Once you have the VASA provider added or the user-defined datastore tags created, you can create storage policies to define VM placement guidelines. For example, LUNs thin provisioned, wherein Thin Provisioned Volume, being a capability, can be categorized so that VMs running applications that do not demand first-write performance can be placed on these datastores. The first-write performance could be impacted on a thin provisioned volume because the volume should be increased in size before the data is first written to it.
VM storage policies are enabled, by default, but it is important to verify the same. Navigate to the vCenter Inventory home and click on VMware Storage Polices. Click on the Enable VMware Storage Policies icon (
) to view the status of the VMware storage policies. It could be either Enabled, Disabled, or Unknown. Its status can be changed at the Cluster or Host level.