.x
Storage I/O control is not supported with NFS 4.1
https://docs.vmware.com/en/VMware-vSphere/8.0/vsphere-storage/GUID-9282A8E0-2A93-4F9E-AEFB-952C8DCB243C.html#:~:text=An%20NFS%20client%20built%20into,it%20for%20its%20storage%20needs